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SC1403 - Mobile Multi-Output PWM Controller with Virtual Current SenseTM

Download the SC1403 datasheet PDF. This datasheet also covers the SC1 variant, as both devices belong to the same mobile multi-output pwm controller with virtual current sensetm family and are provided as variant models within a single manufacturer datasheet.

General Description

The SC1403 is a multiple-output power supply controller designed to power battery operated systems.

The SC1403 provides synchronous rectified buck converter control for two (3.3 V and 5 V) power supplies.

An efficiency of 95% can be achieved for the two supplies.

Key Features

  • ‹ 3.3V and 5V dual synchronous outputs, resistor ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ programmable to 2.5V Fixed frequency or PSAVE for maximum efficiency over wide load current range 5V / 50mA linear regulator TM Virtual Current Sense for enhanced stability Accurate low loss current limiting Out of phase switching reduces input capacitance requirements External compensation supports wide range of output filter components Programmable power-up sequence Power good output Output overvoltage & overcurrent protect.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SC1-403.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number SC1403
Manufacturer SEMTECH
File Size 567.21 KB
Description Mobile Multi-Output PWM Controller with Virtual Current SenseTM
Datasheet download datasheet SC1403 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Mobile Multi-Output PWM Controller with Virtual Current SenseTM POWER MANAGEMENT Description The SC1403 is a multiple-output power supply controller designed to power battery operated systems. The SC1403 provides synchronous rectified buck converter control for two (3.3 V and 5 V) power supplies. An efficiency of 95% can be achieved for the two supplies. The SC1403 uses Semtech’s proprietary Virtual Current SenseTM technology along with external error amplifier compensation to achieve enhanced stability and DC accuracy over a wide range of output filter components while maintaining fixed frequency operation. The SC1403 also provides a linear regulator for system housekeeping.