NJM2880U-45 [NJRC]
4.5V FIXED POSITIVE LDO REGULATOR, 0.18V DROPOUT, PDSO5, SOT-89, 5 PIN;型号: | NJM2880U-45 |
厂家: | NEW JAPAN RADIO |
描述: | 4.5V FIXED POSITIVE LDO REGULATOR, 0.18V DROPOUT, PDSO5, SOT-89, 5 PIN ISM频段 光电二极管 输出元件 调节器 |
文件: | 总9页 (文件大小:157K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
NJM2880
LOW DROPOUT VOLTAGE REGULATOR
ꢀ GENERAL DESCRIPTION
ꢀ PACKAGE OUTLINE
The NJM2880 is a low dropout voltage regulator.
Advanced Bipolar technology achieves low noise, high ripple
rejection and low quiescent current.
NJM2880U/U1
ꢀ FEATURES
ꢁ High Ripple Rejection
ꢁ Output Noise Voltage
70dB typ. (f=1kHz,Vo=3V Version)
Vno=30µVrms typ.(Cp=0.01µF)
ꢁ Output capacitor with 1.0uF ceramic capacitor
ꢁ Output Current
ꢁ High Precision Output
ꢁ Low Dropout Voltage
ꢁ ON/OFF Control
Io(max.)=300mA
Vo±1.0%
0.10V typ. (Io=100mA)
(Active High)
ꢁ Internal Short Circuit Current Limit
ꢁ Internal Thermal Overload Protection
ꢁ Bipolar Technology
ꢁ Package Outline
SOT-89-5
ꢀ PIN CONFIGURATION
PIN FUNCTION
1.CONTROL (Active High)
2.GND
5
2
2
4
3
3.NOISE BYPASS
4.VOUT
5.VIN
1
NJM2880U/U1
ꢀ EQUIVALENT CIRCUIT
VIN
VOUT
Cont
Thermal
Protection
Noise
Bandgap
Reference
Bypass
GND
NJM2880
ꢀ OUTPUT VOLTAGE RANK LIST
Device Name
Vout
1.5V
1.6V
1.8V
2.1V
2.5V
2.6V
2.7V
Device Name
Vout
2.8V
Device Name
Vout
4.4V
4.5V
5.0V
NJM2880U/U1-15
NJM2880U/U1-16
NJM2880U/U1-18
NJM2880U/U1-21
NJM2880U/U1-25
NJM2880U/U1-26
NJM2880U/U1-27
NJM2880U/U1-28
NJM2880U/U1-44
NJM2880U/U1-285 2.85V NJM2880U/U1-45
NJM2880U/U1-03
NJM2880U/U1-32
NJM2880U/U1-33
NJM2880U/U1-38
NJM2880U/U1-04
3.0V
3.2V
3.3V
3.8V
4.0V
NJM2880U/U1-05
ꢀ ABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
PARAMETER
SYMBOL
RATINGS
UNIT
Input Voltage
VIN
VCONT
PD
+14
+14(*1)
350
V
Control Voltage
V
Power Dissipation
Operating Temperature
Storage Temperature
mW
°C
°C
Topr
Tstg
-40 +85
-40 +125
(*1) When input voltage is less than +14V, the absolute maximum control voltage is equal to the input
voltage.
ꢀ Operating voltage
VIN=+2.8 +14V (In case of Vo<2.1V version)
ꢀ ELECTRICAL CHARACTERISTICS
(Vo>2.0V version:
VIN=Vo+1V, Co=0.1µF: Vo≥2.7V (Co=2.2µF: Vo≤2.6V), Cp=0.01µF, Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP. MAX. UNIT
Output Voltage
Vo
IQ
Io=30mA
-1.0%
-
-
+1.0%
180
V
Quiescent Current
Quiescent Current
at Control OFF
Output Current
Line Regulation
Load Regulation
Dropout Voltage
Io=0mA, expect Icont
VCONT=0V
120
µA
IQ(OFF)
-
-
100
nA
Vo-0.3V
Io
300
400
-
mA
-
-
-
-
-
0.10
%/V
∆Vo/∆VIN
∆Vo/∆Io
∆VI-O
VIN=Vo+1V Vo+6V, Io=30mA
Io=0 300mA
0.03 %/mA
0.18
Io=100mA
0.10
V
ein=200mVrms,f=1kHz, Io=10mA
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
-
1.6
-
30
-
-
-
µVrms
Control Voltage for
ON-state
VCONT(ON)
VCONT(OFF)
V
V
Control Voltage for
OFF-state
-
0.6
NJM2880
(Vo≤2.0V version:
VIN=Vo+1V, CIN=0.1µF, Co=2.2µF: Vo≥1.9V (Co=4.7µF: Vo≤1.8V), Cp=0.01µF, Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP. MAX. UNIT
Output Voltage
Vo
IQ
Io=30mA
-1.0%
-
-
+1.0%
180
V
Quiescent Current
Quiescent Current
at Control OFF
Output Current
Line Regulation
Load Regulation
Io=0mA, expect Icont
VCONT=0V
120
µA
IQ(OFF)
-
-
100
nA
Vo-0.3V
Io
300
-
-
400
-
-
-
mA
0.10
%/V
∆Vo/∆VIN
∆Vo/∆Io
VIN=Vo+1V Vo+6V, Io=30mA
Io=0 300mA
0.03 %/mA
ein=200mVrms,f=1kHz, Io=10mA
Vo=1.8V Version
Ripple Rejection
RR
-
74
-
dB
Average Temperature
Coefficient of Output
Voltage
-
-
∆Vo/∆Ta
Ta=0 85°C, Io=10mA
±50
ppm/°C
f=10Hz 80kHz, Io=10mA,
Vo=1.8V Version
Output Noise Voltage
VNO
-
1.6
-
18
-
-
-
µVrms
Control Voltage for
ON-state
VCONT(ON)
VCONT(OFF)
V
V
Control Voltage for
-
0.6
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
IIN
V
VOUT
A
1.0µF *2
IN
(ceramic)
IOUT
VOUT
V
VIN
NJM2880
0.1µF
ICONT
NOISE
BYPASS
CONTRO
Cp=0.01µF
GND
VCONT
V
*2 1.9V≤Vo≤2.6V version : Co=2.2µF(ceramic)
Vo≤1.8V version : Co=4.7µF(ceramic)
NJM2880
ꢀ TYPICAL APPLICATION
1 In the case where ON/OFF Control is not required:
V
IN
VIN
VOUT
VOUT
0.1µF
1.0µ
F *3
NJM2880
R
(0~300kΩ)
NOISE
BYPASS
CONTRO
GND
Cp=0.01µF
*3 1.9V≤Vo≤2.6V version : Co=2.2µF
Vo≤1.8V version : Co=4.7µF
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”.
2 In use of ON/OFF CONTROL:
VIN
VIN
VOUT
VOUT
1.0µF *3
NJM2880
0.1µF
BYPASS
CONTRO
Cp=0.01µF
GND
*3 1.9V≤Vo≤2.6V version : Co=2.2
µF
Vo≤1.8V version : Co=4.7
µF
State of control terminal:
•
“H”
→
output is enabled.
output is disabled.
•
“L” or “open”
→
ꢂNoise 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 0.01µF greater to avoid the problem.
NJM2880
ꢀ
ELECTRICAL CHARACTERISTICS
NJM2880_3.0V
Output Voltage vs. Input Voltage
NJM2880_3.0V
Output Voltage vs. Output Current
3.2
4
3.5
3
@:Ta=25oC
@:Ta=25oC
Co=1.0µF(Ceramic)
V
IN=4.0V
Cp=0.01µF
Co=1.0µF(Ceramic)
3.1
3
Cp=0.01µF
Io=0mA
2.5
2
Io=30mA
Io=100mA
2.9
2.8
2.7
1.5
1
0.5
0
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
0
100
200
300
400
500
600
Input Voltage : VIN(V)
Output Current : Io(mA)
NJM2880_3.0V
Ground Pin Current vs. Output Current
NJM2880_3.0V
Dropout Voltage vs. Output Current
20
15
10
5
0.3
0.25
0.2
@:Ta=25oC
V
IN=4.0V
Co=1.0µF(Ceramic)
Cp=0.01µF
0.15
0.1
@:Ta=25oC
0.05
0
V
IN=4.0V
Co=1.0µF(Ceramic)
Cp=0.01µF
0
0
100
200
300
400
500
0
100
200
300
400
500
Output Current : Io(mA)
Output Current : Io(mA)
NJM2880_3.0V
NJM2880_3.0V
Control Current vs. Control Voltage
Output Voltage vs. Control Voltage
60
50
40
30
20
10
0
4
@:Ta=25oC
V
IN=4.0V
3.5
3
Co=1.0µF(Ceramic)
Cp=0.01µF
Io=30mA
Rc=0Ω
2.5
2
Rc=50kΩ
Rc=0Ω
Rc=100kΩ
1.5
1
Rc=50kΩ
Rc=100kΩ
@:Ta=25oC
V
IN=4.0V
Co=1.0µF(Ceramic)
0.5
0
Cp=0.01µF
Io=30mA
0
0.5
1
1.5
2
2.5
3
3.5
4
0
0.5
1
1.5
2
2.5
3
Control Voltage : VCont(V)
Control Voltage : VCont(V)
NJM2880
ꢀ
ELECTRICAL CHARACTERISTICS
NJM2880_3.0V
Peak Output Current vs. Input Voltage
NJM2880_3.0V
Load Regulation vs. Output Current
600
500
400
300
200
100
0
0
-10
-20
-30
-40
-50
-60
@:Ta=25oC
IN=4.0V
@:Ta=25oC
V
Co=1.0µF(Ceramic)
Co=1.0µF(Ceramic)
Cp=0.01µF
Cp=0.01µF
0
100
200
300
400
500
4
6
8
10
12
14
Input Voltage : VIN(V)
Output Current : Io(mA)
NJM2880_3.0V
Output Noise Voltage vs. Output Current
NJM2880_3.0V
Quiescent Current v.s. Input Voltage
100
80
60
40
20
0
2000
1500
1000
500
0
@:Ta=25oC
@:Ta=25oC
V
IN=4.0V
Output is open.
Cp=0.01µF
Co=1.0µF(Ceramic)
Cp=0.01µF
including Icont
Co=1µF(Ceramic)
Co=2.2µF(Ceramic)
0.001
0.01
0.1
1
10
100
0
5
10
15
Input Voltage : VIN(V)
Output Current : Io(mA)
NJM2880_3.0V
NJM2880_3.0V
Ripple Rejection Ratio v.s. Frequency
Ripple Rejection vs. Output Current
100
90
80
70
60
50
40
30
80
70
60
50
40
f=1KHz
Io=0mA
Io=10mA
Io=30mA
f=10KHz
@:Ta=25oC
@:Ta=25oC
eiInN=200mVrms
Co=1µF(Ceramic)
Cp=0.01µF
V
=4.0V
Co=1µF(Ceramic)
Cp=0.01µF
V
IN=4.0V
30
ein=200mVrms
100K
1K
10K
10
100
0.001
0.01
0.1
1
10
100
Frequency : f (Hz)
Output Current : Io(mA)
NJM2880
ꢀ
ELECTRICAL CHARACTERISTICS
NJM2880_3V
Dropout Voltage v.s. Temperature
NJM2880_3.0V
Equivalent Serise Resistance vs. Output Current
0.3
0.25
0.2
100
10
1
@:Io=100mA
Co=1µF(Ceramic)
Cp=0.01µF
@:Ta=25oC
IN=4.0V
V
Co=1.0µF(Ceramic)
Cp=0.01µF
0.15
0.1
STABLE REGION
0.1
0.05
0
1µ
10µ
1m
10m
100m 500m
100µ
-50
-50
-50
0
50
100
150
150
150
Temperature :Ta [oC]
Output Current : Io (A)
NJM2880_3V
Control Voltage v.s. Temperature
NJM2880_3V
Output Voltage v.s. Temperature
2
3.1
3.05
3
@:VIN=4V
@:VIN=4V
Io=30mA
Co=1µF(Ceramic)
Cp=0.01µF
Output is open.
Co=1µF(Ceramic)
Cp=0.01µF
1.5
1
0.5
0
2.95
2.9
-50
0
50
100
150
0
50
100
Temperature :Ta [oC]
Temperature :Ta [oC]
NJM2880_3V
NJM2880_3V
Line Regulation v.s. Temperature
Quiescent Current v.s. Temperature
0.2
0.1
0
300
250
200
150
100
50
@:VIN=4-9V
Io=30mA
Co=1µF(Ceramic)
Cp=0.01µF
@:VIN=4V
Output is open.
Co=1µF(Ceramic)
Cp=0.01µF
-0.1
-0.2
0
0
50
100
-50
0
50
100
150
Temperature :Ta [oC]
Temperature :Ta [oC]
NJM2880
ꢀ
ELECTRICAL CHARACTERISTICS
NJM2880_3V
Output Voltage v.s. Temperature
NJM2880_3V
Load Regulation v.s. Temperature
4
3.5
3
0.03
@:VIN=4V
Io=0-300mA
Co=1µF(Ceramic)
Cp=0.01µF
0.025
0.02
0.015
0.01
0.005
0
2.5
2
1.5
1
@:VIN=4V
Io=30mA
Co=1µF(Ceramic)
Cp=0.01µF
0.5
0
-50
0
50
100
150
200
-50
0
50
100
150
Temperature :Ta [oC]
Temperature :Ta [oC]
NJM2880_3V
Short Circuit Current v.s. Temperature
400
300
200
100
0
@:VIN=4V
Output is short to ground.
Co=1µF(Ceramic)
Cp=0.01µF
-50
0
50
100
150
Temperature :Ta [oC]
NJM2880_3V
ON/OFF Transient Response
NJM2880_3V
ON/OFF Transient Response without Load
7
6
10
5
7
6
10
5
Control Voltage
Control Voltage
5
0
5
0
4
-5
4
-5
Output Voltage
@:Ta=25oC
Output Voltage
@:Ta=25oC
3
-10
-15
-20
-25
-30
3
-10
-15
-20
-25
-30
2
2
1
1
V
IN=4V
VIN=4V
Co=1µF
Cp=0.01µF
Io=30mA
Co=1µF
Cp=0.01µF
Io=0mA
0
0
-1
-1
0
4
8
12
16
20
0
1
2
3
4
5
Time : t [mS]
Time : t [S]
NJM2880
ꢀ
ELECTRICAL CHARACTERISTICS
NJM2880_3V
Line Transient Response
NJM2880_3V
Load Transient Response
3.12
7
6
5
4
3
2
1
0
-1
3.1
3.08
3.06
3.04
3.02
3
350
300
250
200
150
100
50
3.1
Output Current
3.08
Input Voltage
3.06
3.04
Output Voltage
3.02
Output Voltage
3
2.98
2.96
2.94
@:Ta=25oC
Co=1µF
@:Ta=25oC
2.98
0
V
IN=4V
Co=1µF(Ceramic)
Io=30mA
2.96
-50
200
0
40
80
120
Time : t [µS]
160
200
0
40
80
120
160
Time : t [µS]
[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.
相关型号:
NJM2880U21(TE1)
Fixed Positive LDO Regulator, 2.1V, 0.18V Dropout, BIPolar, PDSO6, SOT-89, 5 PIN
NJRC
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