NJM2397
- 2 -
Ver.2006-02-21
ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
PARAMETER SYMBOL RATINGS UNIT
Input Voltage V
IN
+35 V
Adjust terminal Voltage V
ADJ
+6 V
Output Current Io 1.5 A
Power Dissipation P
D
18(Tc<50°C)
W
Operating Junction Temperature Range
Tj -40 to +150
°C
Operating Temperature Range
Topr -40 to 85
°C
Storage Temperature Range
Tstg -50 to 150
°C
ELECTRICAL CHARACTERISTICS (V
IN
=15V, Vo=10V, Io=0.5A, R1=1kΩ, C
IN
=0.33uF, Co=22uF, Tj=25°C)
Measurement is to be conducted is pulse testing.
PARAMETER SYMBOL CONDITIONS MIN. TYP. MAX. UNIT
Input Voltage V
IN
3.8 - 35 V
Output Voltage Vo 1.5 - 20 V
Reference Voltage Vref 1.238 1.29 1.342 V
Line Regulation ∆Vo/∆V
IN
V
IN
=Vo+1V~Vo+17V - 0.04 0.16 %/V
Load Regulation ∆Vo/∆Io V
IN
=Vo+2V, Io=0A~1.5A - 0.2 1.4 %/A
Average Temperature
Coefficient of Output Voltage
∆Vo/∆T Tj=0~125°C
-
±0.02
-
%/°C
Quiescent Current I
Q
Io=0A - - 5 mA
Dropout Voltage
∆V
I-O
Io=0.5A - 0.2 0.5 V
Ripple Rejection RR
Vin=Vo+2V,
ein=0.5Vrms, f=120Hz
45 55 - dB
TEST CIRCUIT
V
2
4
3
1
Io
22uF
Vo
0.33uF
V
IN
R
L
NJM2397
+
I
Q
+
R
1
1k
Ω
R
2
V
Vref
Vo = Vref × (1 + R2/R1)
