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L4915 数据表(PDF) 2 Page - STMicroelectronics

部件名 L4915
功能描述  ADJUSTABLE VOLTAGE REGULATOR PLUS FILTER
PDF  7 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L4915 数据表(HTML) 2 Page - STMicroelectronics

  L4915 Datasheet HTML 1Page - STMicroelectronics L4915 Datasheet HTML 2Page - STMicroelectronics L4915 Datasheet HTML 3Page - STMicroelectronics L4915 Datasheet HTML 4Page - STMicroelectronics L4915 Datasheet HTML 5Page - STMicroelectronics L4915 Datasheet HTML 6Page - STMicroelectronics L4915 Datasheet HTML 7Page - STMicroelectronics  
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BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
Vi
Peak Input Voltage (300 ms)
40
V
Vi
DC Input Voltage
28
V
IO
Output Current
Internally Limited
Ptot
Power Dissipation
Internally Limited
Tstg
Storage and Junction Temperature
– 40 to 150
°C
THERMAL DATA
Symbol
Parameter
Value
Unit
Rth j-amb
Thermal Resistance Junction-ambient
Max.
80
°C/W
Rth j-pins
Thermal Resistance Junction-pins
Max.
20
°C/W
ELECTRICAL CHARACTERISTICS
(Tamb =25
oC; Vi = 13.5 V, VO = 8.5V, circuit of Fig. 1, unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Vi
Input Voltage
20
V
Vo
Output Voltage
Vi = 6 to 18V, Io = 5 to 150mA
4
11
V
∆VI/O
Controlled Input-output Dropout Voltage
Io = 5 to 150mA, Vi = 6 to 10V
1.6
2.1
V
∆VO
Line Regulation
Vi = 12 to 18V, Io = 10mA
1
20
mV
∆Vo
Load Regulation
Io = 5 to 250mA,
ton =30
µs, toff = ≥ 1ms
50
100
mV
∆Vo
Load Regulation (filter mode)
Vi = 8.5V, Io = 5 to 150mA
ton =30
µs, toff =≥ 1ms
150
250
mV
Vref
Internal Voltage Reference
2.5
V
Iq
Quiescent Current
Io =5 mA
1
2
mA
∆Iq
Quiescent Current Change
Vi = 6 to 18V, Io = 5 to 150mA
0.05
mA
IAD
Adjust Input Current
40
nA
L4915
2/7



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