MCP1253T-ADJI/MS集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF中文资料

MCP1253T-ADJI/MS属于集成电路（IC）的稳压器-DC-DC开关稳压器。由微芯科技股份有限公司制造生产的MCP1253T-ADJI/MS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。

Description

The MCP1252/3 are inductorless, positive-regulated charge pump DC/DC converters. The devices generate a regulated fixed (3.3V or 5.0V) or adjustable output voltage. They are specifically designed for applications requiring low noise and high efficiency and are able to deliver up to 120 mA output current. The devices allow the input voltage to be lower or higher than the output voltage, by automatically switching between buck/boost operation.

Features

• Inductorless, Buck/Boost, DC/DC Converter

• Low Power: 80 µA (Typical)

• High Output Voltage Accuracy:

- ±2.5 (VOUT Fixed)

• 120 mA Output Current

• Wide Operating Temperature Range:

- -40°C to +85°C

• Thermal Shutdown and Short-Circuit Protection

• Uses Small Ceramic Capacitors

• Switching Frequency:

- MCP1252: 650 kHz

- MCP1253: 1 MHz

• Low Power Shutdown Mode: 0.1 µA (Typical)

• Shutdown Input Compatible with 1.8V Logic

• VIN Range: 2.0V to 5.5V

• Selectable Output Voltage (3.3V or 5.0V) or Adjustable Output Voltage

• Space-saving, 8-Lead MSOP

• Soft-Start Circuitry to Minimize In-Rush Current

Applications

• White LED Backlighting

• Color Display Bias

• Local 3V-to-5V Conversions

• Flash Memory Supply Voltage

• SIM Interface Supply for GSM Phones

• Smart Card Readers

• PCMCIA Local 5V Supplies