ISL9104 Datasheet (Renesas) - High Efficiency Synchronous Buck Converter

ISL9104, High Efficiency Synchronous Buck Converter

PIN NUMBER 1 2 PIN NAME VIN EN 3 NC 4 FB 5 GND 6 SW DESCRIPTION Input supply voltage.

Typically connect a 10µF ceramic capacitor to ground.

Regulator enable pin.

Enable the device when driven to high.

Shut down the chip and discharge output capacitor when driven to low.

Do not leave this

DATASHEET ISL9104, ISL9104A 500mA 4.3MHz Low IQ High Efficiency Synchronous Buck Converter FN6829 Rev 5.00 The ISL9104, ISL9104A is a 500mA, 4.3MHz step-down regulator, which is ideal for powering low-voltage microprocessors in compact devices such as PDAs and cellular phones.

It is optimized for generating low output voltages down to 0.8V.

The supply voltage range is from 2.7V to 6V allowing the use of a single Li+ cell, three NiMH cells or a regulated 5V input.

It has guaranteed minimum out

ISL9104 Features

* High Efficiency Integrated Synchronous Buck Regulator with up to 93% Efficiency

* 2.7V to 6.0V Supply Voltage

* 4.3MHz PWM Switching Frequency

* 500mA Guaranteed Output Current

* 3% Output Accuracy Over-Temperature and Line for Fixed Output Options