NJM2860
LOW DROPOUT VOLTAGE REGULATOR
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.
FEATURES
High Ripple Rejection
70dB typ. (f=1kHz,Vo=3V Version)
Output Noise Voltage
Vno=30µVrms typ. (Cp=0.01µF)
Output capacitor with 1.0uF ceramic capacitor (Vo≥2.7V)
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
PIN CONFIGURATION
5
4
s
PACKAGE OUTLINE
NJM2860F3
1 2 3
1. CONTROL (Active High)
2. GND
3. NOISE BYPASS
4. V
OUT
5. V
IN
NJM2860F3
EQUIVALENT CIRCUIT
V
IN
Cont
Bandgap
Reference
Thermal
Protection
Noise
Bypass
V
OUT
GND
OUTPUT VOLTAGE RANK LIST
Device Name
V
OUT
Device Name
NJM2860F3-28
NJM2860F3-15
1.5V
NJM2860F3-285
NJM2860F3-18
1.8V
NJM2860F3-03
NJM2860F3-19
1.9V
NJM2860F3-31
NJM2860F3-21
2.1V
NJM2860F3-32
NJM2860F3-25
2.5V
NJM2860F3-26
2.6V
NJM2860F3-33
NJM2860F3-27
2.7V
NJM2860F3-35
V
OUT
2.8V
2.85V
3.0V
3.1V
3.2V
3.3V
3.5V
Device Name
NJM2860F3-355
NJM2860F3-38
NJM2860F3-04
NJM2860F3-46
NJM2860F3-47
NJM2860F3-05
V
OUT
3.55V
3.8V
4.0V
4.6V
4.7V
5.0V
NJM2860
(Ta=25°C)
RATINGS
UNIT
+14
V
+14(*1)
V
250(*2)
mW
−40 ∼
+85
°C
−40 ∼
+125
°C
(*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)
Operating voltage
V
IN
=+2.3V
∼
+14.0V (In case of Vo<2.1V)
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
Output Voltage
Quiescent Current
Quiescent Current
at Control OFF
Output Current
Line Regulation
Load Regulation
Dropout Voltage
(*3)
Ripple Rejection
Average Temperature
Coefficient of Output
Voltage
Output Noise Voltage
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
V
CONT(ON)
V
CONT(OFF)
Io=30mA
Io=0mA, expect Icont
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
TEST CONDITION
MIN.
-1.0%
−
−
100
−
−
−
−
−
−
1.6
−
TYP.
−
120
−
130
−
−
0.10
70
±50
30
−
−
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
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Input Voltage
V
IN
Control Voltage
V
CONT
Power Dissipation
P
D
Operating Temperature
Topr
Storage Temperature
Tstg
(*3): The output voltage excludes under 2.1V.
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
I
OUT
0.1µF
NJM2860
V
V
OUT
1.0
µ
F
*4
(ceramic)
NOISE
BYPASS
Cp=0.01µF
A
V
V
CONT
I
CONT
CONTROL
GND
*4 Vo≤2.6V version: Co=2.2µF(ceramic)
NJM2860
TYPICAL APPLICATION
1
In the case where ON/OFF Control is not required:
V
IN
0.1µF
V
IN
V
OUT
V
OUT
1.0µF
*5
NJM2860
R
(0∼300kΩ)
CONTROL
GND
NOISE
BYPASS
Cp=0.01µF
*5 Vo≤2.6V version: Co=2.2µF
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
1.0µF
*5
0.1µF
R
CONTROL
GND
NOISE
BYPASS
Cp=0.01µF
NJM2860
*5 Vo≤2.6V version: Co=2.2µF
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
POWER DISSIPATION vs. AMBIENT TEMPERATURE
NJM2860F3 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(℃)
NJM2860
TYPICAL CHARACTERISTICS
NJM2860_3.0V
Output Voltage vs. Input Voltage
@:Ta=25 C
Co=1µF
(Ceramic)
Cp=0.01uF
3.1
3
o
3.2
4
NJM2860_3.0V
Output Voltage vs. Output Current
3.5
Output Voltage : Vo (V)
Output Voltage : Vo(V)
Io=0A
3
2.5
2
2.9
Io=30mA
1.5
1
2.8
Io=80mA
0.5
@:Ta=25 C
V
IN
=4V
Co=1µF
(Ceramic)
Cp=0.01mF
0
50
100
150
200
o
2.7
2.7
0
2.8
2.9
3
3.1
3.2
3.3
3.4
Input Voltage : V
IN
(V)
Output Current : Io(mA)
NJM2860_3.0V
Ground Pin Current vs. Output Current
20
@:Ta=25 C
V
IN
=4V
Co=1µF
(Ceramic)
Cp=0.01mF
o
0.3
NJM2860_3.0V
Dropout Voltage vs. Output Current
@:Ta=25 C
Co=1µF
(Ceramic)
Cp=0.01mF
o
0.25
Ground Pin Current : I
GND
(mA)
15
Dropout Voltage : dV
I-O
(V)
0.2
10
0.15
0.1
5
0.05
0
0
20
40
60
80
100
120
0
0
20
40
60
80
100
120
Output Current : I
O
(mA)
Output Current : Io(mA)
30
NJM2860_3.0V
Control Current vs. Control Voltage
@:Ta=25 C
V
IN
=4V
Co=1µF
(Ceramic)
Cp=0.01µF
Io=30mA
o
4
NJM2860_3.0V
Output Voltage vs. Control Voltage
3.5
25
3
Rc=0Ω
Control Current : Icont( mA)
Output Voltage : Vo(V)
20
2.5
15
Rc=50kΩ
Rc=0Ω
10
2
Rc=100kΩ
1.5
Rc=50kΩ
1
5
0.5
Rc=100kΩ
0
0
0.5
1
1.5
2
2.5
3
3.5
4
0
0
0.5
1
1.5
@:Ta=25 C
V
IN
=4V
Co=1µF
(Ceramic)
Cp=0.01µF
Io=30mA
2
2.5
3
o
Control Voltage : Vcont(V)
Control Voltage : Vcont(V)
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