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IC manufacturers Monolithic Power Systems

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reference designMP8778

Monolithic Power Systems MP8778

Monolithic, 3A/20V,160kHz Synchronous Step-down Converter

Overview

TopologyBuck Converter
Input voltage4.5-20 V
Output 13.3 V / 3 A
IC revision1.01

Description

The MP8778 is a monolithic, synchronous, rectified, step-down, switch-mode converter. It offers a very compact solution to achieve a continuous 3A output current over a wide input supply range with excellent load and lineregulation. The MP8778 operates at high efficiency over a wide output current load range with an integrated 180mΩ high-side MOSFET and an integrated 75mΩ low-side MOSFET.Current mode operation provides a fast transient response and eases loop stabilization.The device also uses MPS’s proprietary Advanced Asynchronous Modulation for high efficiency at light load.Full protection features include cycle-by-cycle current limiting and thermal shutdown.The MP8778 is available in a thermallyenhanced PDIP8 package with exposed pad on top.

Features

  • Wide 4.5-to-20V Operating Input Range
  • Continuous 3A Output Current
  • Peak-Current–Mode Control and Internal Compensation
  • Integrated 180mΩ High-Side and 75mΩ Low-Side Power MOSFETs
  • Up to 92% Efficiency for VIN=12V, VO=3.3V
  • 90% Maximum Duty Cycle
  • Proprietary Switching-Loss–Reduction Technique
  • Fixed 160kHz Switching Frequency
  • Cycle-by-Cycle Over-Current Protection with Hiccup and Thermal Shutdown
  • Output Adjustable from 0.8V
  • Available in Thermally Enhanced PDIP8 Package with Exposed Pad on Top

Typical applications

  • LCD TV
  • Ultra-Thin Monitors

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
Qty.
IR,40K(A)
RDC max.(mΩ)
Size
Version
SamplesAvailability & Sample
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744314200
SPECWE-HCI SMT Flat Wire High Current Inductor, 2 µH, 13.8 A
Simu­lation
Availability
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Downloads9 files

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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance2 µH
Performance Rated Current13.8 A
Saturation Current @ 10%4.5 A
Saturation Current @ 30%9 A
DC Resistance5.85 mΩ
Self Resonant Frequency68 MHz
MaterialSuperflux 
Packaging Unit1000 
–
DC Resistance6.435 mΩ
Size7050 
VersionSMT 
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7447709150
SPECWE-PD SMT Power Inductor, 15 µH, 7.4 A
Simu­lation
Availability
–
Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
Inductance15 µH
Performance Rated Current7.4 A
Saturation Current @ 10%8 A
Saturation Current @ 30%9.8 A
–
Self Resonant Frequency17 MHz
–
Packaging Unit250 
Rated Current6.5 A
DC Resistance26 mΩ
Size1210 
VersionStandard 
–Check availability