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| SC197 Datasheet, PDF (9/20 Pages) Semtech Corporation – 3.5MHz, 500mA Synchronous Dual Step-Down DC-DC Regulator | |||
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SC197
Typical Characteristics (continued)
Load Transient Response â 200 to 500mA
VOUT = 1.8V
VOUT (100mV/div)
ILX (500mA/div)
ILOAD (500mA/div)
Time (20μs��/d��iv��)
VID Transient Response â PSAVE
VOUT = 1.2V to 1.8V transition, RLOAD = 120Ω
VOUT (500mV/div)
ILX (200mA/div)
VID Transient Response â PWM
VOUT = 1.2V to 1.8V transition, IOUT = 500mA
VOUT (500mV/div)
ILX (200mA/div)
VCTL2 (5.0V/div)
Time (20μs��/d��iv��)
Shutdown Transient Response
VOUT = 1.8V, IOUT = 500mA
VOUT (1V/div)
ILX (200mA/div)
VCTL2-0 (5.0V/div)
Time (100μs��/d��iv��)
Line Transient Response â PWM
VIN = 3.5 to 4.0V, VOUT = 1.8V, IOUT = 400mA
VOUT (100mV/div)
ILX (200mA/div)
VIN 500mV/div)
Time (40μs��/d��iv��)
VCTL3-0 (5V/div)
Time (20μs��/d��iv��)
Line Transient Response â PSAVE
VIN = 3.5 to 4.0V, VOUT = 1.8V, IOUT = 10mA
VOUT (100mV/div)
ILX (200mA/div)
4.0V â
VIN (500mV/div)
3.5 â
Time (40μs��/d��iv��)
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