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E-L4973D3.3 View Datasheet(PDF) - STMicroelectronics

Part NameDescriptionManufacturer
E-L4973D3.3 3.5A step down switching regulator ST-Microelectronics
STMicroelectronics ST-Microelectronics
E-L4973D3.3 Datasheet PDF : 27 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
L4973
3
Electrical data
Electrical data
3.1
Maximum ratings
Table 2. Absolute maximum ratings
Symbol
DIP-18 S0-20
Parameter
V7,V8 V9,V8 Input voltage
V2,V3
V2,V3
Output DC voltage
Output peak voltage at t = 0.1µs f = 200KHz
I2,I3
I2,I3 Maximum output current
V9-V8 V10-V8
V9
V10 Bootstrap voltage
V11
V12 Analogs input voltage (VCC = 24V)
V17
V19 Analogs input voltage (VCC = 24V)
V12
V13 (VCC = 20V)
V18
V20 (VCC = 20V)
V10
V11 Inhibit
Ptot
TJ,TSTG
DIP 12+3+3
Power dissipation a Tpins 90°C
(TA = 70°C no copper area)
(TA = 70°C 4cm copper area on PCB)
SO-20
Power dissipation a Tpins = 90°C
Junction and storage temperature
Value
Unit
58
V
-1
V
-5
V
int. limit.
14
V
70
V
12
V
13
V
6
V
-0.3
V
5.5
V
0.3
V
VCC
V
-0.3
V
5
W
1.3
W
2
W
4
W
-40 to 150
°C
3.2
Thermal data
Table 3. Thermal data
Symbol
Parameter
RthJP
Maximum thermal resistance junction-pin
RthJA
Maximum thermal resistance junction-ambient
1. Package mounted on board
DIP-18
12
60 (1)
SO-20
15
80 (1)
Unit
°C/W
°C/W
5/27
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