NJRC NJM2883E Low dropout voltage regulator Datasheet

NJM2883
LOW DROPOUT VOLTAGE REGULATOR
GENERAL DESCRIPTION
The NJM2883 is a low dropout voltage regulator in EMP8
package
Advanced Bipolar technology achieves low noise, high ripple
rejection and low quiescent current.
It is suitable for portable applications.
PACKAGE OUTLINE
NJM2883E
FEATURES
High Ripple Rejection
75dB typ. (f=1kHz,Vo=3V Version)
Output Noise Voltage
Vno=30µVrms typ.(Cp=0.01µF)
Output capacitor with 1.0µF ceramic capacitor (Vo≥2.7V)
Output Current
Io(max.)=300mA
High Precision Output
Vo±1%
Low Dropout Voltage
0.10V typ. (Io=100mA)
ON/OFF Control
(Active High)
Operating Voltage Range +2.3V∼+14V (Vo≤2.0V version)
Internal Short Circuit Current Limit
Internal Thermal Overload Protection
Bipolar Technology
Package Outline
EMP8 (5.0×6.0×1.5mm)
PIN CONFIGURATION
1
8
2
7
3
6
4
5
NJM2883E
PIN FUNCTION
1.VOUT
2.GND
3.GND
4.NOISE BYPASS
5.CONTROL (Active High)
6.GND
7.GND
8.VIN
EQUIVALENT CIRCUIT
VIN
VOUT
Control
Thermal
Protection
Bandgap
Reference
Noise
Bypass
GND
Ver.2004-12-22
-1-
NJM2883
OUTPUT VOLTAGE RANK LIST (* : Under development)
Device Name
VOUT
Device Name
*NJM2883E15
1.5V
*NJM2883E31
*NJM2883E17
1.7V
NJM2883E33
NJM2883E18
1.8V
NJM2883E345
*NJM2883E21
2.1V
*NJM2883E35
NJM2883E25
2.5V
*NJM2883E38
NJM2883E28
2.8V
*NJM2883E04
*NJM2883E285
2.85V
*NJM2883E43
NJM2883E29
2.9V
*NJM2883E47
NJM2883E03
3.0V
NJM2883E05
VOUT
3.1V
3.3V
3.45V
3.5V
3.8V
4.0V
4.3V
4.7V
5.0V
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Input Voltage
VIN
Control Voltage
VCONT
Power Dissipation
PD
Operating Temperature
Topr
Storage Temperature
Tstg
(Ta=25°C)
RATINGS
UNIT
+14
V
+14(*1)
V
650(*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
VIN=+2.3V ∼ +14.0V (In case of Vo<2.1V)
ELECTRICAL CHARACTERISTICS
(Vo>2.0V version : VIN=Vo+1V, CIN=0.1µF, Co=1.0µF: Vo≥2.7V (Co=2.2µF: Vo≤2.6V), Cp=0.01µF, Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP. MAX.
Output Voltage
Vo
Io=30mA
-1.0%
+1.0%
−
Quiescent Current
IQ
Io=0mA, expect Icont
120
180
−
Quiescent Current
VCONT=0V
100
IQ(OFF)
−
−
at Control OFF
Output Current
Io
Vo - 0.3V
300
400
Line Regulation
0.10
∆Vo/∆VIN VIN=Vo+1V∼Vo+6V, Io=30mA
−
−
Load Regulation
0.03
∆Vo/∆Io Io=0∼300mA
−
−
Io=100mA
0.10
0.18
Dropout Voltage
∆VI−O
−
ein=200mVrms,f=1kHz, Io=10mA,
Ripple Rejection
RR
75
−
−
Vo=3V Version
Average Temperature
∆Vo/∆Ta Ta=0∼+85°C, Io=10mA
±50
−
−
Coefficient of Output Voltage
f=10Hz∼80kHz, Io=10mA,
Output Noise Voltage
VNO
30
−
−
Vo=3V Version
Control Voltage for ON-state
VCONT(ON)
1.6
−
−
Control Voltage for OFF-state
VCONT(OFF)
0.6
−
−
-2-
UNIT
V
µA
nA
mA
%/V
%/mA
V
dB
ppm/°C
µVrms
V
V
Ver.2004-12-22
NJM2883
(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.
Output Voltage
Vo
Io=30mA
-1.0%
+1.0%
−
Quiescent Current
IQ
Io=0mA, expect Icont
120
180
−
Quiescent Current
VCONT=0V
100
IQ(OFF)
−
−
at Control OFF
Output Current
Io
Vo - 0.3V
300
400
Line Regulation
0.10
∆Vo/∆VIN VIN=Vo+1V∼Vo+6V, Io=30mA
−
−
Load Regulation
0.03
∆Vo/∆Io Io=0∼300mA
−
−
ein=200mVrms, f=1kHz, Io=10mA,
Ripple Rejection
RR
80
−
−
Vo=1.8V Version
Average Temperature
∆Vo/∆Ta Ta=0∼85°C, Io=10mA
±50
−
−
Coefficient of Output Voltage
f=10Hz∼80kHz, Io=10mA,
Output Noise Voltage
VNO
20
−
−
Vo=1.8V Version
Control Voltage for ON-state
VCONT(ON)
1.6
−
−
Control Voltage for OFF-state
VCONT(OFF)
0.6
−
−
UNIT
V
µA
nA
mA
%/V
%/mA
dB
ppm/°C
µVrms
V
V
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
VIN
0.1µF
A
V
*3
Ver.2004-12-22
VCONT
ICONT
VOUT
NJM2883
CONTROL
GND
1.0µF *3
(ceramic)
IOUT
V VOUT
NOISE
BYPASS
Cp=0.01µF
1.9V ≤ Vo ≤ 2.6V version: Co=2.2µF(ceramic)
Vo ≤ 1.8V version: Co=4.7µF(ceramic)
-3-
NJM2883
TYPICAL APPLICATION
1 In case that ON/OFF Control is not required:
VIN
VIN
VOUT
VOUT
0.1µF
NJM2883
R
(0∼300kΩ)
1.0µF *4
NOISE
BYPASS
CONTROL
Cp=0.01µF
GND
*4
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
NJM2883
0.1µF
VOUT
1.0µF *4
R
CONTROL
NOISE
BYPASS
GND
*4
Cp=0.01µF
1.9V ≤ Vo ≤ 2.6V version : Co=2.2uF
Vo ≤ 1.8V version : Co=4.7uF
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.
-4-
Ver.2004-12-22
NJM2883
ELECTRICAL CARACTERISTICS
NJM2883_3.0V
Output Voltage v.s. Input Voltage
3.5
3.0
Output Voltage : Vo [V]
Output Voltage : Vo [V]
3.5
@Ta=25℃
Co=1.0uF(Ceramic)
Cp=0.01uF
3.3
Io=0mA
3.1
2.9
Io=300mA
2.7
Io=100mA
2.7
2.9
3.1
2.5
2.0
1.5
1.0
@Ta=25℃
Co=1.0uF(Ceramic)
Cp=0.01uF
0.5
2.5
2.5
NJM2883_3.0V
Output Voltage v.s. Output Current
3.3
0.0
3.5
0
Input Voltage : Vi [V]
NJM2883_3.0V
Ground Pin Current v.s. Output Current
@Ta=25℃
Co=1.0uF(Ceramic)
Cp=0.01uF
16
0.25
12
8
4
300
400
500
600
@Ta=25℃
Co=1.0uF(Ceramic)
Cp=0.01uF
0.20
0.15
0.10
0.05
0
0
125
250
375
0.00
500
0
Output Current : Io [mA]
NJM2883_3.0V
Control Current v.s. Control Voltage
20
16
@Ta=25℃
Co=1.0uF(Ceramic)
Cp=0.01uF
Io=30mA
Rc=100kΩ
Rc=50kΩ
Rc=0Ω
4
0
0.0
300
400
500
2.5
Rc=100kΩ
2.0
Rc=50kΩ
1.5
Rc=0Ω
1.0
@Ta=25℃
Co=1.0uF(Ceramic)
Cp=0.01uF
Io=30mA
0.5
0.0
0.5
1.0
1.5
2.0
Control Voltage : Vcont [V]
Ver.2004-12-22
200
3.0
12
8
100
Output Current : Io [A]
NJM2883_3.0V
Output Voltage v.s. Control Voltage
3.5
Output Voltage : Vo [V]
Control Current : Icont [uA]
200
Output Current : Io [mA]
NJM2883_3.0V
Dropout Voltage v.s. Output Current
0.30
Dropout Voltage : dVi-o [V]
Ground Pin Current : IGND [mA
20
100
2.5
3.0
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Control Voltage : Vcont [V]
-5-
NJM2883
ELECTRICAL CARACTERISTICS
100
Output Noise Voltage : Vn [uVrms]
@Ta=25℃
Co=1.0uF(Ceramic)
VDD=4.0V
Io=10mA
160
120
80
40
0
1E-06
0.00001 0.0001
0.001
0.01
70
60
50
Io=10mA
30
@Ta=25℃
Co=1.0uF(Ceramic)
Cp=0.01uF
VDD=4.0V
ein=200mV
Io=30mA
20
10
100
20
0.01
0.1
1
10
100
1000
Output Current : Io [mA]
NJM2883_3.0V
Ripple Rejection Ratio v.s. Frequency
1000
10000
80
70
60
50
40
30
f=1kHz
f=10kHz
20
10
0
10
40
90
80
40
60
100
Io=0mA
90
80
@Ta=25℃
Co=1.0uF(Ceramic)
Cp=0.01uF
VDD=4.0V
0
0.001
0.1
Noise Bypass Capacitor : Cp [uF]
NJM2883_3.0V
Ripple Rejection Ratio v.s. Frequency
100
Ripple Rejection Ratio : RR[dB
NJM2883_3.0V
Output Noise Voltage v.s. Output Current
Ripple Rejection Ratio : RR[dB
Output Noise Voltage : Vn [uVrms]
200
NJM2883_3.0V
Output Noise Voltage v.s. Noise Bypass Capacitor
100000
0
0.001
0.01
0.1
@Ta=25℃
Co=1.0uF(Ceramic)
Cp=0.01uF
VDD=3.8V
ein=200mV
1
10
100
1000
Output Current : Io[mA]
Frequency : f[Hz]
NJM2883_3.0V
Equivalent Series Resistance v.s. Output Current
Equivalent Series Resistance : ESR[Ω]
100
10
Stable Region
1
@Ta=25℃
Co=1.0uF(Ceramic)
Cp=0.01uF
VDD=4.0V
0.1
0.01
0.001
0.01
0.1
1
10
100
1000
Output Current : Io [mA]
-6-
Ver.2004-12-22
NJM2883
ELECTRICAL CARACTERISTICS
NJM2883_3.0V
Control Voltage_ON v.s. Temperature
NJM2883_3.0V
Dropout Voltage v.s. Temperature
2.0
Control Voltage_ON : VcontON [V]
0.30
Dropout Voltage : Vi-o [V]
0.25
0.20
0.15
0.10
Co=1.0uF(Ceramic)
Cp=0.01uF
Io=100mA
0.05
0.00
-50
3.5
0
50
100
VDD=4.0V
Co=1.0uF(Ceramic)
Cp=0.01uF
-50
0
50
100
Temerature : Ta [℃]
Temperature : Ta [℃]
NJM2883_.3.0V
Output Voltage v.s. Temerature
NJM2883_3.0V
Quiescent Current v.s. Temperature
300
Quiescent Current : Iq [uA]
Output Voltage : Vo [V]
0.5
0.0
2.5
2.0
1.5
VDD =4.0V
Co=1.0uF(Ceramic)
Cp=0.01uF
Io=30mA
0.5
1.0
150
3.0
1.0
1.5
150
250
200
150
100
VDD=4.0V
Co=1.0uF(Ceramic)
Cp=0.01uF
Include Icont
50
0
0.0
-50
0
50
100
Temerature : Ta [℃]
Ver.2004-12-22
150
200
-50
0
50
100
150
Temperature : Ta [℃]
-7-
NJM2883
[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.
-8-
Ver.2004-12-22
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