Step-up/step-down DC/DC conversion without inductors
Sam Nork
Abstract
The LTC1514/LTC1515 family of switched capacitor DC/DC converters, which offer a simple and cost-effective solution to low power step-up/step-down DC/DC conversion, are described.
Keywords
Step-up/step-down DC/DC converter
LTC1514
LTC1515
Introduction
Many applications require a regulated supply from an input source that may be greater than or less than the desired output voltage. Such applications place unique constraints on the DC/DC converter and, as a general rule, add complexity and cost to the power supply. A typical example is generating 5V from a 4-cell NiCd battery. When the batteries are fully charged, the input voltage is around 6V. When ...
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