LM137 STMicroelectronics, LM137 Datasheet - Page 7

• Manufacturer Part Number: LM137
• Description: THREE-TERMINAL ADJUSTABLE NEGATIVE VOLTAGE REGULATOR
• Manufacturer: STMicroelectronics

Specifications of LM137

• Ripple Rejection: 77 dB
• Excellent Thermal Regulation: 0.002%/V

LM137, LM337
Table 5.
1. Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output
Symbol
|I
ΔI
V
O(min)
V
K
I
K
K
R
K
K
K
I
ADJ
voltage due to heating effects are covered under the specification for thermal regulation.
REF
OS
ADJ
NO
VO
VO
VT
VH
VF
VI
VI
| Minimum load current
Reference voltage
Line regulation
Load regulation
Thermal regulation
Adjustment pin current
Adjustment pin current
change
Line regulation
Load regulation
Short circuit output current
RMS output noise
(% of V
Ripple rejection ratio
Temperature stability
Long term stability
Electrical characteristics of LM337
O
Parameter
)
(1)
(1)
(1)
(1)
T
|V
|I
T
|V
T
|I
T
T
|V
|V
|I
|V
|V
|V
|V
T
V
C
T
a
O
O
a
a
O
a
a
a
a
O
ADJ
I
I
I
I
I
I
I
I
| = 10mA to |I
| = 10mA to |I
| = 10mA to |I
= 25°C
= 25°C, pulse 10 ms
= 25°C, |I
= 125°C, 1000 H
= 25°C
= 25°C
= 25°C, f = 10 Hz to 10 kHz
- V
- V
- V
- V
- V
- V
- V
- V
= -10 V, f = 120 Hz
= 10 µF
O
O
O
O
O
O
O
O
| = 3 to 40 V, T
| = 3 to 40 V
| = 3 to 40 V
| = 3 to 40 V
| ≤ 40 V
| ≤ 10 V
| ≤ 15 V
| = 40 V, T
Doc ID 2167 Rev 4
O
Test conditions
| = 10 mA to |I
O(max)
O(max)
O(max)
J
=2 5°C
J
|, P ≤ P
|
|
= T
I
I
|V
|V
|V
|V
O
O
min
O
O
O
O
= 0.1 A
= 20 mA
O(max)
| ≤ 5 V
| ≥ 5 V
| ≤ 5 V
| ≥ 5 V
max
to T
|
max
-1.213
Min.
0.15
-1.2
1.5
66
Electrical characteristics
0.003
0.003
-1.25
-1.25
Typ.
0.01
0.01
0.02
0.3
0.3
2.5
1.5
2.2
0.4
0.6
0.3
65
60
77
15
20
2
-1.287
Max.
0.04
0.04
0.04
0.07
-1.3
100
1.5
50
70
10
1
5
6
1
%/W
Unit
%/V
%/V
mV
mV
mA
µA
µA
dB
%
%
%
%
%
V
A
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