TAJW476M010
AVX
a small tantalum capacitor (AVX part # TAJW476M010) has been inserted on the pads between the input power and return terminals
Design DocumentAnalog
Quick Start Guide for Demonstration Circuit 1013: Dual Monolithic Synchronous Buck Regulators (LTC3547)
Quick start guide for the DC1013 demo board featuring the LTC3547 dual 300mA synchronous buck regulator. Supports 2.5V to 5.5V input and 2.25MHz switching frequency.
Overview
This document provides technical specifications and setup procedures for Demonstration Circuit 1013, featuring the LTC3547 monolithic dual synchronous buck regulator. The circuit operates within an input voltage range of 2.5V to 5.5V and provides two independent outputs capable of delivering up to 300mA each. It features a nominal switching frequency of 2.25 MHz, allowing for compact, low-profile surface mount designs. The board supports multiple output voltage configurations: Vout1 (1.2V, 1.5V, 1.8V) and Vout2 (2.5V, 3.3V). Key performance features include 95% efficiency, Burst Mode operation for low load efficiency (40uA per channel), and low shutdown current (<1uA). The guide includes a performance summary, quick start setup procedures, and a warning regarding input voltage ringing suppression using an AVX TAJW476M010 tantalum capacitor.
Use Cases
- Battery-powered hand-held applications
- High-efficiency portable electronics
- Low-profile surface mount designs
- Multi-rail power supply systems
- Light-load power management
Topics
LTC3547
DC1013
dual buck regulator
synchronous step-down converter
Burst Mode
Linear Technology
Analog Devices
PMIC
TAJW476M010
2.25 MHz switching
Referenced Parts
LTC3547
Linear Technology
based on the LTC3547 monolithic dual synchronous buck regulator IC.
| TAJW476M010 | AVX | a small tantalum capacitor (AVX part # TAJW476M010) has been inserted on the pads between the input power and return terminals |
| LTC3547 | Linear Technology | based on the LTC3547 monolithic dual synchronous buck regulator IC. |