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 2007 Semtech Corp.

www.semtech.com

SC2603A

POWER MANAGEMENT

Absolute Maximum Rating

Electrical Characteristics

Note:

(1) Mounting pad has to be larger than one square inch on two sided printed circuit board with minimum 1 ounce copper

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

Maximum

Units

Input Voltage

V

-0.3 to 20

V

GATE Pin Voltage

V

GATE

-0.3 to 20

V

EN/SS Pin Voltage

V

EN/SS

-0.3 to 7

V

FB Pin Voltage

V

FB

-0.3 to 7

V

θ

JA

165

°C/W

Thermal Resistance Junction to Case

θ

JC

102

°C/W

Maximum Junction Temperature

T

J

150

°C

Storage Temperature Range

T

STG

-45 to +150

°C

Lead Temperature (Soldering)10 sec

T

LEAD

300

°C

ESD Rating (Human Body Model)

ESD

2

kV

Unless specified: V

Parameter

Symbols

Conditions

Min

Typ

Max

Units

General

V

V

IN

4.5

16

V

V

V

UVLO

V

4.2

4.5

V

V

V

HYS

400

mV

V

Current into V

6.0

9.0

mA

V

EN/SS=Low

5.0

6.0

mA

Error Amplifier

Reference Voltage

V

FB

1.225

1.250

1.275

V

Feedback Bias Current

I

FB

V

2.0

8.0

µ

A

105

V/V

Oscillator

Oscillator Frequency

T

190

200

210

kHz

Oscillator Frequency Shift

V

50

kHz

Maximum Duty Cycle

90

95

%

Internal Ramp Peak

V

R_PEAK

1.4

V

Internal Ramp Valley

V

R_VALLEY

0.4

V