Pam2303, Typical applications circuit, Pin descriptions – Diodes PAM2303 User Manual
Page 2: Functional block diagram
PAM2303
Document number: DSxxxxx Rev. 1 - 2
2 of 14
www.diodes.com
November 2012
© Diodes Incorporated
PAM2303
A Product Line of
Diodes Incorporated
Typical Applications Circuit
⎟
⎠
⎞
⎜
⎝
⎛ +
×
=
2
R
1
R
1
6
.
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