DIA7976

Version 1.9, Apr 2025

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© 2025 Dioo Microcircuits Co., Ltd. Jiangsu

2

Pin Name

Description

EN

Enable pin. Drive EN greater than VEN(HI) to turn on the regulator. Drive EN less than VEN(LO) to put the

low-dropout regulator (LDO) into shutdown mode.

FB

This pin is used as an input to the control loop error amplifier and is used to set the output voltage of the

LDO.

GND

Ground pin.

IN

Input pin. For best transient response and to minimize input impedance, use the recommended value or

larger ceramic capacitor from IN to ground as listed in the Recommended Operating Conditions table.

Place the input capacitor as close to the output of the device as possible.

NC

No internal connection. Ground this pin for better thermal performance.

OUT

Regulated output voltage pin. A capacitor is required from OUT to ground for stability. For best transient

response, use the nominal recommended value or larger ceramic capacitor from OUT to ground; Place the

output capacitor as close to the output of the device as possible.

PG

Power-good output. Available in open-drain and push-pull topologies. A pull-up resistor is only required for

the open-drain type. For the open-drain version (DIA7976AO and DIA7976BO), if the power-good

functionality is not being used, ground this pin or leave floating. For the push-pull version (DIA7976AP and

DIA7976BP), if the power-good functionality is not being used, leave this pin floating.

Thermal Pad

The thermal pad is left floating. Connect to the GND plane for improved thermal performance.