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© 2005 Semtech Corp.

www.semtech.com

POWER MANAGEMENT

SC4501

Absolute Maximum Rating

Electrical Characteristics

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.

Parameter

Test Conditions

Min

Typ

Max

Unit

Undervoltage Lockout Threshold

1.3

1.4

V

Maximum Operating Voltage

16

V

Feedback Voltage

T

1.224

1.242

1.260

V

-40°C < T

1.217

1.267

V

Feedback Voltage Line

Regulation

1.5V < V

0.01

%

FB Pin Bias Current

40

80

nA

Error Amplifier Transconductance

60

Error Amplifier Open-Loop Gain

49

dB

COMP Source Current

V

5

µA

COMP Sink Current

V

5

µA

V

V

1.1

1.6

mA

V

V

10

18

µA

Switching Frequency

1.3

1.5

1.7

MHz

Maximum Duty Cycle

85

90

%

Minimum Duty Cycle

0

%

Switch Current Limit

2

2.8

A

Switch Saturation Voltage

I

220

350

mV

Unless specified: V

Parameter

Symbol

Typ

Units

Supply Voltage

V

IN

-0.3 to 18

V

SW Voltage

V

SW

-0.3 to 32

V

FB Voltages

V

FB

-0.3 to 2.5

V

SHDN Voltage

V

SHDN

-0.3 to V

V

Operating Temperature Range

T

A

-40 to +85

°C

Thermal Resistance Junction to Ambient (MSOP-8)

θ

JA

40

°C/W

Thermal Resistance Junction to Ambient (MLPD-10)

θ

JA

40

Maximum Junction Temperature

T

J

160

°C

Storage Temperature Range

T

STG

-65 to +150

°C

Lead Temperature (Soldering)10 sec

T

LEAD

260

°C

ESD Rating (Human Body Model)

ESD

2000

V