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L4938NPD 数据表(PDF) 4 Page - STMicroelectronics

部件名 L4938NPD
功能描述  DUAL MULTIFUNCTION VOLTAGE REGULATOR
PDF  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L4938NPD 数据表(HTML) 4 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (VS = 14V; –40
°C ≤ TJ ≤ 125°C unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
VS
Operating Supply Voltage
25
V
VO1
Standby Output Voltage
6V
≤ VS ≤ 25V
1mA
≤ IO1 ≤ 50mA
4.90
5.00
5.10
V
VO2 -VO1
Output Voltage 2 Tracking Error
(note 1)
6V
≤ VS ≤ 25V
5mA
≤ IO2 ≤ 500mA
Enable = LOW
–25
+25
mV
IADJ
ADJ Input Current
IO1 = 1mA; IO2 = 5mA
–1
0.1
1
µA
VDP1
Dropout Voltage 1
IO1 = 10mA
IO1 = 50mA
0.1
0.2
0.25
0.4
V
V
VIO1
Input to Output Voltage
Difference in Undervoltage
Condition
VS = 4V, IO1 = 35mA
0.4
V
VDP2
Dropout Voltage 2
IO1 = 100mA
IO1 = 500mA
0.2
0.3
0.3
0.6
V
V
VIO2
Input to Output Voltage
Difference in Undervoltage
Condition
VS = 4.6V, IO1 = 350mA
0.6
V
VOL 1.2
Line Regulation
6V
≤ VS ≤ 25V
IO1 = 1mA; IO2 = 5mA
20
mV
VOLO1
Load Regulation 1
1mA
≤ IO1 ≤ 50mA
25
mV
VOLO2
Load Regulation 2
5mA
≤ IO2 ≤ 500mA
50
mV
ILIM1
Current Limit 1
VO1 = 4.5V
VO1 = 0V (note 2)
55
25
100
50
200
100
mA
mA
ILIM2
Current Limit 2
VO2 = 0V
550
1000
1700
mA
IQSB
Quiescent Current Standby Mode
(output 2 disabled)
IO1 = 0.3mA; TJ < 100
°C
VEN
≥ 2.4V
VS = 14V
VS = 3.5V
210
340
290
850
µA
µA
IQ
Quiescent Current
IO1 = 50mA
IO1 = 500mA
30
mA
ENABLE
VENL
Enable Input LOW Voltage
(output 2 active)
–0.3
1.5
V
VENH
Enable Input HIGH Voltage
2.4
7
V
VENhyst
Enable Hysteresis
30
75
200
mV
IEN
Enable Input Current
0V < VEN < 1.2V
2.5V < VEN <7V
–10
–1
–1.5
0
–0.5
+1
µA
µA
L4938N - L4938ND - L4938NPD
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