SC403 Ver la hoja de datos (PDF) - Semtech Corporation
Número de pieza
componentes Descripción
Fabricante
SC403 Datasheet PDF : 32 Pages
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SC403
Electrical Characteristics (continued)
Parameter
Conditions
Min Typ Max Units
Input Supplies (continued)
ENL , EN/PSV = 0V
3
7
μA
VDD Supply Current
FB On-Time Threshold
Frequency Range
Bootstrap Switch Resistance
EN/PSV = VDD, no load (fSW = 25kHz), VFB > 750mV
2
EN/PSV = VDD, no load (fSW = 25kHz), VFB > 750mV
1
mA
VDD = 5V, fSW = 250kHz, EN/PSV = floating , no load
4
VDD = 3V, fSW = 250kHz, EN/PSV = floating , no load
2.5
Static VIN and load, 0 to +85 °C
0.744 0.750 0.756
V
Static VIN and load, -40 to +85 °C
0.742
0.758
V
Continuous mode operation
Minimum fSW, EN/PSV = VDD, no load
1000
kHz
25
10
Ω
Switching MOSFET Resistance
RDSON
High Side FET
Low Side FET
30
mΩ
10
Timing
On-Time
Continuous mode operation,
VIN = 15V, VOUT = 5V, fSW= kHz, RTON = 300kΩ
3V < VDD < 4.5V(2)
2386 2650 2915
ns
Minimum On-Time
80
ns
Minimum Off-Time
Soft-Start
VDD = 5V
VDD = 3V
250
ns
370
Soft-Start Current
2.75
μA
Soft-Start Voltage
Analog Inputs/Outputs
When VOUT reaches regulation
1.5
V
VOUT Input Resistance
500
kΩ
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