SC338 SEMTECH [Semtech Corporation], SC338 Datasheet - Page 13

• Manufacturer Part Number: SC338
• Description: Ultra Low Output Voltage Dual Linear FET Controller
• Manufacturer: SEMTECH [Semtech Corporation]

POWER MANAGEMENT
Typical Characteristics (Cont.)
V
I
C
Trace 1: V
Trace 2: V
Trace 3: 1.2V in, 50mV/div., offset 1V
Trace 4: load FET drain
Timebase: 20µs/div.
Load rise/fall times
2004 Semtech Corp.
OUT
IN
OUT
100
0.1
10
= 5V, 1.2V in to 1.05V out
Load Transient Response, No Passive Droop
= 0.01A to 2.51A to 0.01A
1
= 2 x 100µF, 25m
0.1
Output Rise Time At Startup vs. Soft Start
V
T
V
C
I
MOSFET = IRF7311
OUT
J
EN
OUT
OUT
= 25°C
= 5V
= 0A
OUT
DRV
= 1.05V
= 100µF, 25m
Capacitance vs. Input Voltage
, 20mV/div., offset 1V
, 2V/div.
1
35A
V
IN
= 5V
/µs
C
DRV
V
IN
= 12V
(nF)
10
100
13
V
I
C
R
Trace 1: V
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
OUT
IN
OUT
DROOP
Load Transient Response, With Passive Droop
= 5V, 1.2V in to 1.05V out
= 0.01A to 2.51A to 0.01A
= 1 x 100µF, 25m
= 20m
OUT
, 20mV/div., offset 1V
35A
/µs
SC338(A)
www.semtech.com