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| SC187 Datasheet, PDF (10/17 Pages) Semtech Corporation – 4A, 2.2MHz Synchronous Step-Down Regulator with 15 Preset Output Voltages | |||
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SC187
Typical Characteristics (continued)
Circuit Conditions: CIN = 22µF/6.3V, COUT = 2 x 22µF/6.3V, CSS = 10nF. Unless otherwise noted, L = 1.0µH (TOKO: FDV0530S-1R0).
Start Up into Output Short Circuit
VIN = 5V
VID Transition â Full Load
VIN = 5V; VOUT = 1.5V to 1.8V to 1.5V
LX (5V/div)
VOUT (500mV/div)
VSS (1V/div)
ILX (2A/div)
Time (500ns�/�d��i�v�)
Output Short Circuit
VIN = 5V; VOUT = 1.5V
Mode= Hi
Ch1
VLX
Ch3
VOUT
Ch4
PGood
Ch2
ILX
VOUT (200mV/div)
IOUT (2A/div)
Time (100ms�/�d��i�v�)
Recovery from Short Circuit
VIN = 5V; VOUT = 1.5V
Mode= Hi
Ch1
VLX
Ch3
VOUT
Ch4
VIN
Ch2
ILX
Output Short Circuit
VIN = 5V; VOUT = 3.3V
Mode= Hi
Ch1
VLX
Ch3
VOUT
Ch4
PGood
Ch2
ILX
Recovery from Short Circuit
VIN = 5V; VOUT = 3.3V
Mode= Hi
Ch1
VLX
Ch3
VOUT
Ch4
VIN
Ch2
ILX
10
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