NJW4152
Switching Regulator IC for Buck Converter
w/ 40V/1A or 40V/600mA MOSFET
GENERAL DESCRIPTION
The
NJW4152
is a buck converter with
40V/1A
or
40V/600mA
MOSFET.
It corresponds to high oscillating frequency, and Low ESR Output Capacitor
(MLCC) within wide input range from 4.6V to 40V. Therefore, the
NJW4152
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. Moreover there is an automotive for extended operating
temperature range version.
It is suitable for logic voltage generation from high voltage that Car
Accessory, Office Automation Equipment, Industrial Instrument and so on.
FEATURES
Maximum Rating Input Voltage
Wide Operating Voltage Range
Switching Current
■
PACKAGE OUTLINE
NJW4152GM1-A
(HSOP8)
45V
4.6V to 40V
1.4A(min.) @A version
0.8A(min.) @B version
NJW4152R-B
(MSOP8 (VSP8))
PWM Control
Wide Oscillating Frequency
300kHz to 1MHz
Soft Start Function
4ms typ.
UVLO (Under Voltage Lockout)
Over Current Protection / Thermal Shutdown Protection
Standby Function
Package Outline
NJW4152GM1: HSOP8
NJW4152R: MSOP8 (VSP8)*
*MEET JEDEC MO-187-DA
PRODUCT CLASSIFICATION
Part Number
NJW4152GM1-A
NJW4152GM1-AB
NJW4152R-B
Version
A
AB
B
Output
Current
1.0A
1.0A
600mA
Switching
Current Limit
(MIN.)
1.4A
1.4A
0.8A
Operating
Voltage
4.6 to 40V
3.6 to 40V
4.6 to 40V
Package
HSOP8
HSOP8
MSOP8
(VSP8)
This data sheet is applied to "NJW4152GM1-A, NJW4152R-B".
Please refer to each data sheet for other versions.
Ver.2020-02-12
-1-
NJW4152
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Supply Voltage
V
+
(V
+
pin, PV
+
pin)
PV
+
- SW pin Voltage
V
PV-SW
IN- pin Voltage
V
IN-
ON/OFF pin Voltage
V
ON/OFF
(Ta=25°C)
UNIT
V
V
V
V
MAXIMUM RATINGS
+45
+45
-0.3 to +6
+45
790 (*1)
HSOP8
2,500 (*2)
MSOP8(VSP8)
595 (*3)
805 (*4)
Power Dissipation
P
D
mW
C
C
C
(*1): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 2Layers)
(*2): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 4Layers)
Junction Temperature Range
Operating Temperature Range
Storage Temperature Range
Tj
T
opr
T
stg
-40 to +150
-40 to +85
-40 to +150
(For 4Layers: Applying 74.2×74.2mm inner Cu area and a thermal via hole to a board based on JEDEC standard JESD51-5)
(*3): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 2Layers)
(*4): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 4Layers),
internal Cu area: 74.2×74.2mm
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
Supply Voltage
V
+
A version
Output Current (*5)
I
OUT
B version
Timing Resistor
R
T
Oscillating Frequency
fosc
(*5): At Static Status
MIN.
4.6
–
–
18
300
TYP.
–
–
–
27
700
MAX.
40
1.0
0.6
68
1,000
UNIT
V
A
A
k
kHz
Ver.2020-02-12
-3-
NJW4152
ELECTRICAL CHARACTERISTICS
PARAMETER
Under Voltage Lockout Block
ON Threshold Voltage
OFF Threshold Voltage
Hysteresis Voltage
Soft Start Block
Soft Start Time
Oscillator Block
Oscillation Frequency
Oscillation Frequency
(Low Frequency Control)
(Unless otherwise noted, V
+
=V
ON/OFF
=12V, R
T
=27k, Ta=25C)
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
SYMBOL
V
T_ON
V
T_OFF
V
HYS
V
+
= L
→
H
V
+
= H
→
L
4.3
4.2
60
4.5
4.4
100
4.6
4.54
–
V
V
mV
T
SS
V
B
=0.75V
2
4
8
ms
f
OSC
f
OSC_LOW
V
RT
f
DV
f
DT
V
+
=4.6 to 40V
Ta=-40C to +85C
V
IN-
=0.4V, V
FB
=0.55V
630
–
0.24
–
–
700
270
0.275
1
2
770
–
0.31
–
–
kHz
kHz
V
%
%
RT pin Voltage
Oscillation Frequency
deviation (Supply voltage)
Oscillation Frequency
deviation (Temperature)
Error Amplifier Block
Reference Voltage
Input Bias Current
Open Loop Gain
Gain Bandwidth
Output Source Current
Output Sink Current
PWM Comparate Block
Maximum Duty Cycle
Output Block
Output ON Resistance
Switching Current Limit
Switching Leak Current
ON/OFF Block
ON Control Voltage
OFF Control Voltage
Pull-down Resistance
General Characteristics
Quiescent Current
Standby Current
V
B
I
B
A
V
G
B
I
OM+
I
OM-
V
FB
=1V, V
IN-
=0.7V
V
FB
=1V, V
IN-
=0.9V
-1.0%
-0.1
–
–
8
1
0.8
–
80
0.6
16
2
+1.0%
+0.1
–
–
24
4
V
A
dB
MHz
A
mA
M
AX
D
UTY
V
IN-
=0.7V
100
–
–
%
R
ON
I
LIM
I
LEAK
A version, I
SW
=1A
B version, I
SW
=0.6A
A version
B version
V
ON/OFF
=0V, V
+
=45V, V
SW
=0V
–
–
1.4
0.8
–
0.3
0.28
1.7
1.0
–
0.5
0.48
2.0
1.3
1
A
A
A
V
ON
V
OFF
R
PD
V
ON/OFF
= L
→
H
V
ON/OFF
= H
→
L
1.6
0
–
–
–
480
V
+
0.5
–
V
V
k
I
DD
I
DD_STB
R
L
=no load, V
IN-
=0.7V, V
FB
=0.55V
V
ON/OFF
=0V
–
–
2.5
–
2.8
1
mA
A
-4-
Ver.2020-02-12
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