TC1304-AJ1EUNTR datasheet(19/36 Pages) MICROCHIP

부품명	TC1304-AJ1EUNTR

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

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19 / 36 page

DS21949B-page 19

TC1303A/TC1303B/TC1303C/TC1304

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.

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Microchip Technology	TC1304-AG0EMF	791Kb / 38P	500 mA Synchronous Buck Regulator, 300 mA LDO with Power-Good Output 2008
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Microchip Technology	TC1303A	791Kb / 38P	500 mA Synchronous Buck Regulator, 300 mA LDO with Power-Good Output 2008
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