User guide

PAM2309
Document number: DSxxxxx Rev. 2 - 1
2 of 17
www.diodes.com
January 2013
© Diodes Incorporated
PAM2309
A
Product Line o
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Diodes Incorporated
Typical Applications Circuit
V
2R
1R
15.0O
⎟
⎟
⎠
⎞
⎜
⎜
⎝
⎛
+×=
Pin Descriptions
Pin
Name
Function
VIN Chip main power supply pin.
GND Ground
EN
Enable control input. Force this pin voltage above 1.5V, enables the chip, and below
0.3V shuts down the device.
VOUT/FB
VOUT: Output voltage feedback pin, an internal resistive divider divides the output
voltage down for comparison to the internal reference voltage.
FB: Feedback voltage to internal error amplifier, the threshold voltage is 0.5V.
SW The drains of the internal main and synchronous power MOSFET.
NC Not connected
Functional Block Diagram