2016/02/24

A.2

2

EM5845

Pin Assignment

Pin Name Pin No.

Pin Function

SW

1,2,3 Switching node output. Connect to external inductor.

PGOOD

4

Power Good Indicator. Requires external pull-up resistor.

EN

5

Enable. Pulling this pin lower than 0.4V disables the converter.

FB

6

Feedback Voltage. A resistor divider from the output to GND is used to set the

regulation voltage.

NC

7

VCC

8

Supply Voltage. This pin provides the bias supply for the EM5845. Ensure that a

decoupling capacitor is placed near the IC.

VIN

9,10

Main Power Conversion Input & Gate driver voltage supply.

GND

PAD

11

Ground. The GND pad must be soldered to a large PCB and connected to GND for

maximum power dissipation and better noise immunity.

Function Block Diagram