General Description

The MCP102/103/121/131 are voltage supervisor devices designed to keep a microcontroller in reset

until the system voltage has reached and stabilized at the proper level for reliable system operation. Table 1 shows the available features for these devices.

Features

• Ultra low supply current: 1.75 µA(steady-state max.)

• Precision monitoring options of:- 1.90V, 2.32V, 2.63V, 2.93V, 3.08V, 4.38V and 4.63V

• Resets microcontroller in a power-loss event

• RSTpin (Active-low):

- MCP121:Active-low, open-drain

- MCP131:Active-low, open-drain with internal pull-up resistor

- MCP102and MCP103:Active-low, push-pull

• Reset Delay Timer (120 ms delay, typ.)

• Available in SOT23-3, TO-92 and SC-70 packages

• Temperature Range:

- Extended: -40°C to +125°C(except MCP1XX-195)

- Industrial: -40°C to +85°C (MCP1XX-195 only)

• Pb-free devices

Applications

• Critical Microcontroller and Microprocessor Power-monitoring Applications

• Computers

• Intelligent Instruments

• Portable Battery-powered Equipment

MCP121T-270E/LB属于集成电路（IC） > 监控器。微芯科技股份有限公司制造生产的MCP121T-270E/LB监控器PMIC 监控器用于监视和/或控制电路中的电压轨，能够连接微控制器以维持一定的功率限值。监控器类型包括电池备用电路、监控器、多电压监控器、电源监控器、稳压器/监控器、复位计时器、定序器、简单复位/上电复位、智能开/关控制器、系统管理器、电压检测器和看门狗电路。