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MP2494DN датащи(PDF) 3 Page - Monolithic Power Systems

номер детали MP2494DN
подробное описание детали  2A, 55V, 100kHz Step-Down Converter
PDF  11 Pages
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производитель  MPS [Monolithic Power Systems]
домашняя страница  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP2494DN датащи(HTML) 3 Page - Monolithic Power Systems

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MP2494 –2A, 55V, 100kHz STEP-DOWN CONVERTER
MP2494 Rev. 1.0
www.MonolithicPower.com
3
4/25/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS (5)
VIN = 12V, TA = +25°C, unless otherwise noted.
Parameters
Symbol
Condition
Min
Typ
Max
Units
Feedback Voltage
VFB
4.5V
≤ VIN ≤ 55V
0.78
0.8
0.82
V
Feedback Bias Current
IBIAS(FB)
VFB = 0.8V
10
nA
Switch On Resistance
RDS(ON)
0.25
Ω
Switch Leakage
VEN = 0V, VSW = 0V
0.1
10
μA
Current Limit
(5)
3.5
A
Oscillator Frequency
fSW
VFB = 0.6V
80
100
120
kHz
Boot-Strap Voltage
VBST - VSW
4.3
V
Minimum On Time
(5)
tON
VFB = 1V
100
ns
SW rising edge
trise
VIN =12V, VOUT =5V, IOUT =2A
50
ns
SW falling edge
tfall
VIN =12V, VOUT =5V, IOUT =2A
50
ns
EN Input Low Voltage
0.4
V
EN Input High Voltage
1.8
V
EN Input Bias Current
VEN=0-6V
-10
-2
10
μA
Under Voltage Lockout
Threshold Rising
3.0
3.3
3.6
V
Under Voltage Lockout
Threshold Hysteresis
200
mV
Supply Current (Shutdown)
VEN=0V
4
10
μA
Supply Current (Quiescent)
VEN = 2V, VFB = 1V
500
800
μA
Thermal Shutdown
(5)
150
°C
Notes:
5) Guaranteed by design



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