Table 6-1. Pin Functions (continued)

PIN

TYPE(1)

DESCRIPTION

NO.

NAME

8

FB

I

Feedback input. Connect the midpoint of the feedback resistor divider to this pin. Connect the upper

resistor (RFBT) of the feedback divider to VOUT at the desired point of regulation. Connect the lower

resistor (RFBB) of the feedback divider to AGND. Do not leave open or connect to ground.

9, 10

VOUT1,

VOUT2

P

Output voltage. These pins are connected to the internal buck inductor. Connect these pins to the output

load and connect external output capacitors between these pins and PGND.

12

RT

I

Frequency setting pin used to set the switching frequency between 200 kHz and 2.2 MHz by placing an

external resistor from RT to AGND. Connect to VCC for 400 kHz. Connect to ground for 2.2 MHz. Do not

leave open.

13

PG

O

Open-drain power-good monitor output that asserts low if the FB voltage is not within the specified

window thresholds. A 10-kΩ to 100-kΩ pullup resistor to a suitable voltage is required . If not used, PG

can be left open or connected to GND.

16

NC

—

No connection. Tie to GND or leave open.

17

EN

I

Precision enable input to regulator. High = on, low = off. Can be connected to VIN. Precision enable

allows the pin to be used as an adjustable UVLO. Do not float

19, 20

PGND

G

Power ground. This is the return current path for the power stage of the device. Connect these pads to

the input supply return, the load return, and the capacitors associated with the VIN and VOUT pins. See

Layout Example for a recommended layout.

(1)

P = Power, G = Ground, I = Input, O = Output

TLVM13610

SLVSH63 – FEBRUARY 2023

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