7908
Three-terminal negative voltage regulator
TO-220
1 GND
2. IN
3. OUT
Features
1
2
3
Maximum Output current I
OM:
1.5 A
Output voltage V
o:
- 8 V
Continuous total dissipation
2 W (Ta = 25
℃)
P
D
:
15 W (T
C
= 25
℃)
Dimensions in inches and (millimeters)
ABSOLUTE MAXIMUM RATINGS(Operating temperature range applies unless otherwise specified)
Parameter
Input Voltage
Thermal resistance junction-air
Thermal resistance junction-cases
Operating Junction Temperature Range
Storage Temperature Range
Symbol
V
i
R
θJA
R
θJC
T
OPR
T
STG
Value
-35
65
5
0-125
-65-150
Unit
V
℃/W
℃/W
℃
℃
TYP
-8
-8
15
5
12.5
4
1.5
MAX
-8.3
-8.4
160
80
160
80
2
1
0.5
200
-0.6
54
60
1.1
2.1
UNIT
V
V
mV
mV
mV
mV
mA
mA
mA
μV
mV/℃
dB
V
A
ELECTRICAL CHARACTERISTICS
(Vi=-14V,Io=500mA,C
i
=2.2μF, C
o
=1μF, unless otherwise specified )
Parameter
Output voltage
Symbol
Vo
Test conditions
25℃
-10.5V≤Vi≤-23V,Io=5mA-1A,
P≤15W
Io=5mA-1.5A
Io=250mA-750mA
-10.5V≤Vi≤-25V
-11V≤Vi≤-17V
-10.5V≤Vi≤-25V
5mA≤I
O
≤1A
10Hz≤f≤100KHz
I
O
=5mA
-11.5V≤Vi≤-21.5V,f=120Hz
Io=1A
0-125℃
25℃
25℃
25℃
25℃
25℃
0-125℃
0-125℃
25℃
0-125℃
0-125℃
25℃
25℃
2
7908
UTC
1
Ci
2.2μF
Co
1μF
3
Vo
MIN
-7.7
-7.6
Load Regulation
Line regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Output voltage drift
Ripple Rejection
Dropout Voltage
Peak Current
∆Vo
∆Vo
Iq
∆Iq
∆Iq
V
N
△
Vo/
△
T
RR
Vd
Ipk
TYPICAL APPLICATION
Vi
Revision:20170701-P1
ht
t
p
:
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