TPS71H48 datasheet(2/46 Pages) TI1

2 / 46 page

TPS71H01Q, TPS71H33Q, TPS71H48Q, TPS71H50Q

LOW DROPOUT VOLTAGE REGULATORS

SLVS152B − NOVEMBER 1996 − REVISED AUGUST 2002

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

description (continued)

0.1

0.05

0.05 0.1 0.15 0.2 0.25 0.3

0.15

0.2

0.25

0.35 0.4 0.45 0.5

IO − Output Current − A

TA = 25°C

TPS71H48

TPS71H50

TPS71H33

Figure 1. Dropout Voltage Versus Output Current

Power good (PG) reports low output voltage and can be used to implement a power-on reset or a low-battery

indicator.

The TPS71Hxx is offered in 3.3-V, 4.85-V, and 5-V fixed-voltage versions and in an adjustable version

(programmable over the range of 1.2 V to 9.75 V). Output voltage tolerance is specified as a maximum of 2%

over line, load, and temperature ranges (3% for adjustable version). The TPS71Hxx family is available in a

TSSOP (20-pin) thermally enhanced surface-mount power package. The package has an innovative thermal

pad that, when soldered to the printed-wiring board (PWB), enables the device to dissipate several watts of

power (see Thermal Information section). Maximum height of the package is 1.2 mm.

AVAILABLE OPTIONS

OUTPUT VOLTAGE

(V)

TSSOP

(PWP)

MIN

TYP

MAX

(PWP)

4.9

5.1

TPS71H50QPWPLE

4.75

4.85

4.95

TPS71H48QPWPLE

−55

°C to 150°C

3.23

3.3

3.37

TPS71H33QPWPLE

−55 C to 150 C

Adjustable†

1.2 V to 9.75 V

TPS71H01QPWPLE

† The PWP package is only available left-end taped and reeled, as indicated

by the LE suffix on the device type. The TPS71H01Q is programmable using

an external resistor divider (see application information).

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