SC600CIMLTRT datasheet(3/19 Pages) SEMTECH

Part #	SC600CIMLTRT

Description	mAhXLifeTM LED Driver with 5.0V, 4.5V, or 4.0V Output

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Manufacturer	SEMTECH [Semtech Corporation]

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POWER MANAGEMENT

SC600

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Output Current

I

OUT

Freq. = 262kHz or 650kHz(2); Versions A & C

60

mA

Freq. = 262kHz or 650kHz(2); Versions B & D

120

Freq. = 8kHz; Versions A & C

5

Freq. = 8kHz; Versions B & D

10

Freq. = 32kHz; Versions A & C

20

Freq. = 32kHz; Versions B & D

40

Pump Frequency

f

PUMP

Enable = 1, CD4 = 0, CX8 = 0

-15%

32.768

+15%

kHz

Enable = 1, CD4 = 1, CX8 = 0

-15%

8.192

+15%

Enable = 1, CD4 = 0, CX8 = 1

-13%

262.14

+15%

Enable = 1, CD4 = 1, CX8 = 1

-20%

650

+20%

Frequency Mode

Transition Time

T

FMT

Transition time from one frequency

mode to any other frequency mode(3)

1

Period

Short Circuit Current

I

SC

V

OUT = 0V, IOUT = IIN

180

600

mA

Input High Threshold

V

IH

All Input Pins (Enable, CD4, CX8)

1.3

V

Input Low Threshold

V

IL

All Input Pins (Enable, CD4, CX8)

0.4

V

Input High Current

I

IH

All Input Pins (Enable, CD4, CX8)

10

μA

Input Low Current

I

IL

All Input Pins (Enable, CD4, CX8)

10

μA

Mode Transition

Voltage

V

IN

1.5x to 2x mode, Versions A & B

3.43

3.50

3.56

V

2x to 1.5x mode, Versions A & B

3.48

3.58

3.64

V

Hysteresis

30

80

180

mV

V

IN

1.5x to 2x mode, Versions C & D

3.23

3.30

3.36

V

2x to 1.5x mode, Versions C & D

3.33

3.40

3.46

V

Hysteresis

40

100

180

mV

Power Efﬁciency

from Battery to

Regulated Charge

Pump Output@262kHz

η

V

IN = 3.60V, VOUT = 5.0V, IOUT = 60mA

92

%

V

IN = 3.60V, VOUT = 4.5V, IOUT = 120mA

83

%

Output Ripple

Voltage

V

PP

Freq = 262kHz, I

OUT = 60mA

(2), (3)

25

45

mV

Notes:

1) Version C has an extended input voltage range of operation at V

IN = 2.60V to 5.5V.

2) 650kHz allows the use of a smaller bucket capacitor.

3) Guaranteed by design.

4) Peak-to-peak output ripple voltage with C

OUT = CBUCKET =1μF and X5R dielectric.

Electrical Characteristics (Cont.)

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