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MCP120
  • MCP120
  • MCP120
  • MCP120

MCP120

In Production

The MCP120 is a voltage supervisory device designed to keep a microcontroller in reset until the system voltage has reached the proper level and stabilized. It also operates as protection from brown-out conditions when the supply voltage drops below a safe operating level. MCP120 features an open drain output, and active low reset and is available in a choice of seven different trip voltages. It operates over the extended industrial temperature range (-40°C/+85°C). MCP120 is available in a TO-92, SOT23-3, and SN packages....

Microchip Technology MCP120 Product Info

16 April 2026 0

Parameters

Driver Type

Supervisor

Min Operating Voltage (V)

1

Max Operating Voltage (V)

5

Nominal Reset Voltage Min

2.625

Nominal Reset Voltage Max

4.725

Watchdog Timer

No

Manual Reset

No

Power Fail

No

Min Operating Ambient Temperature (°C)

-40

Max Operating Ambient Temperature (°C)

85

Features

  • Holds microcontroller in reset until supply voltage reaches stable operating level
  • Resets microcontroller during power loss
  • Precision monitoring of 3V, 3.3V and 5V systems
  • 7 voltage trip points available
  • Active low RESET pin
  • Open drain output
  • Internal pull-up resistor (5 kohm) for MCP130
  • Holds RESET for 35kΩ (typical)
  • RESET to VCC = 1.0V
  • Accuracy of +(-)125mV for 5V systems and +(-)75mV for 3V systems over temp
  • 45uA typical operating current
  • Industrial (I): -40C to +85C

Description

The MCP120 is a voltage supervisory device designed to keep a microcontroller in reset until the system voltage has reached the proper level and stabilized. It also operates as protection from brown-out conditions when the supply voltage drops below a safe operating level. MCP120 features an open drain output, and active low reset and is available in a choice of seven different trip voltages. It operates over the extended industrial temperature range (-40°C/+85°C). MCP120 is available in a TO-92, SOT23-3, and SN packages.

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