NJW4152-AB
Switching Regulator IC for Buck Converter
w/ 40V/1A MOSFET
GENERAL DESCRIPTION
The
NJW4152
is a buck converter with
40V/1A
MOSFET. It corresponds
to high oscillating frequency, and Low ESR Output Capacitor (MLCC) within
wide input range from 3.6V 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.
■
PACKAGE OUTLINE
NJW4152GM1-AB
FEATURES
Maximum Rating Input Voltage
45V
Wide Operating Voltage Range
3.6V to 40V @AB version
Switching Current
1.4A(min.) @AB version
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
PRODUCT CLASSIFICATION
Part Number
NJW4152GM1-A
NJW4152GM1-A-T
NJW4152GM1-A-T1
NJW4152GM1-AB
NJW4152GM1-AB-T1
NJW4152R-B
NJW4152R-BA-Z
Version
A
A
A
AB
AB
B
BA
Output
Current
1.0A
1.0A
1.0A
1.0A
1.0A
600mA
600mA
Switching
Current Limit
(MIN.)
1.4A
1.4A
1.4A
1.4A
1.4A
0.8A
0.8A
Operating
Voltage
4.6 to 40V
4.6 to 40V
4.6 to 40V
3.6 to 40V
3.6 to 40V
4.6 to 40V
4.4 to 40V
Package
HSOP8
HSOP8
HSOP8
HSOP8
HSOP8
MSOP8
(VSP8)
MSOP8
(VSP8)
Operating
Temperature Range
General Spec.
-40 to +85 C
Automotive T Spec.
-40 to +105 C
Automotive T1 Spec.
-40 to +125 C
General Spec.
-40 to +85 C
Automotive T1 Spec.
-40 to +125 C
General Spec.
-40 to +85 C
Automotive Z Spec.
-40 to +125 C
This data sheet is applied to "NJW4152GM1-AB".
Please refer to each data sheet for other versions.
Ver.2015-11-10
-1-
NJW4152-AB
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
Power Dissipation
Junction Temperature Range
Operating Temperature Range
Storage Temperature Range
P
D
Tj
T
opr
T
stg
MAXIMUM RATINGS
+45
+45
-0.3 to +6
+45
HSOP8
790 (*1)
2,500 (*2)
-40 to +150
-40 to +85
-40 to +150
(Ta=25°C)
UNIT
V
V
V
V
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)
(For 4Layers: Applying 74.2×74.2mm inner Cu area and a thermal via hole to a board based on JEDEC standard JESD51-5)
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
Supply Voltage
V
+
Output Current (*3)
I
OUT
Timing Resistor
R
T
Oscillating Frequency
fosc
(*3): At Static Status
MIN.
3.6
–
18
300
TYP.
–
–
27
700
MAX.
40
1.0
68
1,000
UNIT
V
A
k
kHz
Ver.2015-11-10
-3-
NJW4152-AB
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)
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
SYMBOL
(Unless otherwise noted, V
+
=V
ON/OFF
=12V, R
T
=27k , Ta=25 C)
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
V
T_ON
V
T_OFF
V
HYS
V
+
= L
→
H
V =H
→
L
+
3.2
3.1
60
3.4
3.3
100
3.6
3.5
–
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
+
=4.6V to 40V
Ta=-40 C to +85 C
V
IN-
=0.4V, V
FB
=0.55V
630
–
0.24
–
–
700
270
0.275
1
2
770
–
0.31
–
–
kHz
kHz
V
%
%
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
I
SW
=1A
V
ON/OFF
=0V, V =45V, V
SW
=0V
+
–
1.4
–
0.3
1.7
–
0.5
2.0
1
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.2015-11-10
嵌入式系统
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