NJRC NJM287BF24 Low dropout voltage regulator Datasheet

NJM2871B/72B
Low Dropout Voltage Regulator
! GENERAL DESCRIPTION
The NJM2871B/72B are low dropout voltage regulator designed for
cellular phone applications.
Advanced Bipolar technology achieves low noise, high ripple
rejection and low quiescent current.
! PACKAGE OUTLINE
NJM2871BF/72BF
! FEATURES
" High Ripple Rejection
75dB typ. (f=1kHz Vo=3V version)
" Output Noise Voltage
Vno=30µVrms typ. (Cp=0.01µF)
" Output capacitor with 1.0uF ceramic capacitor(Vo≥2.7V: Version)
" Output Current
Io(max.)=150mA
" High Precision Output
Vo ±1.0%
" Low Dropout Voltage
0.10V typ. (Io=60mA)
" Input Voltage Range
+2.3 ∼ +14V(Vo≤2.0V version)
" ON/OFF Control
(Active High)
" Internal Short Circuit Current Limit
" Internal Thermal Overload Protection
" Bipolar Technology
" Package Outline
SOT-23-5 (MTP5)
! PIN CONFIGURATION
5
4
1 2 3
1. CONTROL (Active High)
2. GND
3. NOISE BYPASS
4. VOUT
5. VIN
5
4
1 2 3
NJM2871BF
1. VIN
2. GND
3. CONTROL (Active High)
4. NOISE BYPASS
5. VOUT
NJM2872BF
! EQUIVALENT CIRCUIT
V OUT
VIN
Control
Thermal
Protection
Bandgap
Reference
Noise
Bypass
GND
Ver.2006-02-20
-1-
NJM2871B/72B
! OUTPUT VOLTAGE RANK LIST
Device Name
VOUT
Device Name
NJM287*BF15
1.5V
NJM287*BF26
NJM287*BF18
1.8V
NJM287*BF27
NJM287*BF19
1.9V
NJM287*BF28
NJM287*BF02
2.0V
NJM287*BF29
NJM287*BF21
2.1V
NJM287*BF03
NJM287*BF23
2.3V
NJM287*BF31
NJM287*BF24
2.4V
NJM287*BF32
NJM287*BF25
2.5V
NJM287*BF33
VOUT
2.6V
2.7V
2.8V
2.9V
3.0V
3.1V
3.2V
3.3V
Device Name
NJM287*BF34
NJM287*BF35
NJM287*BF38
NJM287*BF04
NJM287*BF48
NJM287*BF05
VOUT
3.4V
3.5V
3.8V
4.0V
4.8V
5.0V
! ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Input Voltage
VIN
Control Voltage
VCONT
(Ta=25°C)
RATINGS
UNIT
+14
V
+14(*1)
V
350(*2)
Power Dissipation
PD
SOT-23-5
mW
200(*3)
Operating Temperature
Topr
−40 ∼ +85
°C
Storage Temperature
Tstg
−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)
(*3) : Device itself
! Operating voltage
VIN=+2.3 ∼ +14V (In case of Vo<2.1V version)
! ELECTRICAL CHARACTERISTICS
(VIN=Vo+1V, CIN=0.1µF, Co=1.0µF: Vo≥2.7V (Co=2.2µF : 1.8V<Vo≤2.6V:, Co=4.7µF : Vo≤1.8V), Cp=0.01µF, Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
Output Voltage
Vo
Io=30mA
-1.0%
−
+1.0%
V
Quiescent Current
Quiescent Current
at Control OFF
Output Current
Line Regulation
IQ
Io=0mA, except Icont
−
120
180
µA
VCONT=0V
−
−
100
nA
Io
∆Vo/∆VIN
Vo-0.3V
VIN=Vo+1V ∼ Vo+6V, Io=30mA
150
−
200
−
−
0.10
mA
%/V
Load Regulation
Dropout Voltage (*4)
∆Vo/∆Io
∆VI−O
Io=0 ∼ 100mA
Io=60mA
ein=200mVrms, f=1kHz, Io=10mA,
Vo=3V version
−
−
−
0.10
0.03
0.18
%/mA
V
−
75
−
dB
Ta=0 ∼ +85°C, Io=10mA
−
± 50
−
ppm/°C
f=10Hz∼80kHz, Io=10mA, Vo=3V Version
−
30
−
µVrms
VCONT(ON)
1.6
−
−
V
VCONT(OFF)
−
−
0.6
V
Ripple Rejection
Average Temperature
Coefficient of Output
Voltage
Output Noise Voltage
Control Voltage for
ON-state
Control Voltage for
OFF-state
IQ(OFF)
RR
∆Vo/∆Ta
VNO1
(*4): 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.
-2-
Ver.2006-02-20
NJM2871B/72B
! TEST CIRCUIT
A
IIN
VIN
VIN
0.1µF
A
V
*5
Ver.2006-02-20
VOUT
NJM287*B
ICONT
CONTROL
GND
1.0µF
*5
IOUT
V
VOUT
NOISE
BYPASS
Cp=0.01µF
VCONT
1.8V<Vo ≤ 2.6V version : Co=2.2µF
Vo≤ 1.8V version : Co=4.7µF
-3-
NJM2871B/72B
! TYPICAL APPLICATION
1 In the case where ON/OFF Control is not required:
VIN
VIN
0.1µF
VOUT
NJM287*B
VOUT
1.0µF
*6
R
(0∼300kΩ)
CONTROL
NOISE
BYPASS
Cp=0.01µF
GND
*6
1.8V<Vo ≤ 2.6V version : Co=2.2µF
Vo≤1.8V version : Co=4.7µF
Connect control terminal to VIN terminal
2 In use of ON/OFF CONTROL:
VIN
VIN
VOUT
NJM287*B
0.1µF
VOUT
1.0µF
*6
R
CONTROL
NOISE
BYPASS
GND
*6
Cp=0.01µF
1.8V<Vo ≤ 2.6V version : Co=2.2µF(ceramic)
Vo≤1.8V version : Co=4.7µF(ceramic)
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.
%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.
-4-
Ver.2006-02-20
NJM2871B/72B
! POWER DISSIPATION vs. AMBIENT TEMPERATURE
NJM2871B/72BF Power Dissipation
(Topr=-40~+85℃,Tj=125℃,PD =200mW(Ta≦25℃))
Power Dissipation PD (mW)
500
On Board(114.3×76.2×1.6mm, FR-4)
400
300
Device itself
200
100
0
-50
-25
0
25
50
75
100
Ambient Temperature Ta(℃)
Ver.2006-02-20
-5-
NJM2871B/72B
! ELECTRICAL CHARACTERISTICS
NJM2871B_3V
Output Voltage vs. Output Current
NJM2871B_3V
Output Voltage v.s. Input Voltage
3.2
4
o
@:Ta=25 C
Co=1.0µF(Ceramic)
Cp=0.01µF
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=1.0µF(Ceramic)
Cp=0.01µF
2.8
0.5
Io=100mA
2.7
0
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
0
50
100
Input Voltage :Vin [V]
NJM2871B_3V
Ground Pin Current vs. Output Voltage
200
250
300
NJM2871B_3.0V
Dropout Voltage vs. Output Current
20
0.3
o
@:Ta=25 C
Co=1.0µF(Ceramic)
Cp=0.01µF
o
@:Ta=25 C
VIN=4V
Co=1.0µF(Ceramic)
Cp=0.01µF
0.25
15
Dropout Voltage :dVi-o [V]
Ground Pin Current :IGND [ mA]
150
Output Current :Io [mA]
10
5
0.2
0.15
0.1
0.05
0
0
0
50
100
150
200
0
50
100
150
200
Output Current :Io [mA]
Output Current :Io [mA]
NJM2871B_3.0V
Control Current v.s. Control Voltage
NJM2871B_3.0V
Output Voltage v.s. Control Voltage
30
4
o
@:Ta=25 C
VIN=4.0V
Co=1.0µF(Ceramic)
Cp=0.01µF
Io=30mA
Output Voltage :Vo [V]
Control Current :ICONT [ µA]
25
o
@:Ta=25 C
VIN=4.0V
Co=1.0µF(Ceramic)
Cp=0.01µF
Io=30mA
3.5
20
15
Rc=0Ω
Rc=50kΩ
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]
-6-
3.5
4
0
0.5
1
1.5
2
2.5
3
Control Voltage :VCONT [V]
Ver.2006-02-20
NJM2871B/72B
! ELECTRICAL CHARACTERISTICS
NJM2871B_3V
Peak Output Current vs. Input Voltage
NJM2871B_3V
Load Regulation vs. Output Current
300
0
250
Peak Output Current :Io MAX [mA]
Load Regulation :dVo/dIo [mV]
-10
-20
-30
-40
o
@:Ta=25 C
VIN=4V
Co=1.0µF(Ceramic)
Cp=0.01µF
-50
200
150
100
50
o
@:Ta=25 C
Co=1.0µF(Ceramic)
Cp=0.01µF
0
0
50
100
150
200
4
6
8
Output Current :Io [mA]
10
NJM2871B_3.0V
Quiescent Current v.s. Input Voltage
2000
o
1200
800
400
0
5
@:Ta=25 C
VIN=4V
Co=1µF(Ceramic)
Io=10mA
250
Output Noise Voltage : Vn ( µ Vrms)
Quiescent Current : IQ [ µ A]
o
@:Ta=25 C
Output is open.
Co=1.0µF(Ceramic)
Cp=0.01µF
including Icont
0
10
200
150
100
50
0
1p-12
10
15
-11
10p
10
-10
100p
10
-9
1000p
10
-8
0.01µ
10
-7
0.1µ
10
Noise Bypass Capacitor : Cp(F)
Input Voltage :VIN [V]
100
14
NJM2871B_3.0V
Output Noise Voltage vs. Noise Bypass Capacitor
300
1600
12
Input Voltage : VIN [V]
NJM2871B_3.0V
Ripple Rejection Ratio v.s. Frequency
NJM2871B_3.0V
Output Noise Voltage vs. Output Current
90
80
60
40
Co=1.0µF(Ceramic)
20
Co=2.2µF(Ceramic)
0
0.001
Io=10mA
70
Io=30mA
60
50
40
o
@:Ta=25 C
VIN=4.0V
ein=200mVrms
Co=1µF(Ceramic)
Cp=0.01µF
30
20
0.01
0.1
1
Output Current :Io [mA]
Ver.2006-02-20
Io=0mA
80
Ripple Rejection Ratio :RR [dB]
Output Noise Voltage :Vn [ µ Vrms]
o
@:Ta=25 C
VIN=4V
Cp=0.01µF
LPF:80kHz
10
100
10
10
100
1k
1000
10k4
10
5
100k
10
Frequency :f [Hz]
-7-
NJM2871B/72B
! ELECTRICAL CHARACTERISTICS
NJM2871B_3.0V
Equivalent Series Resistance vs. Output Current
NJM2871B_3.0V
Ripple Rejection vs. Output Current
100
100
o
@:Ta=25 C
VIN=4V
Co=1.0µF(Ceramic)
Cp=0.01µF
Equivalent Series Resistance :ESR [ Ω
Ω]
90
f=1kHz
Ripple Rejection : RR (dB)
80
70
f=10kHz
60
50
40
o
@:Ta=25 C
VIN=4.0V
ein=200mVrms
Co=1.0µF(Ceramic)
30
20
0.001
10
STABLE REGION
1
0.1
0.02
0.01
0.1
1
10
0.001
100
0.01
0.1
1
10
100
Output Current :Io [mA]
Output Current : Io(mA)
NJM2871B_3.0V
Output Voltage v.s. Temperature
NJM2871B_3.0V
Dropout Voltage v.s. Temperature
0.3
3.1
@:VIN=4.0V
Io=30mA
Co=1.0µF(Ceramic)
Cp=0.01µF
@:Io=60mA
Co=1.0µF(Ceramic)
Cp=0.01µF
0.25
Output Voltage :Vo [V]
Dropout Voltage :dVi-o [V]
3.05
0.2
0.15
0.1
3
2.95
0.05
2.9
0
-50
0
50
100
-50
150
0
50
150
Temperature :Ta [ C]
Temperature :Ta [ C]
NJM2871B_3.0V
Control Voltage v.s. Temperature
NJM2871B_3.0V
Control Current v.s. Temperature
2
10
@:VIN=4.0V
Output is open.
Co=1.0µF(Ceramic)
Cp=0.01µF
@:VIN=4.0V
Output is open.
Co=1.0µF(Ceramic)
Cp=0.01µF
V CONT=1.6V
8
1.5
Control Current : Icont ( µ A)
Control Voltage :Vcont-off [V]
100
o
o
1
0.5
6
4
2
0
0
-50
0
50
100
o
Temperature :Ta [ C]
-8-
150
-50
0
50
100
150
o
Temperature Ta ( C)
Ver.2006-02-20
NJM2871B/72B
! ELECTRICAL CHARACTERISTICS
NJM2871B_3.0V
Short Circuit Current v.s. Temperature
NJM2871B_3.0V
Quiescent Current v.s. Temperature
200
300
Short Circuit Current :Isc [mA]
250
Quiescent Current : IQ [ µ A]
@:VIN=4.0V
Output is short to ground.
Co=1.0µF(Ceramic)
Cp=0.01µF
@:VIN=4.0V
Output is open.
Co=1.0µF(Ceramic)
Cp=0.01µF
200
150
100
150
100
50
50
0
0
-50
0
50
100
150
-50
0
o
100
150
Temperature :Ta [ C]
NJM2871B_3.0V
Line Regulation v.s. Temperature
NJM2871B_3.0V
Load Regulation v.s. Temperature
0.2
0.03
@:VIN=4.0-9.0V
Io=30mA
Co=1.0µF(Ceramic)
Cp=0.01µF
@:VIN=4.0V
Io=0-100mA
Co=1.0µF(Ceramic)
Cp=0.01µF
0.025
Load Regulation :dVo/dIo [%/mA]
Line Regulation :dVo/dVin [%/V]
50
o
Temperature :Ta [ C]
0.1
0
-0.1
-0.2
0.02
0.015
0.01
0.005
0
-50
0
50
100
150
o
-50
0
50
100
150
o
Temperature :Ta [ C]
Temperature :Ta [ C]
NJM2871B_3.0V
Output Voltage v.s. Temperature
3.5
3
Output Voltage :Vo [V]
2.5
2
1.5
1
@:VIN=4.0V
Io=30mA
Co=1.0µF(Ceramic)
Cp=0.01µF
0.5
0
-50
0
50
100
150
200
o
Temperature :Ta [ C]
Ver.2006-02-20
-9-
NJM2871B/72B
! ELECTRICAL CHARACTERISTICS
NJM2871B_3.0V
ON/OFF Transient Response without Load
NJM2871B_3.0V
ON/OFF Transient Response
15
7
15
7
5
10
Control Voltage
5
0
4
Output Voltage
3
-5
2
-10
1
0
-1
0
1
2
3
Time : t [S]
4
6
5
Output Voltage : Vo [V]
Control Voltage
Control Voltage : Vo [V]
6
Output Voltage : Vo [V]
o
@:Ta=25 C
VDD=4.0V
Co=1.0µF(Ceramic)
Cp=0.01µF
Io=30mA
10
5
0
4
Output Voltage
3
-5
2
-10
-15
1
-15
-20
0
-20
-25
-1
5
Control Voltage : Vo [V]
o
@:Ta=25 C
VDD=4.0V
Co=1.0µF(Ceramic)
Cp=0.01µF
Io=0mA
-25
0
4
8
NJM2871B_3.0V
Load Transient Response
12
Time : t [mS]
16
20
NJM2871B_3.0V
Input Transient Response
3.1
150
3.1
7
100
3.08
6
Output Voltage : Vo [V]
3.06
50
0
3.04
-50
3.02
Output Voltage
-100
3
3.06
3.04
4
3.02
3
Output Voltage
o
-150
2.96
-200
2.96
-250
200
2.94
0
40
80
120
Time : t [ µS]
160
2
3
2.98
2.94
5
Input Voltage
@:Ta=25 C
VDD=4.0V
Co=1.0µF(Ceramic)
Cp=0.01µF
Io=30mA
2.98
Input Voltage : VIN [V]
Output Current
Output Voltage : Vo [V]
3.08
Output Current : Io [mA]
o
@:Ta=25 C
VDD=4.0V
Co=1.0µF(Ceramic)
Cp=0.01µF
1
0
-1
0
40
80
120
Time : t [ µS]
160
200
[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.
- 10 -
Ver.2006-02-20
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