PI3545-00-LGIZ

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Document overview

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• PDF pages: 37

Technical content

Datasheet sections

Features

 High Efficiency HV ZVS-Buck Topology  Wide input voltage range of 36 V to 60 V  Very fast transient response  Constant voltage or constant current operation  Constant current error amplifier and reference  Power-up into pre-biased load  Parallel capable with single wire current sharing  Two phase interleaving  Input Over/Undervoltage Lockout (OVLO/UVLO)  Output Overvoltage Protection (OVP)  Overtemperature Protection (OTP)  Fast and slow current limits  Differential amplifier for output remote sensing  User adjustable soft-start & tracking  -40°C to 125°C operating range (TJ)

Applications

 HV to PoL Buck Regulator Applications  Computing, Communications, Industrial, Automotive Equipment  Constant current output operation:  LED Lighting  Battery Charging

Package Information

 10 mm x 10 mm x 2.6 mm LGA SiP Device Output Voltage IOUT Max Set Range PI3542-00-LGIZ 2.5 V 2.2 V to 3.0 V 10 A PI3543-00-LGIZ 3.3 V 2.6 V to 3.6 V 10 A PI3545-00-LGIZ 5.0 V 4.0 V to 5.5 V 10 A PI3546-00-LGIZ 12 V 6.5 V to 14 V 9 A

Cool-Power® Rev 1.3 vicorpower.com Page 3 of 37 02/2016 800 927.9474 PI354x-00 Order Information Thermal, Storage, and Handling Information Cool-Power Output Range IOUT Max Package Transport MediaSet Range PI3542-00-LGIZ 2.5 V 2.2 V to 3.0 V 10 A 10 mm x 10 mm LGA TRAY PI3543-00-LGIZ 3.3 V 2.6 V to 3.6 V 10 A 10 mm x 10 mm LGA TRAY PI3545-00-LGIZ 5.0 V 4.0 V to 5.5 V 10 A 10 mm x 10 mm LGA TRAY PI3546-00-LGIZ 12 V 6.5 V to 14 V 9 A 10 mm x 10 mm LGA TRAY Name Rating Storage Temperature -65°C to 150°C Operating Junction Temperature -40°C to 125°C Soldering Temperature for 20 seconds 245°C MSL Rating 3

Cool-Power® Rev 1.3 vicorpower.com Page 4 of 37 2/2016 800 927.9474 PI354x-00 Absolute Maximum Ratings Notes: At 25°C ambient temperature. Stresses beyond these limits may cause permanent damage to the device. Operation at these conditions or conditions beyond those listed in the Electrical Specifications table is not guaranteed. All voltage nodes are referenced to PGND unless otherwise noted. Name Rating VIN -0.7 V to 75 V VS1 -0.7 to 75 V, -4 V for 5 ns VOUT -0.5 V to 25 V SGND 100 mA TRK -0.3 V to 5.5 V / 30 mA VDR, SYNCI, SYNCO, PWRGD, EN, LGH, COMP , EAO, EAIN, VDIFF, VSN, VSP , TESTx -0.3 V to 5.5 V / 5 mA

Cool-Power® Rev 1.3 vicorpower.com Page 5 of 37 02/2016 800 927.9474 PI354x-00 Functional Block Diagram VIN PGND SGND SYNCO PWRGD Q1 Q2 VCC EN SYNCI TRK EAO EAIN Power Control 2μF VDR ZVS Control Digital Parametric Trim COMP 100mV VSP+ - VSN LGH VDIFF VS1 VOUT TESTx Simplified Block Diagram

Cool-Power® Rev 1.3 vicorpower.com Page 6 of 37 2/2016 800 927.9474 PI354x-00 Package Pin-Out Pin Description Block 1: VIN; K9-10, J9-10, H9-10, G9-10 Block 2: VS1; K1-7 Block 3: PGND; H1-7, G1-7,F1-7, E2-8, D2-8, C2-5 Block 4: SGND; D9, C6-9, B4-9, A7

85 Pad LGA Sip (10 mm x 10mm)

(Top through view) Name Location I/O Description VS1 Block 2 (See Pkg Pin-Out dwg) I/O Switching node: and ZVS sense for power switches. VIN Block 1 I Input voltage: and sense for UVLO, OVLO and feed forward ramp. VDR 1E I/O Gate Driver VCC : Internally generated 5.1 V. May be used as reference or low power bias supply for up to 2 mA. Must be impedance limited by the user. SYNCI 1D I Synchronization input: Synchronize to the falling edge of external clock frequency. SYNCI is a high impedance digital input node and should always be connected to SGND when not in use. SYNCO 1C O Synchronization output: Outputs a high signal for ½ of the minimum period for synchronization of other regulators. TESTx 1B, 1A, 2B, 2A I/O Test Connections: Use only with factory guidance. Connect to SGND for proper operation. PWRGD 3A O Power Good: High impedance when regulator is operating and VOUT is in regulation. May also be used as “Parallel Good” – see applications section. EN 4A I Enable Input: Regulator enable control. Asserted high or left floating – regulator enabled; asserted low, regulator output disabled. TRK 5A I Soft-start and track input: An external capacitor may be connected between TRK pin and SGND to decrease the rate of rise during soft-start. LGH 6A I Lighting (LGH)/Constant Current (CC) Sense Input: Input with a 100 mV threshold. Used for lighting and constant current type applications.When not using the constant current mode (CC mode), the LGH pin should be connected to SGND. COMP 8A O Compensation Capacitor: Connect capacitor for control loop dominant pole. EAO 9A O Error amp output: External connection for additional compensation and current sharing. EAIN 10A I Error Amp Inverting Input: Connection for the feedback divider tap. VDIFF 10B O Independent Amplifier Output: If unused connect in unity gain with VSP connected to SGND. VSN 10C I Independent Amplifier Inverting Input VSP 10D I Independent Amplifier Non-Inverting Input VOUT 9E, 10E I/O Output voltage: and sense for power switches and feed-forward ramp. SGND Block 4 - Signal ground: Internal logic ground for EA, TRK, SYNCI, SYNCO communication returns. SGND and PGND are star connected within the regulator package. PGND Block 3 - Power ground: VIN and VOUT power returns.

Cool-Power® Rev 1.3 vicorpower.com Page 7 of 37 02/2016 800 927.9474 PI354x-00 PI354x-00 Common Electrical Characteristics Specifications apply for -40°C <TJ < 125°C, VIN = 48 V, EN = High, VVDR = 5.1 V +/- 2%, L1 = 340 nH [1] unless other conditions are noted. [1] All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI354x evaluation board with 2.5 x 4” dimensions and 4 layer, 2 oz copper. Refer to inductor pairing table within Application Description section for specific inductor manufacturer and value. [2] Regulator is assured to meet performance specifications by design, test correlation, characterization, and/or statistical process control. Output voltage is determined by an external feedback divider ratio. [3] Output current capability may be limited and other performance may vary from noted electrical characteristics when Vout is not set to nominal. [4] Refer to Output Ripple plots. [5] Refer to Load Current vs. Ambient Temperature curves. [6] Refer to Switching Frequency vs. Load current curves. Parameter Symbol Conditions Min Typ Max Unit Differential Amp Open Loop Gain 96 120 140 dB Small Signal Gain-bandwidth 5 7 12 MHz Offset -1 0.5 1 mV Common Mode Input Range -0.1 2.5 V Differential Mode Input Range 2 V Input Bias Current -1 1 µA Maximum VOUT IDIFF = -1 mA VVDR -0.2 V Minimum VOUT 20 mV Capacitive Load Range for Stability 0 50 pF Slew Rate Rising 11 V/µsec Slew Rate Falling 11 V/µsec Sink/Source Current -1 1 mA Current Source Function (LGH) Reference 95 100 105 mV Input Offset 0.5 mV Gain-Bandwidth Product 3 MHz Internal Feedback Capacitance 20 pF Gain Amp Gain 10 V/V Intermediate Reference 1 V Gain-Bandwidth Product 3 MHz Transconductance 1 mS Output Current Capability Sink current only 1 mA PGD PGD Rising Threshold VPG_HI% [2] 79 85 91 % VOUT_DC PGD Falling Threshold VPG_LO% [2] 77 83 89 % VOUT_DC PGD Output Low VPG_SAT Sink = 4 mA [2] 0.4 V PGD Sink Current IPG_SAT [2] 4 mA

Cool-Power® Rev 1.3 vicorpower.com Page 8 of 37 2/2016 800 927.9474 PI354x-00 PI3542-00 (2.5 VOUT) Electrical Characteristics Specifications apply for -40°C <TJ < 125°C, VIN = 48 V, VVDR = 5.1 V +/- 2%, L1 = 340 nH [1] unless other conditions are noted. [1] All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI354x evaluation board with 2.5 x 4” dimensions and 4 layer, 2 oz copper. Refer to inductor pairing table within Application Description section for specific inductor manufacturer and value. [2] Regulator is assured to meet performance specifications by design, test correlation, characterization, and/or statistical process control. Output voltage is determined by an external feedback divider ratio. [3] Output current capability may be limited and other performance may vary from noted electrical characteristics when Vout is not set to nominal. [4] Refer to Output Ripple plots. [5] Refer to Load Current vs. Ambient Temperature curves. [6] Refer to Switching Frequency vs. Load current curves. Parameter Symbol Conditions Min Typ Max Unit Input Specifications Input Voltage VIN_DC 36 48 60 V Input Current IIN_DC VIN = 48 V, TC = 25°C, IOUT = 10 A 0.597 A Input Current At Output Short (fault condition duty cycle) IIN_Short Short at terminals 3.1 - mA Input Quiescent Current IQ_VIN Disabled 1.27 mA Enabled (no load) 2.42 Input Voltage Slew Rate VIN_SR 1 V/µs Output Specifications EAIN Voltage Total Regulation VOUT_DC [2] 0.985 1.00 1.015 V Output Voltage Trim Range VOUT_DC [2][3] 2.2 2.5 3.0 V Line Regulation ∆VOUT(∆VIN) @ 25°C, 36 V <VIN <60 V 0.10 % Load Regulation ∆VOUT(∆IOUT) @ 25°C, 0.5 A <IOUT <10 A 0.10 % Output Voltage Ripple VOUT_AC IOUT = 10 A, COUT = 6 x 100 µF, 20 MHz BW [4] 47 mVp-p Output Current IOUT_DC [5] 0 10 A Current Limit IOUT_CL L1 = 340 nH ±1% - 12 - A Protection Input UVLO Start Threshold VUVLO_START 33.8 34.8 35.8 V Input UVLO Stop Hysteresis VUVLO_HYS 0.9 V Input UVLO Response Time 1.25 usec Input OVLO Stop Threshold VOVLO 62 64.3 66.2 V Input OVLO Start Hysteresis VOVLO_HYS 1.3 V Input OVLO Response Time tf 1.25 usec Output Overvoltage Protection VOVP Above set VOUT 20 % Overtemperature Fault Threshold TOTP 130 °C Ovetemperature Restart Hysteresis TOTP_HYS 30 °C Timing Switching Frequency fS [6] 48 VIN to 2.5 VOUT, 3 A out, L1 = 30 nH ±1% - 400 - kHz Fault Restart Delay tFR_DLY 30 ms Sync In (SYNCI) Synchronization Frequency Range ∆fSYNCI Relative to set switching frequency [3] 50 110 % SYNCI Threshold VSYNCI VVDR/2 V

Cool-Power® Rev 1.3 vicorpower.com Page 9 of 37 02/2016 800 927.9474 PI354x-00 PI3542-00 (2.5 VOUT) Electrical Characteristics Specifications apply for -40°C <TJ < 125°C, VIN = 48 V, VVDR = 5.1 V +/- 2%, L1 = 340 nH [1] unless other conditions are noted. Parameter Symbol Conditions Min Typ Max Unit Sync Out (SYNCO) SYNCO High VSYNCO_HI Source 1 mA VVDR –0.5 V SYNCO Low VSYNCO_LO Sink 1 mA 0.5 V SYNCO Rise Time tSYNCO_RT 20 pF load 10 ns SYNCO Fall Time tSYNCO_FT 20 pF load 10 ns Soft Start, Tracking and Error Amplifier TRK Active Range (Nominal) VTRK 0 1.08 V TRK Enable Threshold VTRK_OV 20 40 60 mV TRK to EAIN Offset VEIAN_OV 50 80 110 mV Charge Current (Soft – Start) ITRK -70 -50 -30 µA Discharge Current (Fault) ITRK_DIS VTRK = 0.5 V 10 mA Soft-Start Time tSS CTRK = 0 0.6 .94 1.6 mS Error Amplifier Trans-Conductance GMeao [2] 5.1 ms PSM Skip Threshold PSMSKIP [2] 0.8 V Error Amplifier Output Impedance ROUT [2] 1 MOhm Internal Compensation Capacitor Chf [2] 56 pf Internal Compensation Resistor Rzi [2] 5k Ohm Enable High Threshold VEN_HI 0.9 1 1.1 V Low Threshold VEN_LO 0.7 0.8 0.9 V Threshold Hysteresis VEN_HYS 100 200 300 mV Enable Pull-Up Voltage (floating, no faulted) VEN_PU 2 V Enable Pull-Down Voltage (floating, fault) VEN_PD 0 V Source Current IEN_SO -50 µA Sink Current IEN_SK 50 µA [1] All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI354x evaluation board with 2.5 x 4” dimensions and 4 layer, 2 oz copper. Refer to inductor pairing table within Application Description section for specific inductor manufacturer and value. [2] Regulator is assured to meet performance specifications by design, test correlation, characterization, and/or statistical process control. Output voltage is determined by an external feedback divider ratio. [3] Output current capability may be limited and other performance may vary from noted electrical characteristics when Vout is not set to nominal. [4] Refer to Output Ripple plots. [5] Refer to Load Current vs. Ambient Temperature curves. [6] Refer to Switching Frequency vs. Load current curves.

Cool-Power® Rev 1.3 vicorpower.com Page 10 of 37 2/2016 800 927.9474 PI354x-00 Efficiency at 25°C IOUT (A) Efficiency (%)

36 Vin

48 Vin

60 Vin

Figure 1 — Regulator Efficiency Figure 2 — Transient Response: 5 A to 10 A, at 1 A/µs. 48 V IN to 2.5 VOUT, COUT = 6 x 100 µF Ceramic Figure 4 — Output Ripple: 48 V IN, 2.5 VOUT at 10 A. VOUT = 20 mV/Div, 2.0 µs/Div; COUT = 6 x 100 µF Ceramic Figure 3 — Output Short Circuit @ V IN = 48 V PI3542-00 (2.5 VOUT) Electrical Characteristics Figure 6 — Output Ripple: 48 V IN, 2.5 VOUT at 5 A. VOUT = 20 mV/Div, 2.0 µs/Div; COUT = 6 x 100 µF Ceramic Switching Frequency vs. Load Current IOUT (A) Frequency (kHz) Figure 5 — Switching Frequency vs. Load Current

Cool-Power® Rev 1.3 vicorpower.com Page 11 of 37 02/2016 800 927.9474 PI354x-00 Load Current vs. Ambient Temperature, 0 LFM Ambient Temperature (°C) Output Load Current (A) Figure 7 — Load Current vs. Ambient Temperature, 0 LFM Load Current vs. Ambient Temperature, 200 LFM Ambient Temperature (°C) Output Load Current (A) Figure 8 — Load Current vs. Ambient Temperature, 200 LFM Load Current vs. Ambient Temperature, 400 LFM Ambient Temperature (°C) Output Load Current (A) Figure 9 — Load Current vs. Ambient Temperature, 400 LFM PI3542-00 (2.5 VOUT) Electrical Characteristics V(EAO) Volts Output Current DC Amps IOUT @ VIN = 36 V IOUT @ VIN = 48 V IOUT @ VIN = 60 V Output Current vs. Error Voltage V(EAO) 0 0.5 1 1.5 2 2.5 3 Figure 10 — Output Current vs. Error Voltage V(EAO) V(EAO) Volts DC Output Resistance Ohms - DCM req_OUT_DCM @ VIN = 36 V req_OUT_DCM @ VIN = 48 V req_OUT_DCM @ VIN = 60 V req_OUT_CrCM @ VIN = 60 V req_OUT_CrCM @ VIN = 36 V req_OUT_CrCM @ VIN = 48 V 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.1 1.2 1.3 1.4 1.5 0123 Output Equivalent Resistance vs. Error Voltage V(EAO) Figure 12 — Output Equivalent Resistance vs.Error Voltage V(EAO) V(EAO) Volts Modulator Gain Siemens gmod @ VIN = 36 V gmodT @ VIN = 48 V gmod @ VIN = 60 V Modulator Gain vs. Error Voltage (VEAO) 0123 Figure 11 — Modulator Gain vs. Error Voltage (VEAO)

Cool-Power® Rev 1.3 vicorpower.com Page 12 of 37 2/2016 800 927.9474 PI354x-00 PI3543-00 (3.3 VOUT) Electrical Characteristics Specifications apply for -40°C <TJ < 125°C, VIN = 48 V, VVDR = 5.1 V +/- 2%, L1 = 420 nH [1] unless other conditions are noted. [1] All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI354x evaluation board with 2.5 x 4” dimensions and 4 layer, 2 oz copper. Refer to inductor pairing table within Application Description section for specific inductor manufacturer and value. [2] Regulator is assured to meet performance specifications by design, test correlation, characterization, and/or statistical process control. Output voltage is determined by an external feedback divider ratio. [3] Output current capability may be limited and other performance may vary from noted electrical characteristics when Vout is not set to nominal. [4] Refer to Output Ripple plots. [5] Refer to Load Current vs. Ambient Temperature curves. [6] Refer to Switching Frequency vs. Load current curves. Parameter Symbol Conditions Min Typ Max Unit Input Specifications Input Voltage VIN_DC 36 48 60 V Input Current IIN_DC VIN = 48 V, TC = 25°C, IOUT = 10 A 0.762 A Input Current At Output Short (fault condition duty cycle) IIN_Short Short at terminals 3 - mA Input Quiescent Current IQ_VIN Disabled 1.265 mA Enabled (no load) 2.4 Input Voltage Slew Rate VIN_SR 1 V/µs Output Specifications EAIN Voltage Total Regulation VOUT_DC [2] 0.985 1.00 1.015 V Output Voltage Trim Range VOUT_DC [2][3] 2.6 3.3 3.6 V Line Regulation ∆VOUT(∆VIN) @ 25°C, 36 V <VIN <60 V 0.10 % Load Regulation ∆VOUT(∆IOUT) @ 25°C, 0.5 A <IOUT <10 A 0.10 % Output Voltage Ripple VOUT_AC IOUT = 10 A, COUT = 6 x 100 µF, 20 MHz BW [4] 62 mVp-p Output Current IOUT_DC [5] 0 10 A Current Limit IOUT_CL L1 = 420 nH ±1% - 11.5 - A Protection Input UVLO Start Threshold VUVLO_START 33.8 34.8 35.8 V Input UVLO Stop Hysteresis VUVLO_HYS 0.9 V Input UVLO Response Time 1.25 usec Input OVLO Stop Threshold VOVLO 62 64.3 66.2 V Input OVLO Start Hysteresis VOVLO_HYS 1.3 V Input OVLO Response Time tf 1.25 usec Output Overvoltage Protection VOVP Above set VOUT 20 % Overtemperature Fault Threshold TOTP 130 °C Ovetemperature Restart Hysteresis TOTP_HYS 30 °C Timing Switching Frequency fS [6] 48 VIN to 3.3 VOUT, 6 A out, L1 = 420 nH ±1% - 400 - kHz Fault Restart Delay tFR_DLY 30 ms Sync In (SYNCI) Synchronization Frequency Range ∆fSYNCI Relative to set switching frequency [3] 50 110 % SYNCI Threshold VSYNCI VVDR/2 V

Cool-Power® Rev 1.3 vicorpower.com Page 13 of 37 02/2016 800 927.9474 PI354x-00 PI3543-00 (3.3 VOUT) Electrical Characteristics Specifications apply for -40°C <TJ < 125°C, VIN = 48 V, VVDR = 5.1 V +/- 2%, L1 = 420 nH [1] unless other conditions are noted. Parameter Symbol Conditions Min Typ Max Unit Sync Out (SYNCO) SYNCO High VSYNCO_HI Source 1 mA VVDR –0.5 V SYNCO Low VSYNCO_LO Sink 1 mA 0.5 V SYNCO Rise Time tSYNCO_RT 20 pF load 10 ns SYNCO Fall Time tSYNCO_FT 20 pF load 10 ns Soft Start, Tracking and Error Amplifier TRK Active Range (Nominal) VTRK 0 1.08 V TRK Enable Threshold VTRK_OV 20 40 60 mV TRK to EAIN Offset VEIAN_OV 50 80 110 mV Charge Current (Soft – Start) ITRK -70 -50 -30 µA Discharge Current (Fault) ITRK_DIS VTRK = 0.5 V 10 mA Soft-Start Time tSS CTRK = 0 0.6 .94 1.6 mS Error Amplifier Trans-Conductance GMeao [2] 5.1 ms PSM Skip Threshold PSMSKIP [2] 0.8 V Error Amplifier Output Impedance ROUT [2] 1 MOhm Internal Compensation Capacitor Chf [2] 56 pf Internal Compensation Resistor Rzi [2] 6k Ohm Enable High Threshold VEN_HI 0.9 1 1.1 V Low Threshold VEN_LO 0.7 0.8 0.9 V Threshold Hysteresis VEN_HYS 100 200 300 mV Enable Pull-Up Voltage (floating, no fault) VEN_PU 2 V Enable Pull-Down Voltage (floating, faulted) VEN_PD 0 V Source Current IEN_SO -50 µA Sink Current IEN_SK 50 µA [1] All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI354x evaluation board with 2.5 x 4” dimensions and 4 layer, 2 oz copper. Refer to inductor pairing table within Application Description section for specific inductor manufacturer and value. [2] Regulator is assured to meet performance specifications by design, test correlation, characterization, and/or statistical process control. Output voltage is determined by an external feedback divider ratio. [3] Output current capability may be limited and other performance may vary from noted electrical characteristics when Vout is not set to nominal. [4] Refer to Output Ripple plots. [5] Refer to Load Current vs. Ambient Temperature curves. [6] Refer to Switching Frequency vs. Load current curves.

Cool-Power® Rev 1.3 vicorpower.com Page 14 of 37 2/2016 800 927.9474 PI354x-00 Efficiency at 25°C IOUT (A) Efficiency (%) Figure 13 — Regulator Efficiency Figure 14 — Transient Response: 5 A to 10 A, at 1 A/µs. 48 V IN to 3.3 VOUT, Figure 16 — Output Ripple: 48 V IN, 3.3 VOUT at 10 A. VOUT = 20 mV/Div, 2.0 µs/Div; COUT = 6 x 100 µF Ceramic Figure 15 — Output Short Circuit @ V IN = 48 V PI3543-00 (3.3 VOUT) Electrical Characteristics Figure 18 — Output Ripple: 48 V IN, 3.3 VOUT at 5 A. VOUT = 20 mV/Div, 2.0 µs/Div; COUT = 6 x 100 µF Ceramic Switching Frequency vs. Load Current IOUT (A) Frequency (kHz) Figure 17 — Switching Frequency vs. Load Current

Cool-Power® Rev 1.3 vicorpower.com Page 15 of 37 02/2016 800 927.9474 PI354x-00 Load Current vs. Ambient Temperature, 0 LFM Ambient Temperature (°C) Output Load Current (A) Figure 19 — Load Current vs. Ambient Temperature, 0 LFM Load Current vs. Ambient Temperature, 200 LFM Ambient Temperature (°C) Output Load Current (A) Figure 20 — Load Current vs. Ambient Temperature, 200 LFM Load Current vs. Ambient Temperature, 400 LFM Ambient Temperature (°C) Output Load Current (A) Figure 21 — Load Current vs. Ambient Temperature, 400 LFM PI3543-00 (3.3 VOUT) Electrical Characteristics V(EAO) Volts Output Current DC Amps IOUT @ VIN = 36 V IOUT @ VIN = 48 V IOUT @ VIN = 60 V Output Current vs. Error Voltage V(EAO) 01234 Figure 22 — Output Current vs. Error Voltage V(EAO) V(EAO) Volts DC Output Resistance Ohms - DCM req_OUT_DCM @ VIN = 36 V req_OUT_DCM @ VIN = 48 V req_OUT_DCM @ VIN = 60 V req_OUT_CrCM @ VIN = 60 V req_OUT_CrCM @ VIN = 36 V req_OUT_CrCM @ VIN = 48 V Output Equivalent Resistance vs. Error Voltage V(EAO) 100 120 0.5 1.5 2.5 3.5 01234 Figure 24 — Output Equivalent Resistance vs. Error Voltage V(EAO) V(EAO) Volts Modulator Gain Siemens gmod @ VIN = 36 V gmodT @ VIN = 48 V gmod @ VIN = 60 V Modulator Gain vs. Error Voltage (VEAO) 01234 Figure 23 — Modulator Gain vs. Error Voltage (VEAO)

Cool-Power® Rev 1.3 vicorpower.com Page 16 of 37 2/2016 800 927.9474 PI354x-00 PI3545-00 (5.0 VOUT) Electrical Characteristics Specifications apply for -40°C <TJ < 125°C, VIN = 48 V, VVDR = 5.1 V +/- 2%, L1 = 420 nH [1] unless other conditions are noted. [1] All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI354x evaluation board with 2.5 x 4” dimensions and 4 layer, 2 oz copper. Refer to inductor pairing table within Application Description section for specific inductor manufacturer and value. [2] Regulator is assured to meet performance specifications by design, test correlation, characterization, and/or statistical process control. Output voltage is determined by an external feedback divider ratio. [3] Output current capability may be limited and other performance may vary from noted electrical characteristics when Vout is not set to nominal. [4] Refer to Output Ripple plots. [5] Refer to Load Current vs. Ambient Temperature curves. [6] Refer to Switching Frequency vs. Load current curves. Parameter Symbol Conditions Min Typ Max Unit Input Specifications Input Voltage VIN_DC 36 48 60 V Input Current IIN_DC VIN = 48 V, TC = 25°C, IOUT = 10 A 1.126 A Input Current At Output Short (fault condition duty cycle) IIN_Short Short at terminals 3.2 - mA Input Quiescent Current IQ_VIN Disabled 1.26 mA Enabled (no load) 2.42 Input Voltage Slew Rate VIN_SR 1 V/µs Output Specifications EAIN Voltage Total Regulation VOUT_DC [2] 0.985 1.00 1.015 V Output Voltage Trim Range VOUT_DC [2][3] 4.0 5.0 5.5 V Line Regulation ∆VOUT(∆VIN) @ 25°C, 36 V <VIN <60 V 0.10 % Load Regulation ∆VOUT(∆IOUT) @ 25°C, 0.5 A <IOUT <10 A 0.10 % Output Voltage Ripple VOUT_AC IOUT = 10 A, COUT = 6 x 47 µF, 20 MHz BW [4] 62.4 mVp-p Output Current IOUT_DC [5] 0 10 A Current Limit IOUT_CL L1 = 420 nH ±1% - 12 - A Protection Input UVLO Start Threshold VUVLO_START 33.8 34.8 35.8 V Input UVLO Stop Hysteresis VUVLO_HYS 2.6 V Input UVLO Response Time 1.25 usec Input OVLO Stop Threshold VOVLO 62 64.3 66.2 V Input OVLO Start Hysteresis VOVLO_HYS 1.3 V Input OVLO Response Time tf 1.25 usec Output Overvoltage Protection VOVP Above set VOUT 20 % Overtemperature Fault Threshold TOTP 130 °C Ovetemperature Restart Hysteresis TOTP_HYS 30 °C Timing Switching Frequency fS [6] 48 VIN to 55 VOUT, 3 A out, L1 = 420 nH ±1% - 600 - kHz Fault Restart Delay tFR_DLY 30 ms Sync In (SYNCI) Synchronization Frequency Range ∆fSYNCI Relative to set switching frequency [3] 50 110 % SYNCI Threshold VSYNCI VVDR/2 V

Cool-Power® Rev 1.3 vicorpower.com Page 17 of 37 02/2016 800 927.9474 PI354x-00 PI3545-00 (5.0 VOUT) Electrical Characteristics Specifications apply for -40°C <TJ < 125°C, VIN = 48 V, VVDR = 5.1 V +/- 2%, L1 = 420 nH [1] unless other conditions are noted. Parameter Symbol Conditions Min Typ Max Unit Sync Out (SYNCO) SYNCO High VSYNCO_HI Source 1 mA VVDR –0.5 V SYNCO Low VSYNCO_LO Sink 1 mA 0.5 V SYNCO Rise Time tSYNCO_RT 20 pF load 10 ns SYNCO Fall Time tSYNCO_FT 20 pF load 10 ns Soft Start, Tracking and Error Amplifier TRK Active Range (Nominal) VTRK 0 1.08 V TRK Enable Threshold VTRK_OV 20 40 60 mV TRK to EAIN Offset VEIAN_OV 50 80 110 mV Charge Current (Soft – Start) ITRK -70 -50 -30 µA Discharge Current (Fault) ITRK_DIS VTRK = 0.5 V 10 mA Soft-Start Time tSS CTRK = 0 0.6 .94 1.6 mS Error Amplifier Trans-Conductance GMeao [2] 5.1 ms PSM Skip Threshold PSMSKIP [2] 0.8 V Error Amplifier Output Impedance ROUT [2] 1 MOhm Internal Compensation Capacitor Chf [2] 56 pf Internal Compensation Resistor Rzi [2] 6k Ohm Enable High Threshold VEN_HI 0.9 1 1.1 V Low Threshold VEN_LO 0.7 0.8 0.9 V Threshold Hysteresis VEN_HYS 100 200 300 mV Enable Pull-Up Voltage (floating, no fault) VEN_PU 2 V Enable Pull-Down Voltage (floating, faulted) VEN_PD 0 V Source Current IEN_SO -50 µA Sink Current IEN_SK 50 µA [1] All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI354x evaluation board with 2.5 x 4” dimensions and 4 layer, 2 oz copper. Refer to inductor pairing table within Application Description section for specific inductor manufacturer and value. [2] Regulator is assured to meet performance specifications by design, test correlation, characterization, and/or statistical process control. Output voltage is determined by an external feedback divider ratio. [3] Output current capability may be limited and other performance may vary from noted electrical characteristics when Vout is not set to nominal. [4] Refer to Output Ripple plots. [5] Refer to Load Current vs. Ambient Temperature curves. [6] Refer to Switching Frequency vs. Load current curves.

Cool-Power® Rev 1.3 vicorpower.com Page 18 of 37 2/2016 800 927.9474 PI354x-00 Efficiency at 25°C IOUT (A) Efficiency (%) Figure 25 — Regulator Efficiency Figure 26 — Transient Response: 5 A to 10 A, at 1 A/µs. 48 V IN to 5.0 VOUT COUT = 6 x 47 µF Ceramic Figure 28 — Output Ripple: 48 V IN, 5.0 VOUT at 10 A. VOUT = 20 mV/Div, 2.0 µs/Div; COUT = 6 x 47 µF Ceramic Figure 27 — Output Short Circuit @ V IN = 48 V PI3545-00 (5.0 VOUT) Electrical Characteristics Figure 30 — Output Ripple: 48 V IN, 5.0 VOUT at 5 A. VOUT = 20 mV/Div, 2.0 µs/Div; COUT = 6 x 47 µF Ceramic Switching Frequency vs. Load Current IOUT (A) Frequency (kHz) Figure 29 — Switching Frequency vs. Load Current

Cool-Power® Rev 1.3 vicorpower.com Page 19 of 37 02/2016 800 927.9474 PI354x-00 Load Current vs. Ambient Temperature, 0 LFM Ambient Temperature (°C) Output Load Current (A) Figure 31 — Load Current vs. Ambient Temperature, 0 LFM Load Current vs. Ambient Temperature, 200 LFM Ambient Temperature (°C) Output Load Current (A) Figure 32 — Load Current vs. Ambient Temperature, 200 LFM Load Current vs. Ambient Temperature, 400 LFM Ambient Temperature (°C) Output Load Current (A) Figure 33 — Load Current vs. Ambient Temperature, 400 LFM PI3545-00 (5.0 VOUT) Electrical Characteristics V(EAO) Volts Output Current DC Amps IOUT @ VIN = 36 V IOUT @ VIN = 48 V IOUT @ VIN = 60 V Output Current vs. Error Voltage V(EAO) 0 0.5 1 1.5 2 2.5 3 Figure 34 — Output Current vs. Error Voltage V(EAO) V(EAO) Volts DC Output Resistance Ohms - DCM req_OUT_DCM @ VIN = 36 V req_OUT_DCM @ VIN = 48 V req_OUT_DCM @ VIN = 60 V req_OUT_CrCM @ VIN = 60 V req_OUT_CrCM @ VIN = 36 V req_OUT_CrCM @ VIN = 48 V Output Equivalent Resistance vs. Error Voltage V(EAO) 0.5 1.5 2.5 3.5 4.5 0123 Figure 36 — Output Equivalent Resistance vs. Error Voltage V(EAO) V(EAO) Volts Modulator Gain Siemens gmod @ VIN = 36 V gmodT @ VIN = 48 V gmod @ VIN = 60 V Modulator Gain vs. Error Voltage (VEAO) 0123 Figure 35 — Modulator Gain vs. Error Voltage (VEAO)

Cool-Power® Rev 1.3 vicorpower.com Page 20 of 37 2/2016 800 927.9474 PI354x-00 PI3546-00 (12.0 VOUT) Electrical Characteristics Specifications apply for -40°C <TJ < 125°C, VIN = 48 V, VVDR = 5.1 V +/- 2%, L1 = 900 nH [1] unless other conditions are noted. [1] All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI354x evaluation board with 2.5 x 4” dimensions and 4 layer, 2 oz copper. Refer to inductor pairing table within Application Description section for specific inductor manufacturer and value. [2] Regulator is assured to meet performance specifications by design, test correlation, characterization, and/or statistical process control. Output voltage is determined by an external feedback divider ratio. [3] Output current capability may be limited and other performance may vary from noted electrical characteristics when Vout is not set to nominal. [4] Refer to Output Ripple plots. [5] Refer to Load Current vs. Ambient Temperature curves. [6] Refer to Switching Frequency vs. Load current curves. Parameter Symbol Conditions Min Typ Max Unit Input Specifications Input Voltage VIN_DC 36 48 60 V Input Current IIN_DC VIN = 48 V, TC = 25°C, IOUT = 9 A 2.33 A Input Current At Output Short (fault condition duty cycle) IIN_Short Short at terminals 3.3 - mA Input Quiescent Current IQ_VIN Disabled 1.26 mA Enabled (no load) 2.9 Input Voltage Slew Rate VIN_SR 1 V/µs Output Specifications EAIN Voltage Total Regulation VOUT_DC [2] 0.985 1.00 1.015 V Output Voltage Trim Range VOUT_DC [2][3] 6.5 12 14 V Line Regulation ∆VOUT(∆VIN) @ 25°C, 36 V <VIN <60 V 0.10 % Load Regulation ∆VOUT(∆IOUT) @ 25°C, 0.5 A <IOUT <9 A 0.10 % Output Voltage Ripple VOUT_AC IOUT = 9 A, COUT = 6 x 10 µF, 20 MHz BW [4] 114 mVp-p Output Current IOUT_DC [5] 0 9 A Current Limit IOUT_CL L1 = 900 nH ±1% - 10.5 - A Protection Input UVLO Start Threshold VUVLO_START 33.8 34.8 35.8 V Input UVLO Stop Hysteresis VUVLO_HYS 2.6 V Input UVLO Response Time 1.25 usec Input OVLO Stop Threshold VOVLO 62 64.3 66.2 V Input OVLO Start Hysteresis VOVLO_HYS 1.3 V Input OVLO Response Time tf 1.25 usec Output Overvoltage Protection VOVP Above set VOUT 20 % Overtemperature Fault Threshold TOTP 130 °C Ovetemperature Restart Hysteresis TOTP_HYS 30 °C Timing Switching Frequency fS [6] 48 VIN to 12 VOUT, 2 A out, L1 = 900 nH ±1% - 800 - kHz Fault Restart Delay tFR_DLY 30 ms Sync In (SYNCI) Synchronization Frequency Range ∆fSYNCI Relative to set switching frequency [3] 50 110 % SYNCI Threshold VSYNCI VVDR/2 V

Cool-Power® Rev 1.3 vicorpower.com Page 21 of 37 02/2016 800 927.9474 PI354x-00 PI3546-00 (12.0 VOUT) Electrical Characteristics Specifications apply for -40°C <TJ < 125°C, VIN = 48 V, VVDR = 5.1 V +/- 2%, L1 = 900 nH [1] unless other conditions are noted. Parameter Symbol Conditions Min Typ Max Unit Sync Out (SYNCO) SYNCO High VSYNCO_HI Source 1 mA VVDR –0.5 V SYNCO Low VSYNCO_LO Sink 1 mA 0.5 V SYNCO Rise Time tSYNCO_RT 20 pF load 10 ns SYNCO Fall Time tSYNCO_FT 20 pF load 10 ns Soft Start, Tracking and Error Amplifier TRK Active Range (Nominal) VTRK 0 1.08 V TRK Enable Threshold VTRK_OV 20 40 60 mV TRK to EAIN Offset VEIAN_OV 50 80 110 mV Charge Current (Soft – Start) ITRK -70 -50 -30 µA Discharge Current (Fault) ITRK_DIS VTRK = 0.5 V 10 mA Soft-Start Time tSS CTRK = 0 0.6 .94 1.6 mS Error Amplifier Trans-Conductance GMeao [2] 7.6 ms PSM Skip Threshold PSMSKIP [2] 0.8 V Error Amplifier Output Impedance ROUT [2] 1 MOhm Internal Compensation Capacitor Chf [2] 56 pf Internal Compensation Resistor Rzi [2] 5k Ohm Enable High Threshold VEN_HI 0.9 1 1.1 V Low Threshold VEN_LO 0.7 0.8 0.9 V Threshold Hysteresis VEN_HYS 100 200 300 mV Enable Pull-Up Voltage (floating, no fault) VEN_PU 2 V Enable Pull-Down Voltage (floating, faulted) VEN_PD 0 V Source Current IEN_SO -50 µA Sink Current IEN_SK 50 µA [1] All parameters reflect regulator and inductor system performance. Measurements were made using a standard PI354x evaluation board with 2.5 x 4” dimensions and 4 layer, 2 oz copper. Refer to inductor pairing table within Application Description section for specific inductor manufacturer and value. [2] Regulator is assured to meet performance specifications by design, test correlation, characterization, and/or statistical process control. Output voltage is determined by an external feedback divider ratio. [3] Output current capability may be limited and other performance may vary from noted electrical characteristics when Vout is not set to nominal. [4] Refer to Output Ripple plots. [5] Refer to Load Current vs. Ambient Temperature curves. [6] Refer to Switching Frequency vs. Load current curves.

Cool-Power® Rev 1.3 vicorpower.com Page 22 of 37 2/2016 800 927.9474 PI354x-00 Efficiency at 25°C IOUT (A) Efficiency (%) Figure 37 — Regulator Efficiency Figure 38 — Transient Response: 5 A to 10 A, at 1 A/µs. 48 V IN to

12.0 VOUT, COUT = 6 x 10 µF Ceramic

Figure 40 — Output Ripple: 48 V IN, 12.0 VOUT at 9 A. VOUT = 50 mV/Div, 2.0 µs/Div; COUT = 6 x 10 µF Ceramic Figure 39 — Output Short Circuit @ V IN = 48 V PI3546-00 (12.0 VOUT) Electrical Characteristics Figure 42 — Output Ripple: 48 V IN, 12.0 VOUT at 4.5 A. VOUT = 10 mV/Div, 2.0 µs/Div; COUT = 6 x 10 µF Ceramic Switching Frequency vs. Load Current IOUT (A) Frequency (kHz) Figure 41 — Switching Frequency vs. Load Current

Cool-Power® Rev 1.3 vicorpower.com Page 23 of 37 02/2016 800 927.9474 PI354x-00 Load Current vs. Ambient Temperature, 0 LFM Ambient Temperature (°C) Output Load Current (A) Figure 43 — Load Current vs. Ambient Temperature, 0 LFM Load Current vs. Ambient Temperature, 200 LFM Ambient Temperature (°C) Output Load Current (A) Figure 44 — Load Current vs. Ambient Temperature, 200 LFM Load Current vs. Ambient Temperature, 400 LFM Ambient Temperature (°C) Output Load Current (A) Figure 45 — Load Current vs. Ambient Temperature, 400 LFM PI3546-00 (12.0 VOUT) Electrical Characteristics V(EAO) Volts Output Current DC Amps IOUT @ VIN = 36 V IOUT @ VIN = 48 V IOUT @ VIN = 60 V Output Current vs. Error Voltage V(EAO) 01234 Figure 46 — Output Current vs. Error Voltage V(EAO) V(EAO) Volts DC Output Resistance Ohms - DCM req_OUT_DCM @ VIN = 36 V req_OUT_DCM @ VIN = 48 V req_OUT_DCM @ VIN = 60 V req_OUT_CrCM @ VIN = 60 V req_OUT_CrCM @ VIN = 36 V req_OUT_CrCM @ VIN = 48 V Output Equivalent Resistance vs. Error Voltage V(EAO) 01234 Figure 48 — Output Equivalent Resistance vs. Error Voltage V(EAO V(EAO) Volts Modulator Gain Siemens gmod @ VIN = 36 V gmodT @ VIN = 48 V gmod @ VIN = 60 V Modulator Gain vs. Error Voltage (VEAO) 01234 Figure 47 — Modulator Gain vs. Error Voltage (VEAO)

Cool-Power® Rev 1.3 vicorpower.com Page 24 of 37 2/2016 800 927.9474 PI354x-00 Functional Description The PI354x-00 is a family of highly integrated ZVS-Buck regulators. The PI354x-00 has an output voltage that can be set within a prescribed range shown in Table 1. Performance and maximum output current are characterized with a specific external power inductor (see Table 2). For basic operation, Figure 49 shows the connections and components required. No additional design or settings are required. ENABLE (EN) EN is the enable pin of the converter. The EN Pin is referenced to SGND and permits the user to turn the regulator on or off. The EN default polarity is a positive logic assertion. If the EN pin is left floating or asserted high, the converter output is enabled. Pulling EN pin below 0.8 Vdc with respect to SGND will disable the regulator output. Remote Sensing If remote sensing is required, the PI354x-00 product family is equipped with an undedicated differential amplifier. This amplifier can allow full differential remote sense by configuring it as a differential follower and connecting the VDIFF pin to the EAIN pin. Switching Frequency Synchronization The SYNCI input allows the user to synchronize the controller switching frequency by an external clock referenced to SGND. The external clock can synchronize the unit between 50% and 110% of the preset switching frequency (fS). The PI354x-00 syncs to the falling edge of the applied clock, providing 180 degrees of phase shift with respect to SYNCO. This allows for the interleaved paralleling of two PI354x-00 devices. The SYNCI pin should be connected to SGND through a zero Ohm resistor when not in use and should never be left floating. When using the internal oscillator, the SYNCO pin provides a 5 V clock that can be used to sync other regulators. Therefore, one PI354x-00 can act as the lead regulator and have additional PI354x-00s running in parallel and synchronized. Soft-Start The PI354x-00 includes an internal soft-start capacitor to control the rate of rise of the output voltage. See the Electrical Characteristics Section for the default value. Connecting an external capacitor from the TRK pin to SGND will increase the start-up ramp period. See, “Soft Start Adjustment and Track,” in the Applications Description section for more details. Output Voltage Selection The PI354x-00 output voltage can be selected by connecting a resistor from EAIN pin to SGND and a resistor from Vout to the EAIN pin as shown in Figure 49. Table 1 defines the allowable operational voltage ranges for the PI354x-00 family. Output Current Limit Protection PI354x-00 has two methods implemented to protect from output short or over current condition. Slow Current Limit protection: prevents the output from sourcing current higher than the regulator’s maximum rated current. If the output current exceeds the Current Limit OUT_CL) for 1024 μs, a slow current limit fault is initiated and the regulator is shutdown which eliminates output current flow. After Fault Restart Delay (t FR_DLY), a soft-start cycle is initiated. This restart cycle will be repeated indefinitely until the excessive load is removed. Fast Current Limit protection: PI354x-00 monitors the regulator inductor current pulse-by-pulse to prevent the output from supplying very high current due to sudden low impedance short. If the regulator senses a high inductor current pulse, it will initiate a fault and stop switching until Fault Restart Delay ends and then initiate a soft-start cycle. Input Undervoltage Lockout If V IN falls below the input Under Voltage Lockout (UVLO) threshold, but remains high enough to power the internal bias supply, the PI354x-00 will complete the current cycle and stop switching. The system will soft start once the input voltage is reestablished and after the Fault Restart Delay. Input Overvoltage Lockout If V IN exceeds the input Over Voltage Lockout (OVLO) threshold (VOVLO), while the controller is running, the PI354x-00 will complete the current cycle and stop switching. The system will soft start once the input voltage is reestablished and after the Fault Restart Delay. Figure 49 — ZVS-Buck with required components Vin Vout Cin Cout VOUT VS1 LGH TRK EAIN EAO COMP VSN VSP VDIFF PI354X EN VIN SYNCI PGND SYNCO PWRGD TESTx VDR SGND Table 1 — PI354x-00 family output voltage ranges Device Output Voltage Nom. Range PI3542-00-LGIZ 2.5 V 2.2 V to 3.0 V PI3543-00-LGIZ 3.3 V 2.6 V to 3.6 V PI3545-00-LGIZ 5.0 V 4.0 V to 5.5 V PI3546-00-LGIZ 12 V 6.5 V to 14.0 V

Cool-Power® Rev 1.3 vicorpower.com Page 32 of 37 2/2016 800 927.9474 PI354x-00 VDR Bias Regulator The VDR internal bias regulator is a ZVS switching regulator that resides internal to the PI354x-00 product family. It is intended strictly for use to power the internal controller and driver circuitry. The power capability of this regulator is sized only for the PI354x-00, with adequate reserve for the application it was intended for. It may be used for as a pull- up source for open collector applications and for other very low power use with the following restrictions: 1. No direct connection is allowed. Any noise source that can disturb the VDR voltage can also affect the internal controller operation. 2. All loads must be locally de-coupled using a 0.1 μF ceramic capacitor. This capacitor must be connected to the VDR output through a series resistor no smaller than 1 k. which forms a loss pass filter and limits the total current to 5 mA. System Design Considerations 1. Inductive loads- As with all power electronic applications, consideration must be given to driving inductive loads that may be exposed to a fault in the system which could result in consequences beyond the scope of the power supply primary protection mechanisms. An inductive load could be a filter, fan motor or even excessively long cables. Consider an instantaneous short circuit through an un-damped inductance that occurs when the output capacitors are already at an initial condition of fully charged. The only thing that limits the current is the inductance of the short circuit and any series resistance. Even if the power supply is off at the time of the short circuit, the current could ramp up in the external inductor and store considerable energy. The release of this energy will result in considerable ringing, with the possibility of ringing nodes connected to the output voltage below ground. The system designer should plan for this by considering the use of other external circuit protection such as load switches, fuses, and transient voltage protectors. The inductive filters should be critically damped to avoid excessive ringing or damaging voltages. Adding a high current Schottky diode from the output voltage to PGND close to the PI354x-00 is recommended for these applications. 2. Low voltage operation – there is no isolation from an SELV (Safety-Extra-Low-Voltage) power system. Powering low voltage loads from input voltages as high as 60 V may require additional consideration to protect low voltage circuits from excessive voltage in the event of a short circuit from input to output. A fast TVS (transient voltage suppressor) gating an external load switch is an example of such protection. 3. Use of Lighting Mode (LGH) as a battery charger is certainly very feasible. It is fashionable to design these chargers such that the battery is always connected to it. Since the Buck topology is not isolated, shorting the input terminals or capacitors of an unpowered regulator/charger could allow damaging current flow through the body diode of the high side MOSFET that would be unprotected by a conventional input fuse. It is recommended to connect the PI354x-00 family to the battery using an active ORing device if LGH mode is used as a constant current battery charger. The same should be considered for super-capacitor applications as well.

Cool-Power® Rev 1.3 vicorpower.com Page 35 of 37 02/2016 800 927.9474 PI354x-00 Package Drawings PACKAGE BOTTOM VIEW PACKAGE TOP VIEW PACKAGE SIDE VIEW DETAIL A DETAIL B NOTES ‘e’ REPRESENTS THE BASIC TERMINAL PITCH. SPECIFIES THE TRUE GEOMETRIC POSITION OF THE TERMINAL AXIS. DIMENSION ‘ b’ APPL IES TO M ETAL LIZED PAD OPENING . DIM ENSIO N ‘A ’ INCL UDE S P ACKAG E W ARPA GE. EXPOSED METALLIZED PADS ARE CU PADS WI TH SURFACE FINISH PROTECTIO N. A LL DIME NSIONS IN M ILL IM ET ERS . D E PIN 1 INDEX PAD OPENING b L PIN 1 INDEXD1 e SEE NOTES SEE NOTES DETAIL A MOLD CAP SUBSTRATE A SEA TING PLANE PAD OPENING SOLDER MAS K B A aaa C C aaa C bbb C/ ddd CM BA Ceee M ddd CM BA Ceee M b L e SEE NOTES DIMEN SIONS

10.00 BSC

9.00 BSC

1.00 BSC

2.63 0.04 2.59 0.60 0.60 0.275 0.10 0.10 0.08 0.10 0.08 SYMBOL A b L D E e aaa bbb ccc ddd eee NOM 2.56 0.55 0.55 0.225 MIN 2.49 0.50 0.50 0.175 DATUM A DATUM B DETAIL B

Cool-Power® Rev 1.3 vicorpower.com Page 36 of 37 2/2016 800 927.9474 PI354x-00

Revision History

Revision Date Description Page Number(s) 1.0 - 1.1 05/2015 Released Engineering format/style n/a 1.2 10/12/15 Reformatted in new template n/a 1.3 02/19/2016 Updated PCB Footprint 34

Cool-Power® Rev 1.3 vicorpower.com Page 37 of 37 02/2016 800 927.9474 PI354x-00 Vicor’s comprehensive line of power solutions includes high density AC-DC and DC-DC modules and accessory components, fully configurable AC-DC and DC-DC power supplies, and complete custom power systems. Information furnished by Vicor is believed to be accurate and reliable. However, no responsibility is assumed by Vicor for its use. Vicor makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication. Vicor reserves the right to make changes to any products, specifications, and product descriptions at any time without notice. Information published by Vicor has been checked and is believed to be accurate at the time it was printed; however, Vicor assumes no responsibility for inaccuracies. Testing and other quality controls are used to the extent Vicor deems necessary to support Vicor’s product warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. Specifications are subject to change without notice. Vicor’s Standard Terms and Conditions All sales are subject to Vicor’s Standard Terms and Conditions of Sale, which are available on Vicor’s webpage or upon request. Product Warranty In Vicor’s standard terms and conditions of sale, Vicor warrants that its products are free from non-conformity to its Standard Specifications (the “Express Limited Warranty”). This warranty is extended only to the original Buyer for the period expiring two (2) years after the date of shipment and is not transferable. UNLESS OTHERWISE EXPRESSLY STATED IN A WRITTEN SALES AGREEMENT SIGNED BY A DULY AUTHORIZED VICOR SIGNATORY, VICOR DISCLAIMS ALL REPRESENTATIONS, LIABILITIES, AND WARRANTIES OF ANY KIND (WHETHER ARISING BY IMPLICATION OR BY OPERATION OF LAW) WITH RESPECT TO THE PRODUCTS, INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OR REPRESENTATIONS AS TO MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, INFRINGEMENT OF ANY PATENT, COPYRIGHT, OR OTHER INTELLECTUAL PROPERTY RIGHT, OR ANY OTHER MATTER. This warranty does not extend to products subjected to misuse, accident, or improper application, maintenance, or storage. Vicor shall not be liable for collateral or consequential damage. Vicor disclaims any and all liability arising out of the application or use of any product or circuit and assumes no liability for applications assistance or buyer product design. Buyers are responsible for their products and applications using Vicor products and components. Prior to using or distributing any products that include Vicor components, buyers should provide adequate design, testing and operating safeguards. Vicor will repair or replace defective products in accordance with its own best judgment. For service under this warranty, the buyer must contact Vicor to obtain a Return Material Authorization (RMA) number and shipping instructions. Products returned without prior authorization will be returned to the buyer. The buyer will pay all charges incurred in returning the product to the factory. Vicor will pay all reshipment charges if the product was defective within the terms of this warranty. Life Support Policy VICOR’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF THE CHIEF EXECUTIVE OFFICER AND GENERAL COUNSEL OF VICOR CORPORATION. As used herein, life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b) support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to the user. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness. Per Vicor Terms and Conditions of Sale, the user of Vicor products and components in life support applications assumes all risks of such use and indemnifies Vicor against all liability and damages. Intellectual Property Notice Vicor and its subsidiaries own Intellectual Property (including issued U.S. and Foreign Patents and pending patent applications) relating to the products described in this data sheet. No license, whether express, implied, or arising by estoppel or otherwise, to any intellectual property rights is granted by this document. Interested parties should contact Vicor's Intellectual Property Department. The products described on this data sheet are protected by the following U.S. Patents Numbers: RE 40,072 Vicor Corporation

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