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參數(shù)資料
| 型號： | L4903 |
| 廠商： | 意法半導體 |
| 英文描述： | DUAL 5V REGULATOR WITH RESET AND DISABLE FUNCTIONS |
| 中文描述： | 5V的雙帶復位和禁用功能調(diào)節(jié) |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 140K |
| 代理商： | L4903 |
ABSOLUTE MAXIMUM RATINGS
Symbol
V
IN
V
t
P
tot
T
stg
, T
j
Parameter
Value
24
60
1
– 40 to 150
Unit
V
V
W
°
C
DC Input Voltage
Transient Input Overvoltage (t = 40ms)
Power Dissipation at T
amb
= 50
°
C
Storage and Junction Temperature
THERMAL DATA
Symbol
R
th (j-pin)
R
th (j-a)
Parameter
Value
70
100
Unit
°
C/W
°
C/W
Thermal Resistance Junction-pin 4
Thermal Resistance Junction-ambient
Max.
Max.
ELECTRICALCHARACTERISTICS
(V
IN
= 14.4V,T
amb
= 25
o
C unlessotherwise specified)
Symbol
V
i
V
01
V
02 H
V
02 L
I
01
I
L01
I
02
V
I01
Parameter
TestConditions
Min.
Typ.
Max.
20
5.15
V
01
Unit
V
V
V
V
mA
μ
A
mA
V
V
V
mV
mV
mV
mV
mV
mA
DC Operating Input Voltage
Output Voltage 1
Output Voltage 2 HIGH
Output Voltage 2 LOW
Output Current 1 max. (*)
Leakage Output 1 Current
Output Current 2 max. (*)
Output 1 Dropout Voltage (*)
R Load 1k
R Load 1k
I
02
= – 5mA
V
01
= – 100mV
V
IN
= 0, V
01
≤
3V
V
02
= – 100mV
I
01
= 10mA
I
01
= 50mA
4.95
V
01
–0.1
5.05
5
0.1
50
1
100
0.7
0.75
6.4
250
5
5
5
10
0.8
0.9
V
IT
V
ITH
V
01
V
02
V
01
V
02
IQ
Input Threshold Voltage
Input Threshold Voltage Hyst.
Line Regulation 1
Line Regulation 2
Load Regulation 1
Load Regulation 2
Quiescent Current
V
01
+ 1.2
V
01
+ 1.7
7V < V
IN
< 18V, I
01
= 5mA
7V < V
IN
< 18V, I
02
= 5mA
V
IN1
= 8V, 5mA < I
01
< 50mA
V
IN1
= 8V, 5mA < I
02
< 100mA
I
01
= I
02
≤
5mA
0 < V
IN
< 13V
7V < V
IN
< 13V V
02
LOW
7V < V
IN
< 13V V
02
HIGH
6.3V < V
< 13V, V
IN2
= 0
I
01
≤
5mA, I
02
= 0
50
50
20
50
4.5
2.7
1.6
0.6
6.5
4.5
3.5
0.9
I
Q1
Quiescent Current 1
mA
V
RT
V
RTH
V
RH
V
RL
t
RD
t
d
Reset Threshold Voltage
Reset Threshold Hysteresis
Reset Output Voltage HIGH
Reset Output Voltage LOW
Reset Pulse Delay
Timing Capacitor Discharge
Time
V
02
DisableThreshold Voltage
V
02
DisableInput Current
V
02
– 0.04
30
V
02
– 1
4.7
50
4.12
0.25
5
V
02
– 0.02
80
V
02
0.4
11
20
V
mV
V
V
ms
μ
s
I
R
= 500
μ
A
I
R
= – 5mA
C
t
= 10nF
C
t
= 10nF
3
V
DT
I
D
1.25
- 150
30
0.3
- 0.8
84
80
2.4
V
V
D
≤
0.4V
V
D
≥
2.4V
μ
A
μ
A
V
T,
V
02
SVR1
SVR2
T
Thermal Drift
– 20
°
C
≤
T
amb
≤
125
°
C
mV/
°
C
Supply Voltage Rejection
Supply Voltage Rejection
f = 100Hz, V
R
= 0.5V, Io = 50mA
f = 100Hz, V
R
= 0.5V, I
o
=
100mA
50
50
dB
dB
T
JSD
Thermal Shut Down
150
°
C
*The dropoutvoltage is defined as the difference betweenthe input andthe outputvoltage when the output voltage is lowered of 25 mV under
constant output current condition.
L4903
3/8
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