Semtech Corporation SC1485ITSTRT

Mounting Type

Surface Mount

Package / Case

28-TSSOP (0.173, 4.40mm Width)

Surface Mount

having leads that are designed to be soldered on the side of a circuit board that the body of the component is mounted on.

YES

Number of Pins

28

Operating Temperature

The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.

-40°C~125°C TJ

Packaging

Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.

Tape & Reel (TR)

Published

2005

JESD-609 Code

e3

Pbfree Code

yes

Part Status

Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.

Obsolete

Moisture Sensitivity Level (MSL)

1 (Unlimited)

Number of Terminations

28

ECCN Code

EAR99

Terminal Finish

Matte Tin (Sn)

Additional Feature

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

ALSO OPRERATES IN ADJUSTABLE MODE FROM 0.5 TO 5.5V

Terminal Position

DUAL

Terminal Form

Occurring at or forming the end of a series, succession, or the like; closing; concluding.

GULL WING

Peak Reflow Temperature (Cel)

260

Terminal Pitch

The center distance from one pole to the next.

0.65mm

Function

Step-Down

Number of Outputs

2

Output Voltage

5.5V

Output Type

Transistor Driver

Input Voltage-Nom

5V

Voltage

5V

Analog IC - Other Type

DUAL SWITCHING CONTROLLER

Output Configuration

Positive

Output Current

The rated output current is the maximum load current that a power supply can provide at a specified ambient temperature. A power supply can never provide more current that it's rated output current unless there is a fault, such as short circuit at the load.

1.3A

Voltage - Supply (Vcc/Vdd)

1.8V~25V

Quiescent Current

The quiescent current is defined as the current level in the amplifier when it is producing an output of zero.

5μA

Control Features

Current Limit, Enable, On Time Control, Power Good

Topology

Buck

Control Mode

VOLTAGE-MODE

Control Technique

PULSE WIDTH MODULATION

Synchronous Rectifier

Synchronous rectification is a technique for improving the efficiency of rectification by replacing diodes with actively controlled switches, usually power MOSFETs or power bipolar junction transistors (BJT).

Yes

Switcher Configuration

PHASE-SHIFT

Clock Sync

Clock synchronization is a topic in computer science and engineering that aims to coordinate otherwise independent clocks. Even when initially set accurately, real clocks will differ after some amount of time due to clock drift, caused by clocks counting time at slightly different rates.

No

Duty Cycle

the percentage of the ratio of pulse duration, or pulse width (PW) to the total period (T) of the waveform.

90 %

Output Phases

1

Length

9.7mm

Width

4.4mm

RoHS Status

RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

RoHS Compliant

Lead Free

Lead Free