LTC3203
Linear Technology
500mA low noise, high efficiency charge pump converter with LTC3203
Design DocumentAnalog
Quick Start Guide for DC863: LTC3203 500mA Charge Pump Converter
Quick start guide for the DC863 demonstration circuit featuring LTC3203 charge pump converters with up to 500mA output current and 2.7V to 5.5V input range.
Overview
This design document provides specifications and operating procedures for the DC863 demonstration circuit, which evaluates the LTC3203 family of high-efficiency, low-noise charge pump converters. The circuit supports input voltages between 2.7V and 5.5V and delivers output currents up to 500mA. The guide details three assembly versions: the DC863A-A (3.3V fixed output using LTC3203B), DC863A-B (selectable 4.5V or 5V output using LTC3203-1 with Burst Mode), and DC863A-C (selectable 4.5V or 5V output using LTC3203B-1 with constant frequency). Key features include automatic 1.5x and 2x conversion modes for optimized efficiency, soft-start, and thermal protection.
Use Cases
- Battery powered portable systems
- Low noise regulated power supplies
- Space-constrained high current applications
- Li-Ion to 5V conversion
- Fixed 3.3V voltage regulation
Topics
LTC3203
LTC3203B
LTC3203-1
LTC3203B-1
LTC3203BEDD
LTC3203EDD-1
DC863
charge pump
step-up converter
switched capacitor
power management
DFN package
Referenced Parts
LTC3203-1
Linear Technology
featuring the LTC3203B, LTC3203-1, and LTC3203B-1 respectively.
LTC3203B
Linear Technology
featuring the LTC3203B, LTC3203-1, and LTC3203B-1 respectively.
LTC3203B-1
Linear Technology
featuring the LTC3203B, LTC3203-1, and LTC3203B-1 respectively.
LTC3203BEDD
Linear Technology
evaluate the performance of the LTC3203BEDD, LTC3203EDD-1 and LTC3203BEDD-1.
LTC3203BEDD-1
Linear Technology
evaluate the performance of the LTC3203BEDD, LTC3203EDD-1 and LTC3203BEDD-1.
LTC3203EDD-1
Linear Technology
evaluate the performance of the LTC3203BEDD, LTC3203EDD-1 and LTC3203BEDD-1.
| LTC3203 | Linear Technology | 500mA low noise, high efficiency charge pump converter with LTC3203 |
| LTC3203-1 | Linear Technology | featuring the LTC3203B, LTC3203-1, and LTC3203B-1 respectively. |
| LTC3203B | Linear Technology | featuring the LTC3203B, LTC3203-1, and LTC3203B-1 respectively. |
| LTC3203B-1 | Linear Technology | featuring the LTC3203B, LTC3203-1, and LTC3203B-1 respectively. |
| LTC3203BEDD | Linear Technology | evaluate the performance of the LTC3203BEDD, LTC3203EDD-1 and LTC3203BEDD-1. |
| LTC3203BEDD-1 | Linear Technology | evaluate the performance of the LTC3203BEDD, LTC3203EDD-1 and LTC3203BEDD-1. |
| LTC3203EDD-1 | Linear Technology | evaluate the performance of the LTC3203BEDD, LTC3203EDD-1 and LTC3203BEDD-1. |