TPS5511

3-CHANNEL POWER SUPPLY SUPERVISOR

SLVS170 – AUGUST 1998

1

POST OFFICE BOX 655303

5 V, 3.3 V, and 12 V

Output Stage

Power Good Input, 5 V and 3.3 V

from 4 V to 15 V

description

The TPS5511 is designed to minimize the external components of personal-computer switching power supply

systems. It provides protection circuits, power good indicator, fault protection output (FPO), and PSON control.

condition is detected, the PGO (power good output) is asserted low and FPO is latched high. PSON from low

to high resets the protection latch. There is a 2.3-ms turn-off delay from PSON to FPO. There is no delay during

turn on.

Power good feature monitors PGI, 5 V and 3.3 V under voltages and issues a power good signal when they are

ready.

PGI

GND

PSON

FPO

PGO

VCC

VS5

VS33

0.5 V

Drop

PGI

PGO

12 V

VSB

5 V

3.3 V

PSON

5 VSB

8

7

5

6

1

2

3

4

TPS5511

Figure 1. TPS5511 Typical Application

Copyright

© 1998, Texas Instruments Incorporated

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.

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.

1

2

3

4

8

7

6

5

PGI

GND

FPO

PSON

PGO

VS5

VS33

D OR P PACKAGE

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