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LM137K 数据手册 - ST Microelectronics（意法半导体）
制造商:
ST Microelectronics（意法半导体）
分类:
稳压芯片
封装:
TO-204
描述:
负稳压器三端可调 NEGATIVE VOLTAGE REGULATORS THREE-TERMINAL ADJUSTABLE
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LM137K数据手册
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Electrical characteristics LM337
6/17 DocID2167 Rev 5
4 Electrical characteristics
T
J
= 0 to 150 °C V
I
- V
O
= 5 V, I
O
= 0.5 A unless otherwise specified.
Table 4. Electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
REF
Reference voltage
T
a
= 25°C -1.213 -1.25 -1.287
V
|V
I
- V
O
| = 3 to 40 V, T
J
= T
min
to T
max
|I
O
| = 10mA to |I
O(max)
|, P ≤ P
max
-1.2 -1.25 -1.3
K
VI
Line regulation
(1)
T
a
= 25°C
|V
I
- V
O
| = 3 to 40 V
I
O
= 0.1 A 0.01 0.04
%/V
I
O
= 20 mA 0.01 0.04
K
VO
Load regulation
(1)
T
a
= 25°C
|I
O
| = 10mA to |I
O(max)
|
|V
O
| ≤ 5 V 15 50 mV
|V
O
| ≥ 5 V 0.3 1 %
Thermal regulation T
a
= 25°C, pulse 10 ms 0.003 0.04 %/W
I
ADJ
Adjustment pin current 65 100 µA
ΔI
ADJ
Adjustment pin current
change
T
a
= 25°C, |I
O
| = 10 mA to |I
O(max)
|
|V
I
- V
O
| = 3 to 40 V
25µA
K
VI
Line regulation
(1)
|V
I
- V
O
| = 3 to 40 V 0.02 0.07 %/V
K
VO
Load regulation
(1)
|I
O
| = 10mA to |I
O(max)
|
|V
O
| ≤ 5 V 20 70 mV
|V
O
| ≥ 5 V 0.3 1.5 %
|I
O(min)
| Minimum load current
|V
I
- V
O
| ≤ 40 V 2.5 10
mA
|V
I
- V
O
| ≤ 10 V 1.5 6
I
OS
Short circuit output current
|V
I
- V
O
| ≤ 15 V 1.5 2.2
A
|V
I
- V
O
| = 40 V, T
J
=2 5°C 0.15 0.4
V
NO
RMS output noise
(% of V
O
)
T
a
= 25°C, f = 10 Hz to 10 kHz 0.003 %
R
VF
Ripple rejection ratio
V
O
= -10 V, f = 120 Hz 60
dB
C
ADJ
= 10 µF 66 77
K
VT
Temperature stability 0.6 %
K
VH
Long term stability T
a
= 125°C, 1000 H 0.3 1 %
1. Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output
voltage due to heating effects are covered under the specification for thermal regulation.
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