NCP3134: 2.9V to 5.5V, 4A, 2.2MHz, Integrated Synchronous DC-DC Step Down Converter

The NCP3134 is a fully integrated synchronous buck converter capable of operating from 2.9V to 5.5V while delivering up to 4A. The NCP3134 operates at 2.2MHz, allowing for a smaller output filter and offering fast load transient response. The device can operate in DCM/CCM (higher efficiency at light loads) or Forced CCM mode to ensure fixed frequency operation. The device is offered in a small 3mm by 3mm QFN package.

Features

Automatic DCM/CCM and FCCM operating modes
2.2MHz Switching Frequency
3mm by 3mm QFN package
Over/Undervoltage, Overcurrent, and Overtemperature protection
Internal 1ms soft start
Safe start up into prebias output
Up to 4A continuous current

Benefits

Improve efficiency at light loads or use fixed frequency operating mode
High switching frequency to minimize passives (inductor, capacitors)
Small size reduce board space. QFN thermally enhance for power dissipation
Protect IC against faults
Reduce inrush current during start up
Prevents reverse current flow from output capacitor

Applications

5V and 3.3V POL applications

End Products

servers/desktops/notebooks
solid state drives
base station/networking
Automotive infotainment

Data Sheets (1)

Document Title	Document ID/Size	Revision	Revision Date
4 A Integrated Synchronous Buck Converter	NCP3134/D (146kB)	1

Package Drawings (1)

Document Title	Document ID/Size	Revision
QFN16 3x3, 0.5P	485DA (32.7kB)	A

Order Information

Product	Status	Compliance	Package		MSL*	Container		Budgetary Price/Unit
NCP3134MNTXG	Active	Pb-free Halide free	QFN-16	485DA	1	Tape and Reel	3000	$0.5

Specifications

Product	Topology	Control Mode	VCC Min (V)	VCC Max (V)	VO Typ (V)	IO Typ (A)	Efficiency (%)	fSW Typ (kHz)
NCP3134MNTXG	Step-Down	Voltage Mode	2.9	5.5	1.5	4	94	2200

4 A Integrated Synchronous Buck Converter (146kB) NCP3134

QFN16 3x3, 0.5P NCP3135