User Manual

PAM2303
Document number: DSxxxxx Rev. 1 - 2
2 of 14
www.diodes.com
November 2012
© Diodes Incorporated
PAM2303
A
Product Line o
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Diodes Incorporated
Typical Applications Circuit
⎟
⎠
⎞
⎜
⎝
⎛
+×=
2R
1R
16.0
V
O
Pin Descriptions
Pin
Name
Package Name
Function
QFN3x3-16 SOP-8EP DFN3x3-10
PGND 1, 2, 3 2 — Main power ground pin.
FB 4 3 6 Feedback voltage to internal error amplifier, the threshold voltage is 0.6V.
GND 5 4 4 Signal ground for small signal components.
NC 6, 16 — 7 Not connected.
EN 7 5 5
Enable control input. Force this pin voltage above 1.5V, enables the chip, and below
0.3V shuts down the device.
Test 8 6 — Test mode. “Low”connection is recommended.
VIN 9 7 8, 9, 10 Bias supply. Chip main power supply pin.
PVIN 10, 11, 12 8 — Input supply for power stage. Must be closely decoupled to PGND.
SW 13, 14, 15 1 1, 2, 3 The drains of the internalmain and synchronous power MOSFET.
Functional Block Diagram