NJM2867/68
LOW DROPOUT VOLTAGE REGULATOR
GENERAL DESCRIPTION
The NJM2867/68 is a 100mA output low dropout voltage
regulator with ON/OFF control.
Advanced Bipolar technology achieves low noise, high ripple
rejection and low quiescent current.
Small packaging, 0.1µF small decoupling capacitor, built-in noise
bypass capacitor make the NJM2865/66 suitable for space
conscious applications.
PACKAGE OUTLINE
NJM2867F3
NJM2867F/NJM2868F
FEATURES
High Ripple Rejection
75dB typ. (f=1kHz Vo=3V Version)
Output Noise Voltage
Vno=40µVrms typ.
Output capacitor with 0.1µF ceramic capacitor (Vo≥2.8V)
Output Current
Io(max.)=100mA
High Precision Output
Vo±1.0%
Low Dropout Voltage
0.10V typ. (Io=60mA)
ON/OFF Control
(Active High)
Internal Short Circuit Current Limit
Internal Thermal Overload Protection
Bipolar Technology
Package Outline
SC88A (NJM2867F3), SOT-23-5 (NJM2867F/NJM2868F)
PIN CONFIGURATION
5
4
1 2 3
PIN FUNCTION
1.CONTROL
2.GND
3.NC
4.V
OUT
5.V
IN
5
4
1 2 3
PIN FUNCTION
1. V
IN
2.GND
3.CONTROL
4.NC
5.V
OUT
NJM2867F/NJM2867F3
NJM2868F
EQUIVALENT CIRCUIT
V
IN
Control
Bandgap
Reference
Thermal
Protection
V
OUT
GND
Ver.2004-12-22
-1-
NJM2867/68
OUTPUT VOLTAGE RANK LIST
NJM2867
Device Name
NJM2867F3-/F21
NJM2867F3-/F24
NJM2867F3-/F25
NJM2867F3-/F26
NJM2867F3-/F28
NJM2868
Device Name
NJM2868F21
NJM2868F24
NJM2868F25
NJM2868F26
NJM2868F28
V
OUT
2.1V
2.4V
2.5V
2.6V
2.8V
Device Name
NJM2867F3-/F29
NJM2867F3-/F03
NJM2867F3-/F31
NJM2867F3-/F32
NJM2867F3-/F33
V
OUT
2.9V
3.0V
3.1V
3.2V
3.3V
Device Name
NJM2867F3-/F34
NJM2867F3-/F38
NJM2867F3-/F05
V
OUT
3.4V
3.8V
5.0V
V
OUT
2.1V
2.4V
2.5V
2.6V
2.8V
Device Name
NJM2868F29
NJM2868F03
NJM2868F31
NJM2868F32
NJM2868F33
V
OUT
2.9V
3.0V
3.1V
3.2V
3.3V
Device Name
NJM2868F34
NJM2868F38
NJM2868F05
V
OUT
3.4V
3.8V
5.0V
RATINGS
+14
+14
(*1)
SC88A
250
(*2)
Power Dissipation
P
D
mW
200
(*3)
SOT-23-5
350
(*2)
Operating Temperature
°C
Topr
-40∼+85
Storage Temperature
°C
Tstg
-40∼+125
(*1): When input voltage is less than +14V, the absolute maximum control voltage is equal to the input voltage.
(*2): Mounted on glass epoxy board based on EIA/JEDEC. (114.3x76.2x1.6mm: 2Layers)
(*3): Device itself.
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Input Voltage
V
IN
Control Voltage
V
CONT
(Ta=25°C)
UNIT
V
V
-2-
Ver.2004-12-22
NJM2867/68
ELECTRICAL CHARACTERISTICS
(V
IN
=Vo+1V, C
IN
=0.1µF, Co=0.1µF(2.3V<Vo≤2.8V : Co=0.22µF, Vo≤2.3V:Co=0.47µF), Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP.
Output Voltage
Vo
Io=30mA
-1.0%
−
Quiescent Current
I
Q
Io=0mA, expect Icont
120
−
Quiescent Current
V
CONT
=0V
I
Q(OFF)
−
−
at Control OFF
Output Current
Io
Vo-0.3V
100
130
Line Regulation
∆Vo/∆V
IN
V
IN
=Vo+1V
∼
Vo+6V, Io=30mA
−
−
Load Regulation
∆Vo/∆Io
Io=0
∼
60mA
−
−
Io=60mA
0.10
Dropout Voltage
∆V
I−O
−
ein=200mVrms,f=1kHz, Io=10mA,
Ripple Rejection
RR
75
−
Vo=3V Version
Average Temperature
Coefficient of Output
∆Vo/∆Ta
Ta=0
∼
85°C, Io=10mA
±
50
−
Voltage
f=10Hz
∼
80kHz, Io=10mA,
Output Noise Voltage
V
NO
40
−
Vo=3V Version
Control Voltage for
1.6
V
CONT(ON)
−
ON-state
Control Voltage for
V
CONT(OFF)
−
−
OFF-state
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.
TEST CIRCUIT
MAX.
+1.0%
180
100
−
0.10
0.03
0.18
−
−
−
−
0.6
UNIT
V
µA
nA
mA
%/V
%/mA
V
dB
ppm/°C
µVrms
V
V
A
V
IN
I
IN
V
IN
V
OUT
0.1µF
*4
(ceramic)
0.1µF
NJM2867/68
I
OUT
V
V
OUT
A
V
V
CONT
I
CONT
CONTROL
GND
*4
2.3V<Vo≤2.8V version: Co=0.22µF(ceramic)
Vo≤2.3V version: 0.47µF(ceramic)
Ver.2004-12-22
-3-
NJM2867/68
TYPICAL APPLICATION
1
In the case where ON/OFF Control is not required:
V
IN
0.1µF
R
(0~300kΩ)
CONTROL
V
IN
V
OUT
V
OUT
NJM2867/68
0.1µF
*5
GND
*5
2.3V<Vo≤2.8V version: Co=0.22µF
Vo≤2.3V version: 0.47µF
Connect control terminal to V
IN
terminal
The quiescent current can be reduced by using a resistance “R”. Instead, it increases the minimum operating
voltage. For further information, please refer to Figure “Output Voltage vs. Control Voltage”.
2
In use of ON/OFF CONTROL:
V
IN
V
IN
V
OUT
V
OUT
0.1µF
R
NJM2867/68
0.1µF
*5
CONTROL
GND
*5
2.3V<Vo
≤
2.8V version: Co=0.22
µ
F
Vo
≤
2.3V version: 0.47
µ
F
State of control terminal:
•“H”→
output is enabled.
•“L”
or “open”
→
output is disabled.
-4-
Ver.2004-12-22
NJM2867/68
POWER DISSIPATION vs. AMBIENT TEMPERATURE
NJM2867/68F Power Dissipation
(Topr=-40½+85℃,Tj=125℃,P
D
=200mW(Ta≦25℃))
500
Power Dissipation P
D
(mW)
400
On Board(114.3×76.2×1.6mm, FR-4)
300
Device itself
200
100
0
-50
-25
0
25
50
75
100
Ambient Temperature Ta(℃)
NJM2867F3 Power Dissipation
(Topr=-40½+85℃,Tj=125℃)
500
Power Dissipation P
D
(mW)
400
300
On Board(114.3×76.2×1.6mm, FR-4)
200
100
0
-50
-25
0
25
50
75
100
Ambient Temperature Ta(℃)
Ver.2004-12-22
-5-
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