RT2810A/B

2

DS2810A/B-06 November 2016

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Copyright 2016 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

Functional Pin Description

Pin Configurations

(TOP VIEW)

UQFN-16JL 3x3 (FC)

Marking Information

RT

PVCC

AGND

FB

SW

SW

SW

BOOT

6

15

12

11

10

9

1

2

3

4

13

16

7

5

14

8

7G= : Product Code

YMDNN : Date Code

RT2810ALGQUF

7E= : Product Code

YMDNN : Date Code

RT2810BLGQUF

7H=YM

DNN

7H= : Product Code

YMDNN : Date Code

RT2810AHGQUF

7F= : Product Code

YMDNN : Date Code

RT2810BHGQUF

7G=YM

DNN

7E=YM

DNN

7F=YM

DNN

Pin No.

Pin Name

Pin Function

1

AGND

Analog Ground.

2

FB

Feedback Voltage Input. It is used to regulate the output of the converter to a set

value via an external resistive voltage divider. The feedback reference voltage is

0.7V typically.

3

PVCC

Internal Regulator Output. Connect a 1

F capacitor to GND to stabilize output

voltage.

4

RT

An External Timing Resistor Adjusts the Switching Frequency of the Device.

5

SS

Soft-Start Time Setting. An external capacitor should be connected between this

pin and GND.

6

VIN

Power Input. The input voltage range is from 4.5V to 18V. Must bypass with a

suitably large (

10F x 2) ceramic capacitor.

7

GND

Ground.

8

PGOOD

Power Good Indicator Open-Drain Output.

9

BOOT

Bootstrap. This capacitor is needed to drive the power switch's gate above the

supply voltage. It is connected between SW and BOOT pins to form a floating

supply across the power switch driver. A 0.1

F capacitor is recommended for use.

10 to 14

SW

Switch Node. Connect this pin to an external L-C filter.

15

EN

Enable Control Input. A logic-high enables the converter; a logic-low forces the IC

into shutdown mode reducing the supply current to less than 10

A.

16

RLIM

An External Resistor Adjusts the Current Limit of the Device.