SC283 SEMTECH [Semtech Corporation], SC283 Datasheet - Page 9

• Manufacturer Part Number: SC283
• Description: Dual Channel 2.5MHz, 1.8A Synchronous Step-Down Regulator
• Manufacturer: SEMTECH [Semtech Corporation]

Typical Waveforms (continued)
Circuit Conditions: C
© 2010 Semtech Corp.
1.5V/div
2V/div
2V/div
2V/div
V
1V/div
V
V
CTLx
Start Up (Power up V
V
V
OUT
OUT
IN
IN
V
R
V
R
IN
OUT
IN
OUT
=5.0V
=5.0V
Shutdown (Disable)(V
=1k
=1.5
IN
Start Up (V
= 10uF/6.3V; C
Shutdown-Disable (1.5V)
OUT
200µs/div
200µs/div
IN
OUT
=V
=3.3V), EN=VIN
= 22uF/6.3V, L= 2.2uH (TOKO: 1127AS-2R2M).
CTLx
OUT
) (V
=1.5V)
OUT
=3.3V)
9
1.5V/div
1.5V/div
2V/div
2V/div
2V/div
V
V
V
CTLx
Start Up (Power up V
V
V
OUT
OUT
IN
IN
V
R
V
R
IN
OUT
IN
OUT
=5.0V
=5.0V
Shutdown (Disable)(V
=1.83 (1.8A)
=3.3
Start Up (V
Shutdown-Disable (3.3V)
OUT
200µs/div
200µs/div
IN
=V
=3.3V), EN=VIN
CTLx
OUT
) (V
=3.3V)
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OUT
=3.3V)
SC283