 |
裕鼎祥科技让电源设计更便捷可靠|联系电话：13928434054 |
|
|
裕鼎祥科技让电源设计更便捷可靠|联系电话：13928434054 |
|
>产品中心 >按类型分 >低压降压Buck DC/DC > PJ3406
PJ3406是高效率的同步降压DC-DC转换器，PJ3406输入电压范围2.5V至5.5V，耐压6V，最大输出电流700mA。PJ3406适用于单一的锂离子电池供电应用，具有100％占空比能力，大大延长了便携设备的电池寿命，在无负载静态电流230μA，停机时降至<1μA。PJ3406内部同步0.35Ω，1A开关需要，以提高效率,无需外部肖特基二极管，1.5MHz的固定开关频率，PJ3406广泛应用于平板电脑、电池供电设备、小音响、数码相机、MP3、MP4、数码相框、手机等数码产品、Skype电话、USB HUB、摄像头、通讯工具、电子称、手持设备,
PJ3406产品特点：
1、效率高达95％
2、出色的线路电流模式操作和负载瞬态响应；
3、低静态电流：230μA；
4、低接通电阻RDS（ON）， 内置开关：0.35Ω；
5、输出电压：5.5V~0.6V；
6、无需肖特基二极管；
7、1.5MHz的固定频率开关；
8、高开关电流：1A；
9、短路保护；
10、关机静态电流：<1μA；
11、SOT-23-5封装。
PJ3406 Description
The PJ3406 is high efficiency synchronous, step-down DC/DC converters working under an input voltage range of 2.5V to 5.5V. This feature makes the PJ3406 suitable for single Li-lon battery-powered applications. 100% duty cycle capability extends battery life in portable devices, while the quiescent current is 230µA with no load, and drops to < 1µA in shutdown.The internal synchronous 0.35Ω, 1A switch is desired to increase efficiency without an external Schottky diode. The 1.5 MH·fixed switching frequency allows the
using of tiny, low profile inductors and ceramic capacitors, which minimized overall solution footprint. The PJ3406 regulators are available in the industry standard SOT-23-5 power packages (or upon request).
PJ3406 Features
· Up to 95% Efficiency
· Current mode operation for excellent line and load transient response
· Low quiescent current: 230µA
· Low Switch on Resistance RDS(ON), Internal Switch: 0.35
· Output voltage：5.5V～0.6V
· No Schottky diode required
· Low switch on resistance RDS(ON), Internal switch: 0.35Ω
· 1.5MH·fixed frequency switching
· High switch on current: 1A
· Short-Circuit protection
· Shutdown quiescent current: < 1µA
· Low profile SOT-23-5 package (lead-free packaging is now available)
PJ3406 Application
· Digital cameras and MP3
· Palmtop computers/PDA
· Cellular phones
· Wireless handsets and D
· PC cards
· Portable media players
