DIO6905B

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DIO6905B • Rev. 1.2

- 2 -

Pin Assignments

DIO6905BSH3

DIO6905BCN8

SOT563

DFN2*2-8

Figure 1. Pin assignment (Top view)

Pin Definitions

Pin Name

Description

FB

Feedback. An external resistor divider from the output to GND tapped to FB sets the output

voltage.

GND

Power ground.

VIN

Supply voltage. The DIO6905B operates from a 2.3 V to 5.5 V unregulated input. A decoupling

capacitor is required to prevent large voltage spikes from appearing at the input.

SW

Output switching node. SW is the drain of the internal high-side P-channel MOSFET. Connect the

inductor to SW to complete the converter.

EN

On/off control.

PG

Power good indicator. Power good indicator (open drain output). Low if the output < 90% or the

output > 120% of regulation voltage; high otherwise. Connect a pull-up resistor to the input.

NC

No connection.