Dual High-Efficiency PWM Step-Down DC-DC Coverter
PAM2306
Pin Configuration and Marking Information
TOP VIEW
WDFN-12L 3x3
VIN2
LX2
GND
1
2
3
2306v
1
v
2
XXXYW
12
11
10
9
8
7
GND
EN2
NC2
FB2
GND
LX1
VIN1
FB1 4
NC1 5
EN1 6
v
1
: Output Voltage 1
v
2
: Output Voltage 2
(refer to “Ordering
Information”)
X: Internal Code
Y: Year
W: Week
(Exposed Pad)
Pin No.
1
2
3,9,
Exposed Pad
4
5,11
6
7
8
10
12
Pin Name
VIN2
LX2
GND
FB1
NC1,NC2
EN1
VIN1
LX1
FB2
EN2
Power Input of Channel 2.
Pin for Switching of Channel 2.
Pin Function
Ground.The exposed pad must be soldered to a large PCB and connected to
GND for maximum power dissipation.
Feedback of Channel 1.
No Connection
Chip Enable of Channel 1
(Active
High).V
EN1
≤V
IN1.
Power I put of Channel 1.
n
Pin for Switching of Channel 1.
Feedback of Channel 2.
Chip Enable of Channel 2
(Active
High). V
EN2
≤V
IN2.
Power Analog Microelectronics
,
Inc
www.poweranalog.com
3
07/2008 Rev 1.0
PAM [ POWER ANALOG MICOELECTRONICS ]
