SC653ULTRT datasheet(4/22 Pages) SEMTECH

Part #	SC653ULTRT

Description	Light Management Unit with 2 LDOs and SemPulse짰Interface

Download	22 Pages

Scroll/Zoom	100%

Manufacturer	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

Logo

4 / 22 page

SC653

4

Parameter

Symbol

Conditions

Min

Typ

Max

Units

Charge Pump Electrical Specifications (continued)

1x Mode to 1.5x Mode

Falling Transition Voltage

V

TRANS1x

I

OUT

= 40mA, I

BLn

= 10mA, V

OUT

= 3.2V

3.27

V

1.5x Mode to 1x Mode Hysteresis

V

HYST1x

I

OUT

= 40mA, I

BLn

= 10mA, V

OUT

= 3.2V

250

mV

1.5x Mode to 2x Mode

Falling Transition Voltage

V

TRANS1.5x

I

OUT

= 40mA, I

BLn

= 10mA, V

OUT

= 4.0V(5)

2.92

V

2x Mode to 1.5x Mode Hysteresis

V

HYST1.5x

I

OUT

= 40mA, I

BLn

= 10mA, V

OUT

= 4.0V(5)

300

mV

Current Sink Off-State

Leakage Current

I

BLn

V

IN

= V

BLn

= 4.2V

0.1

1

μA

Pump Frequency

f

PUMP

V

IN

= 3.2V

250

kHz

LDO Electrical Specifications

LDO1 Voltage Setting

V

LDO1

Range of nominal settings in 100mV increments

1.5

3.3

V

LDO2 Voltage Setting

V

LDO2

Range of nominal settings in 100mV increments

1.2

1.8

V

LDO1, LDO2 Output

Voltage Accuracy

ΔV

LDO

I

LDOn

= 1mA, T

A

= 25°C, 2.9V ≤ V

IN

≤ 4.2V

-3

+3

%

I

LDOn

= 1mA to 100mA, 2.9V ≤ V

IN

≤ 4.2V

-3.5

±3

+3.5

%

Line Regulation

ΔV

LINE

I

LDO1

= 1mA, V

OUT

= 2.8V

2.1

7.2

mV

I

LDO2

= 1mA, V

OUT

= 1.8V

1.3

4.8

Load Regulation

ΔV

LOAD

V

LDO1

= 3.3V, I

LDO1

= 1mA to 100 mA

25

mV

V

LDO2

= 1.8V, I

LDO2

= 1mA to 100 mA

20

Dropout Voltage(6)

V

D

I

LDO1

= 150mA

150

200

mV

Power Supply Rejection Ratio

PSRR

LDO1

1.5V < V

LDO1

< 3.0V, f < 1kHz, C

BYP

= 22nF,

I

LDO1

= 50mA with 0.5V

P-P

supply ripple

55

dB

PSRR

LDO2

1.2V < V

LDO2

, f < 1kHz, C

BYP

= 22nF, I

LDO2

= 50mA,

with 0.5V

P-P

supply ripple

60

Output Voltage Noise

e

n-LDO1

LDO1, 10Hz < f < 100kHz, C

BYP

= 22nF, C

LDOn

= 1μF,

I

LDO1

= 50 mA, 1.5V < V

LDO1

< 3.0V

100

μV

RMS

e

n-LDO2

LDO2, 10Hz < f < 100kHz, C

BYP

= 22nF, C

LDO

= 1μF,

I

LDO2

= 50 mA

50

Minimum Output Capacitor

C

LDO(MIN)

1μF

Electrical Characteristics (continued)

Similar Part No. - SC653ULTRT

Manufacturer	Part #	Datasheet	Description
Semtech Corporation	SC652	287Kb / 16P	Backlight Driver for 5 LEDs with Charge Pump and PWM Control
SHENZHEN FUMAN ELECTRON...	SC6523	119Kb / 5P	LCD driver IC
Semtech Corporation	SC652EVB	287Kb / 16P	Backlight Driver for 5 LEDs with Charge Pump and PWM Control
	SC652ULTRT	287Kb / 16P	Backlight Driver for 5 LEDs with Charge Pump and PWM Control
	SC654	270Kb / 22P	Light Management Unit for 6 LEDs with SemPulseTM Interface

More results

Similar Description - SC653ULTRT

Manufacturer	Part #	Datasheet	Description
Semtech Corporation	SC643	355Kb / 26P	Light Management Unit with 4 LDOs and SemPulse짰Interface
	SC644	609Kb / 26P	Light Management Unit with 4 LDOs and SemPulse짰Interface
	SC624	295Kb / 22P	LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs,and SemWireTM Interface
	SC624	288Kb / 22P	LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs, and SemWireTM Interface
	SC624A	295Kb / 23P	LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs, and I2C Interface
	SC624A	302Kb / 23P	LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs,and I2C Interface
	SC622	300Kb / 21P	LED Light Management Unit Charge Pump, 400mA Flash LED, Dual LDOs, and SemWireTM Interface
	SC622A	313Kb / 23P	LED Light Management Unit Charge Pump, 400mA Flash LED, Dual LDOs, and I2C Interface
	SC622	301Kb / 21P	LED Light Management Unit Charge Pump, 400mA Flash LED, Dual LDOs, and SemWire Interface
	SC622A	308Kb / 23P	LED Light Management Unit Charge Pump, 400mA Flash LED,Dual LDOs,and I2C Interface

More results

SC653ULTRT Datasheet(PDF) 4 Page - Semtech Corporation

SC653ULTRT Datasheet(HTML) 4 Page - Semtech Corporation

Similar Part No. - SC653ULTRT

Similar Description - SC653ULTRT

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22

Datasheet Download

Link URL