PAM2307 Datasheet, PDF (3/13 Pages) Power Analog Micoelectronics – 3A Low Noise Step-Down DC-DC Converter

PAM2307
3A Low Noise Step-Down DC-DC Converter
Pin Configuration & Marking Information
Top View
SOP-8(EP)
87 65
P2307B
XXXYW
1234
B: Pin Configuration
Y: Year
W: Week
X: Internal Code
Pin Description
Name
SW
PGND
FB
GND
EN
TEST
VIN
PVIN
Pin Num ber
Function
1
The drains of the internal main and synchronous power MOSFET.
2
Main power ground pin
3
Feedback voltage to internal error amplifier, the threshold voltage is 0.6V.
4
Signal ground for small signal components.
Enable control input. Force this pin voltage above 1.5V, enables the chip, and
5
below 0.3V shuts down t he device.
6
Test Mode(no connect or to Ground)
7
Bias supply. Chip main power supply pin
8
Input supply for power stage. Must be closely decoupled to PGND
Absolute Maximum Ratings
These are stress ratings only and functional operation is not implied. Exposure to absolute maximum
ratings for prolonged time periods may affect device reliability. All voltages are with respect to ground.
Input Voltage PV ,_IN V ._IN .....................................6V
SW Pin Voltage......................-0.3V to (PV + _IN 0.3V)
FB Pin Voltage.........................-0.3V to (V + _IN 0.3V)
EN Pin Voltage...................................-0.3V to -6V
Maximum Junction Temperature..................150°C
Storage Temperature Range...........-65°C to 150°C
Soldering Temperature.......................300°C, 5sec
Recommended Operating Conditions
Supply Voltage..................................2.5V to 5.5V Junction Temperature Range..........-40°C to 125°C
Ambient Temperature Range...........-40°C to 85°C
Thermal Information
Parameter
Thermal Resistance (Junction to Ambient)
Thermal Resistance (Junction to Case)
Symbol
θ_JA
θ_JC
Power Analog Microelectronics, Inc
www.poweranalog.com
3
Package
QFN 3x3-16
SOP-8(EP)
QFN 3x3-16
SOP-8(EP)
Maximum
35
90
14
11
Unit
°C/W
°C/W
03/2011 Rev2.1