Regulator IC. NJW4150A Datasheet

NJW4150A IC. Datasheet pdf. Equivalent

NJW4150A Datasheet
Recommendation NJW4150A Datasheet
Part NJW4150A
Description Internal 40V MOSFET Switching Regulator IC
Feature NJW4150A; NJW4150A Internal 40V MOSFET Switching Regulator IC for Buck Converter GENERAL DESCRIPTION The NJW.
Manufacture New Japan Radio
Datasheet
Download NJW4150A Datasheet




New Japan Radio NJW4150A
NJW4150A
Internal 40V MOSFET Switching Regulator IC for Buck Converter
GENERAL DESCRIPTION
The NJW4150A is a buck converter with 40V/300mA MOSFET.
It corresponds to high oscillating frequency, and Low ESR Output
Capacitor (MLCC) within wide input range from 6.2V to 40V.
Therefore, the NJW4150A can realize downsizing of an application
with a few external parts.
Also, it has a soft start function, an over current protection and a
thermal shutdown circuit.
It is suitable for logic voltage generation from high voltage that
Car Accessory, Office Automation Equipment, Industrial Instrument
and so on.
PACKAGE OUTLINE
NJW4150ARB1
FEATURES
Maximum Rating Input Voltage 45V
Wide Operating Voltage Range 6.2V to 40V
Switching Current
450mA min.
PWM control
Correspond to Ceramic Capacitor (MLCC)
Oscillating Frequency
1MHz typ. (A ver.)
Soft Start Function
4ms typ.
UVLO (Under Voltage Lockout)
Over Current Protection
Thermal Shutdown Protection
Standby Function
Package Outline
NJW4150ARB1: MSOP8(TVSP8)*
*MEET JEDEC MO-187-DA/THIN TYPE
PRODUCT CLASSIFICATION
Part Number
Version
NJW4150ARB1-A
A
Oscillating
Frequency
1,000kHz typ.
Operating
Temperature Range
General Spec.
-40 C to +125 C
Ver.2015-07-29
-1-



New Japan Radio NJW4150A
NJW4150A
PIN CONFIGURATION
PIN FUNCTION
1 8 1. SW
2
7
2. N.C.
3. V+
3 6 4. ON/OFF
5. FB
4 5 6. IN-
7. N.C.
NJW4150ARB1
8. GND
BLOCK DIAGRAM
V+
ON/OFF
High: ON
Low : OFF
(Standby)
FB
IN-
Standby
ON/OFF
ER AMP
UVLO
OCP
Pulse by Pulse
Low Frequency
Control
OSC
PWM
Buffer
Vref
1.0V
Soft Start
TSD
SW
GND
-2-
Ver.2015-07-29



New Japan Radio NJW4150A
NJW4150A
ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
PARAMETER
Supply Voltage
V+- SW pin Voltage
IN- pin Voltage
ON/OFF pin Voltage
Power Dissipation
Junction Temperature Range
Operating Temperature Range
Storage Temperature Range
SYMBOL
V+
VV-SW
VIN-
VON/OFF
PD
Tj
Topr
Tstg
MAXIMUM RATINGS
-0.3 to +45
+45
-0.3 to +6
-0.3 to +45
580 (*1)
780 (*2)
-40 ~ +150
-40 ~ +125
-50 ~ +150
UNIT
V
V
V
V
mW
C
C
C
(*1): Mounted on glass epoxy board. (76.2 114.3 1.6mm:EIA/JDEC standard size, 2Layers)
(*2): Mounted on glass epoxy board. (76.2 114.3 1.6mm:EIA/JDEC standard size, 4Layers),
internal Cu area: 74.2 74.2mm
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Operating Voltage
SYMBOL
V+
MIN.
6.2
TYP.
MAX.
40
UNIT
V
Ver.2015-07-29
-3-







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