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參數(shù)資料
| 型號： | LM237SP |
| 廠商： | 意法半導體 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | NEGATIVE VOLTAGE REGULATORS THREE-TERMINAL ADJUSTABLE |
| 中文描述： | 負電壓調(diào)節(jié)器三端可調(diào) |
| 文件頁數(shù)： | 4/10頁 |
| 文件大小： | 273K |
| 代理商： | LM237SP |
LM237, LM337
3-TERMINAL ADJUSTABLE REGULATORS
SLVS047G – NOVEMBER 1981 – REVISED SEPTEMBER 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics, T
J
= 25
°
C
PARAMETER
TEST CONDITIONS
LM237, LM337
MIN
UNIT
TYP
MAX
Input regulation
VI – VO = –3 V to –40 V
VO = –10 V,
VO = –10 V, CADJ = 10
μ
F,
0.01
0.04
%/V
Ripple rejection
f = 120 H
Z
60
dB
f = 120 H
Z
|VO|
≤
5 V
|VO|
≥
5 V
66
77
Output regulation
IO = 10 mA to 1.5 A
50
mV
0.3%
1%
Output noise voltage
f = 10 H
Z
to 10 kH
Z
|VI – VO|
≤
40 V
|VI – VO|
≤
10 V
|VI – VO|
≤
15 V
|VI – VO|
≤
40 V
0.003%
Minimum output current to maintain regulation
2.5
10
mA
1.5
6
Peak output current
1.5
2.2
A
0.15
0.4
Adjustment-terminal current
65
100
μ
A
μ
A
Change in adjustment-terminal current
VI – VO = – 2.5 V to –40 V, IO = 10 mA to MAX
VI – VO = – 3 V to –40 V, IO = 10 mA to 1.5 A,
P
≤
rated dissipation
2
5
Reference voltage (output to ADJ)
–1.213
–1.25
–1.287
V
Unless otherwise noted, these specifications apply for the following test conditions |VI – VO| = 5 V and IO = 0.5 A. All characteristics are measured
with a 0.1-
μ
F capacitor across the input and a 1-
μ
F capacitor across the output. Pulse-testing techniques are used to maintain the junction
temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately.
Input regulation is expressed here as the percentage change in output voltage per 1-V change at the input.
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