TC1303B-1G0EUN datasheet(20/38 Pages) MICROCHIP

Nome de Peças	TC1303B-1G0EUN

Descrição Electrónicos	500 mA Synchronous Buck Regulator, 300 mA LDO with Power-Good Output

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Fabricante Electrônico	MICROCHIP [Microchip Technology]

Página de início	http://www.microchip.com

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20 / 38 page

TC1303A/TC1303B/TC1303C/TC1304

DS21949C-page 20

3.8

Buck Regulator Shutdown Input

Pin (SHDN1)

SHDN1 is a logic-level input used to turn the buck

regulator on and off. A logic-high (> 45% of VIN), will

enable the regulator output. A logic-low (< 15% of VIN)

will ensure that the output is turned off.

3.9

Buck Regulator Input Voltage Pin

(VIN1)

VIN1 is the buck regulator power input supply pin.

Connect a variable input voltage source to VIN1.

Connect VIN1 and VIN2 together with board traces as

short as possible.

3.10

Buck Inductor Output Pin (LX)

Connect LX directly to the buck inductor. This pin

carries large signal-level current; all connections

should be made as short as possible.

3.11

Power Ground Pin (PGND)

Connect all large-signal level ground returns to PGND.

These large-signal, level ground traces should have a

small loop area and length to prevent coupling of

switching noise to sensitive traces. Please see the

physical layout information supplied in Section 5.0

“Application

Circuits/Issues”

for

grounding

recommendations.

3.12

Exposed Pad (EP)

For the DFN package, connect the EP to AGND, with

vias into the AGND plane.

Nº de peça semelhante - TC1303B-1G0EUN

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Microchip Technology	TC1303B-AA0EMF	601Kb / 30P	500 mA Synchronous Buck Regulator, 300 mA LDO with Power-Good Output 2005
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Descrição semelhante - TC1303B-1G0EUN

Fabricante Electrônico	Nome de Peças	Folha de dados	Descrição Electrónicos
Microchip Technology	MCP1601	683Kb / 22P	500 mA Synchronous BUCK Regulator 2003
	TC1303B	601Kb / 30P	500 mA Synchronous Buck Regulator, 300 mA LDO with Power-Good Output 2005
	TC1303A	635Kb / 36P	500 mA Synchronous Buck Regulator, 300 mA LDO with Power-Good Output 2005
	TC1313	542Kb / 28P	500 mA Synchronous Buck Regulator, 300 mA LDO 2005
	TC1313	621Kb / 32P	500 mA Synchronous Buck Regulator, 300 mA LDO 2009
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Microchip Technology	MCP1601	511Kb / 24P	500 mA Synchronous BUCK Regulator 11/29/12
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