3

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.............................-

SW Pi n Voltage......................-

0.3V to V

0.3V to

V +0.3V

Junction Temperature................................150°C

Storage Temperature Range........-65°C to 150°C

Soldering Temperature......................300°C 5sec

(

)

IN

IN

,

Recommended Operating Conditions

Supply Voltage................................2.5V to 5.5V

°C

°C

°C

°C

Operation Temperature Range.........-40

to 85

Junction Temperature Range........-40

to 125

Thermal Information

Parameter

Package

Symbol

Maximum

Unit

Thermal Resistance

(Junc tion to Case)

SOT23-5

Note

130

Thermal Resistance

(Junction to Ambient)

SOT23-5

250

°C/W

Internal Power Dissipation

SOT23-5

400

mW

,

Power Analog Microelectronics Inc

www.poweranalog.com

PAM2312

1A Step-Down DC-DC Converter

Note:

The maximun output current for SOT23-5 package is limited by internal power dissipation capacity as

described in Application Information hereinafter.

05/2010 Rev1.0