V62/03632-08XE

TPS76815-EP TI | Alldatasheet

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Technical content

TPS76815-EP, TPS76818-EP, TPS76825-EP, TPS76827-EP TPS76828-EP, TPS76830-EP TPS76833-EP, TPS76850-EP, TPS76801-EP FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS SGLS011 – MARCH 2003 1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 /C0068Controlled Baseline – One Assembly/Test Site, One Fabrication Site /C0068Extended Temperature Performance of –40°C to 125°C /C0068Enhanced Diminishing Manufacturing Sources (DMS) Support /C0068Enhanced Product Change Notification /C0068Qualification Pedigree† /C00681 A Low-Dropout Voltage Regulator 3.0-V, 3.3-V, 5.0-V Fixed Output and Adjustable Versions /C0068Dropout Voltage Down to 230 mV at 1 A (TPS76850) /C0068Ultralow 85 µA Typical Quiescent Current † 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. /C0068Fast Transient Response /C00682% Tolerance Over Specified Conditions for Fixed-Output Versions /C0068Open Drain Power Good (See TPS767xx for Power-On Reset With 200-ms Delay Option) /C006820-Pin TSSOP (PWP)PowerPAD  Package /C0068Thermal Shutdown Protection

description

This device is designed to have a fast transient response and be stable with 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 230 mV at an output current of 1 A for the TPS76850) 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 1 A). 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 less than 1 µA at TJ = 25°C. Power good (PG) is an active high output, which can be used to implement a power-on reset or a low-battery indicator. in an adjustable version (programmable over the range of 1.2 V to 5.5 V). Output voltage tolerance is specified as a maximum of 2% over line, load, and temperature ranges. The TPS768xx family is available in a 20-pin PWP package. Copyright  2003, 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 availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. NC – No internal connection GND/HSINK GND/HSINK GND NC EN IN IN NC GND/HSINK GND/HSINK GND/HSINK GND/HSINK NC NC PG FB/NC OUT OUT GND/HSINK GND/HSINK PWP PACKAGE (TOP VIEW) PowerPAD is a trademark of Texas Instruments.

TPS76815-EP, TPS76818-EP, TPS76825-EP, TPS76827-EP TPS76828-EP, TPS76830-EP TPS76833-EP, TPS76850-EP, TPS76801-EP FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS SGLS011 – MARCH 2003

2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

description (continued) TA – Free-Air Temperature – °C –40 0 20 120 103 –60 40 60 80 100 – Dropout Voltage – mVVDO TPS76833 DROPOUT VOLTAGE vs FREE-AIR TEMPERATURE 102 101 100 10–1 10–2 –20 140 IO = 1 A IO = 10 mA IO = 0C o = 10 µF t – Time – µs LOAD TRANSIENT RESPONSE I – Output Current – AO VO – Change in∆ Output Voltage – mV 0.5 300200100 400 500 700 600 800 900 10000 C o = 10 µF TA = 25°C 100 –50 –100

ORDERING INFORMATION

(V) PACKAGE ORDERABLE PART NUMBER TOP-SIDE MARKING TYP NUMBER MARKING

5.0 TPS76850QPWPREP 76850EP

3.3 TPS76833QPWPREP 76833EP

3.0 TPS76830QPWPREP † 76830EP †

2.8 TPS76828QPWPREP † 76828EP †

–40°Ct o1 2 5°C 2.7 TSSOP - PWP Tape and reel TPS76827QPWPREP † 76827EP † –40°C to 125°C 2.5 TSSOP - PWP Tape and reel TPS76825QPWPREP 76825EP

1.8 TPS76818QPWPREP 76818EP

1.5 TPS76815QPWPREP 76815EP

1.2 V to 5.5 V TPS76801QPWPREP 76801EP † This device is Product Preview. The TPS76801 is programmable using an external resistor divider (see application information). The PWP package is available taped and reeled. Note R suffix to the device type (e.g., TPS76801QPWPREP).

† See application information section for capacitor selection details. Figure 1. Typical Application Configuration (For Fixed Output Options)

TPS76815-EP, TPS76818-EP, TPS76825-EP, TPS76827-EP TPS76828-EP, TPS76830-EP TPS76833-EP, TPS76850-EP, TPS76801-EP FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS SGLS011 – MARCH 2003

4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

functional block diagram— fixed-voltage version Vref = 1.1834 V OUT EN GND IN PG Terminal Functions TERMINAL I/O DESCRIPTIONNAME NO. I/O DESCRIPTION GND/HSINK 1 Ground/heatsink GND/HSINK 2 Ground/heatsink GND 3 LDO ground NC 4 No connect EN 5 I Enable input IN 6 I Input IN 7 I Input NC 8 No connect GND/HSINK 9 Ground/heatsink GND/HSINK 10 Ground/heatsink GND/HSINK 11 Ground/heatsink GND/HSINK 12 Ground/heatsink OUT 13 O Regulated output voltage OUT 14 O Regulated output voltage FB/NC 15 I Feedback input voltage for adjustable device (no connect for fixed options) PG 16 O PG output NC 17 No connect NC 18 No connect GND/HSINK 19 Ground/heatsink GND/HSINK 20 Ground/heatsink

TPS76815-EP, TPS76818-EP, TPS76825-EP, TPS76827-EP TPS76828-EP, TPS76830-EP TPS76833-EP, TPS76850-EP, TPS76801-EP FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS SGLS011 – MARCH 2003 5POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)/C0276 † 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. DISSIPATION RATING TABLE – FREE-AIR TEMPERATURES PACKAGE AIR FLOW (CFM) TA < 25°C POWER RATING DERATING FACTOR ABOVE T A = 25°C TA = 70°C POWER RATING TA = 85°C POWER RATING PWP § 0 2.9 W 23.5 mW/°C 1.9 W 1.5 W PWP § 300 4.3 W 34.6 mW/ °C 2.8 W 2.2 W PWP ¶ 0 3 W 23.8 mW/°C 1.9 W 1.5 W PWP ¶ 300 7.2 W 57.9 mW/°C 4.6 W 3.8 W § This parameter is measured with the recommended copper heat sink pattern on a 1-layer PCB, 5-in × 5-in PCB, 1 oz. copper, 2-in × 2-in coverage (4 in2). ¶ This parameter is measured with the recommended copper heat sink pattern on a 8-layer PCB, 1.5-in × 2-in PCB, 1 oz. copper with layers 1, 2, 4, 5, 7, and 8 at 5% coverage (0.9 in2) and layers 3 and 6 at 100% coverage (6 in2). For more information, refer to TI technical brief SLMA002. recommended operating conditions MIN MAX UNIT Input voltage, VI# 2.7 10 V Output voltage range, VO 1.2 5.5 V Output current, IO (see Note 1) 0 1.0 A Operating virtual junction temperature, TJ (see Note 1) –40 125 °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.

TPS76815-EP, TPS76818-EP, TPS76825-EP, TPS76827-EP TPS76828-EP, TPS76830-EP TPS76833-EP, TPS76850-EP, TPS76801-EP FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS SGLS011 – MARCH 2003

6 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) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TPS76801 TPS76815 TJ = 25°C, 2.7 V < V IN < 10 V 1.5 TPS76815 TJ = –40°C to 125°C, 2.7 V < VIN < 10 V 1.470 1.530 TPS76818 TJ = 25°C, 2.8 V < V IN < 10 V 1.8 TPS76818 TJ = –40°C to 125°C, 2.8 V < VIN < 10 V 1.764 1.836 TPS76825 TJ = 25°C, 3.5 V < V IN < 10 V 2.5 TPS76825 TJ = –40°C to 125°C, 3.5 V < VIN < 10 V 2.450 2.550 Output voltage (10µA to 1 A load) TPS76827 TJ = 25°C, 3.7 V < V IN < 10 V 2.7 V(10 µA to 1 A load) (see Note 2) TPS76827 TJ = –40°C to 125°C, 3.7 V < VIN < 10 V 2.646 2.754 V (see Note 2) TPS76828 TJ = 25°C, 3.8 V < V IN < 10 V 2.8 TPS76828 TJ = –40°C to 125°C, 3.8 V < VIN < 10 V 2.744 2.856 TPS76830 TJ = 25°C, 4 V < V IN < 10 V 3.0 TPS76830 TJ = –40°C to 125°C, 4 V < VIN < 10 V 2.940 3.060 TPS76833 TJ = 25°C, 4.3 V < V IN < 10 V 3.3 TPS76833 TJ = –40°C to 125°C, 4.3 V < VIN < 10 V 3.234 3.366 TPS76850 TJ = 25°C, 6 V < V IN < 10 V 5.0 TPS76850 TJ = –40°C to 125°C, 6 V < VIN < 10 V 4.900 5.100 Quiescent current (GND current) 10 µA < IO < 1 A, T J = 25°C 85 AQuiescent current (GND current) EN = 0V, (see Note 2) IO = 1 A, T J = –40°C to 125°C 125 µA Output voltage line regulation (∆VO /VO ) (see Notes 2 and 3) VO + 1 V < VI ≤ 10 V, TJ = 25°C 0.01 %/V Load regulation 3 mV Output noise voltage (TPS76818) BW = 200 Hz to 100 kHz, C o = 10 µF, IC = 1 A, TJ = 25°C 55 µVrms Output current limit VO = 0 V 1.7 2 A Thermal shutdown junction temperature 150 °C Standby current EN = VI,T J = 25°C,

2.7 V < VI < 10 V 1 µA

Standby current EN = VI,T J = –40°C to 125°C

2.7 V < VI < 10 V 10 µA

FB input current TPS76801 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, C o = 10 µF, TJ = 25°C 60 dB NOTES: 2. Minimum IN operating voltage is 2.7 V or VO(typ) + 1 V, whichever is greater. Maximum IN voltage 10 V. 3. If VO ≤ 1.8 V then VImax = 10 V, VImin = 2.7 V: Line Reg. (mV)/C0043/C0466% /C0324V/C0467/C0032 V O /C0466V Imax /C00422.7 V/C0467 100 /C00321000 If VO ≥ 2.5 V then VImax = 10 V, VImin = VO + 1 V: Line Reg. (mV)/C0043/C0466% /C0324V/C0467/C0032 V O /C0466V Imax /C0042/C0466V O /C00411V /C0467/C0467 100 /C00321000

TPS76815-EP, TPS76818-EP, TPS76825-EP, TPS76827-EP TPS76828-EP, TPS76830-EP TPS76833-EP, TPS76850-EP, TPS76801-EP FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS SGLS011 – MARCH 2003 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) (continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Minimum input voltage for valid PG IO(PG) = 300 µA 1.1 V Trip threshold voltage VO decreasing 92 98 %V O PG Hysteresis voltage Measured at VO 0.5 %V OPG Output low voltage VI = 2.7 V, IO(PG) = 1 mA 0.15 0.4 V Leakage current V(PG) = 5 V 1 µA Input current (EN) EN = 0 V –1 0 1 AInput current (EN) EN = VI –1 1 µA TPS76828 IO = 1 A, TJ = 25°C 500 TPS76828 IO = 1 A, TJ = –40°C to 125°C 825 TPS76830 IO = 1 A, TJ = 25°C 450 Dropout voltage TPS76830 IO = 1 A, TJ = –40°C to 125°C 675 mVDro out voltage (see Note 4) TPS76833 IO = 1 A, TJ = 25°C 350 mV TPS76833 IO = 1 A, TJ = –40°C to 125°C 575 TPS76850 IO = 1 A, TJ = 25°C 230 TPS76850 IO = 1 A, TJ = –40°C to 125°C 380 NOTE 4: IN voltage equals VO (typ) – 100 mV; TPS76801 output voltage set to 3.3 V nominal with external resistor divider. TPS76815, TPS76818, TPS76825, and TPS76827 dropout voltage limited by input voltage range limitations (i.e., TPS76830 input voltage needs to drop to 2.9 V for purpose of this test). TYPICAL 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, 9 Power supply ripple rejection vs Frequency 10 Output spectral noise density vs Frequency 11 Input voltage (min) vs Output voltage 12 Zo Output impedance vs Frequency 13 VDO Dropout voltage vs Free-air temperature 14 Line transient response 15, 17 Load transient response 16, 18 VO Output voltage vs Time 19 Dropout voltage vs Input voltage 20 Equivalent series resistance (ESR) vs Output current 22 – 25

TPS76815-EP, TPS76818-EP, TPS76825-EP, TPS76827-EP TPS76828-EP, TPS76830-EP TPS76833-EP, TPS76850-EP, TPS76801-EP FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS SGLS011 – MARCH 2003

8 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

IO – Output Current – A TPS76833 OUTPUT VOLTAGE vs OUTPUT CURRENT 3.2830 3.2815 3.2800 0.1 0.3 3.2825 3.2820 3.2810 0.2 0.8 1 3.2835 0 0.9 – Output Voltage – VVO 3.2805 0.4 0.5 0.6 0.7 VI = 4.3 V TA = 25°C Figure 3 IO – Output Current – A 1.4975 1.4960 1.4950 1.4970 1.4965 1.4955 1.4985 – Output Voltage – VVO TPS76815 OUTPUT VOLTAGE vs OUTPUT CURRENT 1.4980 VI = 2.7 V TA = 25°C Figure 4 IO – Output Current – A TPS76825 OUTPUT VOLTAGE vs OUTPUT CURRENT 2.4955 2.4940 2.4920 0.1 0.3 2.4950 2.4945 2.4935 0.2 0.4 0.6 2.4960 0 0.5 – Output Voltage – VVO VI = 3.5 V TA = 25°C 2.4930 2.4925 0.80.7 0.9 1 Figure 5 TA – Free-Air Temperature – °C TPS76833 OUTPUT VOLTAGE vs FREE-AIR TEMPERATURE – Output Voltage – VVO 3.31 3.28 3.25 –40 0 3.30 3.29 3.27 –20 100 140 3.32 –60 120 3.26 20 40 60 80 VI = 4.3 V IO = 1 A IO = 1 mA

TPS76815-EP, TPS76818-EP, TPS76825-EP, TPS76827-EP TPS76828-EP, TPS76830-EP TPS76833-EP, TPS76850-EP, TPS76801-EP FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS SGLS011 – MARCH 2003

10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TA – Free-Air Temperature – °C TPS76815 GROUND CURRENT vs FREE-AIR TEMPERATURE Ground Current – Aµ –40 0–20 100–60 120 20 40 60 80 140 VI = 2.7 V IO = 1 A 100 IO = 1 mA IO = 500 mA 100k10k PSRR – Power Supply Ripple Rejection – dB f – Frequency – Hz POWER SUPPLY RIPPLE REJECTION vs FREQUENCY –10 TPS76833 1k10010 1M VI = 4.3 V C o = 10 µF IO = 1 A TA = 25°C Figure 10 TPS76833 OUTPUT SPECTRAL NOISE DENSITY vs FREQUENCY f – Frequency – Hz 102 103 104 105 10–5 10–6 10–8 10–7 IO = 7 mA IO = 1 A VI = 4.3 V C o = 10 µF TA = 25°C V HzOutput Spectral Noise Density – µ Figure 11

TPS76815-EP, TPS76818-EP, TPS76825-EP, TPS76827-EP TPS76828-EP, TPS76830-EP TPS76833-EP, TPS76850-EP, TPS76801-EP FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS SGLS011 – MARCH 2003

12 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

VO – Change in 3.7 2.7 TPS76815 LINE TRANSIENT RESPONSE VI t – Time – µs 06 0 4020 80 100 140 120 160 180 200 – Input Voltage – V∆ Output Voltage – mV C o = 10 µF TA = 25°C –10 Figure 16 t – Time – µs TPS76815 LOAD TRANSIENT RESPONSE I – Output Current – AO VO – Change in∆ Output Voltage – mV C o = 10 µF TA = 25°C 0.5 0 300 200100 400 500 700 600 800 900 1000 100 –50 –100 Figure 17 TPS76833 LINE TRANSIENT RESPONSE t – Time – µs VO – Change in VI – Input Voltage – V∆ Output Voltage – mV 5.3 604020 80 100 140 120 160 180 200 C o = 10 µF TA = 25°C 4.3 –10 Figure 18 t – Time – µs TPS76833 LOAD TRANSIENT RESPONSE I – Output Current – AO VO – Change in∆ Output Voltage – mV 0.5 300200100 400 500 700 600 800 900 10000 C o = 10 µF TA = 25°C 100 –50 –100

TPS76815-EP, TPS76818-EP, TPS76825-EP, TPS76827-EP TPS76828-EP, TPS76830-EP TPS76833-EP, TPS76850-EP, TPS76801-EP FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS SGLS011 – MARCH 2003

14 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

0.1 0 200 400 600 800 1000 TYPICAL REGION OF STABILITY EQUIVALENT SERIES RESISTANCE † vs OUTPUT CURRENT IO – Output Current – mA ESR – Equivalent Series Resistance – Ω VO = 3.3 V C o = 4.7 µF VI = 4.3 V TA = 25°C Region of Stability Region of Instability Figure 23 TYPICAL REGION OF STABILITY EQUIVALENT SERIES RESISTANCE † vs OUTPUT CURRENT IO – Output Current – mA ESR – Equivalent Series Resistance – Ω 0.1 0 200 400 600 800 1000 VO = 3.3 V C o = 4.7 µF VI = 4.3 V TJ = 125°C Region of Stability Region of Instability Figure 24 0.1 0 200 400 600 800 1000 TYPICAL REGION OF STABILITY EQUIVALENT SERIES RESISTANCE † vs OUTPUT CURRENT IO – Output Current – mA ESR – Equivalent Series Resistance – Ω Region of Instability Region of Stability VO = 3.3 V C o = 22 µF VI = 4.3 V TA = 25°C ESR – Equivalent Series Resistance – Ω Figure 25 TYPICAL REGION OF STABILITY EQUIVALENT SERIES RESISTANCE † vs OUTPUT CURRENT 0.1 0 200 400 600 800 1000 IO – Output Current – mA VO = 3.3 V C o= 22 µF VI = 4.3 V TJ = 125°C Region of Stability Region of Instability † Equivalent series resistance (ESR) refers to the total series resistance, including the ESR of the capacitor, any series resistance added externally, and PWB trace resistance to Co.

TPS76815-EP, TPS76818-EP, TPS76825-EP, TPS76827-EP TPS76828-EP, TPS76830-EP TPS76833-EP, TPS76850-EP, TPS76801-EP FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS SGLS011 – MARCH 2003 15POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

APPLICATION INFORMATION

The TPS768xx features 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 TPS768xx uses 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 TPS768xx quiescent current remains low even when the regulator drops out, eliminating both problems. The TPS768xx 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 TPS768xx 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 shown in Figure 27. 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 TPS768xx 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 TPS768xx requires 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 above. Most of the commercially available 10 µF surface-mount ceramic capacitors, including devices from Sprague and Kemet, meet the ESR requirements stated above.

TPS76815-EP, TPS76818-EP, TPS76825-EP, TPS76827-EP TPS76828-EP, TPS76830-EP TPS76833-EP, TPS76850-EP, TPS76801-EP FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS SGLS011 – MARCH 2003

16 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

external capacitor requirements (continued) PG OUT OUT IN IN EN GND VI 0.1 µF PG VO 10 µF TPS768xx C o 250 kΩ Figure 26. Typical Application Circuit (Fixed Versions) Figure 27. TPS76801 Adjustable LDO Regulator Programming

TPS76815-EP, TPS76818-EP, TPS76825-EP, TPS76827-EP TPS76828-EP, TPS76830-EP TPS76833-EP, TPS76850-EP, TPS76801-EP FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS SGLS011 – MARCH 2003 17POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 The TPS768xx features a power-good (PG) 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 PG output transistor turns on, taking the signal low. The open-drain output requires a pullup resistor. If not used, it can be left floating. PG can be used to drive power-on reset circuitry or used as a low-battery indicator. PG does not assert itself when the regulated output voltage falls out of the specified 2% tolerance, but instead reports an output voltage low, relative to its nominal regulated value. regulator protection The TPS768xx PMOS-pass transistor has 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 TPS768xx also features internal current limiting and thermal protection. During normal operation, the TPS768xx limits 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: P D(max) /C0043 TJmax /C0042TA R /C0113JA Where: TJmax is the maximum allowable junction temperature. TA is the ambient temperature. R θJA is the thermal resistance junction-to-ambient for the package, i.e., 172°C/W for the 8-terminal SOIC and 32.6°C/W for the 20-terminal PWP with no airflow. The regulator dissipation is calculated using: P D /C0043/C0466V I/C0042V O /C0467/C0032IO Power dissipation resulting from quiescent current is negligible. Excessive power dissipation will trigger the thermal protection circuit.

TPS76815-EP, TPS76818-EP, TPS76825-EP, TPS76827-EP TPS76828-EP, TPS76830-EP TPS76833-EP, TPS76850-EP, TPS76801-EP FAST-TRANSIENT-RESPONSE 1-A LOW-DROPOUT VOLTAGE REGULATORS SGLS011 – MARCH 2003

18 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

PWP (R-PDSO-G) PowerPAD  PLASTIC SMALL-OUTLINE 4073225/F 10/98 0,50 0,75 0,25 0,15 NOM Thermal Pad (See Note D) Gage Plane 2824 7,70 7,90 6,40 6,60 9,60 9,80 6,60 6,20 0,19 4,50 4,30 0,15 A 0,30 1,20 MAX 1614 5,10 4,90 PINS 4,90 5,10 DIM A MIN A MAX 0,05 Seating Plane 0,65 0,10 M0,10 0°–/C02578°

20 PINS SHOWN

NOTES: A. All linear dimensions are in millimeters. B. This drawing is subject to change without notice. C. Body dimensions do not include mold flash or protrusions. D. The package thermal performance may be enhanced by bonding the thermal pad to an external thermal plane. This pad is electrically and thermally connected to the backside of the die and possibly selected leads. E. Falls within JEDEC MO-153 PowerPAD is a trademark of Texas Instruments Incorporated.

Orderable Device Status(1) Package Type Package Drawing Pins Package Qty Eco Plan(2) Lead/Ball FinishMSL Peak Temp (3) TPS76801QPWPREP ACTIVE HTSSOP PWP 20 2000 None Call TI Level-1-220C-UNLIM TPS76815QPWPREP ACTIVE HTSSOP PWP 20 2000 None Call TI Level-1-220C-UNLIM TPS76818QPWPREP ACTIVE HTSSOP PWP 20 2000 None Call TI Level-1-220C-UNLIM TPS76825QPWPREP ACTIVE HTSSOP PWP 20 2000 None Call TI Level-1-220C-UNLIM TPS76833QPWPREP ACTIVE HTSSOP PWP 20 2000 None Call TI Level-1-220C-UNLIM TPS76850QPWPREP ACTIVE HTSSOP PWP 20 2000 None Call TI Level-1-220C-UNLIM V62/03632-01XE ACTIVE HTSSOP PWP 20 2000 None Call TI Level-1-220C-UNLIM V62/03632-02XE ACTIVE HTSSOP PWP 20 2000 None Call TI Level-1-220C-UNLIM V62/03632-03XE ACTIVE HTSSOP PWP 20 2000 None Call TI Level-1-220C-UNLIM V62/03632-04XE ACTIVE HTSSOP PWP 20 2000 None Call TI Level-1-220C-UNLIM V62/03632-08XE ACTIVE HTSSOP PWP 20 2000 None Call TI Level-1-220C-UNLIM V62/03632-09XE ACTIVE HTSSOP PWP 20 2000 None Call TI Level-1-220C-UNLIM (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 - May not be currently available - please checkhttp://www.ti.com/productcontentfor the latest availability information and additional product content details. None: Not yet available Lead (Pb-Free). 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. Green (RoHS & no Sb/Br):TI defines "Green" to mean "Pb-Free" and in addition, uses package materials that do not contain halogens, including bromine (Br) or antimony (Sb) above 0.1% of total product weight. (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDECindustry 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. PACKAGE OPTION ADDENDUM www.ti.com 7-Mar-2005 Addendum-Page 1

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