MCP1624屬于集成電路（IC）的特殊用途穩(wěn)壓器。由微芯科技股份有限公司制造生產(chǎn)的MCP1624特殊用途穩(wěn)壓器該系列產(chǎn)品用于電源控制、某種形式的轉(zhuǎn)換，適用于特定的復(fù)雜應(yīng)用。因此，各種產(chǎn)品特性集差異較大，包括空燃比傳感器接口、汽車交流發(fā)電機(jī)電壓調(diào)節(jié)、DDR 端接、液體透鏡控制、摩托車轉(zhuǎn)向信號(hào)控制、熱電 (peltier) 冷卻器控制、壓電觸覺控制、閥門控制、小型發(fā)動(dòng)機(jī)管理等。

General Description

The MCP1623/24 is a compact, high-efficiency, fixed-frequency, synchronous step-up DC-DC converter. It provides an easy-to-use power supply solution for PIC? microcontroller applications powered by either single-cell, two-cell, or three-cell alkaline, NiCd, NiMH, and single-cell Li-Ion or Li-Polymer batteries.

Features

? Up to 96 Typical Efficiency

? 425 mA Typical Peak Input Current Limit:

- IOUT > 50 mA @ 1.2V VIN, 3.3V VOUT

- IOUT > 175 mA @ 2.4V VIN, 3.3V VOUT

- IOUT > 175 mA @ 3.3V VIN, 5.0V VOUT

? Low Start-Up Voltage: 0.65V, 3.3V VOUT @ 1 mA (typical)

? Low Operating Input Voltage: 0.35V, typical 3.3VOUT @ 1 mA

? Adjustable Output Voltage Range: 2.0V to 5.5V

? Maximum Input Voltage ? VOUT < 5.5V

? Automatic PFM/PWM Operation (MCP1624)

? PWM-Only Operation (MCP1623)

? PWM Operation: 500 kHz

? Low Device Quiescent Current: 19 μA, typical PFM Mode

? Internal Synchronous Rectifier

? Internal Compensation

? Inrush Current Limiting and Internal Soft Start

? True Load Disconnect

? Shutdown Current (All States): <1 μA

? Low Noise, Anti-Ringing Control

? Overtemperature Protection

? Available Packages:

- 6-Lead SOT-23

- 8-Lead 2 x 3 DFN

Applications

? One, Two and Three-Cell Alkaline and NiMH/NiCd Low-Power PIC? Microcontroller Applications