NJM2817DL3-34 [NJRC]
Fixed Positive LDO Regulator, 3.4V, 0.18V Dropout, BIPolar, PSSO5, TO-252, 5 PIN;型号: | NJM2817DL3-34 |
厂家: | NEW JAPAN RADIO |
描述: | Fixed Positive LDO Regulator, 3.4V, 0.18V Dropout, BIPolar, PSSO5, TO-252, 5 PIN |
文件: | 总10页 (文件大小:243K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
NJM2817
LOW DROPOUT VOLTAGE REGULATOR
ꢀ GENERAL DESCRIPTION
ꢀ PACKAGE OUTLINE
The NJM2817 is a low dropout voltage regulator with ON/OFF
control.
Advanced Bipolar technology achieves low noise, high ripple
rejection and low quiescent current.
NJM2817DL3
It delivers up to 5V/3A output power with the maximum input
voltage of 8V.
The NJM2817 is suitable for audio/video and digital applications.
ꢀ FEATURES
ꢁ High Ripple Rejection
ꢁ Output Noise Voltage
65dB typ. (f=1kHz,3V Version)
Vno=42µVrms typ. (Vo=3V Version)
ꢁ Output capacitor with 4.7µF ceramic capacitor (Vo≥2.1V)
ꢁ Output Current
Io(max.)=3.0A
ꢁ High Precision Output
ꢁ Low Dropout Voltage
ꢁ ON/OFF Control
Vo ±1.0%
0.12V typ. (Io=1.5A, 3.0V Version)
ꢁ Internal Short Circuit Current Limit
ꢁ Internal Thermal Overload Protection
ꢁ Package Outline
TO-252-5
ꢀ PIN CONFIGURATION
3
1. VIN
2. CONTROL
3. Vo
4. N.C.
5. GND
1 2 3 4 5
NJM2817DL3
ꢀ EQUIVALENT CIRCUIT
VOUT
VIN
Current
Limit
CONTROL
Bandgap
Reference
Thermal
Protection
GND
Ver.2010-07-12
- 1 -
NJM2817
ꢀ OUTPUT VOLTAGE RANK LIST
Device Name
NJM2817DL3-18
NJM2817DL3-21
NJM2817DL3-03
NJM2817DL3-05
VOUT
1.8V
2.1V
3.0V
5.0V
Output voltage options available : 1.8 ~ 5.0V (0.1V step)
ꢀABSOLUTE MAXIMUM RATINGS (Ta=25°C)
PARAMETER
Input Voltage
SYMBOL
VIN
RATINGS
UNIT
V
+8
Control Voltage
VCONT
+8
V
1190(*1)
3125(*2)
-40 ∼ +85
-40 ∼ +150
Power Dissipation
PD
mW
Operating Temperature
Storage Temperature
Topr
Tstg
°C
°C
(*1) : Mounted on glass epoxy board. (76.2×114.3×1.6mm:EIA/JDEC standard size, 2Layers, copper area 100mm2)
(*2) : Mounted on glass epoxy board. (76.2×114.3×1.6mm:EIA/JDEC standard size, 4Layers,
(4Layers inner foil : 74.2 x 74.2mm Applying thermal via holes to a board based on JEDEC standard JESD51-5)
ꢀ OPERATING VOLTAGE
VIN=VO + ∆VI-O ~ +7V (In case of 2.1V ≤ VO ≤ 5.0V version)
VIN=2.3V ~ +7V (In case of VO < 2.1V version)
ꢀ ELECTRICAL CHARACTERISTICS
(VIN=Vo+1V, CIN=4.7µF(CIN=10µF:Vo<2.1V), Co=4.7µF(Co=33µF : Vo<2.1V), Ta=25°C)
PARAMETER
Output Voltage
SYMBOL
TEST CONDITION
Io=100mA
MIN.
-1.0%
-
TYP.
-
MAX.
+1.0%
1200
UNIT
V
Vo
IQ
Quiescent Current
Quiescent Current
at Control OFF
Io=0mA, except ICONT
700
µA
IQ (OFF)
VCONT=0V
-
-
1
µA
Output Current
Line Regulation
Load Regulation
Io
Vo x 0.9V
VIN=Vo+1V ∼ 7V, Io=100mA
Io=0 ∼ 3.0A
3
-
-
-
-
-
-
5
-
A
%/V
%/A
0.01
0.05
0.16
0.13
0.12
0.11
0.05
0.3
0.27
0.22
0.20
0.18
∆Vo/∆VIN
∆Vo/∆Io
2.1V ≤ Vo < 2.5V
2.5V ≤ Vo < 2.8V
2.8V ≤ Vo < 3.4V
Dropout Voltage(*2)
Io=1.0A
V
∆VI -O
3.4V ≤ Vo ≤ 5.0V
ein=200mVrms,f=1kHz,
Io=100mA,Vo=3V Version
Ripple Rejection
RR
∆Vo/∆Ta
VNO
-
-
-
65
± 50
42
-
-
-
dB
Average Temperature
Coefficient of Output Voltage
Ta=0 ∼ 85°C, Io=100mA
ppm/°C
µVrms
f=10Hz ∼ 80kHz, Io=100mA,
Vo=3V Version
Output Noise Voltage
Control Current
Control Voltage for ON-state
Control Voltage for OFF-state
ICONT
VCONT(ON)
VCONT(OFF)
VCONT=1.6V
-
1.6
-
2.3
2.4
3
-
-
-
-
12
-
0.6
-
µA
V
V
V
V
Io≤1.5A, Vo×0.96
Vo<2.1V
Minimum Input Voltage
VIN (MIN.)
1.5A<Io≤2.0A, Vo×0.96
-
(*2): 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.
Ver.2010-07-12
- 2 -
NJM2817
ꢀ POWER DISSIPATION vs. AMBIENT TEMPERATURE
NJM2817DL3 PowerDissipation
(Topr=-40~+85°C,Tj=150°C)
3500
3000
2500
2000
1500
1000
500
on 4 layers board
on 2 layers board
0
-50
-25
0
25
50
75
100
Temperature : Ta(°C)
ꢀ TEST CIRCUIT
IIN
VIN
VOUT
A
*3
4.7µF
(Ceramic)
*3
4.7µF
IOUT
VOU
V
VIN
NJM2817
ICONT
CONTROL
A
GND
V VCONT
*3 : Vo < 2.1V version : CIN=10µF
Vo < 2.1V version : Co=33µF(Ceramic)
Ver.2010-07-12
- 3 -
NJM2817
ꢀ TYPICALAPPLICATION
1 In the case where ON/OFF Control is not required:
VIN
VIN
VOUT
VOUT
*4
*4
4.7µF
4.7µF
NJM2817
R
CONTROL
GND
*4 : Vo < 2.1V version : CIN=10µF
Vo < 2.1V version : Co=33µF
Connect control terminal to VIN terminal
2 In use of ON/OFF CONTROL:
VIN
VIN
VOUT
VOUT
*4
*4
4.7µF
4.7µF
NJM2817
R
CONTROL
GND
*4 : Vo < 2.1V version : CIN=10µF
Vo < 2.1V version : Co=33µF
State of control terminal:
•“H”→ output is enabled.
•“L” or “open” → output is disabled.
ꢂIn the case of using a resistance "R" between VIN and control.
The current flow into the control terminal while the IC is ON state (ICONT) can be reduced when a pull up resistance
"R" is inserted between VIN and the control terminal.
The minimum control voltage for ON state (VCONT (ON)) is increased due to the voltage drop caused by ICONT and the
resistance "R". The ICONT 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 VCONT (ON) over the required temperature range.
Ver.2010-07-12
- 4 -
NJM2817
ꢂInput Capacitance CIN
Input Capacitance CIN is required to prevent oscillation and reduce power supply ripple for applications with high
power supply impedance or a long power supply line.
Use the CIN value of 4.7µF greater to avoid the problem.
CIN should connect between GND and VIN as short as possible.
ꢂOutput Capacitance CO
Output capacitor (Co) is required for a phase compensation of the internal error amplifier. The capacitance and the
equivalent series resistance (ESR) influence stability of the regulator.
If use a smaller Co, it may cause excess output noise or oscillation of the regulator due to lack of the phase
compensation. Therefore, use Co with the recommended capacitance or greater value and connect between Vo
terminal and GND terminal with minimal wiring.
The recommended capacitance depends on the output voltage. Low voltage regulator requires greater value of
the Co. Thus, check the recommended capacitance for each output voltage.
Use of a greater Co reduces output noise and ripple output, and also improves transient response of the output
voltage against rapid load change.
This product is designed to work with any capacitor including a low ESR capacitor for the Co; however, refer
"Equivalent Series Resistance vs. Output Current" and choose suitable capacitor.
ꢂ When distance from an IC to load is long, an IC may cause malfunction by wiring capacity and an L ingredient
Please use it after having evaluated it enough.
Ver.2010-07-12
- 5 -
NJM2817
ꢀ TYPICAL CHARACTERISTICS
NJM2817_5.0V
Output Voltage vs.Output Current
NJM2817_5.0V
Output Voltage vs.Input Voltage
5.2
5.1
5
6
5
4
3
2
1
0
@:Ta=25°C
Co=4.7µF(Ceramic)
@:Ta=25°C
VIN=6.0V
Co=4.7µF(Ceramic)
Io=0mA
Io=500mA
4.9
4.8
4.7
Io=3000A
Io=2000A
4.7
4.8
4.9
5
5.1
5.2
5.3
5.4
0
2
4
6
8
Input Voltage : VIN (V)
Output Current : Io (A)
NJM2817_5.0V
NJM2817_5.0V
Dropout Voltage vs.Output Current
Ground Pin Current vs.OutputCurrent
5
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
@:Ta=25°C
VIN=6.0V
Co=4.7µF(Ceramic)
@:Ta=25°C
Vin=6.0V
Co=4.7µF(Ceramic)
4
3
2
1
0
0
500
1000
1500
2000
2500
3000
0
500
1000
1500
2000
2500
3000
Output Currnet : Io (mA)
Output Current : Io (mA)
NJM2817_5.0V
Output Voltage vs.Control Voltage
NJM2817_5.0V
Control Current vs.Control Voltage
6
5
4
3
2
1
0
50
40
30
20
10
0
@:Ta=25°C
VIN=6.0V
Co=4.7µF(Ceramic)
Io=500mA
@:Ta=25°C
VIN=6.0V
Co=4.7µF(Ceramic)
Io=500mA
Rc=50kΩ
Rc=0Ω
Rc=100kΩ
Rc=100kΩ
Rc=50kΩ
Rc=0Ω
0
0.5
1
1.5
2
2.5
0
1
2
3
4
5
6
Control Voltage (V)
Control Voltage (V)
Ver.2010-07-12
- 6 -
NJM2817
NJM2817_5.0V
NJM2817_5.0V
Peak Output Current vs.Input Voltage
Load Regulation vs.Output Current
0
-10
-20
-30
-40
-50
8
7
6
5
4
3
2
1
0
@:Ta=25°C
Vin=6.0V
Co=4.7µF(Ceramic)
@:Ta=25°C
Vo=4.5V
Co=4.7µF(Ceramic)
0
1000
2000
3000
4000
6
7
8
9
10
11
12
Output Current : Io (mA)
Input Voltage : VIN (V)
NJM2817_5.0V
NJM2817_5.0V
Quiesient Current vs.Input Voltage
Output Noize Voltage vs.Output Current
2000
1500
1000
500
0
100
80
60
40
20
0
@:Ta=25°C
Output is open
Co=4.7µF(Ceramic)
Inculding Icont
LPH:80kHz
@Ta=25°C
VIN=6.0V
Cin=4.7µF(Ceramic)
Co=4.7µF(Ceramic)
0.001
0.1
10
1000
0
2
4
6
8
10
12
Output Current :Io(mA)
Input Voltage:VIN (V)
NJM2817_5.0V
Ripple Rejection Ratio vs.Frequency
NJM2817_5.0V
Ripple Rejection Ratio vs.Frequency
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
Io=0A
Io=0A
Io=500mA
Io=500mA
@:Ta=25°C
VIN=6.0V
ein=200mVrms
Cin=4.7µF(Ceramic)
Co=4.7µF(Ceramic)
@:Ta=25°C
VIN=6.0V
ein=200mVrms
Cin=4.7µF(Cera)
Co=4.7µF(Cera)
Io=2000mA
Io=2000mA
0.01
0.1
1
10
100
0.01
0.1
1
10
100
Frequency :f(kHz)
Frequency :f(kHz)
Ver.2010-07-12
- 7 -
NJM2817
NJM2817_5.0V
NJM2817_5.0V
Equivalent Serise Resistance vs. Output Current
Dropout Voltage vs.Temperature
0.50
0.40
0.30
0.20
0.10
0.00
@:Io=100mA
Co=4.7µF(Ceramic)
Co=4.7µF(Ceramic)
100
10
1
1500mA
2000mA
2500mA
3000mA
STABLE REGION
@:Ta=25°C
VIN=6.0V
Cin=4.7µF(Ceramic)
Co=4.7µF(Ceramic)
0.1
0.01
0.001
0.01
0.1
1
10
100
1000
Output Current:Io(mA)
-50
0
50
100
150
Temperature:Ta (°C)
NJM2817_5.0V
NJM2817_5.0V
Control Voltage vs.Temperature
Output Voltage vs.Temperature
2.0
1.5
1.0
0.5
0.0
5.20
@:Vin=6.0V
Io=100mA
Co=4.7µF(Ceramic)
Co=4.7µF(Ceramic)
5.10
5.00
4.90
4.80
@:Vin=6.0V
Io=100mA
Cin=4.7µF(Ceramic)
Co=4.7µF(Ceramic)
-50
0
50
100
150
-50
0
50
100
150
Temperature:Ta (°C)
Temperature:Ta (°C)
NJM2817_5.0V
NJM2817_5.0V
Quiescent Current vs.Temperature
Short Circuit Current vs.Temperature
1000
2.0
1.5
1.0
0.5
0.0
@:Vin=6.0V
Output is short to ground
Cin=4.7µF(Ceramic)
Co=4.7µF(Ceramic)
800
600
400
200
0
@:Vin=6.0V
Output is open
Cin=4.7µF(Ceramic)
Co=4.7µF(Ceramic)
including Icont
-50
0
50
Temperature:Ta (°C)
100
150
-50
0
50
Temperature:Ta (°C)
100
150
Ver.2010-07-12
- 8 -
NJM2817
NJM2817_5.0V
Load Regulation vs.Temperature
NJM2817_5.0V
Line Regulation vs.Temperature
0.30
0.25
0.20
0.15
0.10
0.05
0.00
0.10
0.05
0.00
-0.05
-0.10
@:Vin=6.0V
Cin=4.7µF(Ceramic)
Co=4.7µF(Ceramic)
@:Vin=6-7V
Io=100mA
Co=4.7µF(Ceramic)
Co=4.7µF(Ceramic)
Io=0-3A
Io=0-2A
-50
0
50
100
150
-50
0
50
Temperature:Ta (°C)
100
150
Temperature:Ta (°C)
NJM2817_5.0V
Output Voltage vs.Temperature
6.0
5.0
4.0
3.0
2.0
1.0
0.0
@:Vin=6.0V
Io=100mA
Cin=4.7µF(Ceramic)
Co=4.7µF(Ceramic)
-50
0
50
100
150
200
Temperature:Ta (°C)
Ver.2010-07-12
- 9 -
NJM2817
NJM2817_5.0V
ON/OFF Transient Response
NJM2817_5.0V
ON/OFF Transient Respons without Load
10
5
14
12
7
10
6
5
5
Control Voltage
10
8
0
0
Control Voltage
Output Voltage
@:Ta=25°C
VIN=6.0V
Io=100mA
-5
4
-5
Co=4.7µF(Cera)
6
4
-10
-15
-20
3
-10
-15
-20
2
Output Voltage
2
1
@:Ta=25°C
VIN=6.0V
Io=0mA
0
-25
-30
0
-25
-30
Co=4.7µF(Cera)
-2
-1
0
4
8
12
16
20
0
2
4
6
8
10
Time:t(s)
Time:t(ms)
NJM2817_5.0V
Input Transient Response
NJM2817_5.0V
Load Transient Response
8
5.3
5.1
5.08
5.06
5.04
5.02
5
1.5
1
5.25
7
6
5
5.2
0.5
0
@:Ta=25°C
VIN=6.0V
Io=100mA
Cin=4.7uF(Cera)
Co=4.7µF(Cera)
Output Current
Output Voltage
Input Voltage
5.15
5.1
5.05
5
4
3
2
-0.5
-1
@:Ta=25°C
VIN=6.0V
Io=500-1000mA
Co=4.7µF(Cera)
4.98
4.96
4.94
-1.5
-2
Output Voltage
4.95
4.9
1
0
-2.5
0
40
80
120
160
200
0
40
80
120
160
200
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.
Ver.2010-07-12
- 10 -
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