LTM4614IV

LTM4614 LINER | Alldatasheet

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FEATURES

APPLICATIONS

DESCRIPTION

µModule Regulator The L TM®4614 is a complete 4A dual output switching mode DC/DC power supply. Included in the package are the switching controllers, power FETs, inductors and all support components. The dual 4A DC/DC converters operate over an input voltage range of 2.375V to 5.5V. The L TM4614 supports output voltages ranging from 0.8V to 5V. The regulator output voltages are set by a single resistor for each output. Only bulk input and output ca- pacitors are needed to complete the design. The low profi le package (2.82mm) enables utilization of unused space on the bottom of PC boards for high density point of load regulation. Additional features include overvoltage protection, foldback overcurrent protection, thermal shutdown and programmable soft-start. The power module is offered in a space saving and thermally enhanced 15mm × 15mm × 2.82mm LGA package. The L TM4614 is Pb-free and RoHS compliant. Different Combinations of Input and Output Voltages NUMBER OF INPUTS NUMBER OF OUTPUTS I OUT(MAX) 2 2 4A, 4A 2 (Current Share, Ex. 3.3V and 5V) 18 A 1 2 4A, 4A 1 1 8A, see L TM4608A n Telecom and Networking Equipment n FPGA Power n SERDES and Other Low Noise Applications L, L T , L TC, L TM, μModule, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 5481178, 6580258, 6304066, 6127815, 6498466, 6611131, 6724174. n Dual 4A Output Power Supply n Input Voltage Range: 2.375V to 5.5V n 4A DC Typical, 5A Peak Output Current Each n 0.8V Up to 5V Output Each, Parallelable n ± 2% Total DC Output Error (0°C ≤ TJ ≤ 125°C) n Output Voltage T racking n Up to 95% Effi ciency n Programmable Soft-Start n Short-Circuit and Overtemperature Protection n Power Good Indicators n Small and Very Low Profi le Package: 15mm × 15mm × 2.82mm Effi ciency vs Output Current Dual Output 4A DC/DC μModule® Regulator

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100μF 100μF10μF 10μF VOUT1 1.2V/4A VOUT2 1.5V/4A 5.76k 10k VIN1 3.3V TO 5V VIN2 3.3V TO 5V LOAD CURRENT (A) EFFICIENCY (%)

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VIN = 3.3V VOUT 1.5V VOUT 1.2V

PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS COMP1, COMP2, RUN/SS1, RUN/SS2 IN Internal Operating Temperature Range (Note 1) LGA PACKAGE 144-LEAD (15mm s 15mm s 2.8mm) TOP VIEW 12345678 1 0 91 1 1 2 L K J H G F E D C B M A TJMAX = 125°C, θJC-BOT = 2-3°C/W , θJA = 15°C/W , θJC-TOP = 25°C/W , Weight = 1.61g

ELECTRICAL CHARACTERISTICS

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN(DC) Input DC Voltage l 2.375 5.5 V VOUT(DC) Output Voltage C IN = 22μF , COUT = 100μF , RFB = 5.76k V IN = 2.375V to 5.5V , IOUT = 0A to 4A (Note 5) 0°C ≤ T J ≤ 125°C l 1.460 1.45 1.49 1.49 1.508 1.512 V V VIN(UVLO) Undervoltage Lockout Threshold I OUT = 0A 1.6 2 2.3 V IINRUSH(VIN) Input Inrush Current at Start-Up I OUT = 0A, CIN = 22μF , COUT = 100μF , VOUT = 1.5V V IN = 5.5V 0.35 A IQ(VIN) Input Supply Bias Current V IN = 2.375V , VOUT = 1.5V , Switching Continuous VIN = 5.5V , VOUT = 1.5V , Switching Continuous Shutdown, RUN = 0, VIN = 5V 71 2 mA mA μA IS(VIN) Input Supply Current V IN = 2.375V , VOUT = 1.5V , IOUT = 4A VIN = 5.5V , VOUT = 1.5V , IOUT = 4A 3.15 1.35 A A The l denotes the specifi cations which apply over the full internal operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = 5V unless otherwise noted. Refer to Figure 1. Specifi ed as each channel (Note 6). LEAD FREE FINISH TRAY PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE L TM4614EV#PBF L TM4614EV#PBF L TM4614V 144-Lead (15mm × 15mm × 2.8mm) LGA –40°C to 125°C L TM4614IV#PBF L TM4614IV#PBF L TM4614V 144-Lead (15mm × 15mm × 2.8mm) LGA –40°C to 125°C Consult L TC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container . For more information on lead free part marking, go to: http://www.linear .com/leadfree/ This product is only offered in trays. For more information go to: http://www.linear .com/packaging/ ORDER INFORMATION (See Pin Functions, Pin Confi guration Table)

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS IOUT(DC) Output Continuous Current Range V IN = 3.3V , VOUT = 1.5V (Note 5) 0 4 A ΔVOUT(LINE) VOUT ΔVOUT(LOAD) VOUT Load Regulation Accuracy V OUT = 1.5V , 0A to 4A (Note 5), VIN = 2.375V to 5.5V 0°C ≤ T J ≤ 125°C l 0.7 1.2 1.25 1.5 V OUT(AC) Output Ripple Voltage I OUT = 0A, COUT = 100μF (X5R) V IN = 5V , VOUT = 1.5V 12 mV P-P fs Output Ripple Voltage Frequency I OUT = 4A, VIN = 5V , VOUT = 1.5V 1.25 MHz ΔVOUT(START) Turn-On Overshoot C OUT = 100μF , VOUT = 1.5V , RUN/SS = 10nF , IOUT = 0A V IN = 3.3V V IN = 5V mV mV tSTART Turn-On Time C OUT = 100μF , VOUT = 1.5V , IOUT = 1A Resistive Load, TRACK = VIN and RUN/SS = Float V IN = 5V 0.5 ms ΔVOUT(LS) Peak Deviation for Dynamic Load Load: 0% to 50% to 0% of Full Load, COUT = 100μF , VIN = 5V , VOUT = 1.5V 25 mV tSETTLE Settling Time for Dynamic Load Step Load: 0% to 50% to 0% of Full Load, VIN = 5V , VOUT = 1.5V 10 μs IOUT(PK) Output Current Limit C OUT = 100μF V IN = 5V , VOUT = 1.5V 8 A VFB Voltage at FB Pin I OUT = 0A, VOUT = 1.5V l 0.792 0.788 0.8 0.8 0.808 0.810 V V IFB 0.2 μA VRUN RUN Pin On/Off Threshold 0.6 0.75 0.9 V ITRACK TRACK Pin Current 0.2 μA VTRACK(OFFSET) Offset Voltage TRACK = 0.4V 30 mV VTRACK(RANGE) T racking Input Range 0 0.8 V RFBHI Resistor Between VOUT and FB Pins 4.96 4.99 5.025 kΩ ΔVPGOOD PGOOD Range ±7.5 % RPGOOD PGOOD Resistance Open-Drain Pull-Down 90 150 Ω ELECTRICAL CHARACTERISTICS The l denotes the specifi cations which apply over the full internal operating temperature range, otherwise specifi cations are at TA = 25°C. VIN = 5V unless otherwise noted. Refer to Figure 1. Specifi ed as each channel (Note 6). Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The L TM4614E is guaranteed to meet performance specifi cations over the 0°C to 125°C internal operating temperature range. Specifi cations over the –40°C to 125°C internal operating temperature range are assured by design, characterization and correlation with statistical process controls. The L TM4614I is guaranteed to meet specifi cations over the full internal operating temperature range. Note that the maximum ambient temperature is determined by specifi c operating conditions in conjunction with board layout, the rated package thermal resistance and other environmental factors. Note 3: See Application Note 100. Note 4: The IC has overtemperature protection that is intended to protect the device during momentary overload conditions. Junction temperatures will exceed 125°C when overtemperature is activated. Continuous overtemperature activation can impair long-term reliability. Note 5: See output current derating curves for different V IN, VOUT and TA. Note 6: T wo channels are tested separately and the specifi ed test conditions are applied to each channel.

TYPICAL PERFORMANCE CHARACTERISTICS Effi ciency vs Output Current VIN = 2.5V Effi ciency vs Output Current VIN = 3.3V Effi ciency vs Output Current VIN = 5V Minimum Input Voltage at 4A Load Load Transient Response Load Transient Response Load Transient Response Load Transient ResponseLoad Transient Response OUTPUT CURRENT (A) 100

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EFFICIENCY (%) VOUT = 1.8V VOUT = 1.5V VOUT = 1.2V VOUT = 0.8V OUTPUT CURRENT (A) 100

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EFFICIENCY (%) VOUT = 2.5V VOUT = 1.8V VOUT = 1.5V VOUT = 1.2V VOUT = 0.8V OUTPUT CURRENT (A) EFFICIENCY (%) 12 34

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VOUT = 3.3V VOUT = 2.5V VOUT = 1.8V VOUT = 1.5V VOUT = 1.2V VOUT = 0.8V VIN (V) VOUT (V) 0.5 1.5 2.0 2.5 3.5 0.5 2.5 3.5

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1.0 3.0 2 4.5 5.551 1.5 34 VOUT = 3.3V VOUT = 2.5V VOUT = 1.8V VOUT = 1.5V VOUT = 1.2V VOUT = 0.8V ILOAD 2A/DIV VOUT 20mV/DIV VIN = 5V VOUT = 1.2V COUT = 100μF, 6.3V CERAMICS 20μs/DIV

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VIN = 5V VOUT = 1.5V COUT = 100μF, 6.3V CERAMICS 20μs/DIV

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VIN = 5V VOUT = 1.8V COUT = 100μF, 6.3V CERAMICS 20μs/DIV

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VIN = 5V VOUT = 2.5V COUT = 100μF, 6.3V CERAMICS 20μs/DIV

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VIN = 5V VOUT = 3.3V COUT = 100μF, 6.3V CERAMICS 20μs/DIV

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TYPICAL PERFORMANCE CHARACTERISTICS Start-Up Start-Up VFB vs Temperature Current Limit Foldback Short-Circuit Protection 1.5V Short, No Load TEMPERATURE (°C) –50

794 VFB (mV)

–25 50 0 25 125 10075

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OUTPUT CURRENT (A) VOUT (V) 0.6 0.8 1.0 6 8

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0.4 0.2 45 7 1.2 1.4 1.6 VIN = 5V VIN = 3.3V VIN = 2.5V VOUT = 1.5V VOUT 0.5V/DIV IIN 4A/DIV 20μs/DIV

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1.5V Short, 4A Load VOUT 0.5V/DIV IIN 1A/DIV 100μs/DIV

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VIN = 5V VOUT = 2.5V COUT = 100μF NO LOAD (0.01μF SOFT-START CAPACITOR) 200μs/DIV

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VIN = 5V VOUT = 2.5V COUT = 100μF 4A LOAD (0.01μF SOFT-START CAPACITOR) 200μs/DIV

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VIN1, VIN2 (J1-J6, K1-K6); (C1-C6, D1-D6): Power Input Pins. Apply input voltage between these pins and GND pins. Recommend placing input decoupling capacitance directly between V IN pins and GND pins. VOUT1, VOUT2 (K9-K12, J9-J12, L9-L12, M9-M12); (C9-C12, D9-D12, E9-E12, F9-F12): Power Output Pins. Apply out- put load between these pins and GND pins. Recommend placing output decoupling capacitance directly between these pins and GND pins. Review Table 4. GND1, GND2, (G1-G12, H1, H7-H12, J7-J8, K7-K8, L1, L7-L8, M1-M8); (A1-A12, B1, B7-B12, C7-C8, D7-D8, E1, E7-E8, F1-F8): Power Ground Pins for Both Input and Output Returns. TRACK1, TRACK2 (L3, E3): Output Voltage T racking Pins. When the module is confi gured as a master output, then a soft-start capacitor is placed on the RUN/SS pin to ground to control the master ramp rate, or an external ramp can be applied to the master regulator’s track pin to control it. Slave operation is performed by putting a resistor divider from the master output to the ground, and connecting the center point of the divider to this pin on the slave regulator . If tracking is not desired, then connect the TRACK pin to V IN. Load current must be present for tracking. See Ap- plications Information section. FB1, FB2 (L6, E6): The Negative Input of the Switching Regulators’ Error Amplifi er . Internally, these pins are con- nected to VOUT with a 4.99k precision resistor. Different output voltages can be programmed with an additional resistor between the FB and GND pins. T wo power modules can current share when this pin is connected in parallel with the adjacent module’s FB pin. See Applications In- formation section. COMP1, COMP2 (L5, E5): Current Control Threshold and Error Amplifi er Compensation Point. The current comparator threshold increases with this control voltage. T wo power modules can current share when this pin is connected in parallel with the adjacent module’s COMP pin. Each channel has been internally compensated. See Applications Information section. PGOOD1, PGOOD2 (L4, E4): Output Voltage Power Good Indicator . Open-drain logic output that is pulled to ground when the output voltage is not within ±7.5% of the regulation point. RUN/SS1, RUN/SS2 (L2, E2): Run Control and Soft-Start Pin. A voltage above 0.8V will turn on the module, and below 0.5V will turn off the module. This pin has a 1M resistor to V IN and a 1000pF capacitor to GND. See Applications Information section for soft-start information. SW1, SW2 (H2-H6, B2-B6): The switching node of the circuit is used for testing purposes. This can be connected to copper on the board for improved thermal performance.

Figure 1. Simplifi ed L TM4614 Block Diagram of Each Switching Regulator Channel DECOUPLING REQUIREMENTSTA = 25°C. Use Figure 1 confi guration for each channel.

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L TM4614 POWER MODULE DESCRIPTION The L TM4614 is a standalone dual nonisolated switching mode DC/DC power supply. It can deliver up to 4A of DC output current for each channel with few external input and output capacitors. This module provides two precisely regulated output voltages programmable via one external resistor for each channel from 0.8V DC to 5V DC over a 2.375V to 5.5V input voltage. The typical application schematic is shown in Figure 12. The L TM4614 has two integrated constant frequency cur- rent mode regulators, with built-in power MOSFETs with fast switching speed. The typical switching frequency is 1.25MHz. With current mode control and internal feedback loop compensation, these switching regulators have suf- fi cient stability margins and good transient performance under a wide range of operating conditions, and with a wide range of output capacitors, even all ceramic output capacitors. Current mode control provides cycle-by-cycle fast cur- rent limit. Besides, current limiting is provided in an overcurrent condition with thermal shutdown. In addition, internal overvoltage and undervoltage comparators pull the open-drain PGOOD outputs low if the particular output feedback voltage exits a ±7.5% window around the regu- lation point. Furthermore, in an overvoltage condition, internal top FET , M1, is turned off and bottom FET , M2, is turned on and held on until the overvoltage condition clears, or current limit is exceeded. Pulling each specifi c RUN pin below 0.8V forces the spe- cifi c regulator controller into its shutdown state, turning off both M1 and M2 for each power stage. At low load current, each regulator works in continuous current mode by default to achieve minimum output voltage ripple. The TRACK/SS pins are used for power supply tracking and soft-start programming for each specifi c regulator . See Applications Information section. The L TM4614 is internally compensated to be stable over the operating conditions. Table 4 provides a guideline for input and output capacitance for several operating condi- tions. The Linear Technology μModule Power Design Tool will be provided for transient and stability analysis. The FB pins are used to program the specifi c output volt- age with a single resistor to ground.

A typical L TM4614 application circuit is shown in Figure 12. Table 1. FB Resistor Table vs Various Output Voltages included inside the module for each regulator channel. long inductive leads or traces. input capacitance due to high inductance traces or leads. ripple current for the 4A maximum current is 2A or less. to 2A ripple current rating. capacitor , low ESR polymer capacitor or ceramic capacitor . The typical output capacitance range is 66μF to 100μF . the voltage droop and overshoot during a 2A/μs transient. capacitance to maximize transient performance.

Figure 2. Dual Outputs (1.5V and 1.2V) with Tracking

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in steady-state operation, but also in transient. around 150°C for each channel. accurate 4.99k resistor for the internal top feedback resistor . Figure 2 shows an example of coincident tracking.

Figure 3. Output Voltage Coincident Tracking

4614 F03

TRACK1 is the track ramp applied to the slave’s track pin. has reached its fi nal value. master’s output slew rate in Volts/Time. VTRACK. Therefore RTB = 4.99k and RTA = 10k in Figure 2. will reach it fi nal value before the master output. for tracking to operate properly during power down. monitor a ±7.5% window around the regulation point. already been internally compensated for all output voltages. Table 4 is provided for most application requirements. be provided for other control loop optimization.

sharing. This will balance the thermals on the design. N is the number of paralleled channels. perature chamber along with thermal modeling analysis. current or power while increasing ambient temperature. Figure 5. 1.2V Power Loss Figure 6. 3.3V Power Loss

4614 F05

4614 F06

Figure 7. 1.2V No Heat Sink (VIN = 5V) Figure 8. 1.2V Heat Sink (VIN = 5V) Figure 9. 3.3V No Heat Sink (VIN = 5V) Figure 10. 3.3V Heat Sink (V IN = 5V)

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4614 F08

4614 F09

4614 F10

30°C divided 1.5W equals a 20°C/W thermal resistance. the Pin Confi guration diagram.

Figure 11. Recommended PCB Layout

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provided to protect each unit from catastrophic failure.

• Use large PCB copper areas for high current path, including V IN, GND and VOUT. It helps to minimize the PCB conduction loss and thermal stress.
• Place high frequency ceramic input and output capaci- tors next to the V IN, GND and V OUT pins to minimize high frequency noise.
• Place a dedicated power ground layer underneath the unit.
• To minimize the via conduction loss and reduce module thermal stress, use multiple vias for interconnection between the top layer and other power layers.
• Do not put via directly on pads unless the via is capped. Figure 11 gives a good example of the recommended layout.

Figure 12. Typical 2.375VIN to 5.5VIN, 1.2V and 1V at 4A Table 4. Output Voltage Response vs Component Matrix (Refer to Figure 12) 0A to 2.5A Load Step Typical Measured Values *Bulk capacitance is optional if VIN has very low input impedance.

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Figure 13. L TM4614 Parallel 1.2V at 8A Design (Also, See the L TM4608A) Figure 14. 1.8V and 1.5V at 4A with Output Voltage T racking Design

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144-Lead (15mm × 15mm × 2.82mm) (Reference L TC DWG # 05-08-1816 Rev A) NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994 2. ALL DIMENSIONS ARE IN MILLIMETERS LAND DESIGNATION PER JESD MO-222, SPP-010 5. PRIMARY DATUM -Z- IS SEATING PLANE 6. THE TOTAL NUMBER OF PADS: 144 DETAILS OF PAD #1 IDENTIFIER ARE OPTIONAL, BUT MUST BE LOCATED WITHIN THE ZONE INDICATED. THE PAD #1 IDENTIFIER MAY BE EITHER A MOLD OR MARKED FEATURE SYMBOL aaa bbb eee TOLERANCE 0.10 0.10 0.05 2.72 – 2.92 DETAIL B DETAIL B SUBSTRATE MOLD CAP 0.27 – 0.37 2.45 – 2.55 bbb Z Z BSC PACKAGE TOP VIEW BSC PAD 1 CORNER X Y aaa Z aaa Z DETAIL A 13.97 BSC 1.27 BSC 13.97 BSC 0.12 – 0.28 PACKAGE BOTTOM VIEW3 PADS SEE NOTES SUGGESTED PCB LAYOUT TOP VIEW 0.0000 0.6350 0.6350 1.9050 1.9050 3.1750 3.1750 4.4450 4.4450 5.7150 5.7150 6.9850 6.9850 6.9850 5.7150 5.7150 4.4450 4.4450 3.1750 3.1750 1.9050 1.9050 0.6350 0.6350 0.0000 6.9850 LGA 144 0308 REV A L TMXXXXXX mModule TRAY PIN 1 BEVEL PACKAGE IN TRAY LOADING ORIENTATION COMPONENT PIN “A1” DIA 0.630 PAD 1 3x, C (0.22 x45°) DETAIL A 0.630 ±0.025 SQ. 143x S YXeee L K J H G F E D C B M A 1234567810 91112

Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However , no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. PACKAGE DESCRIPTION L TM4614 Component LGA Pinout PIN ID FUNCTION PIN ID FUNCTION PIN ID FUNCTION PIN ID FUNCTION PIN ID FUNCTION PIN ID FUNCTION A1 GND2 B1 GND2 C1 V IN2 D1 V IN2 E1 GND2 F1 GND2 A2 GND2 B2 SW2 C2 V IN2 D2 V IN2 E2 RUN/SS2 F2 GND2 A3 GND2 B3 SW2 C3 V IN2 D3 V IN2 E3 TRACK2 F3 GND2 A4 GND2 B4 SW2 C4 V IN2 D4 V IN2 E4 PGOOD2 F4 GND2 A5 GND2 B5 SW2 C5 V IN2 D5 V IN2 E5 COMP2 F5 GND2 A6 GND2 B6 SW2 C6 V IN2 D6 V IN2 E6 FB2 F6 GND2 A7 GND2 B7 GND2 C7 GND2 D7 GND2 E7 GND2 F7 GND2 A8 GND2 B8 GND2 C8 GND2 D8 GND2 E8 GND2 F8 GND2 A9 GND2 B9 GND2 C9 V OUT2 D9 V OUT2 E9 V OUT2 F9 V OUT2 A10 GND2 B10 GND2 C10 V OUT2 D10 V OUT2 E10 V OUT2 F10 V OUT2 A11 GND2 B11 GND2 C11 V OUT2 D11 V OUT2 E11 V OUT2 F11 V OUT2 A12 GND2 B12 GND2 C12 V OUT2 D12 V OUT2 E12 V OUT2 F12 V OUT2 PIN ID FUNCTION PIN ID FUNCTION PIN ID FUNCTION PIN ID FUNCTION PIN ID FUNCTION PIN ID FUNCTION G1 GND1 H1 GND1 J1 V IN1 K1 V IN1 L1 GND1 M1 GND1 G2 GND1 H2 SW1 J2 V IN1 K2 V IN1 L2 RUN/SS1 M2 GND1 G3 GND1 H3 SW1 J3 V IN1 K3 V IN1 L3 TRACK1 M3 GND1 G4 GND1 H4 SW1 J4 V IN1 K4 V IN1 L4 PGOOD1 M4 GND1 G5 GND1 H5 SW1 J5 V IN1 K5 V IN1 L5 COMP1 M5 GND1 G6 GND1 H6 SW1 J6 V IN1 K6 V IN1 L6 FB1 M6 GND1 G7 GND1 H7 GND1 J7 GND1 K7 GND1 L7 GND1 M7 GND1 G8 GND1 H8 GND1 J8 GND1 K8 GND1 L8 GND1 M8 GND1 G9 GND1 H9 GND1 J9 V OUT1 K9 V OUT1 L9 V OUT1 M9 V OUT1 G10 GND1 H10 GND1 J10 V OUT1 K10 V OUT1 L10 V OUT1 M10 V OUT1 G11 GND1 H11 GND1 J11 V OUT1 K11 V OUT1 L11 V OUT1 M11 V OUT1 G12 GND1 H12 GND1 J12 V OUT1 K12 V OUT1 L12 V OUT1 M12 V OUT1

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2900 Quad Supply Monitor with Adjustable Reset Timer Monitors Four Supplies, Adjustable Reset Timer

L TC2923 Power Supply T racking Controller T racks Both Up and Down, Power Supply Sequencing L TM4600HV 10A DC/DC μModule 4.5V ≤ V IN ≤ 28V , 0.6V ≤ VOUT ≤ 5V , LGA Package L TM4600HVMP Wide Temperature Range 10A DC/DC μModule Guaranteed Operation from –55°C to 125°C Ambient, LGA Package L TM4601A 12A DC/DC μModule with PLL, Output T racking/Margining and Remote Sensing Synchronizable PolyPhase Operation, L TM4601-1/L TM4601A-1 Version Has No Remote Sensing, LGA Package L TM4602 6A DC/DC μModule Pin Compatible with the L TM4600, LGA Package L TM4603 6A DC/DC μModule with PLL and Output T racking/ Margining and Remote Sensing Synchronizable, PolyPhase Operation, L TM4603-1 Version Has No Remote Sensing, Pin Compatible with the L TM4601, LGA Package L TM4604A Low V IN 4A DC/DC μModule 2.375V ≤ VIN ≤ 5.5V , 0.8V ≤ VOUT ≤ 5V , 9mm × 15mm × 2.3mm L TM4605 5A to 12A Buck-Boost μModule 4.5V ≤ VIN ≤ 20V , 0.8V ≤ VOUT ≤ 16V , 15mm × 15mm × 2.8mm L TM4607 5A to 12A Buck-Boost μModule 4.5V ≤ VIN ≤ 36V , 0.8V ≤ VOUT ≤ 25V , 15mm × 15mm × 2.8mm L TM4608A Low V IN 8A DC/DC Step-Down μModule 2.7V ≤ VIN ≤ 5.5V , 0.6V ≤ VOUT ≤ 5V , 9mm × 15mm × 2.8mm L TM4615 T riple Low V IN DC/DC μModule T wo 4A Outputs and One 1.5A Output; 15mm × 15mm × 2.8mm L TM4616 Dual 8A DC/DC μModule Current Share Inputs or Outputs; 15mm × 15mm × 2.8mm L TM8022 High V IN 1A DC/DC Step-Down μModule 3.6V ≤ VIN ≤ 36V , 0.8V ≤ VOUT ≤ 10V , 11.25mm × 9mm × 2.8mm L TM8023 High V IN 2A DC/DC Step-Down μModule 3.6V ≤ VIN ≤ 36V , 0.8V ≤ VOUT ≤ 10V , 11.25mm × 9mm × 2.8mm PolyPhase is a registered trademark of Linear Technology Corporation. PACKAGE PHOTOGRAPH