NJM2862F285 [NJRC]
LOW DROPOUT VOLTAGE REGULATOR; 低压差稳压器
| 型号： | NJM2862F285 |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | LOW DROPOUT VOLTAGE REGULATOR |
| 文件： | 总4页 (文件大小：41K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NJM2861/62
Preliminary
LOW DROPOUT VOLTAGE REGULATOR
ꢀ GENERAL DESCRIPTION
ꢀ PACKAGE OUTLINE
The NJM2861/62 are low dropout voltage regulators.
Advanced Bipolar technology achieves low noise, high
ripple rejection and low quiescent current.
ꢀ FEATURES
NJM2861F
NJM2862F
ꢀHigh Ripple Rejection
ꢀOutput Noise Voltage
70dB typ. (f=1kHz)
Vno=30µVrms (Cp=0.01µF)
ꢀOutput capacitor with 1.0uF ceramic capacitor (Vo≥2.7V)
ꢀOutput Current
Io(max.)=100mA
Vo±1%
0.10V typ. (Io=60mA)
(Active High)
ꢀHigh Precision Output
ꢀLow Dropout Voltage
ꢀON/OFF Control
ꢀInternal Short Circuit Current Limit
ꢀInternal Thermal Overload Protection
ꢀBipolar Technology
ꢀPackage Outline
MTP5 (MTP5:2.8×2.9×1.1mm)
ꢀ PIN CONFIGURATION
PIN FUNCTION
1. CONTROL (Active High)
2. GND
3. NOISE BYPASS
4. VOUT
5. VIN
PIN FUNCTION
1.VIN
1
2
3
5
1
2
3
5
4
2.GND
3.CONTROL (Active High)
4.NOISE BYPASS
5.VOUT
4
NJM2861F
NJM2862F
ꢀ EQUIVALENT CIRCUIT
VIN
VOUT
Cont
Thermal
Protection
Noise
Bypass
Bandgap
Reference
GND
ꢀ OUTPUT VOLTAGE RANK LIST
Device Name
NJM286×F21
NJM286×F25
NJM286×F26
VOUT
2.1V
2.5V
2.6V
Device Name
NJM286×F33
NJM286×F38
NJM286×F05
VOUT
3.3V
3.8V
5.0V
2.7V
2.8V
2.85V
3.0V
NJM286×F27
NJM286×F28
NJM286×F285
NJM286×F03
NJM2861/62
Preliminary
ꢀ ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL
Input Voltage
(Ta=25°C)
RATINGS
UNIT
V
V
mW
°C
°C
VIN
VCONT
PD
+14
+14(note 1)
200
−40 +85
−40 +125
Control Voltage
Power Dissipation
Operating Temperature
Storage Temperature
Topr
Tstg
(note 1) When input voltage is less than +14V, the absolute maximum
control voltage is equal to the input voltage.
ꢀ ELECTRICAL CHARACTERISTICS
(VIN=Vo+1V, CIN=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
SYMBOL
Vo
IQ
TEST CONDITION
MIN. TYP. MAX. UNIT
Io=30mA
-1%
+1%
180
V
−
Io=0mA, expect Icont
120
−
µA
Quiescent Current
at Control OFF
Output Current
Line Regulation
Load Regulation
Dropout Voltage
IQ(OFF)
VCONT=0V
100
nA
−
−
Io
100
−
−
130
−
−
-
mA
%/V
Vo−0.3V
VIN=Vo+1V Vo+6V, Io=30mA
Io=0 60mA
0.10
0.03 %/mA
0.18
∆Vo/∆VIN
∆Vo/∆Io
∆VI−O
Io=60mA
0.10
V
−
ein=200mVrms,f=1kHz, Io=10mA
VIN=Vo+1V, Vo=3V Version
Ripple Rejection
RR
70
dB
−
−
Average Temperature
Coefficient of Output
Voltage
∆Vo/∆Ta
Ta=0 85°C, Io=10mA
−
±50
−
ppm/°C
f=10Hz 80kHz, Io=10mA,
Vo=3V Version
Output Noise Voltage
VNO
30
−
−
1.6
−
−
−
µVrms
Control Voltage for
ON-state
Control Voltage for
OFF-state
VCONT(ON)
VCONT(OFF)
V
V
0.6
−
(note 2) 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
IIN
A
VIN
VOUT
IOUT
VOUT
V
VIN
0.1uF
ICONT
1.0uF
OR
2.2uF(Vo 2.6V)
≤
(ceramic)
NOISE
BYPASS
A
CONTROL
Cp=0.01uF
GND
V
VCONT
NJM2861/62
Preliminary
ꢀ TYPICAL APPLICATION
ꢀ
In case that ON/OFF Control is not required:
VIN
VIN
VOUT
VOUT
1.0uF
OR
0.1uF
2.2uF(Vo 2.6V)
≤
(ceramic)
R
(0 300k
)
Ω
NOISE
BYPASS
CONTROL
GND
Cp=0.01uF
Connect control terminal to VIN 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”.
ꢀ
In use of ON/OFF CONTROL:
VIN
VIN
VOUT
VOUT
1.0uF
OR
2.2uF(Vo 2.6V)
≤
0.1uF
(ceramic)
R
NOISE
BYPASS
CONTROL
Cp=0.01uF
GND
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.
NJM2861/62
Preliminary
[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.
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