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LM337KC 数据表(PDF) 4 Page - Texas Instruments

部件名 LM337KC
功能描述  3-TERMINAL ADJUSTABLE REGULATORS
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

LM337KC 数据表(HTML) 4 Page - Texas Instruments

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Electrical Characteristics
LM237, LM337
3-TERMINAL ADJUSTABLE REGULATORS
SLVS047J – NOVEMBER 1981 – REVISED MAY 2007
T
J = 25°C
LM237, LM337
PARAMETER
TEST CONDITIONS(1)
UNIT
MIN
TYP
MAX
Input regulation(2)
VI – VO = –3 V to –40 V
0.01
0.04
%/V
VO = –10 V, f = 120 Hz
60
Ripple rejection
dB
VO = –10 V, f = 120 Hz, CADJ = 10 µF
66
77
|VO| ≤ 5 V
50
mV
Output regulation
IO = 10 mA to 1.5 A
|VO| ≥ 5 V
0.3
1
%
Output noise voltage
f = 10 Hz to 10 kHz
0.003
%
|VI – VO| ≤ 40 V
2.5
10
Minimum output current to maintain
mA
regulation
|VI – VO| ≤ 10 V
1.5
6
|VI – VO| ≤ 15 V
1.5
2.2
Peak output current
A
|VI – VO| ≤ 40 V
0.15
0.4
ADJUSTMENT current
65
100
µA
Change in ADJUSTMENT current
VI – VO = –2.5 V to –40 V, IO = 10 mA to MAX
2
5
µA
Reference voltage
VI – VO = –3 V to –40 V, IO = 10 mA to 1.5 A,
–1.213
–1.25
–1.287
V
(OUTPUT to ADJUSTMENT)
P
≤ rated dissipation
(1)
Unless otherwise noted, the following test conditions apply: |VI – VO| = 5 V and IO = 0.5 A. All characteristics are measured with a
0.1-
µF capacitor across the input and a 1-µF 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.
(2)
Input regulation is expressed here as the percentage change in output voltage per 1-V change at the input.
4
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