SC2443MLTRT(2007) View Datasheet(PDF) - Semtech Corporation

Part Name

Description

MFG CO.

SC2443MLTRT
(Rev.:2007)

Dual-Phase Single or Two Output Synchronous Step-Down Controller

Semtech Corporation 

SC2443

Electrical Characteristics (continued)

Parameter

Symbol

Gate Drivers

High side Gate Driver

Peak Source Current

High side Gate Driver

Peak Sink Current

Low side Gate Driver

Peak Source Current

Low side Gate Driver

Peak Sink Current

Gate Drive Rise Time

Gate Drive Fall Time

Low side Gate Driver to High side

Gate Driver Non-overlapping delay

High side Gate Driver to Low side

Gate Driver Non-overlapping delay

Minimum On Time

Soft Start, Overload Latchoff and Enable

Soft Start Charging Current

Overload Enabling Soft Start Voltage

Overload IN1- Threshold

Overload IN2- Threshold

Soft Start Discharge Current

Overload Recovery Soft Start Voltage

Gate Driver Disable SS/EN Voltage

Gate Driver Enable SS/EN Voltage

ISS1 , ISS2

I , I SS1 _DIS SS2_DIS

VSSRCV1 ,

VSSRCV2

Internal 0.5V Reference Buffer

Output Voltage

VREF

Load Regulation

Notes:

(1) Guaranteed by design.

Conditions

VBST1, VBST2 = 12V

VBST1, VBST2 = 12V

AVCC = PVCC = 12V

AVCC = PVCC = 12V

CL = 2200pF

CL = 2200pF

CL = 0

CL = 0

TA = 25°C

VSS1 = VSS2 = 1.5V

VSS1 and VSS2 Rising

VSS1 = 3.8V, VIN1- falling

VSS2 = 3.8V, VIN2- falling

VSS1 = VSS2 = 3.8V

VSS1 and VSS2 Falling

IREF = -1mA

0 < IREF <-5mA

Min

Typ

Max Units

1.5

A

1

A

1.5

A

1

A

20

ns

20

ns

90

ns

90

ns

150

ns

2

µA

3.2

V

0.75VREF

V

0.72 X

V

1.4

µA

0.3

0.5

0.7

V

0.7

0.9

V

1.2

1.5

V

490

500

510

mV

0.05

%/mA



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