SC197 View Datasheet(PDF) - Semtech Corporation

Part Name

Description

Manufacturer

SC197

3.5MHz, 500mA Synchronous Dual Step-Down DC-DC Regulator

Semtech Corporation 

SC197

Typical Characteristics (continued)

Load Transient Response — 200 to 500mA

VOUT = 1.8V

VOUT (100mV/div)

ILX (500mA/div)

ILOAD (500mA/div)

Time (20μs��/d��iv��)

VID Transient Response — PSAVE

VOUT = 1.2V to 1.8V transition, RLOAD = 120Ω

VOUT (500mV/div)

ILX (200mA/div)

VID Transient Response — 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 — 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 — PSAVE

VIN = 3.5 to 4.0V, VOUT = 1.8V, IOUT = 10mA

VOUT (100mV/div)

ILX (200mA/div)

4.0V —

VIN (500mV/div)

3.5 —

Time (40μs��/d��iv��)



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