Datasheet > AIC1566CS

AIC1566CS

更新时间： 2024-09-23 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
7页	251K
描述
4-bit DAC, Simple PWM Power Regulator With Linear Controller

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AIC1566CS 数据手册

AIC1566

4-bit DAC, Simple PWM Power Regulator With

Linear Controller

ꢀFEATURES

ꢀDESCRIPTION

ꢀ Switching Regulator and Low Dropout Linear

Regulator on Single Chip.

ꢀ Simple Voltage-Mode PWM Control.

ꢀ Fast Transient Response.

The AIC1566 is a high power, high efficiency

switching regulator controller optimized for high

performance microprocessor applications. It is

designed to drive an N-channel MOSFET in a

ꢀ

1.5% 4-Bit Digital-to-Analog Output Voltage.

standard buck topology.

dropout linear regulator and

programmable switching regulator, the AIC1566

includes monitoring and protection capabilities in

addition to all the essential PWM control

functions.

Featuring a low

digitally

ꢀ Adjustable Current Limit Without External Sense

Resistors.

ꢀ Full 0% to 100% Duty Ratio.

ꢀ 200KHz Free-Running Oscillator Programmable

up to 350KHz.

ꢀ Power-Good Output Voltage Monitor.

ꢀ Short Circuit Protection with Low Short Circuit

Output Current.

The internal 4-bit Digital-to-Analog Converter

(DAC) adjusts the output voltage from 2.0V to

3.5V in 0.1V increments. The precision reference

and voltage-mode control can provide output

regulation within 1.5% over temperature and line

voltage shifts.

ꢀAPPLICATIONS

ꢀ Power Supply for Pentium, Pentium Pro, Power

PC, and Alpha Microprocessors.

ꢀ High-Power 5V to 3.xV DC/DC Regulators.

ꢀ Low-Voltage Distributed Power Supplies.

The internal oscillator of the AIC1566 free runs at

200KHz and can be adjusted up to 350KHz. The

resulting PWM duty ratio ranges from 0% to 100%.

The error amplifier features a 11MHz bandwidth

and 6V/µS slew rate which enables high

converter

bandwidth

for

fast

transient

performance.

The AIC1566 provides adjustable over current

and short circuit protections. It senses the output

current across the on resistance of the N-channel

MOSFET without an external low value sense

resistor. It also monitors the output voltage with a

window comparator and issues a power good

signal when the output is within 10% of the rated

output voltage.

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

DS-1566-00 TEL: 886-3-5772500 FAX: 886-3-5772510

www.analog.com.tw

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