SC653EVB datasheet(7/22 Pages) SEMTECH

Part #	SC653EVB

Description	Light Management Unit with 2 LDOs and SemPulse짰Interface

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Manufacturer	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

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SC653

7

Typical Characteristics (continued)

PSRR vs. Frequency — 1.8V

-70

-60

-50

-40

-30

-20

-10

0

10

100

1000

10000

Frequency (Hz)

VIN = 3.7V, IOUT = 50mA, TA = 25°C

Line Regulation (LDO2)

ILDO1 = 1mA, VLDO1 = 1.2V and 1.8V, 25°C

-1.5

-1

-0.5

0

0.5

1

1.5

2.7

3

3.3

3.6

3.9

4.2

VIN(V)

1.8V

1.2V

PSRR vs. Frequency — 2.8V

Line Regulation (LDO1)

LDO Noise vs. Load Current — 1.8V

0

20

40

60

80

100

020

40

60

80

100

IOUT (mA)

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

LDO Noise vs. Load Current — 2.8V

0

20

40

60

80

100

0

30

60

90

120

150

IOUT (mA)

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

VIN = 3.7V, IOUT = 50mA, TA = 25°C

-70

-60

-50

-40

-30

-20

-10

0

10

100

1000

10000

Frequency (Hz)

-3

-2

-1

0

1

2

3

2.7

3

3.3

3.6

3.9

4.2

VIN(V)

ILDO1 = 1mA, VLDO1 = 2.8V, 25°C

2.8V

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