PAM2319 Datasheet, PDF (3/13 Pages) Power Analog Micoelectronics – Dual High-Efficiency PWM Step-Down DC-DC Coverter

PAM2319
Dual High-Efficiency PWM Step-Down DC-DC Coverter
Pin Configuration and Marking Information
TOP VIEW
WDFN-12L 3x3
FB2 1
VIN2 2
3
VIN1 4
PGND1 5
SW1 6
12 SW2
11
10 E N2
9 EN1
8
7 FB1
GND
(Exposed Pad)
BN: Product Code of PAM2319
v₁: Output Voltage 1
v₂: Output Voltage 2
(refer to “Ordering
Information”)
X: Internal Code
Y: Year
W: Week
Pin Description
QFN3x3
1
2
3
4
5
6
7
8
9
10
11
12
N ame
FB2
VIN 2
AGN D2
VIN 1
PGN D1
SW1
FB1
AGN D1
EN1
EN2
PGN D2
SW2
Exposed
PAD
Function
Channel 2 feedback pin internally set to 0.6V.
Input voltage pin of channel 2.
Signal ground of channel 2 for small signal components.
Input voltage pin of channel 1.
Main power ground pin of channel 1
Channel 1 switching pin. The drains of the internal main and s ynchronous power
MOSF ET.
Channel 1 feedback pin internally set to 0.6V.
Signal ground of channel 1 for small signal components.
Enable control input. Pull logic high to enable Vo1. Pull logic low to disable.
Enable control input. Pull logic high to enable Vo2. Pull logic low to disable.
Main power ground pin of channel 2
Channel 2 switching pin. The drains of the internal main and s ynchronous power
MOSF ET.
Connect to GND
Power Analog Microelectronics, Inc
www.poweranalog.com
3
12/2011 Rev1.1