TPS77501-EP TI1 | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 26
Technical content
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP TPS77525-EP, TPS77533-EP WITH RESET OUTPUT FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS /Em SGLS010B − MARCH 2003 − REVISED JUNE 2010 1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 /C0068Controlled Baseline − One Assembly/Test Site, One Fabrication Site /C0068Extended Temperature Performance of −55°C to 125°C /C0068Enhanced Diminishing Manufacturing Sources (DMS) Support /C0068Enhanced Product Change Notification /C0068Qualification Pedigree† /C0068Open Drain Power-On Reset With 200-ms Delay /C0068500-mA Low-Dropout Voltage Regulator Fixed Output and Adjustable Versions /C0068Dropout Voltage to 169 mV (Typ) at 500 mA (TPS77533) † Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits. /C0068Ultralow 85 μA Typical Quiescent Current /C0068Fast Transient Response /C00682% Tolerance Over Specified Conditions for Fixed-Output Versions /C006820-Pin TSSOP PowerPAD™ (PWP) Package /C0068Thermal Shutdown Protection
description
The TPS775xx devices are designed to have a fast transient response and be stable with a 10- μF low ESR capacitors. This combination provides high performance at a reasonable cost. Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 169 mV at an output current of 500 mA for the TPS77533) and is directly proportional to the output current. Additionally, since the PMOS pass element is a voltage-driven device, the quiescent current is very low and independent of output loading (typically 85 μA over the full range of output current, 0 mA to 500 mA). These two key specifications yield a significant improvement in operating life for battery-powered systems. This LDO family also features a sleep mode; applying a TTL high signal to EN (enable) shuts down the regulator, reducing the quiescent current to 1 μA at TJ = 25°C. The RESET output of the TPS775xx initiates a reset in microcomputer and microprocessor systems in the event of an undervoltage condition. An internal comparator in the TPS775xx monitors the output voltage of the regulator to detect an undervoltage condition on the regulated output voltage. (programmable over the range of 1.5 V to 5.5 V for TPS77501 option. Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges. The TPS775xx family is available in 20 pin TSSOP package. Copyright © 2010, Texas Instruments IncorporatedPRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning avail ability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PowerPAD is a trademark of Texas Instruments. NC − No internal connection GND/HSINK GND/HSINK GND NC EN IN IN NC GND/HSINK GND/HSINK GND/HSINK GND/HSINK NC NC RESET FB/NC OUT OUT GND/HSINK GND/HSINK PWP PACKAGE (TOP VIEW)
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP TPS77525-EP, TPS77533-EP WITH RESET OUTPUT FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS /Em SGLS010B − MARCH 2003 − REVISED JUNE 2010
2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
t − Time − μs TPS77x33 LOAD TRANSIENT RESPONSE I − Output Current − mAO VO − Change inΔ Output Voltage − mV 500 −50 Co = 2x47 μF ESR = 1/2x100 mΩ VO = 3.3 V VI = 4.3 V 06 0 4020 80 100 140 120 160 180 200 TA − Free-Air Temperature − °C −40 0 20 120 103 −60 40 60 80 100 − Dropout Voltage − mVVDO TPS77x33 DROPOUT VOLTAGE vs FREE-AIR TEMPERATURE 102 101 100 10−1 10−2 −20 140 IO = 10 mA IO = 0 mA Co = 10 μF IO = 500 mA ORDERING INFORMATION† TA OUTPUT VOLTAGE (V TYP) PACKAGE ORDERABLE PART NUMBER TOP-SIDE MARKING
3.3 TSSOP − PW Tape and reel TPS77533MPWPREP 77533ME
2.5 TSSOP − PW Tape and reel TPS77525MPWPREP 77525ME
1.8 TSSOP − PW Tape and reel TPS77518MPWPREP 77518ME
−55°C to 125°C 1.6 TSSOP − PW Tape and reel TPS77516MPWPREP§ 77516ME
1.5 TSSOP − PW Tape and reel TPS77515MPWPREP 77515ME
Adjustable‡ 1.5 V to 5.5 V TSSOP − PW Tape and reel TPS77501MPWPREP 77501ME † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. ‡ The TPS77501 is programmable using an external resistor divider (see application information). § TPS77516 is Product Preview.
† See application information section for capacitor selection details. Figure 1. Typical Application Configuration for Fixed Output Options
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP TPS77525-EP, TPS77533-EP WITH RESET OUTPUT FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS /Em SGLS010B − MARCH 2003 − REVISED JUNE 2010
4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
functional block diagram—fixed-voltage version Vref = 1.183 V OUT EN GND RESET IN 200 ms Delay (for RESET Option) Terminal Functions TERMINAL I/O DESCRIPTIONNAME NO. I/O DESCRIPTION EN 5 I Enable input FB/NC 15 I Feedback input voltage for adjustable device (no connect for fixed options) GND 3 Regulator ground GND/HSINK 1, 2, 9, 10, 11, 12, 19, 20 Ground/heatsink IN 6, 7 I Input voltage NC 4, 8, 17, 18 No connect OUT 13, 14 O Regulated output voltage RESET 16 O RESET output
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP TPS77525-EP, TPS77533-EP WITH RESET OUTPUT FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS /Em SGLS010B − MARCH 2003 − REVISED JUNE 2010 5POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 RESET timing diagram † Vres is the minimum input voltage for a valid RESET. The symbol Vres is not currently listed within EIA or JEDEC standards for semiconductor symbology. ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ VI Vres† t t t VO Threshold Voltage RESET Output 200 ms Delay 200 ms Delay Output Undefined Output Undefined VIT +‡ VIT −‡ VIT −‡ VIT +‡ Less than 5% of the output voltage ‡ VIT −Trip voltage is typically 5% lower than the output voltage (95%VO) VIT− to VIT+ is the hysteresis voltage. Vres†
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP TPS77525-EP, TPS77533-EP WITH RESET OUTPUT FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS /Em SGLS010B − MARCH 2003 − REVISED JUNE 2010
6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. ‡ All voltage values are with respect to network terminal ground. § Package thermal impedance is calculated in accordance with JESD 51-5. Electromigration Fail Mode Wirebond Voiding Fail Mode Estimated Lifetime in Years 1000 100 115 120 125 130 135 140 Continous Tj - Junction Temperature - /C0053C TPS77501MPWP-EP Estimated Lifetime at Elevated Temperatures Electromigration and Wirebond Voiding Fail Modes 145 150 recommended operating conditions MIN MAX UNIT Input voltage, VI# 2.7 10 V Output voltage range, VO 1.5 5.5 V Output current, IO (see Note 1) 0 500 mA Operating virtual junction temperature, TJ (see Note 1) −55 125 °C # To calculate the minimum input voltage for your maximum output current, use the following equation: VI(min) = VO(max) + VDO(max load). NOTE 1: Continuous current and operating junction temperature are limited by internal protection circuitry, but it is not recommended that the device operate under conditions beyond those specified in this table for extended periods of time.
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP TPS77525-EP, TPS77533-EP WITH RESET OUTPUT FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS /Em SGLS010B − MARCH 2003 − REVISED JUNE 2010 7POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 electrical characteristics over recommended operating free-air temperature range, VI = VO(typ) + 1 V, IO = 1 mA, EN = 0 V, Co = 10 μF (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TPS77501 1.5 V ≤ VO ≤ 5.5 V, T J = 25°C VO TPS77501 1.5 V ≤ VO ≤ 5.5 V, T J = −55°C to 125°C 0.98VO 1.02VO V TPS77515 TJ = 25°C, 2.7 V < V IN < 10 V 1.5 V TPS77515 TJ = −55°C to 125°C, 2.7 V < V IN < 10 V 1.470 1.530 TPS77516 TJ = 25°C, 2.7 V < V IN < 10 V 1.6 V Output voltage (10 μA to 500 mA load) TPS77516 TJ = −55°C to 125°C, 2.7 V < V IN < 10 V 1.568 1.632 V Output voltage (10 μA to 500 mA load) (see Note 2) TPS77518 TJ = 25°C, 2.8 V < V IN < 10 V 1.8 TPS77518 TJ = −55°C to 125°C, 2.8 V < V IN < 10 V 1.764 1.836 TPS77525 TJ = 25°C, 3.5 V < V IN < 10 V 2.5 VTPS77525 TJ = −55°C to 125°C, 3.5 V < V IN < 10 V 2.450 2.550 V TPS77533 TJ = 25°C, 4.3 V < V IN < 10 V 3.3 TPS77533 TJ = −55°C to 125°C, 4.3 V < V IN < 10 V 3.234 3.366 Quiescent current (GND current) 10 μA < IO < 500 mA, T J = 25°C 85 AQuiescent current (GND current) EN = 0V, (see Note 2) IO = 500 mA, T J = −55°C to 125°C 125 μA Output voltage line regulation (ΔVO/VO) (see Notes 2 and 3) VO + 1 V < VI ≤ 10 V, T J = 25°C 0.01 %/V Load regulation 3 mV Output noise voltage (TPS77518) BW = 200 Hz to 100 kHz, IC = 500 mA Co = 10 μF, T J = 25°C 53 μVrms Output current limit VO = 0 V 1.7 2.4 A Thermal shutdown junction temperature 150 °C EN = VI,T J = 25°C, 2.7 V < VI < 10 V 1 μA Standby current EN = VI,T J = −55°C to 125°C
2.7 V < VI < 10 V 10 μA
FB input current TPS77501 FB = 1.5 V 2 nA High level enable input voltage 1.7 V Low level enable input voltage 0.9 V Power supply ripple rejection (see Note 2) f = 1 KHz, Co = 10 μF, TJ = 25°C 60 dB NOTES: 2. Minimum IN operating voltage is 2.7 V or V O(typ) + 1 V, whichever is greater. Maximum IN voltage 10V. 3. If V O ≤ 1.8 V then VImin = 2.7 V, VImax = 10 V: Line Reg. (mV) /C0043/C0466%/C0324V/C0467/C0032 VO/C0466VImax /C00422.7 V/C0467 100 /C00321000 If VO ≥ 2.5 V then VImin = VO + 1 V, VImax = 10 V: Line Reg. (mV) /C0043/C0466%/C0324V/C0467/C0032 VO/C0466VImax /C0042/C0466VO /C00411V /C0467/C0467 100 /C00321000
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP TPS77525-EP, TPS77533-EP WITH RESET OUTPUT FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS /Em SGLS010B − MARCH 2003 − REVISED JUNE 2010
8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range, VI = VO(typ) + 1 V, IO = 1 mA, EN = 0 V, Co = 10 μF (unless otherwise noted) (continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Minimum input voltage for valid RESET IO(RESET) = 300 μA 1.1 V Trip threshold voltage VO decreasing 92 98 %VO Reset Hysteresis voltage Measured at VO 0.5 %VO Reset Output low voltage VI = 2.7 V, IO(RESET) = 1mA 0.15 0.4 V Leakage current V(RESET) = 5 V 1 μA RESET time-out delay 200 ms Input current (EN) EN = 0 V −1 0 1 AInput current (EN) EN = VI −1 1 μA Dropout voltage (see Note 4) TPS77533 IO = 500 mA, TJ = 25°C 169 mVDropout voltage (see Note 4) TPS77533 IO = 500 mA, TJ = −55°C to 125°C 287 mV NOTE 4: IN voltage equals V O(typ) − 100 mV; TPS77515, TPS77516, TPS77518, and TPS77525 dropout voltage limited by input voltage range limitations (i.e., TPS77533 input voltage needs to drop to 3.2 V for purpose of this test). TY PICAL CHARACTERISTICS Table of Graphs FIGURE V Output voltage vs Output current 2, 3, 4 VO Output voltage vs Free-air temperature 5, 6, 7 Ground current vs Free-air temperature 8 Power supply ripple rejection vs Frequency 9 Output spectral noise density vs Frequency 10 Zo Output impedance vs Frequency 11 V Dropout voltage vs Input voltage 12 VDO Dropout voltage vs Free-air temperature 13 Input voltage (min) vs Output voltage 14 Line transient response 15, 17 Load transient response 16, 18 VO Output voltage vs Time 19 Equivalent series resistance (ESR) vs Output current 21 − 24
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP TPS77525-EP, TPS77533-EP WITH RESET OUTPUT FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS /Em SGLS010B − MARCH 2003 − REVISED JUNE 2010
10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TA − Free-Air Temperature − °C TPS77x15 OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE − Output Voltage − VVO 1.515 1.500 1.485 −40 0 1.510 1.505 1.495 −20 100−60 120 1.490 20 40 60 80 VI = 2.7 V IO = 500 mA IO = 1 mA 140 Figure 7 TA − Free-Air Temperature − °C TPS77x25 OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE − Output Voltage − VVO −40 0 −20 100−60 120 20 40 60 80 2.515 2.500 2.480 2.510 2.505 2.495 2.490 2.485 VI = 3.5 V IO = 500 mA IO = 1 mA Figure 8 TA − Free-Air Temperature − °C TPS77xxx GROUND CURRENT vs FREE-AIR TEMPERATURE Ground Current − Aμ −40 0−20 100−60 120 20 40 60 80 140 VI = 2.7 V 100 IO = 1 mA IO = 500 mA Figure 9 PSRR − Power Supply Ripple Rejection − dB f − Frequency − Hz POWER SUPPLY RIPPLE REJECTION vs FREQUENCY −10 TPS77x33 101 VI = 4.3 V Co = 10 μF TA = 25°C 102 103 104 105 106
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP TPS77525-EP, TPS77533-EP WITH RESET OUTPUT FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS /Em SGLS010B − MARCH 2003 − REVISED JUNE 2010
12 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
2.7 − Input Voltage (Min) − V INPUT VOLTAGE (MIN) vs OUTPUT VOLTAGE 3 3.25 3.5 VI VO − Output Voltage − V IO = 0.5 A TA = −40°C TA = 25°C TA = 125°C VO − Change in 3.7 2.7 TPS77x15 LINE TRANSIENT RESPONSE VI t − Time − μs 06 0 4020 80 100 140 120 160 180 200 − Input Voltage − VΔ Output Voltage − mV Co = 10 μF TA = 25°C −10 Figure 15 Figure 16 t − Time − μs TPS77x15 LOAD TRANSIENT RESPONSE I − Output Current − mAO VO − Change inΔ Output Voltage − mV Co = 2x47 μF ESR = 1/2x100 mΩ VO = 1.5 V VIN = 2.7 V 500 06 0 4020 80 100 140 120 160 180 200 −50 TPS77x33 LINE TRANSIENT RESPONSE t − Time − μs VO − Change in VI − Input Voltage − VΔ Output Voltage − mV 5.3 604020 80 100 140 120 160 180 200 Co = 10 μF TA = 25°C 4.3 −10 Figure 17
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP TPS77525-EP, TPS77533-EP WITH RESET OUTPUT FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS /Em SGLS010B − MARCH 2003 − REVISED JUNE 2010
14 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
ESR − Equivalent Series Resistance − Ω Figure 21 0.1 0 100 200 300 400 500 TYPICAL REGION OF STABILITY EQUIVALENT SERIES RESISTANCE† vs OUTPUT CURRENT IO − Output Current − mA VO = 3.3 V Co = 4.7 μF VI = 4.3 V TA = 25°C Region of Stability Region of Instability Figure 22 TYPICAL REGION OF STABILITY EQUIVALENT SERIES RESISTANCE† vs OUTPUT CURRENT IO − Output Current − mA ESR − Equivalent Series Resistance − Ω 0.1 0 100 200 300 400 500 VO = 3.3 V Co = 4.7 μF VI = 4.3 V TJ = 125°C Region of Stability Region of Instability ESR − Equivalent Series Resistance − Ω Figure 23 0.1 0 100 200 300 400 500 TYPICAL REGION OF STABILITY EQUIVALENT SERIES RESISTANCE† vs OUTPUT CURRENT IO − Output Current − mA Region of Instability Region of Stability VO = 3.3 V Co = 22 μF VI = 4.3 V TA = 25°C ESR − Equivalent Series Resistance − Ω Figure 24 TYPICAL REGION OF STABILITY EQUIVALENT SERIES RESISTANCE† vs OUTPUT CURRENT 0.1 0 100 200 300 400 500 IO − Output Current − mA Region of Stability Region of Instability VO = 3.3 V Co = 22 μF VI = 4.3 V TJ = 125°C † Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resist ance added externally, and PWB trace resistance to Co.
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP TPS77525-EP, TPS77533-EP WITH RESET OUTPUT FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS /Em SGLS010B − MARCH 2003 − REVISED JUNE 2010 15POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
adjustable regulator, the TPS77501 (adjustable from 1.5 V to 5.5 V). device operation The TPS775xx feature very low quiescent current, which remains virtually constant even with varying loads. Conventional LDO regulators use a pnp pass element, the base current of which is directly proportional to the load current through the regulator (I B = IC/β). The TPS775xx use a PMOS transistor to pass current; because the gate of the PMOS is voltage driven, operating current is low and invariable over the full load range. Another pitfall associated with the pnp-pass element is its tendency to saturate when the device goes into dropout. The resulting drop in β forces an increase in IB to maintain the load. During power up, this translates to large start-up currents. Systems with limited supply current may fail to start up. In battery-powered systems, it means rapid battery discharge when the voltage decays below the minimum required for regulation. The TPS775xx quiescent currents remain low even when the regulator drops out, eliminating both problems. The TPS775xx family also features a shutdown mode that places the output in the high-impedance state (essentially equal to the feedback-divider resistance) and reduces quiescent current to 2 μA. If the shutdown feature is not used, EN should be tied to ground. minimum load requirements The TPS775xx family is stable even at zero load; no minimum load is required for operation. FB—pin connection (adjustable version only) The FB pin is an input pin to sense the output voltage and close the loop for the adjustable option . The output voltage is sensed through a resistor divider network to close the loop as it is shown in Figure 26. Normally, this connection should be as short as possible; however, the connection can be made near a critical circuit to improve performance at that point. Internally, FB connects to a high-impedance wide-bandwidth amplifier and noise pickup feeds through to the regulator output. Routing the FB connection to minimize/avoid noise pickup is essential. external capacitor requirements An input capacitor is not usually required; however, a ceramic bypass capacitor (0.047 μF or larger) improves load transient response and noise rejection if the TPS775xx is located more than a few inches from the power supply. A higher-capacitance electrolytic capacitor may be necessary if large (hundreds of milliamps) load transients with fast rise times are anticipated. Like all low dropout regulators, the TPS775xx require an output capacitor connected between OUT and GND to stabilize the internal control loop. The minimum recommended capacitance value is 10 μF and the ESR (equivalent series resistance) must be between 50 mΩ and 1.5 Ω. Capacitor values 10 μF or larger are acceptable, provided the ESR is less than 1.5 Ω. Solid tantalum electrolytic, aluminum electrolytic, and multilayer ceramic capacitors are all suitable, provided they meet the requirements described previously.
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP TPS77525-EP, TPS77533-EP WITH RESET OUTPUT FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS /Em SGLS010B − MARCH 2003 − REVISED JUNE 2010
16 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
external capacitor requirements (continued) RESET OUT OUT IN IN EN GND VI 0.1 μF RESET VO 10 μF + Co 250 kΩ Figure 25. Typical Application Circuit (Fixed Versions) Figure 26. TPS77501 Adjustable LDO Regulator Programming
TPS77501-EP, TPS77515-EP, TPS77516-EP, TPS77518-EP TPS77525-EP, TPS77533-EP WITH RESET OUTPUT FAST-TRANSIENT-RESPONSE 500-mA LOW-DROPOUT VOLTAGE REGULATORS /Em SGLS010B − MARCH 2003 − REVISED JUNE 2010 17POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 The TPS775xx features a RESET output that can be used to monitor the status of the regulator. The internal comparator monitors the output voltage: when the output drops to between 92% and 98% of its nominal regulated value, the RESET output transistor turns on, taking the signal low. The open-drain output requires a pullup resistor. If not used, it can be left floating. RESET can be used to drive power-on reset circuitry or as a low-battery indicator. RESET does not assert itself when the regulated output voltage falls outside the specified 2% tolerance, but instead reports an output voltage low relative to its nominal regulated value (refer to timing diagram for start-up sequence). regulator protection The TPS775xx PMOS-pass transistors have a built-in back diode that conducts reverse currents when the input voltage drops below the output voltage (e.g., during power down). Current is conducted from the output to the input and is not internally limited. When extended reverse voltage is anticipated, external limiting may be appropriate. The TPS775xx also feature internal current limiting and thermal protection. During normal operation, the TPS775xx limit output current to approximately 1.7 A. When current limiting engages, the output voltage scales back linearly until the overcurrent condition ends. While current limiting is designed to prevent gross device failure, care should be taken not to exceed the power dissipation ratings of the package. If the temperature of the device exceeds 150°C(typ), thermal-protection circuitry shuts it down. Once the device has cooled below 130 °C(typ), regulator operation resumes. power dissipation and junction temperature Specified regulator operation is assured to a junction temperature of 125 °C; the maximum junction temperature should be restricted to 125°C under normal operating conditions. This restriction limits the power dissipation the regulator can handle in any given application. To ensure the junction temperature is within acceptable limits, calculate the maximum allowable dissipation, P D(max), and the actual dissipation, PD, which must be less than or equal to PD(max). The maximum-power-dissipation limit is determined using the following equation: PD(max) /C0043 TJmax /C0042TA R/C0113JA Where: TJmax is the maximum allowable junction temperature. TA is the ambient temperature. RθJA is the thermal resistance junction-to-ambient for the package, i.e., 32.6°C/W for the 20-terminal PWP with no airflow. The regulator dissipation is calculated using: PD /C0043/C0466VI /C0042VO/C0467/C0032IO Power dissipation resulting from quiescent current is negligible. Excessive power dissipation will trigger the thermal protection circuit.
www.ti.com 16-Jun-2010 Addendum-Page 1 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) TPS77501MPWPREP ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Contact TI Distributor or Sales Office TPS77501MPWPREPG4 ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Contact TI Distributor or Sales Office TPS77515MPWPREP ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Contact TI Distributor or Sales Office TPS77518MPWPREP ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Contact TI Distributor or Sales Office TPS77525MPWPREP ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Contact TI Distributor or Sales Office TPS77533MPWPREP ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Contact TI Distributor or Sales Office V62/03631-01XE ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Contact TI Distributor or Sales Office V62/03631-02XE ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Contact TI Distributor or Sales Office V62/03631-04XE ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Contact TI Distributor or Sales Office V62/03631-05XE ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Contact TI Distributor or Sales Office V62/03631-06XE ACTIVE HTSSOP PWP 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR Contact TI Distributor or Sales Office (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
www.ti.com 16-Jun-2010 Addendum-Page 2 Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. OTHER QUALIFIED VERSIONS OF TPS77501-EP, TPS77515-EP, TPS77518-EP, TPS77525-EP, TPS77533-EP :
- Catalog: TPS77501 , TPS77515 , TPS77518 , TPS77525 , TPS77533
- Automotive: TPS77501-Q1 , TPS77515-Q1 , TPS77518-Q1 , TPS77525-Q1 , TPS77533-Q1 NOTE: Qualified Version Definitions:
- Catalog - TI's standard catalog product
- Automotive - Q100 devices qualified for high-reliability automotive applications targeting zero defects
*All dimensions are nominal Device Package Type Package Drawing Pins SPQ Reel Diameter (mm) Reel Width W1 (mm) (mm) (mm) (mm) (mm) W (mm) Pin1 Quadrant PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 Pack Materials-Page 1
*All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TPS77501MPWPREP HTSSOP PWP 20 2000 367.0 367.0 38.0 TPS77515MPWPREP HTSSOP PWP 20 2000 367.0 367.0 38.0 TPS77518MPWPREP HTSSOP PWP 20 2000 367.0 367.0 38.0 TPS77525MPWPREP HTSSOP PWP 20 2000 367.0 367.0 38.0 TPS77533MPWPREP HTSSOP PWP 20 2000 367.0 367.0 38.0 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 Pack Materials-Page 2
Texas InstrumentsIncorporatedand itssubsidiaries(TI)reservetherighttomake corrections,enhancements,improvementsand other changes toitssemiconductorproductsand servicesperJESD46C and todiscontinueany productorserviceperJESD48B. Buyersshould obtainthelatestrelevantinformationbeforeplacingordersand shouldverifythatsuch informationiscurrentand complete.All semiconductorproducts(alsoreferredtohereinas “components”)aresoldsubjecttoTI’s termsand conditionsofsalesuppliedatthetime oforderacknowledgment. TIwarrantsperformanceofitscomponents tothespecificationsapplicableatthetimeofsale,inaccordancewiththewarrantyinTI’s terms and conditionsofsaleofsemiconductorproducts.Testingand otherqualitycontroltechniquesareused totheextentTIdeems necessary tosupportthiswarranty.Exceptwhere mandated by applicablelaw,testingofallparametersofeach component isnotnecessarily performed. TIassumes no liabilityforapplicationsassistanceorthedesignofBuyers’products.Buyersareresponsiblefortheirproductsand applicationsusingTIcomponents.To minimizetherisksassociatedwithBuyers’productsand applications,Buyersshouldprovide adequatedesignand operatingsafeguards. TIdoes notwarrantorrepresentthatany license,eitherexpressorimplied,isgrantedunderany patentright,copyright,mask work right,or otherintellectualpropertyrightrelatingtoany combination,machine,orprocessinwhichTIcomponents orservicesareused.Information publishedby TIregardingthird-partyproductsorservicesdoes notconstitutea licensetouse such productsorservicesora warrantyor endorsementthereof.Use ofsuch informationmay requirea licensefroma thirdpartyunderthepatentsorotherintellectualpropertyofthe thirdparty,ora licensefromTIunderthepatentsorotherintellectualpropertyofTI. ReproductionofsignificantportionsofTIinformationinTIdatabooks ordatasheetsispermissibleonlyifreproductioniswithoutalteration and isaccompaniedby allassociatedwarranties,conditions,limitations,and notices.TIisnotresponsibleorliableforsuch altered documentation.Informationofthirdpartiesmay be subjecttoadditionalrestrictions. ResaleofTIcomponents orserviceswithstatementsdifferentfromorbeyond theparametersstatedby TIforthatcomponent orservice voidsallexpressand any impliedwarrantiesfortheassociatedTIcomponent orserviceand isan unfairand deceptivebusinesspractice. TIisnotresponsibleorliableforany such statements. Buyeracknowledgesand agreesthatitissolelyresponsibleforcompliancewithalllegal,regulatoryand safety-relatedrequirements concerningitsproducts,and any use ofTIcomponents initsapplications,notwithstandingany applications-relatedinformationorsupport thatmay be providedby TI.Buyerrepresentsand agreesthatithas allthenecessaryexpertisetocreateand implementsafeguardswhich anticipatedangerousconsequencesoffailures,monitorfailuresand theirconsequences,lessenthelikelihoodoffailuresthatmightcause harm and takeappropriateremedialactions.BuyerwillfullyindemnifyTIand itsrepresentativesagainstany damages arisingoutoftheuse ofany TIcomponents insafety-criticalapplications. Insome cases,TIcomponents may be promotedspecificallytofacilitatesafety-relatedapplications.Withsuch components,TI’s goalisto helpenablecustomerstodesignand createtheirown end-productsolutionsthatmeet applicablefunctionalsafetystandardsand requirements.Nonetheless,such components aresubjecttotheseterms. No TIcomponents areauthorizedforuse inFDA ClassIII(orsimilarlife-criticalmedicalequipment)unlessauthorizedofficersoftheparties have executeda specialagreementspecificallygoverningsuch use. OnlythoseTIcomponents whichTIhas specificallydesignatedas militarygradeor“enhanced plastic”aredesignedand intendedforuse in military/aerospaceapplicationsorenvironments.Buyeracknowledgesand agreesthatany militaryoraerospaceuse ofTIcomponents whichhave not been so designatedissolelyattheBuyer's risk,and thatBuyerissolelyresponsibleforcompliancewithalllegaland regulatoryrequirementsinconnectionwithsuch use. TIhas specificallydesignatedcertaincomponents whichmeet ISO/TS16949 requirements,mainlyforautomotiveuse.Components which have notbeen so designatedareneitherdesignednorintendedforautomotiveuse;and TIwillnotbe responsibleforany failureofsuch components tomeet such requirements. Products Applications Audio www.ti.com/audio Automotiveand Transportationwww.ti.com/automotive Amplifiers amplifier.ti.com Communicationsand Telecom www.ti.com/communications Data Converters dataconverter.ti.com Computers and Peripherals www.ti.com/computers DLP ® Products www.dlp.com Consumer Electronics www.ti.com/consumer-apps DSP dsp.ti.com Energyand Lighting www.ti.com/energy Clocksand Timers www.ti.com/clocks Industrial www.ti.com/industrial Interface interface.ti.com Medical www.ti.com/medical Logic logic.ti.com Security www.ti.com/security Power Mgmt power.ti.com Space,Avionicsand Defense www.ti.com/space-avionics-defense Microcontrollers microcontroller.ti.com Videoand Imaging www.ti.com/video RFID www.ti-rfid.com OMAP MobileProcessors www.ti.com/omap TIE2E Community e2e.ti.com WirelessConnectivity www.ti.com/wirelessconnectivity MailingAddress:Texas Instruments,PostOfficeBox 655303,Dallas,Texas 75265 Copyright© 2012,Texas InstrumentsIncorporated