NJU7747F4-02 [NJRC]
Fixed Positive LDO Regulator, 2V, 0.6V Dropout, CMOS, PDSO4, SC-82AB, 4 PIN;
| 型号： | NJU7747F4-02 |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | Fixed Positive LDO Regulator, 2V, 0.6V Dropout, CMOS, PDSO4, SC-82AB, 4 PIN 光电二极管 |
| 文件： | 总8页 (文件大小：139K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NJU7747/48
LOW DROPOUT VOLTAGE REGULATOR
ꢀ GENERAL DISCRIPTION
NJU7747/48 is a low dropout voltage regulator with ON/OFF
control.
ꢀ PACKAGE OUTLINE
Advanced CMOS technology achieves ultra low quiescent current.
SC-82AB package and 0.1µF small output capacitor make the
NJU7747/48 suitable for space conscious applications.
NJU7747/48F4
NJU7748 features shunt switch which improves turn off response
of output voltage when ON/OFF control is used.
ꢀ FEATURES
ꢁ Ultra Low quiescent Current
Iq=1.5µA typ.(IO=0mA)
ꢁ Output capacitor with 0.1uF ceramic capacitor
ꢁ Output Current
IO(max.)=100mA
VO±1.0%
0.17V typ. (IO=40mA, VO=3V version)
ꢁ High Precision Output
ꢁ Low Dropout Voltage
ꢁ With ON/OFF Control
ꢁ With Output Shunt Switch
(Active High)
Only NJU7748
ꢁ Internal Short Circuit Current Limit
ꢁ CMOS Technology
ꢁ Package Outline
SC-82AB
ꢀ PIN CONFIGURATION
PIN FUNCTION
1.CONTROL
2.GND
4
1
3
2
3. VOUT
4. VIN
NJU7747/48F4
ꢀ EQUIVALENT CIRCUIT
VIN
VOUT
VIN
VOUT
Output
Control
Output
Control
CONTROL
CONTROL
Current
Limit
Current
Limit
Vref
Vref
GND
GND
NJU7747
NJU7748
Ver.2013-06-07
- 1 -
NJU7747/48
ꢀ OUTPUT VOLTAGE RANK LIST
DEVICE NAME
NJU774*F4-15
NJU774*F4-18
NJU774*F4-19
NJU774*F4-02
NJU774*F4-25
NJU774*F4-27
VOUT
1.5V
1.8V
1.9V
2.0V
2.5V
2.7V
DEVICE NAME
NJU774*F4-28
NJU774*F4-29
NJU774*F4-03
NJU774*F4-31
NJU774*F4-33
NJU774*F4-37
VOUT
2.8V
2.9V
3.0V
3.1V
3.3V
3.7V
DEVICE NAME
NJU774*F4-04
NJU774*F4-45
NJU774*F4-05
VOUT
4.0V
4.5V
5.0V
ꢀABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
PARAMETER
Input Voltage
SYMBOL
VIN
RATINGS
UNIT
V
+10
Control Voltage
VCONT
+10(*1)
V
250(*2)
390(*3)
Power Dissipation
PD
mW
Operating Temperature
Storage Temperature
Output Sink Current
at OFF-state(*3)
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:based on EIA/JDEC standard, 2Layers)
(*3): Mounted on glass epoxy board. (76.2×114.3×1.6mm:based on EIA/JDEC standard, 4Layers), internal Cu area: 74.2×74.2mm
(*4): This maximum rating is applied to NJU7748.
ꢀ ELECTRICAL CHARACTERISTICS (VIN=VO+1V, CIN=0.1µF, CO=0.1µF, Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
−1.0%
–
TYP.
–
MAX. UNIT
IO=30mA
+1.0%
9
V
V
Output Voltage
Input Voltage
Quiescent Current
Quiescent Current
at Control OFF
Output Current
Short Circuit Limit
Line Regulation
Load Regulation
VO
VIN
IQ
–
1.5
IO =0mA, VCONT=VIN, Except ICONT
VCONT=0V
–
3.5
µA
IQ(OFF)
–
0.1
1
µA
IO
ILIM
VO−0.3V
VO=0V
100
–
–
25
–
–
mA
mA
VIN= VO+1V∼VO+6.0V(VO<3.0V)
VIN= VO+1V∼9.0V(VO≥3.0V), IO=30mA
–
–
0.30
%/V
∆VO /∆VIN
–
–
–
–
–
–
–
0.15 %/mA
∆VO /∆VO Io=0∼100mA
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
0.19
0.19
0.18
0.17
0.16
0.60
0.29
0.27
0.26
0.24
V
V
V
V
V
Io=40mA
Dropout Voltage
∆VI-O
Io=60mA
Average Temperature
Coefficient of Output Voltage
–
–
∆VO /∆Ta Ta=0∼85°C, IO=10mA
±100
ppm/°C
Pull-down Resistance
Control Voltage for ON-State
Control Voltage for OFF-State
RCONT
2
1.6
0
5
–
–
10
VIN
0.3
MΩ
V
V
VCONT(ON)
VCONT(OFF)
Pull-down Resistance at
OFF-state(*4)
RO(OFF) VCONT=0V (VO=3.0V Version)
–
300
–
Ω
(*4) This electrical characteristics is applied to NJU7748.
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.2013-06-07
- 2 -
NJU7747/48
ꢀ POWER DISSIPATION vs. AMBIENT TEMPERATURE
NJU7747/48F4 Power Dissipation
(Topr=-40～+85℃,Tj=125℃)
500
400
300
200
100
0
On 4 layers Board
On 2 layers Board
-50
-25
0
25
50
75
100
Ambient Temperature Ta(℃)
ꢀ TEST CIRCUIT
IIN
A
VOUT
VIN
IOUT
VOUT
V
VIN
NJU7747/48
0.1µF
µ
0.1 F
(Ceramic)
ICONT
CONTROL
GND
A
VCONT
V
Ver.2013-06-07
- 3 -
NJU7747/48
ꢀ TYPICALAPPLICATION
1 In case that ON/OFF Control is not required:
VOUT
VIN
VOUT
VIN
CO
0.1µF
CIN
0.1 F
µ
NJU7747/48
CONTROL
GND
Connect control pin to VIN pin.
2 In use of ON/OFF Control
VOUT
VIN
VOUT
VIN
CO
CIN
0.1µF
µ
0.1 F
NJU7747/48
CONTROL
GND
State of control pin:
● “H” → output is enabled.
● “L” or “open” → output is disabled.
Ver.2013-06-07
- 4 -
NJU7747/48
*Input Capacitor CIN
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
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 output noise or oscillation of the regulator due to lack of the phase
compensation.
On the other hand, Use of a larger CO reduces output noise and ripple output, and also improves output
transient response when rapid load change.
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
In addition, you should consider varied characteristics of capacitor (a frequency characteristic, a temperature
characteristic, a DC bias characteristic and so on) and unevenness peculiar to a capacitor supplier enough.
When selecting CO, recommend that have withstand voltage margin against output voltage and superior temperature
characteristic though this product is designed stability works with wide range ESR of capacitor including low ESR
products.
Ver.2013-06-07
- 5 -
NJU7747/48
ꢀ TYPICAL CHARACTERISTICS
NJU7747/48_3.0V
Output Voltage vs. Input Voltage
NJU7747/48_3.0V
Output Voltage vs. Output Current
@:Ta=25oC
Co=0.1µF(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=0.1µF(Ceramic)
0.5
0
2.6
2.8
3
3.2
3.4
3.6
3.8
0
50
100
Output Current : Io(mA)
150 200
Input Voltage : VIN(V)
NJU7747/48_3.0V
Dropout Voltage vs. Output Current
NJU7747/48_3.0V
Ground Pin Current v.s. Output Current
0.5
40
@:Ta=25oC
Co=0.1µF(Ceramic)
35
30
25
20
15
10
5
0.4
0.3
0.2
0.1
0
@:Ta=25oC
VIN=4.0V
Co=0.1µF(Ceramic)
0
10
30
50
70
90
0
20
40
60
(mA)
80
100
Output Current : I
O
Output Current:Io(mA)
NJU7747/48_3.0V
Quiescent Current v.s. Input Voltage
16
14
12
10
8
@:Ta=25oC
Output is open.
Co=0.1µF(Ceramic)
including Icont
6
4
2
0
0
2
4
6
8
10
Input Voltage : VIN(V)
Ver.2013-06-07
- 6 -
NJU7747/48
ꢀ TYPICAL CHARACTERISTICS
NJU7747/48_3.0V
Output Voltage v.s. Temperature
NJU7747/48_3.0V
Dropout Voltage v.s. Temperature
3.1
3.05
3
0.15
0.1
0.05
0
@:VIN=4V
Io=30mA
Co=0.1µF(Ceramic)
@:Io=60mA
Co=0.1µF(Ceramic)
2.95
2.9
-50
0
50
100
150
-50
0
50
100
150
Temperature : Ta (oC)
Temperature Ta (oC)
NJU7747/48_3.0V
Quiescent Current v.s. Temperature
NJU7747/48_3.0V
Line Regulation v.s. Temperature
5
4
3
2
1
0
0.2
@:dVIN=4-9V
Io=30mA
Co=0.1µF(Ceramic)
0.15
0.1
0.05
0
@:VIN=4V
Output is open.
Co=0.1µF(Ceramic)
-50
0
50
100
150
-50
0
50
100
150
Temperature : Ta (oC)
Temperature : Ta (oC)
NJU7747/48_3.0V
Short Circuit Current v.s. Temperature
NJU7747/48_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=0.1µF(Ceramic)
@:VIN=4V
Io=0-100mA
Co=0.1µF(Ceramic)
80
60
40
20
0
-50
0
50
Temperature : Ta (oC)
100
150
-50
0
50
Temperature : Ta (oC)
100
150
Ver.2013-06-07
- 7 -
NJU7747/48
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
Ver.2013-06-07
- 8 -
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