OUT

OUT

FB

SS

GND

10

9

8

7

6

IN

IN

PG

BIAS

EN

1

2

3

4

5

Thermal

Pad

TPS74701

www.ti.com

SBVS099G – NOVEMBER 2007 – REVISED OCTOBER 2015

5 Pin Configuration and Functions

DRC Package

10-Pin SON

Top View

Pin Functions

PIN

I/O

DESCRIPTION

NAME

NO.

IN

1, 2

I

Input to the device.

Enable pin. Driving this pin high enables the regulator. Driving this pin low puts the regulator

EN

5

I

into shutdown mode. This pin must not be left unconnected.

SS

7

—

Soft-Start pin. A capacitor connected on this pin to ground sets the start-up time. If this pin is

left unconnected, the regulator output soft-start ramp time is typically 200

μs.

BIAS

4

I

Bias input voltage for error amplifier, reference, and internal control circuits.

PG

3

O

10 k

Ω to 1 MΩ should be connected from this pin to a supply of up to 5.5 V. The supply can

be higher than the input voltage. Alternatively, the PG pin can be left unconnected if output

monitoring is not necessary.

Feedback pin. The feedback connection to the center tap of an external resistor divider

FB

8

I

network that sets the output voltage. This pin must not be left floating.

OUT

9, 10

O

Regulated output voltage. A small capacitor (total typical capacitance

≥ 2.2 μF, ceramic) is

needed from this pin to ground to assure stability.

NC

N/A

I

No connection. This pin can be left floating or connected to GND to allow better thermal

contact to the top-side plane.

GND

6

I

Ground

Thermal Pad

—

I

Should be soldered to the ground plane for increased thermal performance.

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