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AX3513 1.4MHz, 1A Synchronous Step-Down Converter
性能描述:
AX3513 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 250uA and drops to <1uA in shutdown. The 2.5V to 5.5V input
voltage range makes AX3513 ideally suited for single Li-Ion, two to three AA
battery-powered applications. 100% duty cycle provides low dropout operation, extending
battery life in portable systems. PWM operation provides very low output ripple voltage for
noise sensitive applications. Switching frequency is internally set at 1.4MHz, allowing the
use of *all surface mount inductors and capacitors. The internal synchronous switch
increases efficiency and decreases need of an external schottky diode. Low output voltages
are easily supported with the 0.6V feedback reference voltage. AX3513 is available in *all
TSOT-23-5L and TDFN-6L packages.
特点:
• 2.5V to 5.5V Input Voltage Range
• Output Voltage from 0.6V to VIN
• High Efficiency: Up to 96%
• 1.4MHz Constant Frequency Operation
• Up to 1A Output Current
• Quiescent Current: 250uA (T*ical)
• No Schottky Diode Required
• Current Mode Operation for Excellent Line and Load Transient Response
• Current limit, Enable function
• Short Circuit Protect (SCP)
• Build in soft start function
• ≤ 1µ A Shutdown Current
• TSOT-23-5L and TDFN-6L 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
其他IC
AX3513
11+
Axelite/亚瑟莱特
TSOT23-5