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SC2542EVB

High Performance Wide Input Range Dual Synchronous Buck Controller

Semtech Corporation 

SC2542

POWER MANAGEMENT

Electrical Characteristics (Cont.)

Unless specified: TA = 25°C, VIN = 16V, FS = 200KHz.

Parameter

Test Conditions

Power Supply (Cont.)

5VSBY Regulation

0A < load current < 50mA

5VSBY Line Regulation

5VSBY Current Limit Threshold

VIN = 12V ~ 28V

Minimum 5VSBY Output Capacitance

0A < load current < 50mA

Main Switcher Output

Line Regulation

7V < VIN < 28V

Load Regulation

0A < load current < 10A, MINSET

pin float

Output Voltage Accuracy

ENABLE

Without feedback attenuation,

TA = -40º C to +85º C

EN High Threshold Voltage

EN Low Threshold Voltage

STBY

STBY High Threshold Voltage

STBY Low Threshold Voltage

Soft Start

Soft Start Charge Current

Soft Start Discharge Current

Disable Threshold Voltage for DRVL

Out of Tri-state

Pull below this level, turning ON

DRVL (Turn ON low side FET)

Error Amplifier

Voltage Feedback Reference

Input Bias Current (Source)

TA = -40º C to +85º C

Open Loop Gain (1)

Unity Gain Bandwidth (1)

Output Source/Sink Current

Slew Rate (1)

100pF capacitive loading

PWM Comparator to Output Delay (1)

Min

4.85

0.735

0.6

0.6

0.735

Typ

5

1

100

1

0.5

0.5

0.750

85

15

0.65

0.750

70

3

1

10

75

Max

5.15

0.765

2

2

0.765

2

Unit

V

%

mA

µF

%

%

V

V

V

V

V

µA

µA

V

V

µA

dB

MHz

mA

V/µS

nS

 2005 Semtech Corp.

3

www.semtech.com

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