LP4057

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The LP4057 is a complete constant-current/constant- voltagelinear charger for single cell lithium-ion batteries. Its packageand low external component count make the LP4057 ideallysuited for portable applications. Furthermore, the LP4057 isspecifically designed to work within USB power specifications.No external sense resistor is needed, and no blocking diode isrequired due to the internal MOSFET architecture. Thermalfeedback regulates the charge current to limit the dietemperature during high power operation or high ambienttemperature. The charge voltage is fixed at 4.2V, and thecharge current can be programmed externally with a singleresistor

Features? Programmable Charge Current Up to 600mA? No MOSFET, Sense Resistor or Blocking Diode Required? Constant-Current/Constant-Voltage Operation withThermal Regulation to Maximize? Charge Rate Without Risk of Overheating? 4.2V Charge Voltage with ? 1% Accuracy? Charge Current Monitor Output for Gas Gauging? Automatic Recharge? 3V Trickle Charge Threshold? Charging OTP? Package in SOT23-6

Applications? Portable Media Players/MP3 players? Cellular and Smart mobile phone? PDA/DSC

LP4057

公司背景：

深圳市亿创微芯电子有限公司是泉芯电子授权的代理商（有授权代理证书），全线代理泉芯电子的QX2303，QX2304，QX2306系列及LED驱动芯片系列！QX2303，QX2304，QX2306等系列产品已经销售十年，产品成熟，性能优越，特别是抗干扰功能明显优于及其他公司同类型产品，可以直接替代RT，XC，BL，ME，TP，AIC等的DC-DC升压同类产品；

技术支持：

除了原厂的强大的技术后盾，另外我公司自有实力的工程团队，专设FAE工程师可随时解决和解答您对产品应用中的问题；

现货库存：

常规型产品我公司都会备有现货，保证您的使用要求，让您不会缺货，保证您的生产顺利按时交单；

特别服务：

特别量大和长期与我们合作的客户，我们会为您去原厂申请特批单价，为我们共赢而长期友好发展。

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