Description
19-4421; Rev 0; 4/09 www.DataSheet4U.com KIT ATION EVALU LE B A IL A AV Adaptive Step-Up Converters with 1.5A Flash Driver General .
Features.
2.
Step-Up DC-DC Converter 1.
Features
* 2.5V to 5.5V Operation Range
* Step-Up DC-DC Converter 1.5A Guaranteed Output Current Adaptive or I2C Programmable Output Voltage 2MHz and 4MHz Switching Frequency Options
* Two Flash/Movie LED Current Regulators I2C Programmable Flash and Movie Current Low-Dropout Voltage
Applications
* Cell Phones and Smart Phones PDAs, Digital Cameras, and Camcorders
Typical Operating Circuit
1μH OR 2.2μH INPUT 2.5V TO 5.5V IN 10μF AGND PROGRAMMABLE OUTPUT 3.7V TO 5.2V OUT 10μF
LX
Ordering Information
PART SWITCHING TEMP PIN-PACKAGE FREQUENCY RANGE (MHz) 2 4
PA_TXON FLASH ON I2C VLOGIC 0.1μF