SC21152 datasheet(9/18 Pages) SEMTECH

Teilenummer	SC21152

Bauteilbeschribung	Tiny 1.2A Synchronous Buck Regulator with Power Good

PDF	18 Pages

Scroll/Zoom	100%

Hersteller	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

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9 / 18 page

SC21152

Typical Characteristics (continued)

Load Transient - Power Save PFM to PWM

Time (100μs/div)

VIN = 5V, VOUT = 1.0V, Load 0A to 1.2A to 0A

VOUT (50mV/div)

LX (5V/div)

Load Transient - Power Save PFM to PWM

Time (100µs/div)

VIN = 5V, VOUT = 3.3V, Load 0A to 1.2A to 0A

VOUT (0.1V/div)

LX (5V/div)

Load Transient - PWM to PWM

Time (100μs/div)

VIN = 5V, VOUT = 1.0V, Load 0.5A to 1.2A to 0.5A

VOUT (50mV/div)

LX (5V/div)

Load Transient - PWM to PWM

Time (100µs/div)

LOAD (1A/div)

LX (5V/div)

VIN = 5V, VOUT = 3.3V, Load 0.5A to 1.2A to 0.5A

PWM Minimum Off Operation

Time (2µs/div)

VOUT (50mV/div)

LX (5V/div)

VIN = 3.6V, VOUT = 3.3V, 500mA Load

Overcurrent Shutdown and Recovery

Time (2ms/div)

VOUT (1V/div)

LX (5V/div)

VIN = 5V, VOUT = 1.0V, Load 0A to 2.0A to 0A

LOAD (1A/div)

VOUT (0.1V/div)

LOAD (1A/div)

SC21152 Datenblatt(PDF) 9 Page - Semtech Corporation