Description:

The MCP1703A is an improved version of the MCP1703 low dropout (LDO) voltage regulator that can deliver up to 250 mA of current while consuming only 2.0 µA of quiescent current (typical). The input operating range is specified from 2.7V to 16.0V, making it an ideal choice for two to six primary cell battery powered applications, 9V alkaline and one or two cell Li-Ion-powered applications.

Features:

• Reduced Ground Current During Dropout

• Faster Startup Time

• 2.0 µA Typical Quiescent Current

• Input Operating Voltage Range: 2.7V to16.0V

• 250 mA Output Current for Output Voltages ≥2.5V

• 200 mA Output Current for Output Voltages < 2.5V

• Low Dropout Voltage, 625 mV Typical @ 250 mA for VR=2.8V

• 0.4 Typical Output Voltage Tolerance

• Standard Output Voltage Options:

- 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V, 4.0V, 5.0V

• Output Voltage Range: 1.2V to 5.5V in 0.1V Increments (50 mV increments available upon request)

• Stable with 1.0 µF to 22 µF Ceramic Output Capacitance

• Short-Circuit Protection

• Overtemperature Protection

Applications:

• Battery-Powered Devices

• Battery-Powered Alarm Circuits

• Smoke Detectors

• CO2 Detectors

• Pagers and Cellular Phones

• Smart Battery Packs

• Low Quiescent Current Voltage Reference

• PDAs

• Digital Cameras

• Microcontroller Power

• Solar-Powered Instruments

• Consumer Products

MCP1703A属于集成电路（IC） > 线性 + 开关稳压器。微芯科技股份有限公司制造生产的MCP1703A稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。