Pam2305, Typical applications circuit, Pin descriptions – Diodes PAM2305 User Manual
Page 2: Functional block diagram
PAM2305
Document number: DSxxxxx Rev. 2 - 6
2 of 17
January 2013
© Diodes Incorporated
PAM2305
A Product Line of
Diodes Incorporated
Typical Applications Circuit
Fixed Output Voltage
Adjustable Output Voltage
⎟
⎠
⎞
⎜
⎝
⎛ +
×
=
2
R
1
R
1
6
.
0
V
O
Pin Descriptions
Pin
Name
Package Name
Function
TSOT25 DFN2x2-6L QFN3x3-16L
VIN
1
3
9, 10, 11, 12
Chip main power supply pin.
GND
2
5
1, 2, 3, 5
Ground.
EN 3
2
7
Enable Control Input. Force this pin voltage above 1.5V, enables the chip, and
below 0.3V shuts down the device.
VOUT/FB 4
6
4
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 0.6V.
SW
5
4
13, 14, 15
The drains of the internal main and synchronous power MOSFET.
NC
—
1
6, 8, 16
No connection.
Functional Block Diagram