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MP1471 Datasheet(PDF) 3 Page - Monolithic Power Systems

No. de pieza MP1471
Descripción Electrónicos  High-Efficiency, 3A Peak, 16V, 500kHz Synchronous, Step-Down Converter In a 6-Pin TSOT 23
PDF  17 Pages
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Fabricante Electrónico  MPS [Monolithic Power Systems]
Página de inicio  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MP1471 Datasheet(HTML) 3 Page - Monolithic Power Systems

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MP1471 – SYNCHRONOUS, STEP-DOWN CONVERTER WITH INTERNAL MOSFETS
MP1471 Rev. 1.01
www.MonolithicPower.com
3
8/27/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
ELECTRICAL CHARACTERISTICS (5)
VIN = 12V, TA = 25°C, unless otherwise noted.
Parameter
Symbol
Condition
Min
Typ
Max
Units
Supply Current (Shutdown)
IIN
VEN = 0V
1
μA
Supply Current (Quiescent)
Iq
VEN = 2V, VFB = 1V
0.83
mA
HS Switch-On Resistance
HSRDS-ON VBST-SW=5V
150
mΩ
LS Switch-On Resistance
LSRDS-ON Vcc=5V
70
mΩ
Switch Leakage
SWLKG
VEN = 0V, VSW =12V
1
μA
Current Limit
(5)
ILIMIT
3.5
4.2
A
Oscillator Frequency
fSW
VFB=0.75V
400
490
580
kHz
Maximum Duty Cycle
DMAX
VFB=700mV
88
92
%
Minimum On Time
(5)
τON_MIN
90
ns
Feedback Voltage
VFB
776
800
824
mV
EN Rising Threshold
VEN_RISING
1.4
1.5
1.6
V
EN Falling Threshold
VEN_FALLING
1.23
1.32
1.41
V
VEN=2V
1.6
μA
EN Input Current
IEN
VEN=0
0
μA
VIN Under-Voltage Lockout
Threshold, Rising
INUVVth
3.85
4.2
4.55
V
VIN Under-Voltage Lockout
Threshold Hysteresis
INUVHYS
340
mV
Soft-Start Period
τSS
1
ms
Thermal Shutdown
(5)
150
°C
Thermal Hysteresis
(5)
20
°C
Notes:
5) Guaranteed by design.



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