SMS3.3TCT Semtech, SMS3.3TCT Datasheet

SMS3.3TCT

Manufacturer Part Number

SMS3.3TCT

Description

Manufacturer

Semtech

Datasheet

1.LC03-3.3TBT.pdf (12 pages)

Current page: 1 of 12
Download datasheet (200Kb)

The SC104 is a micro power dc-dc step-up converter

which converts an input voltage, in the range of 1.55V to

10V, to a constant current. The part features a range of

user programmable voltages and currents including

dynamic adjustment of the “constant” current. The

converter is capable of generating output voltages as

low as the input supply voltage and up to 38V. During

shutdown, the part draws a typical 500nA standby

current.

The output current is set by the external resistor R1.

Dynamic adjustment of the output current can be made

by the application of an analog voltage to the ADJ

input, or by PWMing this pin.

The peak switch current is programmable through the

external resistor R

inductors and battery technologies.

March 22, 2005

POWER MANAGEMENT

Description

Typical Application Circuit - 6 LEDs

IOUT ADJUST

IOUT = 15mA

LIM

LED4

LED3

enabling the use of a wide range of

LED5

LED2

LED6

LED1

RSET

23.2R

COUT

0.47uF

Features

Applications

Adjustable output current using pulse width

modulation or analog voltage input

38V output capability supports up to 10 white LEDs

Wide range of input voltages 1.55V to 10V

Low quiescent current

0.5µA standby current in shutdown

Programmable cycle by cycle current limit

Surface mount packaging (3x3mm 8pin MLP)

Output voltage and over-temperature protection

White LED supplies

Color LED supplies

Cellular phones

PDAs

Electronic books

Handheld computers

Wireless web appliances

Micro Power Constant-Current

ADJ

GND

OUT

SC104

LIM

VIN = 3V to 5V

DC-DC Converter

12uH

CIN

4.7uF

www.semtech.com

RLIM

7.50k

SC104

ENABLE

Related parts for SMS3.3TCT

Related keywords

SMS3.3TCT datasheet
SMS3.3TCT data sheet
SMS3.3TCT pdf datasheet
SMS3.3TCT component
SMS3.3TCT part
SMS3.3TCT distributor
SMS3.3TCT RoHS
SMS3.3TCT datasheet download