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SC338IMSTRT Datasheet(PDF) 13 Page - Semtech Corporation

Part # SC338IMSTRT
Description  Ultra Low Output Voltage Dual Linear FET Controller
PDF  14 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC338IMSTRT Datasheet(HTML) 13 Page - Semtech Corporation

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 2004 Semtech Corp.
www.semtech.com
SC338(A)
POWER MANAGEMENT
Output Rise Time At Startup vs. Soft Start
Capacitance vs. Input Voltage
Typical Characteristics (Cont.)
0.1
1
10
100
0.1
1
10
100
CDRV (nF)
VEN = 5V
TJ = 25°C
VOUT = 1.05V
COUT = 100µF, 25mΩ
IOUT = 0A
MOSFET = IRF7311
VIN = 5V
VIN = 12V
V
IN = 5V, 1.2V in to 1.05V out
I
OUT = 0.01A to 2.51A to 0.01A
C
OUT = 2 x 100µF, 25mΩ
Trace 1: V
OUT, 20mV/div., offset 1V
Trace 2: V
DRV, 2V/div.
Trace 3: 1.2V in, 50mV/div., offset 1V
Trace 4: load FET drain
Timebase: 20µs/div.
Load rise/fall times
≥ 35A/µs
Load Transient Response, No Passive Droop
V
IN = 5V, 1.2V in to 1.05V out
I
OUT = 0.01A to 2.51A to 0.01A
C
OUT = 1 x 100µF, 25mΩ
R
DROOP = 20mΩ
Trace 1: V
OUT, 20mV/div., offset 1V
Trace 2: not connected
Trace 3: 1.2V in, 50mV/div., offset 1V
Trace 4: load FET drain
Timebase: 20µs/div.
Load rise/fall times
≥ 35A/µs
Load Transient Response, With Passive Droop



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