NCP1423数据手册集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF

描述 Description

NCP1423 is a monolithic micropower high frequency step-up switching converter IC specially designed for battery operated hand-held electronic products up to 400mA loading. It integrates Synchronous Rectifier for improving efficiency as well as eliminating the external Schottky Diode. High switching frequency (up to 600 KHz) allows low profile inductor and output capacitor being used. When the IC is disabled, internal conduction path from LX or BAT to OUT is blocked, OUT pin is isolated from the battery. This achieves True-Cutoff. Ring-Killer is also integrated to eliminate the high frequency ringing in discontinuous conduction mode. Low-Battery Detector, Cycle-by-Cycle Current Limit, Overvoltage-Protection and Thermal Shutdown provide value-added features for various battery operated application. With all these functions ON, the quiescent supply current is only 9.0uA. This device is available in compact Micro-10 package

特性 Features

• High Switching Frequency, up to 600 kHz
• Low Quiescent Current of 9.0 uA
• Low Battery Detector
• 0.8 V Startup at No Load Guaranteed
• Ring-Killer for Discontinuous Conduction Mode
• Thermal Shutdown
• 1.2 A Cycle by Cycle Current Limit
• Output Current up to 400 mA @ VOUT = 3.3 V, 200 mA @ VOUT = 1.8 V
• Overvoltage Protection
• Low Profile and Minimum External Part
• Open Drain Low-Battery Detector Output
• Compact Micro-10 Package
• Pb-Free Package is Available

应用 Application

• Wireless Optical Mouse
• Wireless Headsets
• Internet Audio Players
• Personal Digital Assistants (PDAs)
• Handheld Instruments
• Conversion from one/two NiMH or NiCd cells to 1.8 V / 3.3 V

简介

NCP1423属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的NCP1423稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。