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AIC1571 - 5-bit DAC/ Synchronous PWM Power Regulator with Dual Linear Controllers

Description

The AIC1571 combines a synchronous voltage mode controller with two linear controllers 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.

Features

  • Provides 3 Regulated Voltages for Microprocessor Core, Clock and GTL Power. Simple Voltage-Mode PWM Control. Dual N-Channel MOSFET Synchronous Driver. Operates from +3.3V, +5V and +12V Inputs. Fast Transient Response. Full 0% to 100% Duty Ratios. ±1.0% Output Voltage for VCORE and ±2.0% Output Voltage Reference for VCLK and VGTL. 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. Adjustable.

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Datasheet Details

Part number AIC1571
Manufacturer Analog Intergrations Corporation
File Size 462.61 KB
Description 5-bit DAC/ Synchronous PWM Power Regulator with Dual Linear Controllers
Datasheet download datasheet AIC1571 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
AIC1571 5-bit DAC, Synchronous PWM Power Regulator with Dual Linear Controllers FEATURES Provides 3 Regulated Voltages for Microprocessor Core, Clock and GTL Power. Simple Voltage-Mode PWM Control. Dual N-Channel MOSFET Synchronous Driver. Operates from +3.3V, +5V and +12V Inputs. Fast Transient Response. Full 0% to 100% Duty Ratios. ±1.0% Output Voltage for VCORE and ±2.0% Output Voltage Reference for VCLK and VGTL. 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. Adjustable Current Limit without External Sense Resistor. Microprocessor Core Voltage Protection against Shorted MOSFET. Power Good Output Voltage Monitor. Over-Voltage and Over-Current Fault Monitors.
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