TPS77930

Manufacturer Part NumberTPS77930
DescriptionThe TPS779xx is a low-dropout regulator with integrated power-on reset
ManufacturerTexas Instruments
TPS77930 datasheet
 


Specifications of TPS77930

Iout(max)(a)0.2Vdo(typ)(mv)250
Iq(typ)(ma)0.09Vin(min)(v)2.7
Vin(max)(v)10Vout Adj(min)(v)3
Vout Adj(max)(v)3Accuracy(%)2
Output Capacitor TypeCeramicFixed Output Options(v)3
Vout(min)(v)3Vout(max)(v)3
Pin/package8MSOPRegulated Outputs(#)1
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250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE
Open Drain Power-On Reset With 220-ms
Delay
250-mA Low-Dropout Voltage Regulator
Available in 1.8-V, 2.5-V, 3-V, Fixed Output
and Adjustable Versions
Dropout Voltage Typically 200 mV
at 250 mA (TPS77930)
Ultralow 92- A Quiescent Current (Typ)
8-Pin MSOP (DGK) Package
Low Noise (55 V
) With No Bypass
rms
Capacitor (TPS77918)
2% Tolerance Over Specified Conditions
For Fixed-Output Versions
Fast Transient Response
Thermal Shutdown Protection
See the TPS773xx and TPS774xx Family of
Devices for Active Low Enable
description
The TPS779xx is a low-dropout regulator with
integrated power-on reset. The device is capable
of supplying 250 mA of output current with a
dropout of 200 mV (TPS77930). Quiescent
current is 92 A at full load dropping down to 1 A
when the device is disabled. The device is
optimized to be stable with a wide range of output
capacitors including low ESR ceramic (10 F) or
low capacitance (1 F) tantalum capacitors. The
device has extremely low noise output performance (55 V
TPS779xx is designed to have a fast transient response for larger load current changes.
The TPS779xx is offered in 1.8-V, 2.5-V, and 3-V fixed-voltage versions and in an adjustable version
(programmable over the range of 1.5 V to 5.5 V). Output voltage tolerance is 2% over line, load, and temperature
ranges. The TPS779xx family is available in 8-pin MSOP (DGK) packages.
Because the PMOS device behaves as a low-value resistor, the dropout voltage is very low (typically 200 mV
at an output current of 250 mA for 3.3 volt option) 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 92 A over the full range of output current, 0 mA to 250 mA). These two key
specifications yield a significant improvement in operating life for battery-powered systems.
The device is enabled when the EN pin is connected to a high-level input voltage. This LDO family also features
a sleep mode; applying a TTL low signal to EN (enable) shuts down the regulator, reducing the quiescent current
to less than 1 A at T
= 25 C.
J
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.
PRODUCTION 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.
TPS77901, TPS77918, TPS77925, TPS77930
SLVS283D – MARCH 2000 – REVISED OCTOBER 2000
FB/SENSE
RESET
EN
GND
JUNCTION TEMPERATURE
400
V I = 2.9 V
350
300
250
200
150
100
50
0
–50 –30
–10
T J – Junction Temperature – C
) without using any added filter capacitors.
rms
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TPS779xx
DGK PACKAGE
(TOP VIEW)
OUT
1
8
OUT
2
7
IN
3
6
4
5
IN
TPS77930
DROPOUT VOLTAGE
vs
I O = 0.25 A
I O = 0.15 A
I O = 0.05 A
10
30
50
70
90
110 130
Copyright
2000, Texas Instruments Incorporated
1

TPS77930 Summary of contents

  • Page 1

    ... The TPS779xx is a low-dropout regulator with integrated power-on reset. The device is capable of supplying 250 mA of output current with a dropout of 200 mV (TPS77930). Quiescent current full load dropping down when the device is disabled. The device is optimized to be stable with a wide range of output capacitors including low ESR ceramic ( low capacitance (1 F) tantalum capacitors ...

  • Page 2

    ... TPS77901, TPS77918, TPS77925, TPS77930 250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE SLVS283D – MARCH 2000 – REVISED OCTOBER 2000 description (continued) The TPS779xx features an integrated power-on reset, commonly used as a supply voltage supervisor (SVS), or reset output voltage. The RESET output of the TPS779xx initiates a reset in DSP, microcomputer, or microprocessor systems at power-up and in the event of an undervoltage condition ...

  • Page 3

    ... ref = 1.1834 V GND functional block diagram—fixed-voltage version ref = 1.1834 V TPS77901, TPS77918, TPS77925, TPS77930 SLVS283D – MARCH 2000 – REVISED OCTOBER 2000 220 ms Delay + 220 ms Delay _ GND POST OFFICE BOX 655303 DALLAS, TEXAS 75265 RESET OUT R1 FB/SENSE ...

  • Page 4

    ... TPS77901, TPS77918, TPS77925, TPS77930 250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE SLVS283D – MARCH 2000 – REVISED OCTOBER 2000 TPS779xx RESET timing diagram res † ‡ Threshold Voltage RESET Output Î Î Î Î Output Undefined Î ...

  • Page 5

    ... DGK 250 242.8 TPS77901, TPS77918, TPS77925, TPS77930 SLVS283D – MARCH 2000 – REVISED OCTOBER 2000 is below 95% of the regulated voltage. The open-drain output of the RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Page 6

    ... TPS77901, TPS77918, TPS77925, TPS77930 250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE SLVS283D – MARCH 2000 – REVISED OCTOBER 2000 recommended operating conditions † Input voltage Output voltage range Output current (see Note 1) Operating virtual junction temperature (see Note 1) † ...

  • Page 7

    ... Dropout voltage Dropout voltage Line transient response Load transient response Output voltage and enable pulse Equivalent series resistance TPS77901, TPS77918, TPS77925, TPS77930 SLVS283D – MARCH 2000 – REVISED OCTOBER 2000 = 10 F (unless otherwise noted) (continued) O TEST CONDITIONS I (RESET) = 300 decreasing Measured ...

  • Page 8

    ... TPS77901, TPS77918, TPS77925, TPS77930 250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE SLVS283D – MARCH 2000 – REVISED OCTOBER 2000 TPS77930 OUTPUT VOLTAGE vs OUTPUT CURRENT 3.002 3.001 3.0 2.999 2.998 0 50 100 150 I O – Output Current – mA Figure 2 TPS77930 OUTPUT VOLTAGE ...

  • Page 9

    ... 250 100 1k 10k 100k f – Frequency – Hz Figure 7 POST OFFICE BOX 655303 TPS77901, TPS77918, TPS77925, TPS77930 SLVS283D – MARCH 2000 – REVISED OCTOBER 2000 TPS779xx GROUND CURRENT vs JUNCTION TEMPERATURE 250 110 140 T J – Junction Temperature – C ...

  • Page 10

    ... TPS77901, TPS77918, TPS77925, TPS77930 250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE SLVS283D – MARCH 2000 – REVISED OCTOBER 2000 10 1 0.1 0.01 10 TPS77901 DROPOUT VOLTAGE vs INPUT VOLTAGE 400 350 125 C 300 –40 C 250 200 150 100 50 0 2.7 3.2 3 – Input Voltage – V ...

  • Page 11

    ... 250 mA 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 t – Time – ms Figure 14 POST OFFICE BOX 655303 TPS77901, TPS77918, TPS77925, TPS77930 SLVS283D – MARCH 2000 – REVISED OCTOBER 2000 LOAD TRANSIENT RESPONSE 250 0 0 –50 –100 0 0.2 0.4 0.6 0.8 0.9 1 Figure 13 LOAD TRANSIENT RESPONSE ...

  • Page 12

    ... TPS77901, TPS77918, TPS77925, TPS77930 250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE SLVS283D – MARCH 2000 – REVISED OCTOBER 2000 OUT EN GND Figure 17. Test Circuit for Typical Regions of Stability (Figures 18 through 21) (Fixed Output Options) 12 TYPICAL CHARACTERISTICS TPS77930 ...

  • Page 13

    ... Figure 20 † 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 TPS77901, TPS77918, TPS77925, TPS77930 SLVS283D – MARCH 2000 – REVISED OCTOBER 2000 TYPICAL CHARACTERISTICS TYPICAL REGION OF STABILITY † ...

  • Page 14

    ... TPS77901, TPS77918, TPS77925, TPS77930 250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE SLVS283D – MARCH 2000 – REVISED OCTOBER 2000 external capacitor requirements An input capacitor is not usually required; however, a bypass capacitor (0.047 F or larger) improves load transient response and noise rejection if the TPS779xx is located more than a few inches from the power supply. ...

  • Page 15

    ... To minimize the transient output droop, capacitors must have a low ESR and be large enough to support the minimum output voltage requirement Figure 23. – Correlation of Different ESRs and Their Influence to the Regulation of V Load Step From Low-to-High Output Current TPS77901, TPS77918, TPS77925, TPS77930 APPLICATION INFORMATION ) = V ). This means no current is flowing into the Figure 22. ...

  • Page 16

    ... TPS77901, TPS77918, TPS77925, TPS77930 250-mA LDO REGULATOR WITH INTEGRATED RESET IN A MSOP8 PACKAGE SLVS283D – MARCH 2000 – REVISED OCTOBER 2000 programming the TPS77901 adjustable LDO regulator The output voltage of the TPS77901 adjustable regulator is programmed using an external resistor divider as shown in Figure 24. The output voltage is calculated using: ...

  • Page 17

    ... Power dissipation resulting from quiescent current is negligible. Excessive power dissipation will trigger the thermal protection circuit. TPS77901, TPS77918, TPS77925, TPS77930 SLVS283D – MARCH 2000 – REVISED OCTOBER 2000 APPLICATION INFORMATION , and the actual dissipation, P D(max) A POST OFFICE BOX 655303 ...

  • Page 18

    ... MSOP TPS77925DGKG4 ACTIVE MSOP TPS77930DGK ACTIVE MSOP TPS77930DGKG4 ACTIVE MSOP (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. ...

  • Page 19

    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 ( not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak ...

  • Page 20

    TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing TPS77901DGKR MSOP DGK PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 8 2500 330.0 12.4 5.3 Pack Materials-Page 1 27-Jan-2012 ...

  • Page 21

    Device Package Type TPS77901DGKR MSOP PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm) DGK 8 2500 Pack Materials-Page 2 27-Jan-2012 Width (mm) Height (mm) 358.0 335.0 35.0 ...

  • Page 22

    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...