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.2006-09-26
-1-
NJM2867/68
OUTPUT VOLTAGE RANK LIST
NJM2867
Device Name
V
OUT
Device Name
NJM2867F3-/F21
2.1V
NJM2867F3-/F29
NJM2867F3-/F24
2.4V
NJM2867F3-/F03
NJM2867F3-/F25
2.5V
NJM2867F3-/F31
NJM2867F3-/F26
2.6V
NJM2867F3-/F32
NJM2867F3-/F27
2.7V
NJM2867F3-/F33
NJM2867F3-/F28
2.8V
NJM2867F3-/F34
NJM2868
Device Name
NJM2868F21
NJM2868F24
NJM2868F25
NJM2868F26
NJM2868F27
NJM2868F28
V
OUT
2.9V
3.0V
3.1V
3.2V
3.3V
3.4V
Device Name
NJM2867F3-/F38
NJM2867F3-/F04
NJM2867F3-/F445
NJM2867F3-/F05
V
OUT
3.8V
4.0V
4.45V
5.0V
V
OUT
2.1V
2.4V
2.5V
2.6V
2.7V
2.8V
Device Name
NJM2868F29
NJM2868F03
NJM2868F31
NJM2868F32
NJM2868F33
NJM2868F34
V
OUT
2.9V
3.0V
3.1V
3.2V
3.3V
3.4V
Device Name
NJM2868F38
NJM2868F04
NJM2868F445
NJM2868F05
V
OUT
3.8V
4.0V
4.45V
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.2006-09-26
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
Output Voltage
Quiescent Current
Quiescent Current
at Control OFF
Output Current
Line Regulation
Load Regulation
Dropout Voltage
Ripple Rejection
Average Temperature
Coefficient of Output
Voltage
Output Noise Voltage
Control Current
Control Voltage for ON-state
Control Voltage for OFF-state
SYMBOL
Vo
I
Q
I
Q(OFF)
Io
∆Vo/∆V
IN
∆Vo/∆Io
∆V
I
−
O
RR
∆Vo/∆Ta
V
NO
I
CONT
V
CONT(ON)
V
CONT(OFF)
Io=30mA
Io=0mA, expect I
CONT
V
CONT
=0V
Vo-0.3V
V
IN
=Vo+1V
∼
Vo+6V, Io=30mA
Io=0
∼
60mA
Io=60mA
ein=200mVrms, f=1kHz, Io=10mA,
Vo=3V Version
Ta=0
∼
85°C, Io=10mA
f=10Hz
∼
80kHz, Io=10mA,
Vo=3V Version
V
CONT
=1.6V, Io=0mA
TEST CONDITION
MIN.
-1.0%
−
−
100
−
−
−
−
−
−
−
1.6
−
TYP.
−
120
−
130
−
−
0.10
75
±
50
40
−
−
−
MAX.
+1.0%
180
100
−
0.10
0.03
0.18
−
−
−
12
−
0.6
UNIT
V
µA
nA
mA
%/V
%/mA
V
dB
ppm/°C
µVrms
µA
V
V
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
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.2006-09-26
-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
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.
In the case of using a resistance "R" between V
IN
and control.
The current flow into the control terminal while the IC is ON state (I
CONT
) can be reduced when a pull up resistance
"R" is inserted between V
IN
and the control terminal.
The minimum control voltage for ON state (V
CONT (ON)
) is increased due to the voltage drop caused by I
CONT
and the
resistance "R". The I
CONT
is temperature dependence as shown in the "Control Current vs. Temperature"
characteristics. Therefore, the resistance "R" should be carefully selected to ensure the control voltage exceeds the
V
CONT (ON)
over the required temperature range.
-4-
Ver.2006-09-26
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.2006-09-26
-5-
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