NR885K |Sanken Electric

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NR885K

Data Sheetdownload (PDF:757.84KB)
Application Notedownload (PDF:935.24KB)

Description

NR885K is a synchronous buck regulator IC with built-in power MOSFET.
With 3.0A continuous output current. Current mode control is used, with quick response to changing loads.
Also, the loop stability can be obtained easily with the built-in phase compensation component.

Application

・Power distribution system
・Charger
・Flat Panel TV
・Set top box
・DVD recorder

Features

・Output current: 3A
・Adjustable soft start
・Output voltage range: 0.8V to 14V(Target)
・Built-in power MOSFET
・Stable with low ESR ceramic output capacitors
・High efficiency: maximum of 94%
・Oscillation frequency: 350kHz
・Thermal protection:
・HSOP8 package with heat slug
・Built-in phase compensation component

Remarks

Package

Package Name:HSOP8

Package Diagram

Design Support

Specifications

Built-in PowerYES
Output Voltage0.8V to 14V
Output Current3A
Input Voltage Range4.5V to 18V
Operating Frequency350kHz
Synchronous/AsynchronousSynchronous
Current Mode ControlYES
Maximum Input Voltage18V
Minimum Input Voltage4.5V
Output on/offYES
Low ESR Capacitor SupportYES
Overcurrent ProtectionDrooping Type
Phase CompensationBuilt-in
Thermal ProtectionYES
UVLOYES

Representative Circuit

Internal Block Diagram

Pin-Out Diagrams

Data Sheetdownload (PDF:757.84KB)
Application Notedownload (PDF:935.24KB)
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