The JTM3406 is high efficiency synchronous,PWM step-down DC/

1.产品概述         2.产品特点
3.应用范围       4.下载产品资料PDF文档
5.产品封装图                     6.电路原理图
7.功能概述       8.相关产品

一,产品概述(General Description)
    The JTM3406 is high efficiency synchronous,PWM step-down
DC/DC converters working under an input voltage
range of 2.5V to 5.5V. This feature makes the JTM3406 suitable
for single Li-lon battery-powered applications.100% duty cycle
capability extends battery life in portable devices, while the quiescent
current is 200 A with no load, and drops to < 1 A in shutdown.
   The internal synchronous switch is desired to increase efficiency
without an external Schottky diode. The 1.4 MHz fixed switching
frequency allows the using of tiny,low profile inductors and ceramic
capacitors,which minimized overall solution footprint.
   The JTM3406 converters are available in the industry standard
SOT-23-5 power packages (or upon request).

二.产品特点(Features)
1.)Up to 95% Efficiency
2.)Current mode operation for excellent line and load
     transient response
3.)Low quiescent current: 230 UA
4.)Low Switch on Resistance RDS(ON),Internal Switch: 0.35
5.)Output voltage 5.5V 0.6V
6.)Automatic PWM/PFM mode switching
7.)No Schottky diode required
8.)1.4MHz fixed frequency switching
9.)Short-Circuit protection
10.)Shutdown quiescent current: < 1 UA
11.)Low profile SOT-23-5 package (lead-free
12.)packaging is now available)

三,应用范围 (Applications)
Digital cameras and MP3
Palmtop computers / PDAs
Cellular phones
Wireless handsets and DSL modems
PC cards
Portable media players

四.下载产品资料PDF文档 (责任编辑：oumao18)