NJU7744F15 [NJRC]
Fixed Positive LDO Regulator, 1.5V, 0.6V Dropout, CMOS, PDSO5, SOT-23, 5 PIN;
| 型号： | NJU7744F15 |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | Fixed Positive LDO Regulator, 1.5V, 0.6V Dropout, CMOS, PDSO5, SOT-23, 5 PIN 光电二极管 |
| 文件： | 总8页 (文件大小：228K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NJU7741/44
LOW DROPOUT VOLTAGE REGULATOR
GENERALDISCRIPTION
PACKAGE OUTLINE
NJU7741/44 is a low dropout voltage regulator with ON/OFF
control and Output shunt switch.
Advanced CMOS technology achieves high ripple rejection and
ultra low quiescent current.
It is suitable for reset small micro controller and other logic chips.
NJU7744 features shunt switch which improves turn off response
of output voltage when ON/OFF control is used.
NJU7741/44F
FEATURES
Ultra Low quiescent Current
Iq=1.5 Atyp.(IO=0mA)
Output capacitor with 0.1uF ceramic capacitor
Output Current
IO(max.)=100mA
VO 1.0%
0.17V typ. (IO=60mA, VO=3V version)
(Active High)
High Precision Output
Low Dropout Voltage
With ON/OFF Control
With Output Shunt Switch
Only NJU7744
Internal Short Circuit Current Limit
CMOS Technology
Package Outline
SOT-23-5
PIN CONFIGURATION
CONTROL 1
GND 2
5 VIN
4 VOUT
NC 3
NJU7741/44F
BLOCK DIAGRAM
VIN
VOUT
VIN
VOUT
Output
Control
Output
Control
CONTROL
CONTROL
Current
Limit
Current
Limit
Vref
Vref
GND
GND
NJU7741
NJU7744
Ver.2016-02-17
- 1 -
NJU7741/44
OUTPUTVOLTAGE RANK LIST
DEVICE NAME
NJU774*F15
NJU774*F18
NJU774*F19
NJU774*F02
NJU774*F25
NJU774*F27
VOUT
1.5V
1.8V
1.9V
2.0V
2.5V
2.7V
DEVICE NAME
NJU774*F28
NJU774*F29
NJU774*F03
NJU774*F31
NJU774*F33
NJU774*F37
VOUT
2.8V
2.9V
3.0V
3.1V
3.3V
3.7V
DEVICE NAME
NJU774*F04
NJU774*F45
NJU774*F05
NJU774*F06
VOUT
4.0V
4.5V
5.0V
6.0V
ABSOLUTE MAXIMUM RATINGS
(Ta=25 C)
PARAMETER
Input Voltage
SYMBOL
VIN
RATINGS
+10
UNIT
V
Control Voltage
VCONT
+10(*1)
V
380(*2)
510(*3)
Power Dissipation
PD
SOT-23-5
mW
Operating Temperature
Storage Temperature
Output Sink Current
at OFF-state(*4)
Topr
Tstg
−40 +85
−40 +125
C
C
IO
10
mA
(*1) :When input voltage is less than +10V, the absolute maximum control voltage is equal to the input voltage.
(*2) : Mounted on glass epoxy board. (76.2×114.3×1.6mm:basedon EIA/JDEC standard, 2Layers)
(*3) : Mounted on glass epoxy board. (76.2×114.3×1.6mm:basedon EIA/JDEC standard, 4Layers), internal Cu area: 74.2x74.2mm
(*4) : This maximum rating is applied to NJU7744.
ELECTRICALCHARACTERISTICS (VIN=VO+1V, CIN=0.1 F, CO=0.1 F, Ta=25 C)
PARAMETER
Output Voltage
SYMBOL
VO
TESTCONDITION
MIN.
−1.0%
–
TYP.
–
MAX.
+1.0%
9
UNIT
V
IO=30mA
Input Voltage
VIN
IQ
–
V
Quiescent Current
IO =0mA, VCONT=VIN,Except ICONT
VCONT=0V
–
1.5
3.5
A
Quiescent Current
at Control OFF
IQ(OFF)
–
0.1
1
A
Output Current
IO
VO−0.3V
100
–
–
–
–
mA
mA
Short Circuit Limit
ILIM
VO=0V
25
VIN= VO+1V VO+6.0V(VO<3.0V)
VIN= VO+1V 9.0V(VO≥3.0V), IO=30mA
Line Regulation
Load Regulation
–
–
0.30
%/V
VO / VIN
VO / VO
–
–
–
–
–
–
–
–
0.15
0.60
0.29
0.27
0.26
0.24
0.22
%/mA
Io=0 100mA
Io=40mA
Io=60mA
1.5V≤VO≤2.0V
2.0V≤VO≤2.4V
2.5V≤VO≤2.7V
2.8V≤VO≤3.3V
3.4V≤VO≤5.0V
5.1V≤VO≤6.0V
0.19
0.19
0.18
0.17
0.16
0.15
V
V
V
V
V
V
Dropout Voltage
VI-O
Average Temperature
Coefficient of Output
Voltage
–
–
VO / Ta
Ta=0 85 C, IO=10mA
100
ppm/ C
Pull-down Resistance
RCONT
2
1.6
0
5
–
–
10
VIN
0.3
M
V
V
Control Voltage for ON-State
Control Voltage for OFF-State
VCONT(ON)
VCONT(OFF)
Pull-down Resistance at
OFF-state(note 5)
RO(OFF)
VCONT=0V (VO=3.0V Version)
–
300
–
(*5) This electrical characteristics is applied to NJU7744.
The above specification is a common specification for all voltages.
Therefore, it may be different from the individual specification for a specific output Voltage.
Ver.2016-02-17
- 2 -
NJU7741/44
THERMALCHARACTERISTICS
PARAMETER
Junction-to-ambient
thermal resistance
Junction-to-Top of package
characterization parameter
SYMBOL
ja
VALUE
UNIT
C/W
260(*6)
195(*7)
70(*6)
jt
C/W
60(*7)
(*6) : Mounted on glass epoxy board. (76.2×114.3×1.6mm:basedon EIA/JDEC standard, 2Layers)
(*7) : Mounted on glass epoxy board. (76.2×114.3×1.6mm:basedon EIA/JDEC standard, 4Layers), internal Cu area: 74.2x74.2mm
POWER DISSIPATION vs.AMBIENTTEMPERATURE
NJU7741/44F Power Dissipation
(Topr=-40～+85℃,Tj=125℃)
600
500
on 4 layers board
400
on 2 layers board
300
200
100
0
-50
-25
0
25
50
75
100
Ambient Temperature Ta(℃)
TEST CIRCUIT
IIN
VOUT
VIN
A
IOUT
VOUT
V
VIN
NJU7741/44
0.1 F
0.1 F
(Ceramic)
ICONT
CONTROL
A
GND
VCONT
V
Ver.2016-02-17
- 3 -
NJU7741/44
TYPICALAPPLICATION
In case that ON/OFF Control is not required:
VIN
VOUT
VOUT
VIN
CO
0.1 F
CIN
0.1 F
NJU7741/44
CONTROL
GND
Connect control terminal to VIN pin.
In use of ON/OFF Control
VOUT
VIN
VOUT
VIN
CO
CIN
0.1 F
0.1 F
NJU7741/44
CONTROL
GND
State of control pin:
● “H” output is enabled.
● “L” or “open” output is disabled.
*Transient response characteristic of Output Voltage
In general, overshoot or undershoot of output voltage may occur due to the transient response characteristic of an
internal error amplifier.
Especially, low current consumption regulator may have overshoot or undershoot due to slow feedback caused by
current saving design.
Therefore, design validation is important in the following cases:
1. Input voltage or output current change sharply
2. Output capacitors is small
3. Output load is light
4. A regulator starts up with very low dropout voltage operation.
Increasing the value of input and/or output capacitor is a common countermeasure for improving a transient
response characteristic.
A transient response characteristic may vary with operating conditions and external components value.
Please check it with the actual environment.
Ver.2016-02-17
- 4 -
NJU7741/44
*Input Capacitor CIN
The input capacitor CIN is required to prevent oscillation and reduce power supply ripple for applications when high
power supply impedance or a long power supply line.
Therefore, use the recommended CIN value (refer to conditions of ELECTRIC CHARACTERISTIC) or larger and
should connect between GND and VIN as shortest path as possible to avoid the problem
*Output Capacitor CO
The output capacitor CO will be required for a phase compensation of the internal error amplifier.
The capacitance and the equivalent series resistance (ESR) influence to stable operation of the regulator.
Use of a smaller CO may cause excess an output noise or an oscillation of the regulator due to lack of the
phase compensation.
On the other hand, use of a larger CO reduces an output noise and a ripple output, and also improves an
output transient response when a load rapidly changes.
Therefore, use the recommended CO value (refer to conditions of ELECTRIC CHARACTERISTIC) or larger
and should connect between GND and VOUT as shortest path as possible for stable operation
The recommended capacitance depends on the output voltage rank. Especially, a low voltage regulator requires
larger CO value.
Ver.2016-02-17
- 5 -
NJU7741/44
TYPICALCHARACTERISTICS
NJU7741/44_3.0V
Output Voltage vs. Input Voltage
NJU7741/44_3.0V
Output Voltage vs. Output Current
@:Ta=25oC
Co=0.1 F(Ceramic)
4
3.5
3
3.4
3.2
3
Io=0A
2.5
2
2.8
2.6
2.4
1.5
1
Io=40mA
Io=100mA
@:Ta=25oC
VIN=4.0V
Co=0.1 F(Ceramic)
0.5
0
2.6
2.8
3
3.2
3.4
3.6
3.8
0
50
100
150 200
Input Voltage : VIN(V)
Output Current : Io(mA)
NJU7741/44_3.0V
NJU7741/44_3.0V
Ground Pin Current v.s. Output Current
Dropout Voltage vs. Output Current
@:Ta=25oC
0.5
40
Co=0.1 F(Ceramic)
35
30
25
20
15
10
5
0.4
0.3
0.2
0.1
0
@:Ta=25oC
VIN=4.0V
Co=0.1 F(Ceramic)
0
10
30
50
70
90
0
20
40
60
(mA)
80
100
Output Current : I
O
Output Current:Io(mA)
NJU7741/44_3.0V
Quiescent Current v.s. Input Voltage
16
14
12
10
8
@:Ta=25oC
Output is open.
Co=0.1 F(Ceramic)
including Icont
6
4
2
0
0
2
4
6
8
10
Input Voltage : VIN(V)
Ver.2016-02-17
- 6 -
NJU7741/44
TYPICALCHARACTERISTICS
NJU7741/44_3.0V
Output Voltage v.s. Temperature
NJU7741/44_3.0V
Dropout Voltage v.s. Temperature
3.1
3.05
3
0.15
0.1
0.05
0
@:VIN=4V
Io=30mA
@:Io=60mA
Co=0.1 F(Ceramic)
Co=0.1 F(Ceramic)
2.95
2.9
-50
0
50
100
150
-50
0
50
100
150
Temperature Ta (oC)
Temperature : Ta (oC)
NJU7741/44_3.0V
Quiescent Current v.s. Temperature
NJU7741/44_3.0V
Line Regulation v.s. Temperature
5
4
3
2
1
0
0.2
@:dVIN=4-9V
Io=30mA
Co=0.1 F(Ceramic)
0.15
0.1
0.05
0
@:VIN=4V
Output is open.
Co=0.1 F(Ceramic)
-50
0
50
100
150
-50
0
50
100
150
Temperature : Ta (oC)
Temperature : Ta (oC)
NJU7741/44_3.0V
Short Circuit Current v.s. Temperature
NJU7741/44_3.0V
Load Regulation v.s. Temperature
100
0.06
0.05
0.04
0.03
0.02
0.01
0
@:VIN=4V
Output is short to ground.
Co=0.1 F(Ceramic)
@:VIN=4V
Io=0-100mA
Co=0.1 F(Ceramic)
80
60
40
20
0
-50
0
50
Temperature : Ta (oC)
100
150
-50
0
50
Temperature : Ta (oC)
100
150
Ver.2016-02-17
- 7 -
NJU7741/44
[CAUTION]
Thespecificationsonthisdatabookareonly
givenforinformation,withoutanyguarantee
asregardseither mistakesoromissions.The
applicationcircuitsinthisdatabookare
describedonlytoshowrepresentativeusages
oftheproductandnotintendedforthe
guaranteeorpermissionofanyrightincluding
theindustrialrights.
Ver.2016-02-17
- 8 -
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