RT8100 查看數據表（PDF） - Richtek Technology

零件编号

产品描述 (功能)

生产厂家

RT8100

Synchronous buck PWM DC/DC with Dual Voltage Control Mode

Richtek Technology 

Preliminary

RT8100

Synchronous buck PWM DC/DC with Dual Voltage Control Mode

General Description

The RT8100 is an advanced DC/DC synchronous buck PWM

controller with several innovative functions for specific

customer’ s ASIC only. The part features RichTek’ s

innovative design and topology say “analogous current

mode” for current sensing and full functions for various

applications including adjustable soft start, free-run and

adjustable operation frequency and enable; the part is with

design of 12V+12V boot strapped driver which is capable

to drive up to 20Amp output current; moreover the part is

with implementation of accuracy DCR current sensing

topology. There are several specific features implemented

and reserved for the specific customer’ s special

applications including dual VCORE control mode including

tracking and stand-alone mode, and output current

indication. The part is proposed with a small footprint of

VQFN-16L 3x3 package.

Ordering Information

RT8100

Package Type

QV : VQFN-16L 3x3 (V-Type)

Operating Temperature Range

P : Pb Free with Commercial Standard

G : Green (Halogen Free with Commer-

cial Standard)

Note :

Richtek Pb-free and Green products are :

`RoHS compliant and compatible with the current require-

ments of IPC/JEDEC J-STD-020.

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

`100% matte tin (Sn) plating.

Features

z Analogous Current Mode Design

z 2.5V to 12V Switching Source Power

z 0.8V to 3.3V Output Voltage Regulation

z Adjustable VIN Feed-Forward Ramp Slope

z Adjustable Operation Frequency

z Precise Core Voltage Regulation

z Precise DCR Current Sensing with High Quality

Capacitor, X7R

z ± 1.5% System Accuracy

z Input Voltage : 12V and 5V Bias

z Enable Function

z RoHS Compliant and 100% Lead (Pb)-Free

z Over Current Protection

z External Soft Start Setting

z Operation Frequency up to 1.0MHz

z Dual Mode Voltage Control

`Tracking Mode

`Stand-Alone Mode

z Output Current Indication

z 16-Lead VQFN Package

Applications

z MB memory and chipset core power

z Middle-high graphic card GPU and memory core power

z General-purpose fields including server, NB, bare-bone

and mini-system

Pin Configurations

(TOP VIEW)

16 15 14 13

5VSB 1

RT 2

I_IND 3

RR 4

GND

17

12 LGATE

11 PVCC

10 SS

9 PI

5678

VQFN-16L 3X3

DS8100-03 August 2007

www.richtek.com

1

Share Link: