器件名称: LP3203-AJ5F
功能描述: 1.5MHZ,600mA,High Efficiency Synchronous PWM Step-Down DC/DC Convert
文件大小: 360.89KB 共10页
简 介:Preliminary
Datasheet
LP3203
1.5MHZ,600mA,High Efficiency Synchronous PWM Step-Down DC/DC Convert
General Description
The LP3203 is a constant frequency, current mode, PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency. The 2.1V to 5.5V input voltage range makes the LP3203 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 handy-terminals. Internal synchronous rectifier with low RDS(ON) dramatically reduces conduction loss at PWM mode. The internal synchronous switch increases efficiency while eliminate the need for an external Schottky diode.The switching ripple is easily smoothed-out by small package filtering elements due to a fixed operation frequency TSOT-23-5 of 1.5MHz. This along small with PCB small area package provide
◆ High Efficiency: 93% ◆ 1.5MHz Fixed-Frequency PWM Operation ◆ Adjustable Output From 0.6V to VIN ◆ 1.2V, 1.5V, 1.8V, 2.5V, 2.8V and 3.3V Fixed ◆ 600mA Output Current, 1.1A Peak Current ◆ No Schottky Diode Required ◆ 100% Duty Cycle Low Dropout Operation ◆ Available in TSOT23-5 Package ◆ Short Circuit and Thermal Protection ◆ Over Voltage Protection ◆ Low than 1A Shutdown Current
Features
Applications
Portable Media Players/MP3 players Cellular and Smart mobile phone PDA DSC Wireless Card
application. Other features include soft start, lower internal referen……
