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MP9447 Datasheet(PDF) 3 Page - Monolithic Power Systems

No. de Pieza. MP9447
Descripción  High-Efficiency, Fast-Transient, 5A, 36V Synchronous, Step-Down Converter
Descarga  19 Pages
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Fabricante  MPS [Monolithic Power Systems]
Página de inicio  http://www.monolithicpower.com
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MP9447 Datasheet(HTML) 3 Page - Monolithic Power Systems

 
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MP9447–HIGH-EFFICIENCY, FAST-TRANSIENT, SYNCHRONOUS, STEP-DOWN CONVERTER
MP9447 Rev. 1.2
www.MonolithicPower.com
3
1/5/2016
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
ABSOLUTE MAXIMUM RATINGS (1)
Supply Voltage VIN ....................................... 40V
VSW........................................-0.3V to VIN + 0.3V
VBST ...................................................... VSW + 6V
All Other Pins..................................-0.3V to +6V
Continuous Power Dissipation
(TA = +25°C)
(2)
………………………………… …………….2.6W
Operating Junction Temperature ..............150°C
Lead Temperature ....................................260°C
Storage Temperature............... -65°C to +150°C
Recommended Operating Conditions
(3)
Supply Voltage VIN ...........................4.5V to 36V
Output Voltage VOUT................... 0.8V to 0.9×VIN
Operating Junction Temp. (TJ). -40°C to +125°C
Thermal Resistance
(4)
θJA
θJC
QFN-20 (3mm×4mm)..............48 ...... 10 ... °C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ(MAX), the junction-to-
ambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD(MAX)=(TJ(MAX)-
TA)/θJA. Exceeding the maximum allowable power dissipation
will cause excessive die temperature, and the regulator will go
into thermal shutdown. Internal thermal shutdown circuitry
protects the device from permanent damage.
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.


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