2

© 2006 Semtech Corp.

www.semtech.com

SC339

PRELIMINARY

POWER MANAGEMENT

Absolute Maximum Ratings

Parameter

Symbol

Maximum

Units

Input Supply Voltage

V

IN

-0.3 to +6

V

Drive Pin

V

DRV

-0.3 to V

V

Adjust and Power Good Pin

V

-0.3 to V

V

Enable Pin

V

EN

-0.3 to V

V

Thermal Impedance Junction to Ambient

θ

JA

190

°C/W

Thermal Impedance Junction to Case

θ

JC

81

°C/W

Operating Ambient Temperature Range

T

A

-40 to +85

°C

Operating Junction Temperature Range

T

J

-40 to +125

°C

Storage Temperature Range

T

STG

-65 to +150

°C

Lead Temperature (Soldering) 10 Sec.

T

LEAD

300

°C

ESD Rating (Human Body Model)

V

ESD

2kV

Electrical Characteristics

Unless specified: T

(1)

= 1.5V ± 5%, 0A

≤ I

Values in bold apply over full operating ambient temperature range.

Exceeding the specifications below may result in permanent damage to the device or device malfunction. Operation outside of the parameters specified in the

Electrical Characteristics section is not implied. Exposure to absolute maximum rated conditions for extended periods of time may affect device reliability.

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Supply Voltage

V

IN

4.5

5

5.5

V

Quiescent Current

I

Q

V

130

200

μA

Standby Current

I

Q(OFF)

EN low

0.1

1.0

μA

Input Under-Voltage Lockout

Start Threshold

V

UVLO

V

4.20

V

Hysteresis

V

HYST

V

0.10

V

EN

Enable Input Threshold

V

IH

Output on

2.8

V

V

IL

Output off

1.8

Enable Input Bias Current

V

-1

+1

μA