EN

NR/SS

PG

FB

IN

IN

BIAS

GND

OUT

OUT

1

2

3

4

5

11

10

9

8

7

3

TPS7A52

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SBVS295 – NOVEMBER 2019

Product Folder Links: TPS7A52

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5 Pin Configuration and Functions

RPS Package

2.2-mm × 2.5-mm, 12-Pin VQFN

Top View

Pin Functions

PIN

DESCRIPTION

NAME

NO.

I/O

BIAS

5

I

BIAS supply voltage. This pin enables the use of low-input voltage, low-output (LILO) voltage conditions

this pin and ground. If not used, this pin must be left floating or tied to ground.

EN

3

I

Enable pin. Driving this pin to logic high enables the device; driving this pin to logic low disables the

device. If enable functionality is not required, this pin must be connected to IN or BIAS.

FB

9

I

Feedback pin connected to the error amplifier. Although not required, a 10-nF feed-forward capacitor from

FB to OUT (as close to the device as possible) is recommended to maximize ac performance. The use of

a feed-forward capacitor can disrupt PG (power good) functionality.

GND

6, 7, 12

—

Ground pin. These pins must be connected to ground, the thermal pad, and each other with a low-

impedance connection.

IN

1, 2

I

Input supply voltage pin. A 10-µF or larger ceramic capacitor (5 µF or greater of capacitance) from IN to

ground is recommended to reduce the impedance of the input supply. Place the input capacitor as close

to the input as possible.

NR/SS

4

—

Noise-reduction and soft-start pin. Connecting an external capacitor between this pin and ground reduces

reference voltage noise and also enables the soft-start function. Although not required, a 10-nF or larger

capacitor is recommended to be connected from NR/SS to GND (as close to the pin as possible) to

maximize ac performance.

OUT

10, 11

O

Regulated output pin. A 47-µF or larger ceramic capacitor (25 µF or greater of capacitance) from OUT to

ground is required for stability and must be placed as close to the output as possible. Minimize the

impedance from the OUT pin to the load.

PG

8

O

the target. The use of a feed-forward capacitor can disrupt PG (power good) functionality.