AP7344

Document number: DS37368 Rev. 1 - 2

10 of 15

www.diodes.com

January 2015

© Diodes Incorporated

AP7344

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Application Information

Output Capacitor

capacitors. The ESR (Equivalent Series Resistance) and capacitance drives the selection. If the application has large load variations, it is

recommended to utilize low-ESR bulk capacitors. It is recommended to place ceramic capacitors as close as possible to the load and the GND pins

and care should be taken to reduce the impedance in the layout.

Input Capacitor

Enable Control

pins to keep the regulator output on at all time. To ensure proper operation, the signal source used to drive the EN pins must be able to swing

above and below the specified turn-on/off voltage thresholds listed in the Electrical Characteristics section.

Short Circuit Protection

protects the regulator from over-current and damage due to overheating.

Layout Considerations

For good ground loop and stability, the input and output capacitors should be located close to the input, output, and GND pins of the device. The

regulator GND pins should be connected to the external circuit ground to reduce voltage drop caused by trace impedance. Ground plane is

Time t (µs)

Output Voltage

EN Input Voltage

0

40

80

120

160

200

0

2

2

4

0

4

Time t (µs)

Output Voltage

EN Input Voltage

0

40

80

120

160

200

0

1

3

2

1

2

0