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L4972AD 数据表(PDF) 2 Page - STMicroelectronics

部件名 L4972AD
功能描述  2A SWITCHINGREGULATOR
PDF  23 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L4972AD 数据表(HTML) 2 Page - STMicroelectronics

  L4972AD Datasheet HTML 1Page - STMicroelectronics L4972AD Datasheet HTML 2Page - STMicroelectronics L4972AD Datasheet HTML 3Page - STMicroelectronics L4972AD Datasheet HTML 4Page - STMicroelectronics L4972AD Datasheet HTML 5Page - STMicroelectronics L4972AD Datasheet HTML 6Page - STMicroelectronics L4972AD Datasheet HTML 7Page - STMicroelectronics L4972AD Datasheet HTML 8Page - STMicroelectronics L4972AD Datasheet HTML 9Page - STMicroelectronics Next Button
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background image
PIN CONNECTION (top view)
THERMAL DATA
Symb ol
Parameter
Po werdi p
SO- 20
Rth j-pins
Rth j-amb
Thermal Resistance Junction-Pins
max
Thermal Resistance Junction-ambient
max
12
°C/W
60
°C/W
16
°C/W
80
°C/W
ABSOLUTE MAXIMUM RATINGS
Symbo l
Parameter
Valu e
Unit
V11
Input Voltage
55
V
V11
Input Operating Voltage
50
V
V20
Output DC Voltage
Output Peak Voltage at t = 0.1
µs f = 200khz
-1
-5
V
V
I20
Maximum Output Current
Internally Limited
VI
Boostrap Voltage
Boostrap Operating Voltage
65
V11 +15
V
V
V4,V8
Input Voltage at Pins 4, 12
12
V
V3
Reset Output Voltage
50
V
I3
Reset Output Sink Current
50
mA
V2,V7,V9,V10
Input Voltage at Pin 2, 7, 9, 10
7
V
I2
Reset Delay Sink Current
30
mA
I7
Error Amplifier Output Sink Current
1
A
I8
Soft Start Sink Current
30
mA
Ptot
Total Power Dissipation at TPINS
≤ 90°C
at T amb =70°C (No copper area on PCB)
5 / 3.75(*)
1.3/1 (*)
W
W
TJ,Tstg
Junction and Storage Temperature
-40 to 150
°C
(*) SO-20
L4972A-L4972AD
2/23



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