Datasheet > US3011

US3011

更新时间： 2024-01-11 01:58:43

品牌	Logo	应用领域
UNISEM		控制器
页数	文件大小	规格书
11页	75K
描述
5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC

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中文翻译

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数据手册

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US3011 数据手册

US3011

5 BIT PROGRAMMABLE SYNCHRONOUS BUCK

CONTROLLER IC

PRELIMINARY DATASHEET

FEATURES

DESCRIPTION

Dual Layout Compatible with HIP6004A

The US3011controller IC is specifically designed to meet

Designed to meet Intel specification of VRM8.4 Intel specification for latest Pentium IIIä microproces-

for Pentium IIIä sor applications as well as the next generation P6 fam-

On board DAC programs the output voltage ily processors. These products feature a patented topol-

from 1.3V to 3.5V. The US3011 remains on for ogy that in combination with a few external components

VID code of (11111).

as shown in the typical application circuit ,will provide in

excess of 20A of output current for an on- board DC/DC

converter while automatically providing the right output

voltage via the 5 bit internal DAC.These devices also

features, loss less current sensing by using the Rds-

on of the high side Power MOSFET as the sensing

resistor, a Power Good window comparator that switches

its open collector output low when the output is outside

of a ±10% window and an OVP output. Other features of

the device are ; Undervoltage lockout for both 5V and

12V supplies , an external programmable soft start func-

tion as well as programming the oscillator frequency by

using an external capacitor.

Loss less Short Circuit Protection

Synchronous operation allows maximum

efficiency

Patented architecture allows fixed frequency

operation as well as 100% duty cycle during

dynamic load

Over Voltage Protection Output

Soft Start

High current totem pole driver for direct

driving of the external Power MOSFET

Power Good function

APPLICATIONS

Pentium III & Pentium IIä processor DC to DC con-

verter application

Low cost Pentium with AGP

TYPICAL APPLICATION

C10

C11

12V

C12

V12

CS+

HDrv

NC/

Boot

CS-

LDrv

Gnd NC/Sen

11 NC/Gnd

Vfb 10

C13

US3011

V5/Comp 9

Ct/Rt

OVP

PGd

VID4

VID3

VID2

VID1

VID0

Power Good

C14

3011app1-1.1

OVP

Notes: Pentium II and Pentium III are

trade marks of Intel Corp.

PACKAGE ORDER INFORMATION

Ta (°C)

Device

Package

20 pin Plastic SOIC WB

VID Voltage Range

1.3V to 3.5V

0 TO 70

US3011CW

Rev. 1.3

12/8/00

4-1

12 3 4 5 6 7...11

中文翻译

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与US3011相关器件

型号	品牌	获取价格	描述	数据表
US3011CW	UNISEM	获取价格	5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC
US3012	UNISEM	获取价格	5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC
US-3012	ETC	获取价格	PROTO BOARD 12PIN THRU-HOLE SIP
US3012ACW	UNISEM	获取价格	5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC
US3012CW	UNISEM	获取价格	5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC
US-3014	ETC	获取价格	PROTO BOARD 14PIN THRU-HOLE SIP
US3018	UNISEM	获取价格	5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS LDO CONTROLLER AND 200mA LDO ON BOARD
US3018CW	UNISEM	获取价格	5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS LDO CONTROLLER AND 200mA LDO ON BOARD
US301G-AE2-R	UTC	获取价格	0.2A SINGLE CHANNEL CURRENT-LIMITED LOAD SWITCH
US3021B	UNISEM	获取价格	5 BIT PROGRAMMABLE SYNCHRONOUS BUCK PLUS TRIPPLE LDO CONTROLLER

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