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E-L4960 Folha de dados(PDF) 3 Page - STMicroelectronics

Nome de Peças E-L4960
Descrição Electrónicos  2.5A POWER SWITCHING REGULATOR
Download  16 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

E-L4960 Folha de dados(HTML) 3 Page - STMicroelectronics

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Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
DYNAMIC CHARACTERISTICS
Vo
Output voltage range
Vi = 46V
Io = 1A
Vref
40
V
Vi
Input voltage range
Vo = Vref to 36V
Io = 2.5A
9
46
V
∆ Vo
Line regulation
Vi = 10V to 40V
Vo = Vref
Io = 1A
15
50
mV
∆ Vo
Load regulation
Vo = Vref
Io = 0.5A to 2A
10
30
mV
Vref
Internal reference voltage
(pin 2)
Vi = 9V to 46V
Io = 1A
5
5.1
5.2
V
∆ Vref
∆ T
Average temperature
coefficient of refer voltage
Tj = 0
°C to 125°C
Io = 1A
0.4
mV/
°C
Vd
Dropout voltage
Io = 2A
1.4
3
V
Iom
Maximum operating load
current
Vi = 9V to 46V
Vo = Vref to 36V
2.5
A
I7L
Current limiting threshold
(pin 7)
Vi = 9V to 46V
Vo = Vref to 36V
3
4.5
A
ISH
Input average current
Vi = 46V;
output short-circuit
30
60
mA
η
Efficiency
f = 100KHz
Vo = Vref
75
%
Io = 2A
Vo = 12V
85
%
SVR
Supply voltage ripple
rejection
∆ Vi = 2Vrms
fripple = 100Hz
Vo = Vref
Io = 1A
50
56
dB
f
Switching frequency
85
100
115
KHz
∆ f
∆ Vi
Voltage stability of
switching frequency
Vi = 9V to 46V
0.5
%
∆ f
∆ Tj
Temperature stability of
switching frequency
Tj = 0
°C to 125°C
1
%
fmax
Maximum operating
switching frequency
Vo = Vref
Io = 2A
120
150
KHz
Tsd
Thermal shutdown
junction temperature
150
°C
ELECTRICAL CHARACTERISTICS (Refer to the test circuit, Tj = 25
°C, Vi = 35V, unless otherwise
specified)
Symbol
Parameter
Value
Unit
Rth j-case
Thermal resistance junction-case
max
4
°C/W
Rth j-amb
Thermal resistance junction-ambient
max
50
°C/W
THERMAL DATA
3/16
L4960


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