优势热卖AX3518 DC/DC同步整理降压IC，AXElite代理

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AX3518   1MHz, 3.2A Synchronous Step-Down Converter

性能描述： 

        The AX3518 is a 1MHz constant frequency cu rrent mode PWM step- down converter. It
is ideal for portable equipment requiring very  high current up to 3.2A from single-cell
Lithium-ion batteries while still achieving over 90% efficiency during peak load conditions.
The AX3518 also can run at  100% duty cycle for low dropout operation, extending battery
life in portable systems while light  load operation provides very low output ripple for noise
sensitive applications. The AX3518 can supply up to 3.2A output load curr ent from a 2.8V to
5.5V input voltage and the output voltage can be regulated as low as 0.8V. The high
switching frequency minimizes the size of external components while keeping switching
losses low. The internal slope compensation setting allows the device to operate with
*aller inductor values to optimize size and  provide efficient oper ation. The AX3518 is
available in adjustable (0.8V to VIN) output voltage. The device is available in SOP-8L-EP
and TDFN-8L Pb-free packages.                   

特点： 

•   2.8V to 5.5V Input Voltage Range
•   Output Voltages from 0.8V to VIN
•   High Efficiency: Up to 94 %
•   1MHz Constant Frequency Operation 
•   With power saving mode 
•   Up to 3.2A Output Current  
•   No Schottky Diode Required 
•   Current Mode Operation for Excellent Line and Load Transient Response
•   Current limit and therma l shutdown protection
•   Short Circuit Protect (SCP)
•   Build-in Soft Start function
•   SOP-8L-EP and TDFN-8L  Pb-Free  packages 

引脚图：

订购信息：

典型应用电路图：

我们为您提供AXElite亚瑟莱特以下电源管理IC及应用方案:

▲LED照明驱动电源

＊MR16/头灯/手电筒/汽车照明/红外灯板/台灯：AX2001,AX2002,AX2003,AX2005,AX2006,AX2020,AX2021

＊灯条/灯串：LED1113,AX2004

＊10寸以下屏背光驱动：AX2012

▲车载设备

＊车充：

5V/1A：AX3007,AX3010,AX3011,AX358,AX34063

5V/1.5A：AX3015,AX3016

5V/2.1A：AX3111,AX3112,AX3117

5V/3.1A,5V/4.2A：AX3304 AM9569

＊车载DVD/GPS：

AX3005,AX3101,AX3102,AX3103,AX3104,AX3105,AX3106,AX3107,AX3003,AX3115,AX3301,AX5110,AX5201,AX5204,AX1007,AX66xx,AX6901

▲数码消费产品

＊安*设备：AX3005,AX3001,AX3022,AX3023,AX3101,AX6901

＊DVB机顶盒：AX3001～AX3004,AX3101～AX3106,AX3512～AX3519,AX3113,AX3301,AX1084,AX1007,AX358

＊Protable DVD：AX3101,AX3482,AX3484，AX5201,AX5204,AX5510

＊*/EPC／MID：AX3102～AX3107,AX3113,AX3114,AX3120～AX3122,AX3512～AX3519,AX5201,AX5204,AX5301,AX5110,AX6901,AX1007,AX1084,AX66xx,AX993,AX995

＊LCD-TV：AX3102～AX3107,AX3113,AX3114,AX3120～AX3122,AX5201,AX5204,AX5301,AX358,AX1007,AX1084,AX66xx,AX6901

＊移动硬盘盒/底座：AX3101,AX3108,AX3301,AX3512,AX3513,AX1007(Vin与Vout两端的电容可以用到*0.1uF的MLCC)

＊SSD固态硬盘：AX351x系列（AX3512/AX3513同步降压系列产品将*外置的开关元件都整合到DC-DC的IC里，内含各一个P、NMOS，包含省电模式功能，可提供1A-4A的连续输出电流，工作频率可*到1.5Mhz，转换效率可达90%）

＊移动电源/应急充：

5V/0.6A：AX5511

5V/1A：AX5510,AX5201

5V/2A：AX5302

▲网络设备

＊路由器：AX3022,AX3001,AX3101～AX3107

＊Modem/LAN/ADSL/WLAN AP：AX3022,AX3001,AX3101～AX3107

＊无线网卡：AX3512,AX3513,AX3514