SC621(2007) View Datasheet(PDF) - Semtech Corporation

Part Name

Description

Manufacturer

SC621
(Rev.:2007)

LED Light Management Unit Charge Pump, 4 LEDs, 400mA Flash LED, Dual LDOs, and SemWire™ Interface

Semtech Corporation 

SC621

Typical Characteristics (continued)

Load Transient Response (LDO1) — Rising Edge

V =3.7V, V =2.8V, I =1 to 100mA

IN

LDO1

LDO1

VLDO1 (50mV/div)

Load Transient Response (LDO2) — Rising Edge

V =3.7V, V =1.8V, I =1 to 100mA

IN

LDO2

LDO2

VLDO2 (50mV/div)

ILDO1 (100mA/div)

Time (20μs/div)

Load Transient Response (LDO1) — Falling Edge

VIN=3.7V, VLDO1=2.8V, ILDO1=100 to 1mA

VLDO1 (50mV/div)

ILDO2 (100mA/div)

Time (20μs/div)

Load Transient Response (LDO2) — Falling Edge

V =3.7V, V =1.8V, I =100 to 1mA

IN

LDO2

LDO2

VLDO2 (50mV/div)

ILDO1 (100mA/div)

Time (200μs/div)

ILDO2 (100mA/div)

Time (200μs/div)

9

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