MD1320N データシートの表示（PDF） - Unspecified

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MD1320N

3.3V/5V Stepdown DC to DC Converter Power IC MD1320N Application Manual

Unspecified 

5 - 3 Printed circuit board patterns and design considerations(Reference)

L1

IC1 MD

C5

+Vo G +Vin C1-1 C1-2

R3

C6

R1

C2

3.3V5V

D1K

C3 C4

R2

Typical 1.5A surface mounted parts model

MD

L1

C1

IC1

CN1

C5

+Vo G +Vin

R1

3.3V5V

D1K

C3

C2

C4

R2

Typical 1.5A lead parts model

The device does not have a voltage surge protection circuit or an input fuse. The user should install an input fuse to protect the device and

equipment before using the device.

For optimum thermal efficiency, maintain the copper foil pattern as much as possible.

Connect the F/B OCL negative terminal (Pin 2) as close as possible to the output capacitor (C5).

Connect the input capacitor (C1), output capacitor (C5), choke (L1), and dropping resistor (R2) as close as possible to the power IC

device.

Separate the ground terminals (Pin 4 and Pin 26) and the P and ground terminals (Pins 16). Connect each of them as close as possible

to output capacitor (C5).

8

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