NJW4155 Datasheet, PDF (1/25 Pages) New Japan Radio – Current Mode Control Internal 1.8A MOSFET Switching Regulator IC for Buck Converter

NJW4155
Current Mode Control
Internal 1.8A MOSFET Switching Regulator IC for Buck Converter
GENERAL DESCRIPTION
The NJW4155 is a buck converter with 40V/1.8A MOSFET. It
corresponds to high oscillating frequency, and Low ESR Output
Capacitor (MLCC) within wide input range from 4.5V to 40V.
Therefore, the NJW4155 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.
FEATURES
Current Mode Control
External Clock Synchronization
Wide Operating Voltage Range 4.5V to 40V
Switching Current
2.7A min.
PWM Control
Built-in Compensation Circuit
Correspond to Ceramic Capacitor (MLCC)
Oscillating Frequency
450kHz typ. (A, C ver.)
300kHz typ. (B ver.)
Soft Start Function
4ms typ.
UVLO (Under Voltage Lockout)
Over Current Protection (Hiccup type)
Thermal Shutdown Protection
Power Good Function (NJW4155GM1 only)
Standby Function
Package Outline
NJW4155GM1 : HSOP8
NJW4155DL3 : TO-252-5
■ PACKAGE OUTLINE
NJW4155GM1
NJW4155DL3
Ver.2015-11-13
-1-