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AX3482 2A, 23V, 340kHz Synchronous Rectified Step-Down Converter
性能描述:
The AX3482 is a monolithic synchronous buck regulator. The device integrates two
130mΩ MOSFETs, and provides 2A of continuous load current over a wide input voltage of
4.75V to 23V. Current mode control provides fast transient response and cycle-by-Cycle
current limit.
An adjustable soft-start prevents inrush current at turn-on, and in shutdown mode the
supply current drops to 1μA.
This device, available in an 8-pin SOP package, provides a very compact solution with
minimal external components.
特点:
• 2A Output Current
• Wide 4.75V to 23V Operating Input Range
• Integrated 130mΩ Power MOSFET Switches
• Output adjust from VFB to 20V
• Up to 93% Efficiency
• Programmable Soft-Start
• Stable with Low *R Ceramic Output Capacitors
• Fixed 350KHz Frequency
• Cycle-by-Cycle Over Current Protection
- Thermal shutdown and short circuit protections
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
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