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NJM12856
- 1 - Ver.2015-07-21
LDO with Reverse Current Protection / Soft Start / Discharge Function
GENERAL DESCRIPTION ■ PACKAGE OUTLINE The NJM12856 is a low dropout regulator which achieves
high ripple rejection, low noise and high speed response with the bipolar technology.
Adjustable soft-start function is useful for reducing inrush current and controlling power-on sequence. Moreover the discharge function makes effective sequence control with the soft-start function.
In addition, the reverse current protection makes external SBD unnecessary.
FEATURE
Operating Voltage Range 2.5V ~ 6.5V Output Voltage Accuracy VO 1.0% Output Current IO(min.)=1000mA Reverse Current Protection Adjustable soft-start Function Discharge Function ON/OFF Control Correspond to Low ESR capacitor (MLCC) Thermal Shutdown Circuit Over Current Protection Circuit Package Outline SOT-89-5, TO-252-5
PIN CONFIGRATION
BLOCK DIAGRAM
NJM12856U2 NJM12856DL3
NJM12856U2 NJM12856DL3
VOUT GND
CS
VIN CONTROL 1
2 3 4 5
3
VOUT
GND
VIN
Thermal Protection
Bandgap Reference
CONTROL
Over Current Protection
Reverse Current Protection
CS
CS
GND
VOUT VIN
CONTROL 33
22
11
4
5
2 GND
NJM12856
- 2 - Ver.2015-07-21
OUTPUT VOLTAGE RANK LIST SOT-89-5 TO-252-5
Device Name Output Voltage Device Name Output
Voltage NJM12856U2-15 1.5V NJM12856DL3-15 1.5V NJM12856U2-18 1.8V NJM12856DL3-18 1.8V NJM12856U2-25 2.5V NJM12856DL3-25 2.5V NJM12856U2-33 3.3V NJM12856DL3-33 3.3V NJM12856U2-05 5.0V NJM12856DL3-05 5.0V
ABSOLUTE MAXIMUM RATINGS (Ta=25 C)
PARAMETER SYMBOL MAXIMUM RATING UNIT Input Voltage VIN -0.3 ~ +7 V Control Pin Voltage VCONT -0.3 ~ +7 V
Output Voltage VOUT Vo 1.8V -0.3 ~ +5.5 V Vo 1.8V -0.3 ~ +7 V
Soft start Pin Voltage VCS -0.3 ~ +2.5 V
Power Dissipation PD SOT-89-5 625(*1)
mW 2400(*2)
TO-252-5 1190(*1) 3125(*2)
Junction Temperature Range Tj -40 +150 C Operating Temperature Range Topr -40 +125 C Storage Temperature Range Tstg -50 +150 C
(*1): Mounted on glass epoxy board. (76.2 114.3 1.6mm:based on EIA/JDEC standard size, 2Layers, Cu area 100mm2) (*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)
Operating Voltage Range :VIN=2.5V ~ 6.5V
NJM12856
- 3 - Ver.2015-07-21
ELECTRICAL CHARACTERISTICS
(Unless other noted, VIN = VO + 1V, CIN = 0.33µF, CO =0.47µF(CO=1.0µF :2.4V Vo 2.9V, CO=2.2µF :1.7V Vo 2.4V, Co=4.7µF :Vo 1.7V), Cs=0.01µF, Ta = 25°C)
PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Output Voltage VO IO=200mA -1.0% - +1.0% V
Quiescent Current IQ IO = 0mA, except ICONT - 400 600 μA Quiescent Current at OFF-state IQ(OFF) VCONT = 0V - - 10 μA
Output Current IO VO 0.9 1000 - - mA Line Regulation VO/ VIN VIN = VO + 1V ~ 6.5V, Io=200mA - - 0.15 %/V
Load Regulation VO/ IO IO = 0 ~ 1000mA - - 0.003 %/mA
Dropout Voltage (*3) VIO IO=600mA - 0.20 0.28 V Average Temperature Coefficient of Output Voltage VO/ Ta Ta= -40 ~ +125 C, IO=200mA - 50 - ppm/ C
Ripple Rejection RR
VIN =3.0V ein=200mVrms, f=1kHz, Io=10mA
Vo=1.5V - 78 -
dB
Vo=1.8V - 76 -
ein=200mVrms, f=1kHz, Io=10mA
Vo=2.5V - 73 -
Vo=3.3V - 72 -
Vo=5.0V - 68 -
Output Noise Voltage VNO f=10Hz ~ 80kHz, Io=10mA
Vo=1.5V - 17 -
μVrms Vo=1.8V - 19 -
Vo=2.5V - 24 -
Vo=3.3V - 30 -
Vo=5.0V - 42 -
Control Current ICONT VCONT =1.6V - 3 12 μA Control Voltage at ON-state VCONT(ON) 1.6 - - V
Control Voltage at OFF-state VCONT(OFF) - - 0.6 V
Soft Start Time tS(ON) VCONT=L→H, Io=200mA, Cs=0.022μF - 1.2 - msec
Discharge Current at OFF-state IDIS
VIN=2.5V, VCONT=0V, VO =0.5V 3 10 mA
VIN=6.5V, VCONT=0V, VO =0.5V 15 25
(*3): Except Output Voltage Rank less than 2.2V The above specification is a common specification for all output voltages. Therefore, it may be different from the individual specification for a specific output voltage.
NJM12856
- 4 - Ver.2015-07-21
POWER DISSIPATION vs. AMBIENT TEMPERATURE
TEST CIRCUIT
NJM12856 VIN
VIN VOUT
CONTROL
GND
IIN
ICONT
VCONT
0.47μF (ceramic)
IOUT VOUT
V
V
A
A
Cs
0.33μF (ceramic)
0.01μF (ceramic)
*4: 2.4V<Vo 2.9V version: Co=1.0 F(Ceramic) 1.7V<Vo 2.4V version: Co=2.2 F(Ceramic)
Vo 1.7V version: Co=4.7 F(Ceramic)
(*4)
NJM12856DL3 PowerDissipation(Topr=-40~+125°C,Tj=150°C)
0
500
1000
1500
2000
2500
3000
3500
-50 -25 0 25 50 75 100 125 150Temperature : Ta(°C)
Pow
er D
issi
patio
n P D
(mW
)
on 4 layers board
on 2 layers board
NJM12856U2 PowerDissipation(Topr=-40~+125°C,Tj=150°C)
0
500
1000
1500
2000
2500
3000
-50 -25 0 25 50 75 100 125 150Temperature : Ta(°C)
Pow
er D
issi
patio
n P D
(mW
)
on 4 layers board
on 2 layers board
NJM12856
- 5 - Ver.2015-07-21
TYPICAL APPLICATION
1. In the case where ON/OFF Control is not required
NJM12856
VIN VOUT
CONTROL
GND
0.33μF 0.47μF
VOUT VIN
Cs
(*5)
*Connected when soft start is Required.
*5: 2.4V<Vo 2.9V version: Co=1.0 F 1.7V<Vo 2.4V version: Co=2.2 F
Vo 1.7V version: Co=4.7 F
Connect CONTROL Pin to VIN Pin 2. In use of ON/OFF CONTROL
NJM12856
VIN VOUT
CONTROL
GND
0.33μF 0.47μF
VOUT VIN
Cs
(*6)
*Connected when soft start is Required.
*6: 2.4V<Vo 2.9V version: Co=1.0 F 1.7V<Vo 2.4V version: Co=2.2 F
Vo 1.7V version: Co=4.7 F
State of CONTROL Pin: “H” → output is enabled. “L” or “open” → output is disabled
NJM12856
- 6 - Ver.2015-07-21
*Reverse Current Protection
The NJM12856 has built-in Reverse Current Protection circuit. This circuit prevents the large reverse current when output voltage is higher than input voltage.
Therefore external schottky-barrier diode(SBD) is not required *Soft Start capacitor Cs The Soft Start function can control the rise time of Output Voltage and reduce the inrush current by connecting the Cs
capacitor. The Soft Start time is defined as 10% to 90% of the Output Voltage.
The Cs capacitor is not essential, but it used for noise bypass of bandgap reference either. Therefore Output Noise Voltage increases when the capacitor isn't connected. If the Cs capacitor is not used, the Cs Pin should be OPEN.
0.001
0.01
0.1
1
10
100
0.001 0.01 0.1 1 10 100 1000
Soft
Star
t Tim
e: t S
(ON
) (m
s)
Cs Pin Capacitor : Cs (nF)
NJM12856Soft Start Time vs Cs Pin Capacitor
@:Ta=25oCVo_rise=10%-90%
0
0.5
1
1.5
2
2.5
3
-50 -25 0 25 50 75 100 125 150
Soft
Star
t Tim
e: ts
(ms)
Temperature: (ºC)
NJM12856Soft Start Time vs Temperature
@:Cs=0.022µFVo_rise=10%-90%
Soft-Start Time vs. Cs Pin Capacitor Soft-Start Time (0.022μF) vs. Temperature
0
50
100
150
200
250
300
0.001 0.01 0.1 1 10 100 1000
Out
put N
oise
Vol
tage
:VN
O(μ
Vrm
s)
Cs Pin Capacitor : Cs (nF)
NJM12856_3.3VOutput Noise Voltage vs Cs Pin Capacitor
@:Ta=25oCVIN=4.3VIo=10mACIN=0.33μF(Ceramic)Co=0.47μF(Ceramic)
0
50
100
150
200
250
300
350
400
450
0.001 0.01 0.1 1 10 100 1000
Inru
sh C
urre
nt :I
RU
SH(m
A)
Cs Pin Capacitor : Cs (nF)
NJM12856_3.3VInrush Current vs Cs Pin capacitor
@:Ta=25ºCVIN=4.3VIo=30mACIN=0.33μFCo=0.47μF
Output Noise Voltage vs. Cs Pin Capacitor Inrush Current vs. Cs Pin Capacitor
NJM12856
- 7 - Ver.2015-07-21
*Discharge Function The NJM12856 has a built-in discharge circuit to discharge the charged output capacitors. Discharge circuit operates when the CONTROL Pin is set in LOW level. The circuit discharges the charged output
capacitors rapidly.
0 4 8 12 16 20
2
0
1
NJM12856_3.3VON/OFF Transient Response without Load
Con
trol V
olta
ge:V
CO
NT
(V)
Out
put V
olta
ge:V
o (V
)
10
0 4
5
Time:t (ms)
3
Control Voltage
Output Voltage
@Ta=25 CVIN=4.3VIo=0mACIN=0.33μFCo=0.47μFCs=0.01μF
Output Voltage sweep down characteristics by Discharge function
*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. 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 an output voltage and superior
temperature characteristics though this product is designed stability works with wide range ESR of capacitor including low ESR products.
NJM12856
- 8 - Ver.2015-07-21
TYPICAL CHARACTERISTICS
3
3.1
3.2
3.3
3.4
3.5
3.6
3 3.1 3.2 3.3 3.4 3.5 3.6
Out
put V
olta
ge:V
O(V
)
Input Voltage:VIN (V)
NJM12856_3.3VOutput Voltage vs Input Voltage
Io=500mA
Io=1000mA
Io=0A
Io=100mA
@:Ta=25oCCIN=0.33 F(Ceramic)Co=0.47 F(Ceramic)Cs=0.01 F(Ceramic)
0
0.5
1
1.5
2
2.5
3
3.5
4
0 500 1000 1500 2000 2500O
utpu
t Vol
tage
: V O
(V)
Output Current : Io (mA)
NJM12856_3.3VOutput Voltage vs Output Current
Ta=-40℃
Ta=25℃
Ta=150℃
@:VIN=4.3VCIN=0.33 F(Ceramic)Co=0.47 F(Ceramic)Cs=0.01 F(Ceramic)
0
5
10
15
20
25
30
35
40
45
50
0 200 400 600 800 1000
GN
D P
in C
urre
nt:I G
ND
(mA
)
Output Current : Io (mA)
NJM12856_3.3VGND Pin Current vs Output Current
@:Ta=25oCVIN=4.3VCIN=0.33 F(Ceramic)Co=0.47 F(Ceramic)Cs=0.01 F(Ceramic)
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0 200 400 600 800 1000
Dro
pout
Vol
tage
:ΔV I
O(V
)
Output Current : Io (mA)
NJM12856_3.3VDropout Voltage vs Output Current
@:Ta=25oCCIN=0.33 F(Ceramic)Co=0.47 F(Ceramic)Cs=0.01 F(Ceramic)
0
5
10
15
20
25
30
0 1 2 3 4 5 6 7
Con
trol
Cur
rent
:I CO
NT
(A)
Control Voltage:VCONT (V)
NJM12856_3.3VControl Current vs Control Voltage
@:Ta=25oCVIN=4.3VCIN=0.33 F(Ceramic)Co=0.47 F(Ceramic)Cs=0.01 F(Ceramic)
0
0.5
1
1.5
2
2.5
3
3.5
4
0 0.5 1 1.5 2 2.5 3
Out
put V
olta
ge:V
O(V
)
Control Voltage:VCONT (V)
NJM12856_3.3VOutput Voltage vs Control Voltage
@:Ta=25oCVIN=4.3VCIN=0.33 F(Ceramic)Co=0.47 F(Ceramic)Cs=0.01 F(Ceramic)
NJM12856
- 9 - Ver.2015-07-21
-80
-70
-60
-50
-40
-30
-20
-10
0
0 200 400 600 800 1000
Load
Reg
ulat
ion
: ΔVo
/ΔIo
(mV)
Output Current : Io (mA)
NJM12856_3.3VLoad Regulation vs Output Current
@:Ta=25oCVIN=4.3VCIN=0.33 F(Ceramic)Co=0.47 F(Ceramic)Cs=0.01 F(Ceramic)
0
1000
2000
3000
4000
5000
6000
0 1 2 3 4 5 6 7
Qui
esce
nt C
urre
nt:I Q
(μA)
Input Voltage:VIN (V)
NJM12856_3.3VQuiescent Current vs Input Voltage
@:Ta=25oCOutput is Openexcept ICONTCIN=0.33 F(Ceramic)Co=0.47 F(Ceramic)Cs=0.01 F(Ceramic)
0
500
1000
1500
2000
2500
3000
4 4.5 5 5.5 6 6.5 7
Peak
Out
put C
urre
nt :
I OPE
AK
(mA
)
Input Voltage:VIN (V)
NJM12856_3.3VPeak Output Current vs Input Voltage
@:Ta=25oCVo=2.97VCIN=0.33 F(Ceramic)Co=0.47 F(Ceramic)Cs=0.01 F(Ceramic)
0
100
200
300
400
500
600
700
800
4 4.5 5 5.5 6 6.5 7
Shor
t Circ
uit C
urre
nt :
I SC
(mA
)
Input Voltage:VIN (V)
NJM12856_3.3VShort Circuit Current vs Input Voltage
@:Ta=25oCVO=0VCIN=0.33 F(Ceramic)Co=0.47 F(Ceramic)Cs=0.01 F(Ceramic)
0
5
10
15
20
25
30
35
40
45
50
0 1 2 3 4 5 6 7
Dis
char
ge C
urre
nt :I
DIS
(mA
)
Output Voltage:VO (V)
NJM12856_3.3VDischarge Current vs Output Voltage
VIN=4.3VVIN=7.0V
@Ta=25ºCVCONT=0VCIN=0.33µF(Ceramic)Co=0.47µF(Ceramic) Cs=0.01µF(Ceramic)
-2-1.5
-1-0.5
00.5
11.5
22.5
33.5
4
0 1 2 3 4 5 6 7
Rev
erse
Cur
rent
: I R
V(m
A)
Input Voltage:VIN (V)
NJM12856_3.3VReverse Current vs Input Voltage
@:Ta=25oCVIN=VCONTVo=3.3V-7.0VCIN=0.33µF(Ceramic)Co=0.47µF(Ceramic) Cs=0.01µF(Ceramic)
Reverse Current
Quiescent Current
NJM12856
- 10 - Ver.2015-07-21
0
10
20
30
40
50
60
70
80
90
100
0.001 0.01 0.1 1 10 100 1000
Out
put N
oise
Vol
tage
:VN
O(μ
Vrm
s)
Output Current :Io (mA)
NJM12856_3.3VOutput Noise Voltage vs Output Current
@:Ta=25oCVIN=4.3VCIN=0.33μF(Ceramic)Co=0.47μF(Ceramic)Cs=0.01μF(Ceramic)
0.01
0.1
1
10
100
0.001 0.01 0.1 1 10 100 1000
Equi
vale
nt S
eris
e R
esis
tanc
e : E
SR (
Ω)
Output Current : Io (mA)
NJM12856_3.3VEquivalent Serise Resistance vs Output Current
@CIN=0.33μF(Ceramic)Co=0.47μF(Ceramic)Cs=0.01μF(Ceramic)
STABLE REGION
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100 1000
Rip
ple
Rej
ectio
n :R
R(d
B)
Frequency :f (kHz)
NJM12856_3.3VRipple Rejection Ratio vs Frequency
Io=0mA Io=10mAIo=30mA Io=100mAIo=200mA Io=500mAIo=1000mA
@:Ta=25oCVIN=4.3Vein=200mVrmsCIN=0.33μF(Ceramic)Co=0.47μF(Ceramic)Cs=0.01μF(Ceramic)
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100 1000
Rip
ple
Rej
ectio
n R
atio
:RR
(dB
)
Output Current :Io (mA)
NJM12856_3.3VRipple Rejection Ratio vs Output Current
f=1kHz
f=10kHz
@:Ta=25oCVIN=4.3Vein=200mVrmsCIN=0.33μF(Ceramic)Co=1μF(Ceramic)Cs=0.01μF(Ceramic)
3.2
3.22
3.24
3.26
3.28
3.3
3.32
3.34
3.36
3.38
3.4
-50 -25 0 25 50 75 100 125 150
Out
put V
olta
ge: V
O(V
)
Temperature: (ºC)
NJM12856_3.3VOutputVoltage vs Temperature
Io=0mA
Io=30mA
Io=200mA
Io=500mA
Io=1000mA
@:VIN=4.3VCIN=0.33µF(Ceramic)Co=1.0µF(Ceramic)Cs=0.01µF(Ceramic)
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
-50 -25 0 25 50 75 100 125 150
Dro
pout
Vol
tage
:ΔV I
O(V
)
Temperature: (ºC)
NJM12856_3.3VDropout Voltage vs Temperature
@:Io=600mACIN=0.33µF(Ceramic)Co=1.0µF(Ceramic)Cs=0.01µF(Ceramic)
NJM12856
- 11 - Ver.2015-07-21
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
-50 -25 0 25 50 75 100 125 150
Con
trol
Vol
tage
: VC
ON
T(V
)
Temperature: (ºC)
NJM12856_3.3VControl Voltage vs Temperature
@:VIN=4.3VCIN=0.33µF(Ceramic)Co=1.0µF(Ceramic)Cs=0.01µF(Ceramic)
0
2
4
6
8
10
12
-50 -25 0 25 50 75 100 125 150
Con
trol
Cur
rent
: IC
ON
T(μ
A)
Temperature: (ºC)
NJM12856_3.3VControl Current vs Temperature
@:VCONT=1.6VCIN=0.33µF(Ceramic)Co=1.0µF(Ceramic)Cs=0.01µF(Ceramic)
0
100
200
300
400
500
600
-50 -25 0 25 50 75 100 125 150
Qui
esen
t Cur
rent
:IQ
(μA)
Temperature: (ºC)
NJM12856_3.3VQuiesent Current vs Temperature
@:VIN=4.3VOutput is Openexcept ICONTCIN=0.33µF(Ceramic)Co=1.0µF(Ceramic)Cs=0.01µF(Ceramic)
0
5
10
15
20
25
30
35
40
-50 -25 0 25 50 75 100 125 150
Dis
char
ge C
urre
nt: I
DIS
(mA)
Temperature: (ºC)
NJM12856_3.3VDischarge Current vs Temperature
VIN=6.5V
VIN=2.5V
@:VCONT=0VVO=0.5VCIN=0.33µF(Ceramic)Co=1.0µF(Ceramic)Cs=0.01µF(Ceramic)
-0.1
-0.05
0
0.05
0.1
0.15
0.2
0.25
0.3
-50 -25 0 25 50 75 100 125 150
Line
Reg
ulat
ion:
ΔVo
/ΔV I
N(%
/V)
Temperature: (ºC)
NJM12856_3.3VLine Regulation vs Temperature
@:VIN=4.3-6.5V Io=200mACIN=0.33µF(Ceramic)Co=1.0µF(Ceramic)Cs=0.01µF(Ceramic)
0.000
0.001
0.002
0.003
0.004
0.005
0.006
0.007
0.008
0.009
0.010
-50 -25 0 25 50 75 100 125 150
Load
Reg
ulat
ion:
ΔVo
/ΔIo
(%/m
A)
Temperature: Ta (ºC)
NJM12856_3.3VLoad Regulation vs Temperature
@:VIN=4.3V Io=0-1000mACIN=0.33µF(Ceramic)Co=1.0µF(Ceramic)Cs=0.01µF(Ceramic)
NJM12856
- 12 - Ver.2015-07-21
0
500
1000
1500
2000
2500
-50 -25 0 25 50 75 100 125 150
Peak
Out
put C
urre
nt :I
OPE
AK
(mA)
Temperature: (ºC)
NJM12856_3.3VPeak Output Current vs Temperature
@:VIN=4.3V VO=2.97VCIN=0.33µF(Ceramic)Co=1.0µF(Ceramic)Cs=0.01µF(Ceramic)
0
100
200
300
400
500
600
700
800
900
1000
-50 -25 0 25 50 75 100 125 150
Shor
t Circ
uit C
urre
nt: I
SC(m
A)
Temperature: (ºC)
NJM12856_3.3VShort Circuit Current vs Temperature
@:VIN=4.3V VO=0VCIN=0.33µF(Ceramic)Co=1.0µF(Ceramic)Cs=0.01µF(Ceramic)
0
0.5
1
1.5
2
2.5
3
3.5
4
-50 -25 0 25 50 75 100 125 150 175 200
Out
put V
olta
ge: V
O(V
)
Temperature: (ºC)
NJM12856_3.3VOutputVoltage vs Temperature
@:VIN=4.3VCIN=0.33µF(Ceramic)Co=1.0µF(Ceramic)Cs=0.01µF(Ceramic)
NJM12856
- 13 - Ver.2015-07-21
3.3
2.8
2.3
0 40 80 200Time:t (μs)
120 160
3.8
0
200
400
Out
put C
urre
nt :
Io (m
A)
Out
put V
olta
ge:V
o (V
)
NJM12856_3.3VLoad transient Response
Output Current
Output Voltage
@Ta=25 CVIN=4.3VIo=10mA-200mACIN=0.33μFCo=0.47μFCs=0.01μF
3.3
2.8
2.3
0 40 80 200
NJM12856_3.3VLoad transient Response
Out
put C
urre
nt:Io
(mA
)
Out
put V
olta
ge:V
o (V
)
1000
500
0
3.8
120 160Time:t (μs)
Output Current
Output Voltage
@Ta=25 CVIN=4.3VIo=100mA-500mACIN=0.33μFCo=4.7μFCs=0.01μF
0 40 80 200160120
3.30
3.25
3.35
NJM12856_3.3VInput transient Response
6
5
Inpu
t Vol
tage
:V
IN (V
)
Out
put V
olta
ge:V
o (V
)
4
Time:t (μs)
Input Voltage
Output Voltage
@Ta=25 CVIN=4.3-5.3VIo=200mACIN=0.33μFCo=0.47μFCs=0.01μF
0 4 8 20
2
12 16
0
1
NJM12856_3.3VON/OFF Transient Response
Con
trol V
olta
ge:V
CO
NT
(V)
Out
put V
olta
ge:V
o (V
)
10
5
0 4
Time:t (ms)
3
Control Voltage
Output Voltage
@Ta=25 CVIN=4.3VIo=200mACIN=0.33μFCo=0.47μFCs=0.01μF
4
3
2
1
0
0 1 2 5
NJM12856_3.3VCONTROL_ON Delay Time
Con
trol V
olta
ge:V
CO
NT
(V)
Out
put V
olta
ge:V
o (V
)
10
5
0
Time:t (ms)43
Control Voltage
Output Voltage
@Ta=25 CVIN=4.3VIo=200mACIN=0.33μFCo=0.47μFCs=0.01μF
NJM12856
- 14 - Ver.2015-07-21
[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.