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SC403B Scheda tecnica(PDF) 4 Page - Semtech Corporation

Il numero della parte SC403B
Spiegazioni elettronici  6A EcoSpeed짰 Integrated FET Regulator with Programmable LDO
PDF  32 Pages
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Produttore elettronici  SEMTECH [Semtech Corporation]
Homepage  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC403B Scheda tecnica(HTML) 4 Page - Semtech Corporation

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SC403B
Electrical Characteristics (continued)
Parameter
Conditions
Min
Typ
Max
Units
Input Supplies (continued)
ENL , EN/PSV = 0V, V
DD from external source
190
300
EN/PSV = V
DD, no load, VFB > 600mV
(2)
0.7
mA
V
DD = 5V, fSW = 250kHz, EN/PSV = floating , no load
4
V
DD = 3V, fSW = 250kHz, EN/PSV = floating , no load
2.5
FB On-Time Threshold
Static V
IN and load, 0 to +85 °C
0.595
0.600
0.605
V
Static V
IN and load, -40 to +85 °C
0.594
0.606
V
Frequency Range
Continuous mode operation
1000
kHz
Minimum f
SW, EN/PSV = VDD, no load
25
Bootstrap Switch Resistance
10
Ω
Switching MOSFET Resistance
R
DSON
High Side FET
30
mΩ
Low Side FET
10
Timing
On-Time
Continuous mode operation,
V
IN = 15V, VOUT = 5V, fSW= kHz, RTON = 300kΩ
2386
2650
2915
ns
3V < V
DD < 4.5V
(3)
Minimum On-Time
80
ns
Minimum Off-Time
V
DD = 5V
250
ns
V
DD = 3V
370
Soft-Start
Soft-Start Current
3
μA
Soft-Start Voltage
When V
OUT reaches regulation
1.5
V
Analog Inputs/Outputs
VOUT Input Resistance
500
kΩ



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