MCP16311SLASH2 datasheet(22/40 Pages) MICROCHIP

Part #	MCP16311/2

Description	30V Input, 1A Output, High-Efficiency, Integrated Synchronous Switch Step-Down Regulator

PDF	40 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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22 / 40 page

MCP16311/2

DS20005255C-page 22

 2013-2019 Microchip Technology Inc.

The difference between the first term, input power, and

the second term, power delivered, is the total system

power dissipation. The inductor losses are estimated

by PL =IOUT2 xLDCR.

EXAMPLE 5-6:

POWER DISSIPATION –

MCP16311/2 MSOP

PACKAGE

EXAMPLE 5-7:

POWER DISSIPATION –

MCP16311/2 DFN

PACKAGE

VIN =12V

VOUT =5.0V

IOUT =0.8A

Efficiency = 92.5%

Total System Dissipation = 324 mW

LDCR =0.15 

PL =96 mW

MCP16311/2 internal power dissipation estimate:

PDIS –PL =228 mW

JA =211°C/W

Estimated Junction

Temperature Rise

= +48.1°C

VIN =12V

VOUT =3.3V

IOUT =0.8A

Efficiency = 90%

Total System Dissipation = 293 mW

LDCR =0.15 

PL =96 mW

MCP16311 internal power dissipation estimate:

PDIS –PL =197 mW

JA =68°C/W

Estimated Junction

Temperature Rise

= +13.4°C

MCP16311/2 Datasheet(PDF) 22 Page - Microchip Technology

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