1

2

3

4

5

15

14

13

12

11

OUT

IN

NR

EN

0P1V

0P2V

NC

SENSE

6P4V2

6P4V1

TPS7A47

SBVS204A – JUNE 2012 – REVISED JULY 2012

www.ti.com

PIN CONFIGURATIONS

RGW PACKAGE

5-mm × 5-mm QFN-20

(TOP VIEW)

PIN DESCRIPTIONS

PIN

NAME

NO.

DESCRIPTION

When connected to GND, this pin adds 0.1 V to the nominal output voltage of the regulator.

0P1V

12

Do not connect any voltage other than GND to this pin. If not used, leave this pin floating.

When connected to GND, this pin adds 0.2 V to the nominal output voltage of the regulator.

0P2V

11

Do not connect any voltage other than GND to this pin. If not used, leave this pin floating.

When connected to GND, this pin adds 0.4 V to the nominal output voltage of the regulator.

0P4V

10

Do not connect any voltage other than GND to this pin. If not used, leave this pin floating.

When connected to GND, this pin adds 0.8 V to the nominal output voltage of the regulator.

0P8V

9

Do not connect any voltage other than GND to this pin. If not used, leave this pin floating.

When connected to GND, this pin adds 1.6 V to the nominal output voltage of the regulator.

1P6V

8

Do not connect any voltage other than GND to this pin. If not used, leave this pin floating.

When connected to GND, this pin adds 3.2 V to the nominal output voltage of the regulator.

3P2V

6

Do not connect any voltage other than GND to this pin. If not used, leave this pin floating.

When connected to GND, this pin adds 6.4 V to the nominal output voltage of the regulator.

6P4V1

5

Do not connect any voltage other than GND to this pin. If not used, leave this pin floating.

When connected to GND, this pin adds 6.4 V to the nominal output voltage of the regulator.

6P4V2

4

Do not connect any voltage other than GND to this pin. If not used, leave this pin floating.

EN

13

This pin turns the regulator on and off.

GND

7

Ground

Input supply. A capacitor greater than or equal to 1 µF must be tied from this pin to ground to assure stability.

A 10-µF capacitor is recommended to be connected from IN to GND (as close to the device as possible) to reduce

IN

15, 16

circuit sensitivity to printed-circuit-board (PCB) layout, especially when long input traces or high source

impedances are encountered.

NC

2, 17-19

This pin can be left open or tied to any voltage between GND and IN.

Noise reduction pin. When a capacitor is connected from this pin to GND, RMS noise can be reduced to very low

levels. A capacitor greater than or equal to 10 nF must be tied from this pin to ground to assure stability. A 1-µF

NR

14

capacitor is recommended to be connected from NR to GND (as close to the device as possible) to maximize ac

performance and minimize noise.

Regulator output. A capacitor greater than or equal to 10 µF must be tied from this pin to ground to assure

OUT

1, 20

stability. A 47-µF ceramic output capacitor is highly recommended to be connected from OUT to GND (as close to

the device as possible) to maximize ac performance.

Control-loop error amplifier input. This pin must be connected to OUT.

SENSE

3

OUT is recommended to be connected at the point of load to maximize accuracy.

4

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