SC461 datasheet(8/31 Pages) SEMTECH

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SC461

Characteristics in this section are based on using the Detailed Application Circuit.

Startup into Pre-bias Output

Time (2ms/div)

External 5V bias, V

IN = 12V, Load 20mA, PSV enabled

Start-up — SS ramp-up

Time (2ms/div)

Start-up — EN Input

Automatic Restart — V

IN transient

(5V/div)

VOUT

(1V/div)

VIN

(10V/div)

Time (40ms/div)

Over-current Response

Time (100µs/div)

External 5V bias, V

IN = 12V, Load 17A

PGOOD

(5V/div)

LOAD

(10A/div)

VOUT

(1V/div)

(10V/div)

Automatic Restart — Over-current

Time (20ms/div)

(5V/div)

(10V/div)

LOAD

(10A/div)

VOUT

(1V/div)

Typical Characteristics (continued)

External 5V bias, V

IN = 12V, Load 1A

External 5V bias, V

IN = 12V, no load, PSV enabled

External 5V bias, V

IN = 12V, Load resistance 50mΩ continuous

PGOOD

(5V/div)

(10V/div)

VOUT

(1V/div)

(5V/div)

External 5V bias, V

IN = 12V, no load, PSV enabled

(5V/div)

PGOOD

(5V/div)

VOUT

(1V/div)

(10V/div)

(5V/div)

PGOOD

(5V/div)

VOUT

(1V/div)

(10V/div)

Time (2ms/div)

(10V/div)

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