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參數(shù)資料
| 型號： | L4909 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | EXTERNALLY ADJUSTABLE MULTIFUNCTION REGULATOR |
| 中文描述： | 外部可調(diào)多功能調(diào)節(jié)器 |
| 文件頁數(shù)： | 4/7頁 |
| 文件大?。?/td> | 61K |
| 代理商： | L4909 |
L4909
4/7
SVR2
REG2 supply voltage rejec.
freq=120 Hz to 1KHz
60
dB
Vo3
REG3 output voltage range
5
12
V
V(FB3)
REG3 feedback voltage
EN3=ON;
1.22
1.27
1.32
V
Ilim3
REG3 output current limit
EN3=ON; Vin-Vo3<12V
1.20
1.70
A
line regulation
Io3=10mA; Vin-Vo3=3 to 25 V
Io3=10mA; Vin-Vo3=3 to 12 V
0.6
0.1
2
%
load regulation
Io3=10 mA to 1.2A
Io3=10 mA to 0.5A
0.5
0.1
2
%
Vd3
REG3 drop out
Io3=500mA
2.20
V
SVR3
REG3 supply voltage rejec.
freq=120 Hz to 1KHz
60
dB
ENx
enable input voltage
(active high)
STAND_BY
ON
3.5
0.8
V
V
Istby
current consumption in stand_by
EN1=EN2=EN3
≤
0.5 V
20
μ
A
ITRIG
current at TRIG output
SCR trigger circuit in ON state;
V(TRIG) = 2V
25
mA
ZTRIG
TRIG to GND impedance
SCR trigger circuit in OFF state
0.2
K
V(FB)_TR
FBx voltage for trigger SCR on
any regulator
1.52
V
I(FB)
Feedback’s input current
any regulator
2
μ
A
I(EN)
EN’s input current
V(EN) = 5V
160
μ
A
Ion
current consumption in ON state
(current in the externalfeedback resistors not
included)
one regulator ON; Vo = 12V
two regulators ON; Vo = 12V
three regulators ON; Vo = 12V
11
20
29
mA
V_OC_L
current_warning output
voltage
warning conditions
Isink < 3 mA
0.40
V
I_OC_H
current_warning leakage
no warning conditions
V(OC) = 15V
1
μ
A
I_oc/Ilim
warning threshold current / limit
current
any regulator
Vin - Vout <12V
0.6
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
V
o3
-------------
V
o3
-------------
ELECTRICAL CHARACTERISTCS
(continued)
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