AX3604 Datasheet PDF

AXElite AX3604

The AX3604 is a dual high-efficiency Pulse-Width-Modulated (PWM) step-down DC-DC converter. It is capable of delivering 1A output current over a wide input voltage range from 2.5V to 5.5V, the AX3604 is ideally suited for portable electronic devices that are powered from 1-cell Li-ion battery or from other power sources within the range such as cellular phones, PDAs and other handheld devices. The AX3604 enters Low-Dropout mode when normal PWM cannot provide regulated output voltage by continuously turning on the upper PMOS.

Part No.	AX3604
Datasheet	AX3604 Download
Manufacturer	AXElite
Description	Dual High-Efficiency PWM Step-Down DC-DC Converter
Buy	Stock & Price

GENERAL DESCRIPTION

Two operational modes are available: PWM/Low-Dropout auto-switch and shutdown modes. Internal synchronous rectifier with low RDS(ON) dramatically reduces conduction loss at PWM mode. No external Schottky diode is required in practical application. The AX3604 enter shutdown mode and consumes less than 0.1μA when EN pin is pulled low. The switching ripple is easily smoothed-out by small package filtering elements due to a fixed operation frequency of 1.5MHz. This along with small TDFN-12L (3x3) package provides small PCB area application. Other features include soft start, lower internal reference voltage with 2% accuracy, over temperature protection, and over current protection. 

FEATURES

2.5V to 5.5V Input Voltage Range Adjustable Output Voltage from 0.6V to VIN 1A Output Current/per channel High Efficiency : up to 95% No Schottky Diode Required 1.5MHz Fixed-Frequency PWM Operation Small 12-Lead TDFN Package 1/15 Axelite Confidential Materials, do not copy or distribute without written consent.