SC668 datasheet(9/46 Pages) SEMTECH

Part #	SC668

Description	8 LED Light Management Unit Automatic Dropout Prevention , Ambient Light Sense Input, PWM Dimming, and 4 LDOs

PDF	46 Pages

Scroll/Zoom	100%

Manufacturer	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

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9 / 46 page

SC668

Typical Characteristics — LDOs

LDO Noise vs. Load Current (2.8V)

100

120

160

200

IOUT(mA)

VLDO = 2.8V, VIN = 3.7V, 10Hz < f < 100kHz, TA = 25°C

LDO Noise vs. Load Current (1.8V)

IOUT(mA)

VLDO = 1.8V, VIN = 3.7V, 10Hz < f < 100kHz, TA = 25°C

100

120

160

200

Load Regulation (LDO2)

VIN = 3.7V, TA = 25°C

ILDO (mA)

1.2V

1.5V

1.8V

-25

-20

-15

-10

-5

120

160

200

Load Regulation (LDOm)

VIN = 3.7V, m = 1, 3, or 4, TA = 25°C

-25

-20

-15

-10

-5

120

160

200

ILDO (mA)

1.5V

1.8V

2.5V

2.8V

3.3V

Line Regulation (LDO2)

-1

-0.75

-0.5

-0.25

0.25

0.5

0.75

2.70

3.00

3.30

3.60

3.90

4.20

VIN (V)

ILDO2 = 1mA, VLDO2 = 1.2V to 1.8V, TA = 25°C

1.2V

1.8V

Line Regulation (LDOm)

-3

-2

-1

2.70

3.00

3.30

3.60

3.90

4.20

VIN (V)

ILDOm = 1mA, VLDOm = 1.5V to 3.3V, m = (1,3, or 4), TA = 25°C

3.3V

2.8V

1.8V

1.5V

SC668 Datasheet(PDF) 9 Page - Semtech Corporation

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