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DS9085A-02 March 2019

www.richtek.com

RT9085A

©

Copyright 2019 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

Functional Pin Description

Pin No.

Pin Name

Pin Function

A1

VOUT

Regulator output pin. A 10

F capacitor should be placed directly at this pin.

A2

VIN

Regulator input pin. A 4.7

F capacitor should be placed directly at this pin.

B1

ADJ (ADJ devices)

Adjustable output voltage feedback input pin.

SNS (Fix Vlot devices) Output voltage sensing input, connect to the output terminal on the PCB.

B2

EN

Chip enable pin. Pulling this pin below 0.54V turns the regulator off,

reducing the quiescent current to a fraction of its operating value. This pin

must not be left unconnected, connect to BIAS if not being used.

C1

GND

Ground pin. This pin must be connected to ground.

C2

BIAS

stabilization of internal control circuitry. Apply RC filter consists of (500 to

1k)

 + 1F at the pin input.

Ordering Information

Product No.

Nominal Output

Voltage

Package

RT9085A-07WSC

0.70V

WL-CSP-6B 0.8x1.2 (BSC)

RT9085A-0GWSC

0.75V

RT9085A-08WSC

0.80V

RT9085A-0HWSC

0.85V

RT9085A-09WSC

0.90V

RT9085A-0JWSC

0.95V

RT9085A-10WSC

1.00V

RT9085A-1KWSC

1.05V

RT9085A-11WSC

1.10V

RT9085A-1AWSC

1.15V

RT9085A-12WSC

1.20V

RT9085A-1BWSC

1.25V

RT9085A-13WSC

1.30V

RT9085A-15WSC

1.50V

RT9085A-18WSC

1.80V

RT9085AWSC

Adjustable