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SC2443EVB Datasheet(PDF) 5 Page - Semtech Corporation

Part # SC2443EVB
Description  Dual-Phase Single or Two Output Synchronous Step-Down Controller
PDF  20 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC2443EVB Datasheet(HTML) 5 Page - Semtech Corporation

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SC2443
5
Notes:
() Guaranteed by design.
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Gate Drivers
High side Gate Driver
Peak Source Current
V
BST, VBST2 = 2V
.5
A
High side Gate Driver
Peak Sink Current
V
BST, VBST2 = 2V

A
Low side Gate Driver
Peak Source Current
AVCC = PVCC = 2V
.5
A
Low side Gate Driver
Peak Sink Current
AVCC = PVCC = 2V

A
Gate Drive Rise Time
C
L = 2200pF
20
ns
Gate Drive Fall Time
C
L = 2200pF
20
ns
Low side Gate Driver to High side
Gate Driver Non-overlapping delay
C
L = 0
90
ns
High side Gate Driver to Low side
Gate Driver Non-overlapping delay
C
L = 0
90
ns
Minimum On Time
T
A = 25°C
50
ns
Soft Start, Overload Latchoff and Enable
Soft Start Charging Current
I
SS , ISS2
V
SS = VSS2 = .5V
2
µA
Overload Enabling Soft Start Voltage
V
SS and VSS2 Rising
3.2
V
Overload IN- Threshold
V
SS = 3.8V, VIN- falling
0.75V
REF
V
Overload IN2- Threshold
V
SS2 = 3.8V, VIN2- falling
0.72 X
V
Soft Start Discharge Current
I
SS _DIS , ISS2_DIS
V
SS = VSS2 = 3.8V
.4
µA
Overload Recovery Soft Start Voltage
V
SSRCV ,
V
SSRCV2
V
SS and VSS2 Falling
0.3
0.5
0.7
V
Gate Driver Disable SS/EN Voltage
0.7
0.9
V
Gate Driver Enable SS/EN Voltage
.2
.5
V
Internal 0.5V Reference Buffer
Output Voltage
V
REF
I
REF = -mA
490
500
50
mV
Load Regulation
0 < I
REF <-5mA
0.05
%/mA
Electrical Characteristics (continued)



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