RT9203 datasheet(4/16 Pages) RICHTEK

No de pièce	RT9203

Description	Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller

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Fabricant	RICHTEK [Richtek Technology Corporation]

Site Internet	http://www.richtek.com

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4 / 16 page

RT9203/A

Preliminary

4

DS9203/A-10 March 2007

www.richtek.com

Function Block Diagram

GND

VCC

RT9203/A

BOOT

C

VCC

1uF

C

BOOT

0.1uF

C

OUT

1000uF

L

5uH

MU

D

G

S

ML

D

G

S

C1

1uF

C2

470uF

GND Return

Layout Placement

Layout Notes

1. Put C1 & C2 to be near the MU drain and ML source nodes.

2. Put RT9203/A to be near the COUT

3. Put CBOOT as close as to BOOT pin

4. Put CVCC as close as to VCC pin

0.8

Reference

Power on

Reset

Soft Start

+

-

OVP

+

-

UVP

1V

+

-

Error

0.8V

0.5V

Error

Amplifier

+

-

PWM

300kHz

Oscillator

Control

Logic

VCC

6.0V

Regulation

GND

FB

VCC

BOOT

UGATE

LGATE

+

-

UVP

+

-

+

SS

LDO

DRV

FBL

VCC

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RT9203 Fiches technique(PDF) 4 Page - Richtek Technology Corporation

RT9203 Fiches technique(HTML) 4 Page - Richtek Technology Corporation

Numéro de pièce similaire - RT9203

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