LT137A/LM137
LT337A/LM337
TYPICAL PERFORMANCE CHARACTERISTICS
Output Impedance
10
1
OUTPUT VOLTAGE
DEVIATION (V)
V
IN
= –15V
V
OUT
= –10V
I
L
= 500mA
C
L
= 1μF
10
0
T
j
= 25°C
0.8
OUTPUT VOLTAGE
DEVIATION (V)
0.6
0.4
0.2
0
–0.2
–0.4
INPUT VOLTAGE
CHANGE (V)
10
–2
C
ADJ
= 10μF
0
–0.5
–1.0
0
10
20
TIME (μs)
30
40
137A G08
Line Transient Response
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
LOAD CURRENT (A)
V
OUT
= –10V
I
L
= 50mA
C
L
= 1μF
T
j
= 25°C
0
–0.5
–1.0
–1.5
Load Transient Response
C
ADJ
= 0
OUTPUT IMPEDANCE (Ω)
C
ADJ
= 0
C
ADJ
= 10μF
10
–1
C
ADJ
= 0
C
ADJ
= 10μF
V
IN
= –15V
V
OUT
= –10V
I
NL
= 50mA
C
L
= 1μF
T
j
= 25°C
0
10
20
TIME (μs)
30
40
137A G09
10
–3
10
100
1k
10k
FREQUENCY (Hz)
100k
1M
137A G07
Load Regulation*
3
OUTPUT VOLTAGE DEVIATION (%)
0.4
OUTPUT CURRENT (A)
Current Limit
T
j
= –55°C
T
j
= 25°C
T
j
= 150°C
80
75
70
65
60
55
Adjustment Current
0.2
2
0
M, T AND K
PACKAGES
–0.2
1
H
PACKAGE
–0.4
0
0.4
0.8
1.2
1.6
OUTPUT CURRENT (A)
2.0
137A G10
ADJUSTMENT CURRENT (μA)
0
0
10
20
30
INPUT-OUTPUT DIFFERENTIAL (V)
40
137A G11
50
–75 –50 –25
0 25 50 75 100 125 150
TEMPERATURE (°C)
137A G12
*THE LT137A/LT337A HAS LOAD REGULATION
COMPENSATION WHICH MAKES THE TYPICAL
UNIT READ CLOSE TO ZERO. THIS BAND
REPRESENTS THE TYPICAL PRODUCTION
SPREAD.
137afb
6
LINER [ LINEAR TECHNOLOGY ]
