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L6911C - 5 BIT PROGRAMMABLE STEP DOWN CONTROLLER

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General Description

The device is a power supply controller specifically designed to provide a high performance DC/DC conversion for high current microprocessors.

A precise 5-bit digital to analog converter (DAC) allows adjusting the output voltage from 1.30V to 2.05V with 50mV binary steps and from 2.10V to 3.50V with 100mV binary steps.

The high precision internal reference assures the selected output voltage to be within ±1%.

Overview

L6911C 5 BIT PROGRAMMABLE STEP DOWN CONTROLLER WITH SYNCHRONOUS RECTIFICATION s s s s s s s s s s s www.DataSheet4U.com s OPERATING SUPPLY IC VOLTAGE FROM 5V TO 12V BUSES UP TO 1.3A GATE CURRENT CAPABILITY TTL-COMPATIBLE 5 BIT PROGRAMMABLE OUTPUT COMPLIANT WITH VRM 8.4 : 1.3V TO 2.05V WITH 0.05V BINARY STEPS 2.1V TO 3.5V WITH 0.

Key Features

  • a 15MHz gain-bandwidth product and 10V/µsec slew rate which permits high converter bandwidth for fast transient performance. The resulting PWM duty cycle ranges from 0% to 100%. The device protects against overcurrent conditions entering in HICCUP mode. The device monitors the current by using the rDS(ON) of the upper MOSFET which eliminates the need for a current sensing resistor. The device is available in SO20 package. Oscillator The switching frequency is internally fixed to 200kHz. The inte.

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