NJM2860
LOW DROPOUT VOLTAGE REGULATOR
s
GENERAL DESCRIPTION
The NJM2860 is a low dropout voltage regulator.
Advanced Bipolar technology achieves low noise, high ripple
rejection and low quiescent current.
It features small SC-88A package.
s
FEATURES
qHigh
Ripple Rejection
70dB typ. (f=1kHz)
qOutput
Noise Voltage
Vno=30µVrms (Cp=0.01µF)
qOutput
capacitor with 1.0uF ceramic capacitor (Vo≥2.7V)
qOutput
Current
Io(max.)=100mA
qHigh
Precision Output
Vo±1.0%
qLow
Dropout Voltage
0.10V typ. (Io=60mA)
qON/OFF
Control
(Active High)
qInternal
Short Circuit Current Limit
qInternal
Thermal Overload Protection
qBipolar
Technology
qPackage
Outline
SC88A
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PIN CONFIGURATION
1
2
3
4
5
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PACKAGE OUTLINE
NJM2860F3
NJM2860F3
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EQUIVALENT CIRCUIT
V
IN
Cont
PIN FUNCTION
1. CONTROL (Active High)
2. GND
3. NOISE BYPASS
4. V
OUT
5. V
IN
V
OUT
Thermal
Protection
Noise
Bypass
Bandgap
Reference
GND
s
OUTPUT VOLTAGE RANK LIST
Device Name
V
OUT
Device Name
NJM2860F3-21
2.1V
NJM2860F3-31
NJM2860F3-33
NJM2860F3-25
2.5V
NJM2860F3-26
2.6V
NJM2860F3-35
NJM2860F3-27
2.7V
NJM2860F3-38
NJM2860F3-28
2.8V
NJM2860F3-04
NJM2860F3-285 2.85V
NJM2860F3-46
NJM2860F3-03
3.0V
NJM2860F3-47
V
OUT
3.1V
3.3V
3.5V
3.8V
4.0V
4.6V
4.7V
Device Name
NJM2860F3-05
V
OUT
5.0V
NJM2860
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ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Input Voltage
V
IN
Control Voltage
V
CONT
Power Dissipation
P
D
Operating Temperature
Topr
Storage Temperature
Tstg
(Ta=25°C)
RATINGS
UNIT
+14
V
+14(note 1)
V
250(note 2)
mW
−40 ∼
+85
°C
−40 ∼
+125
°C
(note 1) When input voltage is less than +14V, the absolute maximum
control voltage is equal to the input voltage.
(note 2) On glass epoxy board. (50×50×1.6mm)
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ELECTRICAL CHARACTERISTICS
(V
IN
=Vo+1V, C
IN
=0.1µF, Co=1.0uF: Vo≥2.7V (Co=2.2uF: Vo≤2.6V), Cp=0.01µF, Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP. MAX.
Output Voltage
Vo
Io=30mA
-1.0%
+1.0%
−
Io=0mA, expect Icont
Quiescent Current
120
180
I
Q
−
Quiescent Current
V
CONT
=0V
100
I
Q(OFF)
−
−
at Control OFF
Output Current
Io
100
130
-
Vo−0.3V
Line Regulation
0.10
∆Vo/∆V
IN
V
IN
=Vo+1V
∼
Vo+6V, Io=30mA
−
−
Load Regulation
0.03
∆Vo/∆Io
Io=0
∼
60mA
−
−
Dropout Voltage
Io=60mA
0.10
0.18
∆V
I−O
−
ein=200mVrms,f=1kHz, Io=10mA,
Ripple Rejection
RR
70
−
−
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
30
−
−
Vo=3V Version
Control Voltage for
1.6
V
CONT(ON)
−
−
ON-state
Control Voltage for
V
CONT(OFF)
0.6
−
−
OFF-state
(note 3) 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.
s
TEST CIRCUIT
UNIT
V
µA
nA
mA
%/V
%/mA
V
dB
ppm/°C
µVrms
V
V
A
V
IN
I
IN
V
IN
V
OUT
1.0uF
OR
2.2uF(Vo<2.6V)
(Ceramic
Capacitor)
I
OUT
V
V
OUT
0.1uF
I
CONT
A
V
V
CONT
CONTROL
NOISE
BYPASS
Cp=0.01uF
GND
NJM2860
s
TYPICAL APPLICATION
x
In the case where ON/OFF Control is not required:
V
IN
V
IN
V
OUT
1.0uF
OR
2.2uF(Vo<2.6V)
(Ceramic
Capacitor)
V
OUT
0.1uF
R
(0~300kΩ )
CONTROL
NOISE
BYPASS
Cp=0.01uF
GND
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”.
y
In use of ON/OFF CONTROL:
V
IN
V
OUT
1.0uF
OR
2.2uF(Vo<2.6V)
(Ceramic
Capacitor)
R
CONTROL
NOISE
BYPASS
Cp=0.01uF
GND
V
IN
V
OUT
0.1uF
State of control terminal:
•“H”→
output is enabled.
•
“L” or “open”
→
output is disabled.
✱Noise
bypass Capacitance Cp
Noise bypass capacitance Cp reduces noise generated by band-gap reference circuit.
Noise level and ripple rejection will be improved when larger Cp is used.
Use of smaller Cp value may cause oscillation.
Use the Cp value of 0.01uF greater to avoid the problem.
NJM2860
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TYPICAL CHARACTERISTICS
NJM2860
s
TYPICAL CHARACTERISTICS
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