LXDC3EP33F-204 데이터 시트보기 (PDF) - Murata Manufacturing

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LXDC3EP33F-204

Micro DC-DC converter

Murata Manufacturing 

LXDC3EP TypeF series

Micro DC-DC converter

9. Measurement Data

Micro DC-DC Converter evaluation board (P2LX0457B)

Measurement setup

Enable SW

Mode SW

GND_S

GND

VIN_S

V

VOUT_S

Load

A

VIN

A

V

VOUT

GND

GND_S

The enable switch has three positions.

1. When it is toggled to “ON” side, the device starts operation.

2. When it is toggled to “OFF” side, the device stop operation and keep shut down status.

3. When it is set to middle of “ON” and “OFF”, the EN pin becomes floated and can be applied an external

voltage through the EN terminal pin on the EVB. If you don’t apply external voltage to EN pin, the enable

switch should not to be set to the middle position.

The mode switch has three states (PWM, PFM/PWM and Open).

1. When it is shorted to “PWM” side, the device operates PWM forced mode.

2. When it is shorted to “PFM/PWM” side, the device operates PFM/PWM automatic mode.

3. When it is set to open, the mode pin becomes floated and can be applied an external voltage through the

Mode terminal pin on the EVB. If you don’t apply external voltage to Mode pin, the mode switch should not to

be set to the middle position.

※The 47uF capacitor is for the evaluation kit only, and has been added to compensate for the long test cables.

9

February 2016

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