NJRC NJM2819ADL3-33 Low dropout voltage regulator Datasheet

NJM2819A
LOW DROPOUT VOLTAGE REGULATOR
GENERAL DESCRIPTION
The NJM2819A is a low dropout voltage regulator with ON/OFF
control.
Advanced Bipolar technology achieves low noise, high ripple
rejection and low quiescent current.
It delivers up to 7V/2A output power with the maximum input
voltage of 10V.
The NJM2819A is suitable for audio/video and digital applications.
PACKAGE OUTLINE
NJM2819ADL3
FEATURES
High Ripple Rejection
65dB typ. (f=1kHz,3V Version)
Output Noise Voltage
Vno=42µVrms typ. (Vo=3V Version)
Output capacitor with 4.7µF ceramic capacitor (Vo≥2.1V)
Output Current
Io(max.)=2.0A
High Precision Output
Vo ±1.0%
Low Dropout Voltage
0.1V typ. (Io=1.0A, 3.0V Version)
ON/OFF Control
Internal Short Circuit Current Limit
Internal Thermal Overload Protection
Package Outline
TO-252-5
PIN CONFIGURATION
3
123 45
1. VIN
2. CONTROL
3. Vo
4. N.C.
5. GND
NJM2819ADL3
EQUIVALENT CIRCUIT
VOUT
VIN
Current
Limit
CONTROL
Bandgap
Reference
Thermal
Protection
GND
Ver.2010-02-08
-1-
NJM2819A
OUTPUT VOLTAGE RANK LIST
Device Name
VOUT
NJM2819ADL3-18
1.8V
NJM2819ADL3-21
2.1V
NJM2819ADL3-03
3.0V
NJM2819ADL3-33
3.3V
NJM2819ADL3-05
5.0V
NJM2819ADL3-52
5.2V
NJM2819ADL3-07
7.0V
Output voltage options available : 1.8 ~ 7.0V
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Input Voltage
Control Voltage
Power Dissipation
Operating Temperature
Storage Temperature
VIN
VCONT
PD
Topr
Tstg
RATINGS
VO > 6.0V: +10
5.0V < VO ≤ 6.0V: +9V
VO ≤ 5.0V: +8
VO > 6.0V: +10
5.0V < VO ≤ 6.0V: +9V
VO ≤ 5.0V: +8
1190(*1)
3125(*2)
-40 ∼ +85
-40 ∼ +150
(Ta=25°C)
UNIT
V
V
mW
°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, copper area 100mm2)
(4Layers inner foil : 74.2 x 74.2mm Applying a thermal beer hall to a board based on JEDEC standard JESD51-5)
OPERATING VOLTAGE
VIN=VO + ∆VI-O ~ 9V (In case of VO > 6.0V version)
VIN=VO + ∆VI-O ~ 8V (In case of 5.0V < VO ≤ 6.0V version)
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)
-2-
Ver.2010-02-08
NJM2819A
ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=4.7µF, Co=4.7µF(Co=10µF : 1.8V≤Vo<2.1V), Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
Output Voltage
Vo
Io=100mA
-1.0%
+1.0%
Quiescent Current
IQ
Io=0mA, exclude ICONT
500
800
Quiescent Current
IQ (OFF)
VCONT=0V
1
at Control OFF
Output Current
Io
Vo - 0.3V
2
3
VO>5.0V : VIN=Vo+1V ∼ 9V,
5.0V < VO ≤ 6.0V : VIN=Vo+1V ∼ 8V,
0.1
Line Regulation
∆Vo/∆VIN
VO≤5.0V : VIN=Vo+1V ∼ 7V,
Io=100mA
Load Regulation
0.05
0.4
∆Vo/∆Io
Io=0 ∼ 2.0A
0.14
0.25
2.1V ≤ Vo < 2.5V
0.11
0.20
2.5V ≤ Vo < 2.8V
Dropout Voltage(*2)
Io=1.0A
∆VI -O
0.10
0.18
2.8V ≤ Vo < 3.4V
0.09
0.16
3.4V ≤ Vo ≤ 7.0V
ein=200mVrms,f=1kHz, Io=100mA,
Ripple Rejection
RR
65
Vo=3V Version
Average Temperature
∆Vo/∆Ta
Ta=0 ∼ 85°C, Io=100mA
± 50
Coefficient of Output Voltage
f=10Hz ∼ 80kHz, Io=100mA,
Output Noise Voltage
VNO
42
Vo=3V Version
Control Current
ICONT
VCONT=1.6V
3
12
Control Voltage for ON-state
VCONT(ON)
1.6
Control Voltage for OFF-state
VCONT(OFF)
0.6
Io≤1.5A, Vo×0.96
2.3
Minimum Input Voltage
VIN (MIN.)
Vo<2.1V
1.5A<Io≤2.0A, Vo×0.96
2.4
(*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.2010-02-08
-3-
UNIT
V
µA
µA
A
%/V
%/A
V
dB
ppm/°C
µVrms
µA
V
V
V
V
NJM2819A
POWER DISSIPATION vs. AMBIENT TEMPERATURE
NJM2819ADL3 PowerDissipation
(Topr=-40~+85°C,Tj=150°C)
Power Dissipation PD(mW)
3500
3000
on 4 layers board
2500
2000
1500
on 2 layers board
1000
500
0
-50
-25
0
25
50
75
100
Temperature : Ta(°C)
TEST CIRCUIT
A
IIN
VIN
VOUT
*3
VIN
4.7µF
A
V VCONT
ICONT
NJM2819A
4.7µF
IOUT V VOU
(Ceramic)
CONTROL
GND
*3 : 1.8 ≤Vo<2.6V version : Co=10µF (Ceramic)
-4-
Ver.2010-02-08
NJM2819A
TYPICAL APPLICATION
1 In the case where ON/OFF Control is not required:
VIN
VIN
VOUT
VOUT
*4
4.7µF
NJM2819A
4.7µF
R
CONTROL
GND
*4 : 1.8 ≤Vo<2.6V version : Co=10µF
Connect control terminal to VIN terminal
2 In use of ON/OFF CONTROL:
VIN
VIN
VOUT
VOUT
*4
NJM2819A
4.7µF
4.7µF
R
CONTROL
GND
*4 : 1.8 ≤Vo<2.6V version : Co=10µF
State of control terminal:
•“H”→ output is enabled.
•“L” or “open” → output is disabled.
In 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.2010-02-08
-5-
NJM2819A
Input 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.
Output 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.
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.
-6-
Ver.2010-02-08
NJM2819A
TYPICAL CHARACTERISTICS
NJM2819A_3.0V
Output Volatage vs.Output Current
NJM2819A_3.0V
Output Voltage vs.Input Voltage
4
3.4
@:Ta=25°C
Co=4.7uF(Ceramic)
3.5
3.3
Output Voltage : Vo (V)
Output Voltage : Vo (V)
3
3.2
3.1
Io=0A
3
Io=500mA
2.9
2.8
2.5
2
1.5
1
@:Ta=25°C
VIN=4.0V
Co=4.7uF(Ceramic)
0.5
Io=2000mA
2.7
0
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
0
1
2
Input Voltage : VIN (V)
4
5
6
2500
3000
NJM2819A_3.0V
Dropout Voltage vs.Output Current
NJM2819A_3.0V
Ground Pin Current vs.Output Current
5
0.40
@:Ta=25°C
VIN=4.0V
Co=4.7uF(Ceramic)
0.35
4
D ropout Voltage : dVI_O (V)
Ground Pin Current : I GND (mA
3
Output Current : Io (A)
3
2
1
@:Ta=25°C
Vin=2.5V
Co=2.2uF(Ceramic)
0.30
0.25
0.20
0.15
0.10
0.05
0
0
500
1000
1500
2000
2500
3000
0.00
0
500
1000
Output Currnet : Io (mA)
1500
2000
Output Current : Io (mA)
NJM2819A_3.0V
Control Current vs.Control Voltage
NJM2819A_3.0V
Output Voltage vs. Control Voltage
4
50
@:Ta=25°C
VIN=4.0V
Co=4.7uF(Ceramic)
Io=500mA
40
@:Ta=25°C
VIN=4.0V
Co=4.7uF(Ceramic)
Io=500mA
3.5
Output Voltage (V)
Control Current (uA)
3
30
20
Rc=100kΩ
2
Rc=100kΩ
1.5
Rc=50kΩ
Rc=50kΩ
1
Rc=0Ω
10
2.5
Rc=0Ω
0.5
0
0
0
0.5
1
1.5
2
2.5
Control Voltage (V)
Ver.2010-02-08
3
3.5
4
0
0.5
1
1.5
2
2.5
Control Voltage (V)
-7-
NJM2819A
NJM2819A_3.0V
Load Regulation vs.Output Current
NJM2819A_3.0V
Peak Output Current vs.Input Voltage
6
Peak Output Current : Io MAX (mA)
Load Regulation : dVo/dIo (mV)
0
-10
-20
-30
@:Ta=25°C
Vin=2.5V
Co=4.7uF(Ceramic)
-40
-50
5
4
3
2
1
@:Ta=25°C
Co=4.7uF(Ceramic)
0
0
1000
2000
3000
4000
4
6
8
Output Current : Io (mA)
100
2000
Quiescent Current:IQ (µA)
O utput Nois e Voltage :Vn (µVrms )
@:Ta=25°C
Output is open
Co=4.7uF(Ceramic)
Inculding Icont
1000
500
80
2
4
6
8
10
@Ta=25°C
VIN=4.0V
Cin=4.7µF(Ceramic)
Co=4.7µF(Ceramic)
60
40
LPH:80kHz
20
0
0.001
0
0
12
0.01
0.1
Io=0A
Io=100mA
50
20
10
0
0.01
10000
Io=2000mA
f=1kHz
70
60
50
40
30
20
@:Ta=25°C
VIN=4.0V
ein=200mVrms
Cin=4.7µF(Ceramic)
Co=4.7µF(Ceramic)
f=10kHz
10
0
0.1
1
Frequency :f (kHz)
-8-
Ripple Rejection :RR(dB
Ripple Rejection :RR(dB)
80
60
30
1000
90
80
@:Ta=25°C
VIN=4.0V
ein=200mVrms
Cin=4.7µF
Co=4.7µF
100
100
100
40
10
NJM2819A_3.0V
Ripple Rejection vs.Output Current
NJM2819A_3.0V
Ripple Rejection Ratio vs.Frequency
70
1
Output Current :Io (mA)
Input Voltage:VIN (V)
90
12
NJM2819A_3.0V
Output Noize Voltage vs.Output Current
NJM2819A_3.0V
Quiescent Current vs.Input Voltage
1500
10
Input Voltage : VIN (V)
10
100
0.001
0.1
10
1000
Output Current :Io(mA)
Ver.2010-02-08
NJM2819A
NJM2819A_3.0V
Equivalent Serise Resistance vs. Output Current
NJM2819A_3.0V
Dropout Voltage vs.Temperature
@Ta=25°C
VIN=4.0V
Co=4.7uF(Ceramic)
0.25
@:Io=1000mA
Co=4.7uF(Ceramic)
Dropout Voltage : dVi-o(V)
EquiValent Serise Resistance:ESR [Ω]
100
10
1
STABLE REGION
0.20
0.15
0.10
0.05
0.1
0.00
-50
0.01
0.001
0.01
0.1
1
10
100
1000
0
50
100
150
Temperature : (°C)
10000
Output Current : Io(mA)
NJM2819A_3.0V
Control Voltage vs.Temperature
NJM2819A_3.0V
Output Voltage vs.Temperature
3.05
1.60
1.40
Control Voltage :Vcont_OFF
Output Voltage : Vo(V)
3.04
3.03
3.02
3.01
3.00
2.99
2.98
@:VIN=4.0V
Io=100mA
Co=4.7uF(Ceramic)
2.97
2.96
1.20
1.00
0.80
0.60
@:VIN=4.0V
Output is Open
Co=4.7uF(Ceramic)
0.40
0.20
2.95
0.00
-50
0
50
100
150
-50
0
50
100
150
Temperature : (°C)
Temperature : (°C)
NJM2819A_3.0V
Control Current vs.Temperature
NJM2819A_3.0V
Quiescent Current vs.Temperature
900
12.00
Quiescent Current : I Q(uA)
Control current : Icnt(uA)
800
10.00
8.00
6.00
4.00
@:VIN=4.0V
Vcont=1.6V
Co=4.7uF(Ceramic)
2.00
700
600
500
400
300
@:VIN=4.0V
Output is Open
Co=4.7uF(Ceramic)
200
100
0.00
0
-50
0
50
Temperature : (°C)
Ver.2010-02-08
100
150
-50
0
50
100
150
Temperature : (°C)
-9-
NJM2819A
NJM2819A_3.0V
Short Circuit Current vs.Temperature
1000
Short Circuit Current : Isc(mA)
800
Line Regulation : dVo/dVin(mV)
@:VIN=4.0V
Output is short to Ground
Co=4.7uF(Ceramic)
900
NJM2819A_3.0V
Line Regulation vs.Temperature
0.10
700
600
500
400
300
200
100
0.08
0.06
0.04
0.02
0.00
-0.02
@:VIN=4.0-9.0V
Io=100mA
Co=4.7uF(Ceramic)
-0.04
-0.06
-0.08
0
-50
0
50
100
-0.10
150
-50
0
Temperature : (°C)
Output Peak Current : Io_peak(mA)
Load Regulation : dVo/dIo(mV)
4500
@:VIN=4.0
Io=0-2000mA
Co=4.7uF(Ceramic)
-0.12
0
50
150
NJM2819A_3.0V
Output Peak Current vs.Temperature
0.09
-50
100
Temperature : (°C)
NJM2819A_3.0V
Load Regulation vs.Temperature
0.30
50
100
150
Temperature : (°C)
4000
3500
3000
2500
2000
1500
@:VIN=4.0V
Co=4.7uF(Ceramic)
1000
500
0
-50
0
50
100
150
Temperature : (°C)
NJM2819A_3.0V
Output Voltage vs.Temperature
4.00
Output Voltage : Vo(V)
3.50
3.00
2.50
2.00
1.50
@:VIN=4.0V
Io=100mA
Co=4.7uF(Ceramic)
1.00
0.50
0.00
-50
0
50
100
150
200
Temperature : (°C)
- 10 -
Ver.2010-02-08
NJM2819A
5
0
Control Voltage
4
-5
@:Ta=25°C
VIN=4.0V
Io=0mA
Co=4.7uF(Ceramic)
2
-10
-15
1
-20
Output Voltage
0
-1
4
0
8
12
Time : t(s)
16
3.10
Output Voltage : Vo(V)
3.08
3.06
40
80
120
Time : t(ms)
160
200
Output Voltage
2
-15
-30
0
4
8
12
20
16
NJM2819A_3.0V
Input Transient Response
1500
1.80
7
1000
1.75
6
-1000
0
-10
Time : t(ms)
3.00
2.94
3
-5
-1
-500
2.96
4
-30
3.02
@:Ta=25°C
VIN=4.0V
Io=500-1000mA
Co=4.7uF(Ceramic)
0
@:Ta=25°C
VIN=4.0V
Io=100mA
Co=4.7uF(Ceramic)
-25
0
Output Voltage
Control Voltage
5
0
3.04
2.98
5
-25
500
Output Current
6
-20
20
NJM2819A_3.0V
Load Transient Response
10
1
-1500
-2000
-2500
Output Voltage : Vo(V)
3
7
1.70
5
Input Voltage
1.65
1.60
1.55
Output Voltage
4
@:Ta=25°C
VIN=4.0V
Io=100mA
Cin=4.7uF(Ceramic)
Co=4.7uF(Ceramic)
3
2
1.50
1
1.45
0
1.40
-1
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.2010-02-08
- 11 -
control Voltage : Vcont(V)
5
Output Voltage : Vo(V)
6
control Voltage : Vcont(V)
10
Output Current : Io(mA)
Output Voltage : Vo(V)
7
control Voltage : Vcont(V)
NJM2819A_3.0V
ON/OFF Transient Response
NJM2819A_3.0V
ON/OFF Transient Response without Load
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