參數資料
型號: LM237KTE
廠商: Texas Instruments, Inc.
英文描述: 3-TERMINAL ADJUSTABLE REGULATORS
中文描述: 三端可調調節(jié)器
文件頁數: 5/10頁
文件大小: 273K
代理商: LM237KTE
LM237, LM337
3-TERMINAL ADJUSTABLE REGULATORS
SLVS047G – NOVEMBER 1981 – REVISED SEPTEMBER 2003
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
C1
+
C2
R1
R2
+
INPUT
OUTPUT
ADJUSTMENT
LM237
or
LM337
VO
VI
C1 is a 1-
μ
F solid tantalum capacitor required only if the regulator is more than 10 cm (4 in) from the power-supply filter capacitor.
C2 is a 1-
μ
F solid tantalum or 10-
μ
F aluminum electrolytic capacitor required for stability.
R2
R1
–VO
–1.25
1
R1 typically is 120
.
, where VO is the output in volts.
Figure 1. Adjustable Negative-Voltage Regulator
ADJUSTMENT
OUTPUT
INPUT
VI
RS
VO
LM237
or
LM337
RS =ILIMIT
Figure 2. Current-Limiting Circuit
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