RT7310

Copyright © 2014 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

DS7310-00

October

2014

2

Ordering Information

RT7310

Package Type

E : SOT-23-6

Lead Plating System

G : Green (Halogen Free and Pb Free)

Note :

Richtek products are :



RoHS compliant and compatible with the current

requirements of IPC/JEDEC J-STD-020.



Suitable for use in SnPb or Pb-free soldering processes.

Marking Information

3K=DNN

3K= : Product Code

DNN : Date Code

Pin Configuration

(TOP VIEW)

GND VDD GD

COMP ZCD CS

4

2

3

5

6

SOT-23-6

Functional Pin Description

Pin No.

Pin Name

Pin Function

1

GND

Ground of the Controller.

2

VDD

3

GD

Gate Driver Output for External Power MOSFET.

4

CS

Current Sense Input. Connect this pin to the current sense resistor.

5

ZCD

Zero Current Detection Input. This pin is used to sense the voltage at auxiliary

winding of the transformer for detecting demagnetization time of the magnetizing

inductance.

6

COMP

Compensation Node. Output of the internal trans-conductance amplifier.