Datasheet > AIC1574

AIC1574

更新时间： 2024-09-24 22:47:43

品牌	Logo	应用领域
沛亨 - AIC		稳压器控制器
页数	文件大小	规格书
20页	381K
描述
5-bit DAC, Synchronous PWM Power Regulator with Triple Linear Controllers

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

AIC1574 数据手册

AIC1574

5-bit DAC, Synchronous PWM Power Regulator

with Triple Linear Controllers

FEATURES

DESCRIPTION

The AIC1574 combines a synchronous voltage mode

l Compatible with HIP6021.

controller with three linear controller as well as the

monitoring and protection functions in this chip. The

PWM controller regulates the microprocessor core

voltage with a synchronous rectified buck converter.

The three linear controllers regulate power for the

1.5V or 3.3V AGP bus power, the 1.5V GTL bus and

the 1.8V power for the chip set core voltage and/or

cache memory circuits.

l Provides 4 Regulated Voltages for Microprocessor

Core, AGP Bus, Memory and GTL Bus Power.

l TTL Compatible 5-bit Digital-to-Analog Core Output

Voltage Selection. Range from 1.3V to 3.5V.

0.1V Steps from 2.1V to 3.5V.

0.05V Steps from 1.3V to 2.05V.

±1.0% Output Voltage for VCORE, ±3.0% Accu-

racy for Linear Controller Outputs.

An integrated 5 bit D/A converter that adjusts the

core PWM output voltage from 2.1V to 3.5V in 0.1V

increments and from 1.3V to 2.05V in 0.05V incre-

ments. The linear controller for AGP bus power is

selectable by TTL-compatible SELECT pin status for

1.5V or 3.3V with ±3% accuracy. The other two

linear controller provide 1.5V±3% and 1.8V±3% or

adjustable output voltage by means of external di-

vided resistor based on FIX pin status.

l Simple Voltage-Mode PWM Control and Built in

Internal Compensation Networks.

l N-Channel MOSFET Driver for PWM Buck Con-

verter.

l Linear Controller Drives Compatible with both N–

Chanel MOSFET and NPN Bipolar Series Pass

Transistor.

l Operates from +3.3V, +5V and +12V Inputs.

l Fast Transient Response.

This chip monitors all the output voltages. Power

Good signal is issued when the core voltage is

within ±10% of the DAC setting and the other levels

are above their under-voltage levels. Over-voltage

protection for the core output uses the lower N-

channel MOSFET to prevent output voltage above

116% of the DAC setting.

l Full 0% to 100% Duty Ratios.

l Adjustable Current Limit without External Sense

Resistor.

l Microprocessor Core Voltage Protection against

Upper MOSFET shorted to +5V.

l Power Good Output Voltage Monitor.

The PWM over-current function monitors the output

current by using the voltage drop across the upper

MOSFET’ s R_DS(ON), eliminating the need for a cur-

rent sensing resistor.

l Over-Voltage and Over-Current Fault Monitors.

l 200KHz Free-Running Oscillator Programmable up

to 700KHz.

APPLICATIONS

l Full Motherboard Power Regulation for Computers.

Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC

DS-1574-00 May 22, 01 TEL: 886-3-5772500 FAX: 886-3-5772510

www.analog.com.tw

12 3 4 5 6 7...20

中文翻译

下载PDF

与AIC1574相关器件

型号	品牌	获取价格	描述	数据表
AIC1574CS	AIC	获取价格	5-bit DAC, Synchronous PWM Power Regulator with Triple Linear Controllers
AIC1577	AIC	获取价格	External NMOS Step-Down PWM Controller
AIC1577-COTB	AIC	获取价格	External NMOS Step-Down PWM Controller
AIC1577-COTR	AIC	获取价格	External NMOS Step-Down PWM Controller
AIC1577-CSTB	AIC	获取价格	External NMOS Step-Down PWM Controller
AIC1577-CSTR	AIC	获取价格	External NMOS Step-Down PWM Controller
AIC1577-POTB	AIC	获取价格	External NMOS Step-Down PWM Controller
AIC1577-POTR	AIC	获取价格	External NMOS Step-Down PWM Controller
AIC1577-PSTB	AIC	获取价格	External NMOS Step-Down PWM Controller
AIC1577-PSTR	AIC	获取价格	External NMOS Step-Down PWM Controller

与AIC1574相关文章

塔塔电子与力积电达成技术转让协议，携手建设印度首座晶圆厂
2024-09-29

2
英特尔震撼发布：128核心256线程的至强6性能核处理器
2024-09-29

5
SK海力士量产12层HBM3E，容量高达36GB
2024-09-27

11
意法半导体传感器驱动Sphere，开启沉浸式电影新时代
2024-09-27

15

产品中心

服务支持

精选活动

关于我们

帮助中心

AIC1574

AIC1574 数据手册

与AIC1574相关器件

与AIC1574相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

AIC1574

AIC1574 数据手册

与AIC1574相关器件

与AIC1574相关文章

您还可以找

您在本页遇到什么问题？