NJRC NJM286XF28 Ultra low noise low dropout voltage regulator Datasheet

NJM2863/64
Ultra Low Noise Low Dropout Voltage Regulator
! GENERAL DESCRIPTION
The NJM2863/64 is a 2ch low dropout voltage regulator designed
for VCO Applications.
Advanced Bipolar technology achieves low noise, high ripple
rejection and low quiescent current.
! PACKAGE OUTLINE
NJM2863F/64F
! FEATURES
" High Ripple Rejection
75dB typ. (f=1kHz)
" Output capacitor with 1.0µF ceramic capacitor
" Output Noise Voltage
Vno=19µVrms typ. (Cp=0.01µF, Co=1.0µF(Ceramic))
Vno=12µVrms typ. (Cp=0.1µF, Co=10µF(Tantalum))
" Output Current
Io(max.)=100mA
" High Precision Output
Vo±1.0%
" Low Dropout Voltage
0.10V typ. (Io=60mA)
" ON/OFF Control
(Active High)
" Internal Short Circuit Current Limit
" Internal Thermal Overload Protection
" Bipolar Technology
" Package Outline
MTP5
! PIN CONFIGURATION
5
4
1 2 3
PIN FUNCTION
1.CONTROL
2.GND
3.NOISE BYPASS
4.VOUT
5.VIN
1.VIN
2.GND
3.CONTROL
4.NOISE BYPASS
5.VOUT
NJM2863F
NJM2864F
! EQUIVALENT CIRCUIT
VOUT
VIN
Control
Thermal
Protection
Bandgap
Reference
Noise
Bypass
GND
! OUTPUT VOLTAGE RANK LIST
Device Name
VOUT
2.1V
NJM286×F21
2.5V
NJM286×F25
2.7V
NJM286×F27
2.8V
NJM286×F28
2.85V
NJM286×F285
Ver.2004-01-20
Device Name
NJM286×F29
NJM286×F03
NJM286×F33
NJM286×F05
VOUT
2.9V
3.0V
3.3V
5.0V
-1-
NJM2863/64
! 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(*note 1)
V
200
mW
−40 ∼ +85
°C
−40 ∼ +125
°C
(*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=1.0µF: Vo≥2.7V (Co=2.2µF: Vo≤2.6V), Cp=0.01µF, Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP.
Output Voltage
Vo
Io=30mA
-1.0%
−
Quiescent Current
IQ
Io=0mA, except Icont
120
−
Quiescent Current
VCONT=0V
IQ(OFF)
−
−
at Control OFF
Output Current
Io
Vo-0.3V
100
130
Line Regulation
∆Vo/∆VIN VIN=Vo+1V ∼ Vo+6V, Io=30mA
−
−
Load Regulation
∆Vo/∆Io Io=0 ∼ 100mA
−
−
Io=60mA
0.10
Dropout Voltage
∆VI−O
−
ein=200mVrms,f=1kHz, Io=10mA,
Ripple Rejection
RR
75
−
Vo=3V Version
Average Temperature
Coefficient of Output
∆Vo/∆Ta Ta=0∼85°C, Io=10mA
± 50
−
Voltage
f=10Hz∼80kHz, Io=10mA, Cp=0.01µF,
Output Noise Voltage1
VNO1
19
−
Co=1.0µF (Ceramic), Vo=3V Version
f=10Hz∼80kHz, Io=10mA, Cp=0.1µF,
Output Noise Voltage2
VNO2
12
Co=10µF (Tantalum), Vo=3V Version
Control Voltage for
1.6
VCONT(ON)
−
ON-state
Control Voltage for
VCONT(OFF)
−
−
OFF-state
(*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.
MAX.
+1.0%
180
UNIT
V
µA
100
nA
−
0.10
0.03
0.18
mA
%/V
%/mA
V
−
dB
−
ppm/°C
−
µVrms
µVrms
−
V
0.6
V
! TEST CIRCUIT
A
IIN
VIN
VIN
0.1µF
A
V VCONT
-2-
ICONT
VOUT
NJM2863/64
NOISE
CONTROL BYPASS
1.0µF
IOUT V VOUT
(ceramic)
OR
2.2µF: Vo≤2.6V
GND
Cp=0.01µF
Ver.2004-01-20
NJM2863/64
! TYPICAL APPLICATION
1 In the case where ON/OFF Control is not required:
VIN
VIN
0.1µF
VOUT
NJM2863/64
R
(0∼300kΩ)
VOUT
1.0µF (ceramic)
OR
2.2µF: Vo≤2.6V
NOISE
CONTROL BYPASS
Cp=0.01µF
GND
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
NJM2863/64
0.1µF
VOUT
1.0µF (ceramic)
OR
2.2µF: Vo≤2.6V
R
NOISE
CONTROL BYPASS
GND
Cp=0.01µF
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 0.01µF greater to avoid the problem.
Ver.2004-01-20
-3-
NJM2863/64
! ELECTRICAL CHARACTERISTICS
NJM2863/64_3.0V
Output Voltage v.s. Input Voltage
3.2
NJM2863/64_3.0V
Output Voltage vs. Output Current
4
o
@:Ta=25 C
Co=1.0uF(Ceramic)
Cp=0.01uF
3.5
3
Output Voltage :Vo [V]
Output Voltage :Vo [V]
3.1
Io=0A
3
2.9
Io=30mA
2.5
2
1.5
1
o
@:Ta=25 C
VIN=4V
Co=1.0uF(Ceramic)
Cp=0.01uF
2.8
Io=100mA
0.5
2.7
0
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
0
50
Input Voltage :Vin [V]
NJM2863/64_3.0V
Ground Pin Current vs. Output Voltage
20
150
200
NJM2863/64_3.0V
Dropout Voltage vs. Output Current
0.3
o
@:Ta=25 C
Co=1.0uF(Ceramic)
Cp=0.01uF
@:Ta=25o C
VIN=4V
Co=1.0uF(Ceramic)
Cp=0.01uF
0.25
15
Dropout Voltage :dVi-o [V]
Ground Pin Current :Ignd [mA]
100
Output Current :Io [mA]
10
5
0.2
0.15
0.1
0.05
0
0
0
20
40
60
80
100
120
0
20
Output Current :Io [mA]
NJM2863/64_3.0V
Control Current v.s. Control Voltage
30
40
60
80
100
120
Output Current :Io [mA]
NJM2863/64_3.0V
Output Voltage v.s. Control Voltage
4
o
@:Ta=25 C
Vin=4.0V
Co=1.0uF(Ceramic)
Cp=0.01uF
Io=30mA
Output Voltage :Vo [V]
Control Current :Icont [uA]
25
o
@:Ta=25 C
Vin=4.0V
Co=1.0uF(Ceramic)
Cp=0.01uF
Io=30mA
3.5
20
15
Rc=50kΩ
Rc=0Ω
10
3
Rc=0Ω
2.5
Rc=50kΩ
2
Rc=100kΩ
1.5
1
5
0.5
Rc=100kΩ
0
0
0
0.5
1
1.5
2
2.5
3
Control Voltage :Vcont [V]
-4-
3.5
4
0
0.5
1
1.5
2
2.5
3
Control Voltage :Vcont [V]
Ver.2004-01-20
NJM2863/64
! ELECTRICAL CHARACTERISTICS
NJM2863/64_3.0V
Output Noise Voltage vs. Noise Bypass Capacitor
300
Output Noise Voltage :Vn [uVrms]
Output Noise Voltage : Vn(uVrms)
o
@:Ta=25 C
VIN=4.0V
LPF:80kHz
@:Ta=25 oC
VIN=4V
Co=1uF (Ceramic)
Io=10mA
250
200
150
100
50
0
1p
10p
100p
1000p
0.01u
NJM2863/64_3.0V
Output Noise Voltage vs. Output Current
100
80
60
40
Co=1.0uF(Ceramic)
Cp=0.01uF
20
0
0.001
0.1u
Co=10uF(Tantalum)
Cp=0.1uF
0.01
Noise Bypass Capacitor : Cp(F)
NJM2863/64_3.0V
Ripple Rejection Ratio v.s. Frequency
90
0.1
1
100
NJM2863/64_3.0V
Ripple Rejection vs. Output Current
100
90
80
Io=10mA
Ripple Rejection Ratio :RR [dB]
10
Output Current :Io [mA]
f=1kHz
Ripple Rejection : RR (dB)
80
70
Io=30mA
60
50
40
@:Ta=25 oC
VIN=4.0V
ein=200mVrms
Co=1.0uF(Ceramic)
Cp=0.01uF
30
20
10
60
50
40
30
1k
100
70
10k
100k
Frequency :f [Hz]
f=10kHz
@:Ta=25o C
VIN=4V
ein=200mVrms
Co=1.0uF (Ceramic)
Cp=0.01uF
20
0.001
0.01
0.1
1
10
100
Output Current : Io(mA)
NJM2863/64_3.0V
Equivalent Series Resistance vs. Output Current
100
Equivalent Series Resistance :ESR [ohm]
o
@:Ta=25 C
VIN=4V
Co=1.0uF(Ceramic)
Cp=0.01uF
10
STABLE REGION
1
0.1
0.02
0.001
0.01
0.1
1
10
100
Output Current :Io [mA]
Ver.2004-01-20
-5-
NJM2863/64
! ELECTRICAL CHARACTERISTICS
NJM2863/64_3.0V
Dropout Voltage v.s. Temperature
0.3
NJM2863/64_3.0V
Control Voltage v.s. Temperature
2
@:VIN=4.0V
Output is open.
Co=1.0uF(Ceramic)
Cp=0.01uF
@:Io=60mA
Co=1.0uF(Ceramic)
Cp=0.01uF
Control Voltage :Vcont-off [V]
Dropout Voltage :dVi-o [V]
0.25
0.2
0.15
0.1
1.5
1
0.5
0.05
0
0
-50
0
50
100
-50
150
0
NJM2863/64_3.0V
Output Voltage v.s. Temperature
3.5
Quiescent Current : Iq [uA]
2.5
Output Voltage :Vo [V]
150
@:VIN=4.0V
Output is open.
Co=1.0uF(Ceramic)
Cp=0.01uF
250
2
1.5
1
@:VIN=4.0V
Io=30mA
Co=1.0uF(Ceramic)
Cp=0.01uF
0.5
100
NJM2863/64_3.0V
Quiescent Current v.s. Temperature
300
3
200
150
100
50
0
0
-50
0
50
100
Temperature :Ta ["C]
-6-
50
Temperature :Ta ["C]
Temperature :Ta ["C]
150
200
-50
0
50
100
150
Temperature :Ta ["C]
Ver.2004-01-20
NJM2863/64
[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.2004-01-20
-7-
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