TPS77301, TPS77318, TPS77327, TPS77328, TPS77333 WITH RESET OUTPUT

TPS77401, TPS77418, TPS77427, TPS77428, TPS77433 WITH POWER GOOD OUTPUT

250-mA LDO REGULATORS WITH INTEGRATED RESET OR PG

SLVS281A – FEBRUARY 2000 – REVISED MARCH 2000

1

POST OFFICE BOX 655303

Delay (TPS773xx)

Output (TPS774xx)

Output and Adjustable Versions

at 250 mA (TPS77333, TPS77433)

Filter (Bypass) Capacitor (TPS77318,

TPS77418)

For Fixed-Output Versions

Active High Enable

description

The TPS773xx and TPS774xx are low dropout

regulators with integrated power-on reset and

power good (PG) function respectively. These

devices are capable of supplying 250 mA of output

current with a dropout of 200 mV (TPS77333,

TPS77433). Quiescent current is 92

µA at full load

dropping down to 1

µA when device is disabled.

These devices are optimized to be stable with a

wide range of output capacitors including low ESR

ceramic (10

µF) or low capacitance (1 µF)

tantalum capacitors. These devices have ex-

tremely low noise output performance (55

without

using

any

added

filter

capacitors.

TPS773xx and TPS774xx are designed to have

fast transient response for larger load current

changes.

The TPS773xx or TPS774xx is offered in 1.8-V, 2.7-V, 2.8-V and 3.3-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 TPS773xx and TPS774xx families are available in 8-pin MSOP (DGK)

packages.

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.

This document contains information on products in more than one phase

of development. The status of each device is indicated on the page(s)

specifying its electrical characteristics.

Copyright

© 2000, Texas Instruments Incorporated

FB/SENSE

PG

EN

GND

OUT

OUT

IN

IN

TPS774xx

DGK PACKAGE

(TOP VIEW)

TPS77x33

DROPOUT VOLTAGE

vs

JUNCTION TEMPERATURE

150

100

50

0

–40

0

40

80

200

250

300

120

140

TJ – Junction Temperature – °C

IO = 250 mA

IO = 10 mA

IO = 0 A

FB/SENSE

RESET

EN

GND

OUT

OUT

IN

IN

TPS773xx

DGK PACKAGE

(TOP VIEW)

1

2

3

4

8

7

6

5

1

2

3

4

8

7

6

5