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L4973D3.3 датащи(PDF) 8 Page - STMicroelectronics

номер детали L4973D3.3
подробное описание детали  3.5A step down switching regulator
PDF  27 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4973D3.3 датащи(HTML) 8 Page - STMicroelectronics

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Electrical characteristics
L4973
8/27
Ramp peak
VCC = 8V
VCC = 55V
1.9
9
2.1
9.6
2.3
10.2
V
V
Maximum Duty Cycle
95
97
%
Maximum Frequency
Duty Cycle = 0%;
ROSC =13KΩ; COSC = 820pF;
300
KHz
Sync function
High Input Voltage
VCC = 8V to 55V
3.5
V
Low Input Voltage
VCC = 8V to 55V
0.9
V
Slave Sink Current
0.15
0.25
0.45
mA
Master Output
Amplitude
Isource = 3mA
4
4.5
V
Output Pulse Width
no load, Vsync = 4.5V
0.20
0.35
µs
1.
Pulse testing with a low duty cycle
2.
Specifications referred to TJ from -40°C to 125°C.
Table 4. Electrical characteristics (continued)
(Refer to the test circuit,VCC = 24V; TJ = 25°C, COSC = 2.7nF; ROSC = 20KΩ;
unless otherwise specified)
Symbol
Parameter
Test condition
Min
Typ
Max
Unit



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