深圳四海恒通科技是AXElite亞瑟萊特的授權代理商，代理全系列產品，部分長期備有大量現貨，竭誠為您提供優惠的價格，提供樣品及相應的技術支持，歡迎與我們聯系。
聯系電話：&sp; /&sp; 83018377&sp;&sp;&sp;公司網站：www.gofotech.com
AX3103A &sp;PWM Control 3A Step-Down Converter
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性能描述：
&sp;&sp;&sp;&sp;&sp;&sp; AX3103A consists of step-down switching regulator with PWM control. The devise include a reference voltage source, oscillation circuit, error amplifier, internal PMOS and etc.
&sp;&sp;&sp;&sp;&sp;&sp; AX3103A provid low-ripple power, high efficiency, and excellent transientcharacteristics. The PWM control circuit is able to the duty ratio linearly form 0 up to 100%. This converter also contains an error amplifier circuit as well as a soft-start circuit that prevents overshoot at startup. An enable function, an over current protect function and short circuit protect function are built inside, and when OCP or SCP happens, the operation frequency will be reduced. Also, an internal compensation block is built in to minimum external component count.
&sp;&sp;&sp;&sp;&sp;&sp; With the addition of an internal P-channel Power MOS, a coil, capacitors, and a diode connected externally, the ICs can function as step-down switching regulators. They serve as ideal power supply units for portable devic when coupled with the SOP-8L package, providing such outstanding featur as low current consumption. Since this converter can accommodate an input voltage up to 23V, it is also suitable for the operation via an AC adapter.
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特點：
•&sp; Input voltage：3.6V to 23V
•&sp; Output voltage：0.8V to VCC
•&sp; Duty ratio：0% to 100% PWM control
•&sp; Oscillation frequency：500KHz t.
•&sp; Soft-start (SS), Current Limit (CL), Enable function.
•&sp; Thermal Shutdown function.
•&sp; Short Circuit Protect (SCP).
•&sp; Built-in internal SW P-channel MOS.
•&sp; Low R output capacitor (Multi-layer chip capacitor (MLCC) application.
•&sp; SOP-8L Pb-Free package
引腳圖：
典型應用電路圖：
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我們還為您提供AXElite亞瑟萊特以下電源管理IC及應用方案:
▲LED照明&戶外顯示屏&背光
＊MR16射燈/頭燈/手電筒/汽車照明/紅外燈板/臺燈：AX2001,AX2002,AX2003,AX2005,AX2006,AX2020,AX2021
＊燈條/燈串：LED1113,AX2004
＊AC/DC隔離：AX2530(原邊),AX2535(原邊),AX9370(單級PFC)
＊AC/DC非隔離單級PFC：AX9310,AX9380
＊10寸以下屏背光驅動：AX2012,AX2016
＊LED戶外顯示屏：AX3007,AX3162,AX3514
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▲車載設備
＊車充：
* 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
＊車載DVD/GPS：
AX3005,AX3101,AX3102,AX3103,AX3104,AX3105,AX3106,AX3107,AX3003,AX3115,AX3301,AX5110,AX5201,
AX5204,AX1007,AX66xx,AX6901
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▲數碼消費產品
＊安監控設備：AX3005,AX3001,AX3022,AX3023,AX3101,AX6901,AX2002
＊DVB機頂盒：AX3001～AX3004,AX3101～AX3106,AX3512～
AX3519,AX3113,AX3301,AX1084,AX1007,AX358,AX3801,AX35xx,AX5201,AX3131
＊Protable DVD：AX3101,AX3482,AX3484，AX5201,AX5204,AX5510,AX312x
＊/EPC／MID：AX3102～AX3107,AX3113,AX3114,AX3120～AX3122,AX3512～
AX3519,AX5201,AX5204,AX5301,AX5110,AX6901,AX1007,AX1084,AX66xx,AX993,AX995,AX2012,AX2016
＊LCD-TV：AX3102～AX3107,AX3113,AX3114,AX3120～
AX3122,AX5201,AX5204,AX5301,AX358,AX1007,AX1084,AX66xx,AX6901,AX35xx,AX3801～AX3805
＊移動硬盤盒/底座：AX3101,AX3108,AX3301,AX3512,AX3513,AX1007(Vin與Vout兩端的電容可以用到低
至0.1uF的MLCC)
＊SSD固態硬盤：AX351x系列（AX3512/AX3513同步降壓系列產品將外置的開關元件都整合到DC-DC
的IC里，內含各一個P、NMOS，包含省電模式功能，可提供1A-4A的連續輸出電流，工作頻率可到
1.5Mhz，轉換效率可達90%）
＊移動電源/應急充：
* 5V/0.6A：AX5511
* 5V/1A：AX5510,AX5201
* 5V/2A：AX5302
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▲網絡設備
＊路由器：AX3022,AX3001,AX3101～AX3107
＊Modem/LAN/ADSL/WLAN AP：AX3022,AX3001,AX3101～AX3107
＊無線網卡：AX3512,AX3513,AX3514
＊WiFi：AX3515
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▲AC-DC旅行充電器
*AX2530（替代OB2532，CL1100）
*AX2535（替代OB2535）
*AX6203（替代THX203）
*AX6228 12W
*AX2520 16W
