优势热卖AX3161 DC/DC降压IC 耐压58V 直接替代LM2576HV NS

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AX3161 52KHz, 2A PWM Buck DC/DC Converter 

性能描述：

      The AX3161 series are monolithic IC designed for a step-down DC/DC converter, and own the ability of driving a 2A load without additional transistor. It saves board space. The external shutdown function can be controlled by logic level and then come into standby mode. The internal compensation makes feedback control having good line and load regulation without external design. Regarding  protected function, thermal shutdown is to prevent over temperature operating from damage, and current limit is against over current operating of the output switch. If current limit function occurs and VFB is down below 0.5V, the switching frequency will be reduced. An external compensation is easily to system stable; the low *R output capacitor can be used.  
     The AX3161 series operates at a switching frequency of 52KHz thus allow *aller sized filter components than what woul d be needed with lower frequency switching regulators. The output version included fixed 5V, 12V, and  an adjustable t*e. The chips are available in standard TO263-5L, TO220-5L and TO220-5LR packages.

特点：

•  Output voltage: 5V and adj ustable output version.
•  Adjustable version output voltage range, 1.23V to 57V.
•  52KHz fixed switching frequency.
•  Voltage mode non-synchronous PWM control.
•  Thermal-shutdown and current-limit protection.
•  ON/OFF shutdown control input.
•  Short Circuit Protect (SCP).
•  Operating voltage can be up to 60V.
•  Output load current: 2A.
•  TO263-5L, TO220-5L and TO220-5LR Pb-Free packages.
•  Low power standby mode.
•  Built-in switching transistor on chip.

引脚图：

典型应用电路图：

我们还为您提供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

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＊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

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

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

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＊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