Semtech SC1166 Programmable Synchronous DC/DC Converter Datasheet

This document is a wireless network access device manual that provides detailed interface introduction and usage methods for wireless network access devices. The device supports connecting to WiFi networks and can connect to the Internet via WiFi networks. The device also has an integrated 4G module that can connect to the Internet via 4G networks. In addition, the device can be connected to a computer via USB and can transfer data via USB.


Semtech SC1166 Programmable Synchronous DC/DC Converter Datasheet - cover page
Brand
Semtech
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
12
File format
PDF
File size
423 KB
Published
06 July, 2012
Updated
01 October, 2023
MD5 checksum
A12270385A08C99CD52FF4FC2ACA11FA

About this manual

The SC1166 combines a synchronous voltage mode controller with two low-dropout linear regulators to implement three DC/DC converters. The switching section operates at a fixed frequency of 140kHz and features an integrated 5-bit D/A converter for programmable output voltages ranging from 2.0V to 3.5V without external components.

The device includes two low-dropout linear regulators supplying 1.5V for GTL bus and 2.5V for non-GTL I/O, along with a buffered reference voltage available for external use. Key features include pulse-by-pulse current limiting, integrated power good signaling, and logic-compatible shutdown.

What's inside

  • Description
  • Features
  • Absolute Maximum Ratings
  • Electrical Characteristics
  • Pin Description
  • Output Voltage Table
  • Application Circuit
  • Materials List
  • Typical Efficiency
  • Layout Guidelines

Specifications

Oscillator Frequency140 kHz
Supply Voltage (VCC)4.75V to 5.25V
Output Voltage Range1.30V to 3.50V
Reference Voltage1.265V
Operating Temperature Range0 to +125°C (Junction)

Frequently asked questions

Does the SC1166 require external components for voltage programming?

No, it provides programmability with no external components using an integrated D/A converter.

What are the output voltages of the linear sections?

The linear sections supply 1.5V for GTL bus and 2.5V for non-GTL I/O.

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