Features
 High Efficiency: Up to 96%
 2.5V to 6V Input Voltage Range
 1.5MHz Constant Frequency Operation
 No Schottky Diode Required
 Low Dropout Operation:100% Duty Cycle
 PFM Mode for High Efficiency in Light Load
 Over temperature Protected
 Low Quiescent Current: 40μA
 Maximum output current: 1A
 Short Circuit Protection
 Inrush Current Limit and Soft Start
 SOT23-5 package
Applications
 Cellular and Smart Phones
 Wireless and DSL Modems
 PDAs
 Portable Instruments
 Digital Still and Video Cameras
 PC Cards
General Description
The TX9406 is a high-efficiency monolithic synchronous
buck regulator using a constant frequency, current
mode architecture. The device is available in an
adjustable version. Supply current with no load is 40uA
and drops to <1uA in shutdown. The 2.5V to 6V input
voltage range makes the TX9406 ideally suited for
single Li-Ion battery powered applications. 100% duty
cycle provides low dropout operation, extending battery
life in portable systems. PWM/PFM mode operation
provides very low output ripple voltage for noise
sensitive applications.Switching frequency is internally
set at 1.5MHz, allowing the use of small surface mount
inductors and capacitors. Low output voltages are easily
supported with the 0.6V feedback reference voltage.The
TX9406 is offered in a low profile (1mm) 5-pin, thin SOT
package, and is available in an adjustable version.
特征
高效率：高达96%
2.5V至6V的输入电压范围
1.5mhz恒定频率操作
无需Schottky Diode
低压降操作：100%占空比
PFM模式在轻负载高效率
超过温度保护
低静态电流：40
输出电流：1A
短路保护
浪涌电流限制和软启动
SOT23-5封装
应用
蜂窝和智能手机
无线和DSL调制解调器
PDA
便携式仪器
数字静止摄像机
PC卡
一般描述
是的tx9406高效单片同步
使用恒定频率电流的降压稳压器
模式架构。该设备可在
可调版本。电源电流与空载是40ua
在关机1ua滴<。2.5V至6V的输入
电压范围使其非常适合于tx9406
单锂离子电池供电应用。100%职责
循环提供低压差操作，延长电池
便携式系统中的生命。脉宽调制/ PFM模式操作
提供非常低的输出纹波电压噪声
敏感的应用开关频率在内部
设置为1.5MHz，允许使用小型表面贴装
电感器和电容器。低输出电压很容易
与反馈参考电压为0.6V的支持。
tx9406是低调提供5引脚SOT（1mm），薄
封装，并可在可调版本。

企业名：深圳市东裕电子科技有限公司

类型：贸易/代理/分销

电话： 0755-83320022

手机：18126079757

联系人：蔡先生

QQ：

邮箱：szdyhbd@126.com

地址：广东深圳深圳市福田区振华路华强广场C座9G