ChipFind - документация

Электронный компонент: NJM2862F

Скачать:  PDF   ZIP
NJM2861/62
- 1 -
Ver.2003-03-10
LOW DROPOUT VOLTAGE REGULATOR
s
GENERAL DESCRIPTION
s
PACKAGE OUTLINE
The NJM2861/62 is a low dropout voltage regulator.
Advanced Bipolar technology achieves low noise, high ripple
rejection and low quiescent current.
s
FEATURES
q
High Ripple Rejection
70dB typ. (f=1kHz)
q
Output Noise Voltage
Vno=30
Vrms (Cp=0.01
F)
q
Output capacitor with 1.0uF ceramic capacitor (Vo
2.7V)
q
Output Current
Io(max.)=100mA
q
High Precision Output
Vo
1%
q
Low Dropout Voltage
0.10V typ. (Io=60mA)
q
ON/OFF Control
(Active High)
q
Internal Short Circuit Current Limit
q
Internal Thermal Overload Protection
q
Bipolar Technology
q
Package Outline
MTP5 (MTP5:2.82.91.1mm)
s
PIN CONFIGURATION
1
5
2
3
4
1
5
2
3
4
NJM2861F NJM2862F
s
EQUIVALENT CIRCUIT
V
OUT
GND
V
IN
Thermal
Protection
Bandgap
Reference
Noise
Bypass
Cont
s
OUTPUT VOLTAGE RANK LIST
Device Name
V
OUT
Device
Name V
OUT
NJM286
F21
2.1V
NJM286
F33
3.3V
NJM286
F25
2.5V
NJM286
F38
3.8V
NJM286
F26
2.6V
NJM286
F05
5.0V
NJM286
F27
2.7V
NJM286
F28
2.8V
NJM286
F285
2.85V
NJM286
F03
3.0V
NJM2861F
NJM2862F
PIN FUNCTION
1. CONTROL (Active High)
2. GND
3. NOISE BYPASS
4. V
OUT
5. V
IN
PIN FUNCTION
1.V
IN
2.GND
3.CONTROL (Active High)
4.NOISE BYPASS
5.V
OUT
NJM2861/62
- 2 -
Ver.2003-03-10
s
ABSOLUTE MAXIMUM RATINGS
(Ta=25
C)
PARAMETER SYMBOL
RATINGS
UNIT
Input Voltage
V
IN
+14 V
Control Voltage
V
CONT
+14(note
1) V
Power Dissipation
P
D
200
mW
Operating Temperature
Topr
-
40
+85
C
Storage Temperature
Tstg
-
40
+125
C
(note 1) When input voltage is less than +14V, the absolute maximum control
voltage is equal to the input voltage.
s
ELECTRICAL CHARACTERISTICS
(V
IN
=Vo+1V, C
IN
=0.1
F, Co=1.0uF: Vo
2.7V (Co=2.2uF: Vo
2.6V), Cp=0.01
F, Ta=25
C)
PARAMETER SYMBOL
TEST
CONDITION
MIN.
TYP.
MAX.
UNIT
Output Voltage
Vo
Io=30mA
-1%
-
+1% V
Quiescent Current
I
Q
Io=0mA, expect Icont
-
120 180
A
Quiescent Current
at Control OFF
I
Q(OFF)
V
CONT
=0V
-
-
100 nA
Output Current
Io
Vo
-
0.3V
100 130 - mA
Line Regulation
Vo/
V
IN
V
IN
=Vo+1V
Vo+6V, Io=30mA
-
-
0.10 %/V
Load Regulation
Vo/
Io Io=0
60mA
-
-
0.03 %/mA
Dropout Voltage
V
I
-
O
Io=60mA
-
0.10 0.18 V
Ripple Rejection
RR
ein=200mVrms,f=1kHz, Io=10mA
V
IN
=Vo+1V, Vo=3V Version
-
70
-
dB
Average Temperature
Coefficient of Output
Voltage
Vo/
Ta Ta=0
85
C, Io=10mA
-
50
-
ppm/
C
Output Noise Voltage
V
NO
f=10Hz
80kHz, Io=10mA,
Vo=3V Version
-
30
-
Vrms
Control Voltage for
ON-state
V
CONT(ON)
1.6
-
-
V
Control Voltage for
OFF-state
V
CONT(OFF)
-
-
0.6 V
(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.
s
TEST CIRCUIT

V
IN
V
IN
V
OUT
CONTROL
NOISE
BYPASS
GND
0.1uF
I
IN
I
CONT
V
CONT
Cp=0.01uF
I
OUT
V
OUT
V
V
A
A
1.0uF
2.2uF(Vo
2.6V)
OR
(ceramic)
NJM2861/62
- 3 -
Ver.2003-03-10
s
TYPICAL APPLICATION
x
In case that ON/OFF Control is not required:
V
IN
V
OUT
CONTROL
NOISE
BYPASS
GND
0.1uF
Cp=0.01uF
V
OUT
V
IN
R
(0
300k
)
1.0uF
2.2uF(Vo
2.6V)
OR
(ceramic)
Connect control terminal to V
IN
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".
y
In use of ON/OFF CONTROL:
V
IN
V
OUT
CONTROL
NOISE
BYPASS
GND
0.1uF
Cp=0.01uF
V
OUT
V
IN
R
1.0uF
2.2uF(Vo
2.6V)
OR
(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 0.01uF greater to avoid the problem.



NJM2861/62
- 4 -
Ver.2003-03-10
s
ELECTRICAL CHARACTERISTICS

NJM2861/62
- 5 -
Ver.2003-03-10
s
ELECTRICAL CHARACTERISTICS