PAM2304 Datasheet, PDF (3/14 Pages) Power Analog Micoelectronics – 3MHz, 1A Step-Down DC-DC Converter

PAM2304
3MHz, 1A Step-Down DC-DC Converter
Pin Description
TSOT23 TDFN22-8 TDFN22-6
1
8
4
2
-
6
3
5,6
1
4
3
5
5
1
3
-
2
-
-
4
-
-
7
2
Name
EN
GND
SW
VIN
FB
AGND
PGND
NC
Fu nct io n
Enable control input. Force this pin voltage above 1.5V, enables
the chip, and below 0.3V s huts down the device.
Ground
The drains of the internal main and synchronous power MOSFET.
Chip main power supply pin
Feedback voltage to internal error amplifier, the threshold voltage
is 0.6V.
Analog ground.
Main power ground return pin.
No connected
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..................................-0.3V to 6.0V
EN, FB Pin Voltage.............................-0.3V to V_IN
SW Pi n Voltage.....................-0.3V to ( V _IN+0.3V)
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
Operation Temperature Range.........-40°C to 85°C
Thermal Information
Par ameter
Symbol
Thermal Resistance
(Junction to Case)
θJC
Thermal Resistance
(Junction to Ambient)
θ_JA
Internal Power Dissipation
P_D
( TA=25°C)
Package
TSOT 23-5^Note
TDFN22-8
TDFN22-6
TSOT23-5
TDFN22-8
TDFN22-6
TSOT23-5
TDFN22-8
TDFN22-6
M aximum
130
23.4
25
250
70
68
400
1400
980
Un it
°C/W
mW
Note:
The maximun output current for TSOT23-5 package is limited by internal power dissipation capacity a s
described in Application Information hereinafter.
Power Analog Microelectronics, Inc
www.poweranalog.com
3
11/2011 Rev1.1