Monolithic Power Systems (MPS) MP8770C Step-Down Converter with Forced CCM

Monolithic Power Systems MP8770C Step-Down Converter with Forced CCM is a fully integrated, high-frequency, synchronous rectified step-down switch-mode converter with internal power MOSFETs. This synchronous converter provides a very compact solution to achieve 8A of continuous output current with excellent load and line regulation over a wide input range. The MP8770C converter offers fast load transient response, easy loop designs, very tight output regulation using Constant-on-Time (COT) control operation. This step-down converter offers full protection features that include Over-Current Protection (OCP), Short-Circuit Protection (SCP), Under-Voltage Protection (UVP), and thermal shutdown.

The MP8770C step-down converter uses synchronous mode operation for higher-efficiency over the output current load range and comes in a space-saving QFN-16 (3mm x 3mm) package. Typical applications include portable devices, xDSL devices, digital set-top boxes, flat panel television and monitors, general purposes, and industrial systems.

Features

  • 3V to 17V wide operating input range
  • 8A output current
  • 22mΩ/10mΩ Low RDS(ON) internal power MOSFETs
  • 100μA Quiescent current
  • Output adjustable from 0.6V
  • High-efficiency synchronous mode operation
  • Pre-biased start-up
  • Forced PWM operation
  • Fixed 700kHz switching frequency
  • External programmable soft-start time
  • EN and power good for power sequencing
  • Built-in protections:
    • Short-Circuit Protection (SCP)
    • Over-Current Protection (OCP) and hiccup mode
    • Under-Voltage Protection (UVP)
    • Thermal shutdown
  • Available in a QFN-16 (3mm x 3mm) package

Applications

  • Security cameras
  • Portable devices
  • Digital set-top boxes
  • Flat-panel television and monitors
  • General purposes
  • xDSL devices

Block Diagram

Block Diagram - Monolithic Power Systems (MPS) MP8770C Step-Down Converter with Forced CCM

Typical Application Diagram

Application Circuit Diagram - Monolithic Power Systems (MPS) MP8770C Step-Down Converter with Forced CCM

Monolithic Power Systems (MPS) MP8770C Step-Down Converter with Forced CCM