TPS76301

IN

EN

1

1 µF

VI

3

•2 V

”0.5 V

GND

2

FB

OUT

4

5

R1

R2

Vo

CSR=1 Ÿ

4.7 µF

+

13

TPS763

www.ti.com

SLVS181J – DECEMBER 1998 – REVISED SEPTEMBER 2019

Product Folder Links: TPS763

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Copyright © 1998–2019, Texas Instruments Incorporated

13 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

13.1 Application Information

The TPS763xx low-dropout (LDO) regulators are part of a family of regulators which have been optimized for use

in battery-operated equipment and feature extremely low dropout voltages, low quiescent current (140 µA), and

an enable input to reduce supply currents to less than 2 µA when the regulator is turned off.

13.2 Typical Application

Figure 20. Typical Application Circuit

13.2.1 Design Requirements

Although not required, TI recommends a 0.047-µF or larger ceramic bypass input capacitor, connected between

IN and GND and placed close to the TPS763xx, to improve transient response and noise rejection. A higher-

value electrolytic input capacitor may be necessary if large, fast-rise-time load transients are anticipated and the

device is placed several inches from the power source. Follow the programming guidelines from Table 2.

(1)

1% values shown

Table 2. Output Voltage Programming Guide

OUTPUT VOLTAGE (V)

DIVIDER RESISTANCE (kΩ)(1)

R1

R2

2.5

187

169

3.3

301

169

3.6

348

169

4

402

169

5

549

169

6.45

750

169