Microchip MCP16312-E/MS DC-DC Buck Regulator, 4.4-30V In, 2-24V Out, 1A, MSOP-8

Microchip MCP16312-E/MS 1A DC-DC Buck Regulator is a synchronous step-down converter that accepts a 4.4V to 30V DC input and provides an adjustable 2V to 24V DC output at up to 1A.

Overview

The MICROCHIP MCP16312-E/MS is a compact, high-efficiency synchronous step-down DC-DC converter designed for local power conversion. Its wide input voltage range and adjustable output make it suitable for a variety of voltage regulation tasks. The regulator integrates the high-side and low-side N-channel power switches together with their drive circuitry, which reduces the number of external components required.

Key Features

• Efficiency of up to 95%, supported by a low-resistance switch design
• Fixed-frequency peak current mode control with internal compensation, so no external compensation components are needed
• Operates exclusively in pulse-width modulation (PWM) mode with a constant switching frequency
• Internal soft-start of 300μs from enable to manage inrush current during start-up
• Ultra-low 0.8V stable reference voltage
• Quiescent current of 3μA in shutdown and 44μA in non-switching PFM mode

Protection

Built-in protection features include cycle-by-cycle peak current limiting, under-voltage lockout (UVLO), and over-temperature protection, helping to safeguard the IC and the wider design.

Specifications

• Input Voltage Range: 4.4V to 30V DC
• Adjustable Output Voltage Range: 2V to 24V DC
• Maximum Output Current: 1A
• Topology: Synchronous Buck (Step-Down)
• Dimensions (W x D x H): 3.3 x 1.5 x 4.3
• Weight: 0.159 g

Applications

Suitable for general voltage regulation, noise-sensitive applications where a constant switching frequency is required, and battery-powered applications where low quiescent current is important.