Datasheet > RT9603

RT9603

更新时间： 2024-09-23 03:29:15

品牌	Logo	应用领域
立锜 - RICHTEK		驱动器
页数	文件大小	规格书
10页	117K
描述
Synchronous-Rectified Buck MOSFET Drivers

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RT9603 数据手册

Preliminary

RT9603

Synchronous-Rectified Buck MOSFET Drivers

General Description

Features

l Drives Two N-Channel MOSFETs

l Adaptive Shoot-Through Protection

l Supports High Switching Frequency

- Fast Output Rise Time

The RT9603 is a high frequency, dual MOSFET drivers

specifically designed to drive two power N-Channel

MOSFETs in a synchronous-rectified buck converter

topology. The device combined with the RT924x series

of multi-phase PWM controllers and MOSFETs form a

complete core voltage regulator solution for advanced

microprocessors.

- Propagation Delay 40ns

l Tri-State Input for Bridge Shutdown

l Supply Over-Voltage Protection above Maximum

Voltage Rating

The output drivers in the RT9603 can efficiently switch

power MOSFETs at frequencies up to 500kHz. It shall be

taken into account the thermal consideration when the

switching frequency above 500kHz. Each driver is

capable of driving a 3nF load in 30/40ns rise/fall time with

fast propagation delay from input transition to the gate of

the power MOSFET. The device implements boot-

strapping on the upper gate with only an external capacitor

and a diode required. This reduces implementation

complexity and allows the use of higher performance,

cost effective N-Channel MOSFETs.

l Supply Under-Voltage Protection

l Upper MOSFET Direct Shorted Protection

l Small SOP-8 Package

Applications

l Core Voltage Supplies for Intel Pentium^Ò4, AMD^Ò

Athlon^TMMicroprocessors

l High Frequency Low Profile DC-DC Converters

l High Current Low Voltage DC-DC Converters

l IA Equipments

Both drivers incorporate adaptive shoot-through protect-

ion to prevent upper and lower MOSFETs from conduct-

ing simultaneously and shorting the input supply.

Pin Configurations

An unique feature of the RT9603 driver is the addition of

over-voltage protection in the event of upper MOSFET

direct shorted before power-on. The RT9603 detects the

fault condition during initial start-up, the internal power-

on OVP sense circuitry will rapidly drive the output lower

MOSFET on before the multi-phase PWM controller takes

control. As a result, the input supply will latch into the

shutdown state, thereby prevent the processor from

damaged.

(TOP VIEW)

BST

DRVH

PGND

DRVL

VCC

SOP-8

Ordering Information

RT9603

Package Type

S : SOP-8

Operating Temperature Range

C : Commercial Standard

DS9603-00 November 2003

www.richtek.com

12 3 4 5 6 7...10

中文翻译

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与RT9603相关器件

型号	品牌	获取价格	描述	数据表
RT9603_07	RICHTEK	获取价格	Synchronous-Rectified Buck MOSFET Drivers
RT9603CS	RICHTEK	获取价格	Synchronous-Rectified Buck MOSFET Drivers
RT9603GS	RICHTEK	获取价格	Synchronous-Rectified Buck MOSFET Drivers
RT9603PS	RICHTEK	获取价格	Synchronous-Rectified Buck MOSFET Drivers
RT9605A	RICHTEK	获取价格	Triple-Channel Synchronous-Rectified Buck MOSFET Driver
RT9605AGQV	RICHTEK	获取价格	Triple-Channel Synchronous-Rectified Buck MOSFET Driver
RT9605APQV	RICHTEK	获取价格	Triple-Channel Synchronous-Rectified Buck MOSFET Driver
RT9605B	RICHTEK	获取价格	Triple-Channel Synchronous-Rectified Buck MOSFET Driver
RT9605B_14	RICHTEK	获取价格	Triple-Channel Synchronous-Rectified Buck MOSFET Driver
RT9605BGQV	RICHTEK	获取价格	Triple-Channel Synchronous-Rectified Buck MOSFET Driver

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