NJW4154 Datasheet, PDF (1/22 Pages) New Japan Radio – Switching Regulator IC for Buck Converter

NJW4154
Switching Regulator IC for Buck Converter
Current Mode Control w/ 40V/3A MOSFET
GENERAL DESCRIPTION
The NJW4154 is a buck converter with 40V/3A MOSFET. It
corresponds to high oscillating frequency, and Low ESR Output
Capacitor (MLCC) within wide input range from 4.5V to 40V.
Therefore, the NJW4154 can realize downsizing of applications
with a few external parts so that adopts current mode control.
Also, it has a soft start function, external clock synchronization,
over current protection and thermal shutdown circuit.
It is suitable for supplying power to a Car Accessory, Office
Automation Equipment, Industrial Instrument and so on.
■ PACKAGE OUTLINE
NJW4154GM1
NJW4154DL3
FEATURES
Current Mode Control
External Clock Synchronization
Wide Operating Voltage Range 4.5V to 40V
Switching Current
4.5A min.
PWM Control
Built-in Compensation Circuit
Correspond to Ceramic Capacitor (MLCC)
Oscillating Frequency
300kHz typ. (A ver.)
Soft Start Function
4ms typ.
UVLO (Under Voltage Lockout)
Over Current Protection (Hiccup type)
Thermal Shutdown Protection
Power Good Function (NJW4154GM1 only)
Standby Function
Package Outline
NJW4154GM1 : HSOP8
NJW4154DL3 : TO-252-5
PRODUCT CLASSIFICATION
Part Number
Version
NJW4154GM1-A
A
NJW4154DL3-A
A
Oscillation
Frequency
300kHz typ.
300kHz typ.
Power Good
√
Package
HSOP8
TO-252-5
Operating
Temperature
Range
General Spec.
-40°C to +85°C
General Spec.
-40°C to +85°C
Ver.2013-03-29
-1-