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參數(shù)資料
| 型號： | AIC1567CS |
| 廠商： | Analog Integrations Corporation |
| 英文描述： | 5-bit DAC, Synchronous PWM Power Regulator with Linear Controller |
| 中文描述： | 5位DAC，同步PWM功率線性穩(wěn)壓控制器 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 237K |
| 代理商： | AIC1567CS |
AIC1567
5-bit DAC, Synchronous PWM Power Regulator
with Linear Controller
Analog Integrations Corporation
4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
www.analog.com.tw
DS-1567-00
TEL: 886-3-5772500
FAX: 886-3-5772510
1
FEATURES
Switching Regulator and Low Dropout Linear
Regulator on single chip.
Simple Voltage-Mode PWM Control.
Dual N-Channel MOSFET Synchronous Drive.
Fast Transient Response.
±
1.0% 5-Bit Digital-to-Analog Output Voltage.
Adjustable Current Limit Without External Sense
Resistor.
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.
APPLICATIONS
Power Supply for Pentium II, Power PC and
Alpha Microprocessors.
High-Power 5V to 3.xV DC/DC Regulators.
Low-Voltage Distributed Power Supplies.
DESCRIPTION
The AIC1567 is a high power, high efficiency
switching regulator controller optimized for high
performance microprocessor applications. It is
designed to drive dual N-channel MOSFET in a
standard
synchronous
Featuring a low dropout linear regulator and a
digitally programmable switching regulator, the
AIC1567 includes monitoring and protection
capabilities in addition to all the essential
synchronous PWM control functions.
buck
topology.
The internal 5-bit Digital-to-Analog Converter
(DAC) adjusts the output voltage from 2.0V to
3.5V in 0.1V increments and 1.3V to 2.0V in
0.05V increments. The precision reference and
voltage-mode
control
regulation within
±
1.0% over temperature and
line voltage shifts.
can
provide
output
The internal oscillator of the AIC1567 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/
μ
S slew rate, which enables
high converter bandwidth for fast transient
response.
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