Inductorless (Charge Pump) DC/DC Converters
Analog Devices’ family of charge pumps offers the widest selection of simple and compact inductorless dc-to-dc converter designs. These converters can be used to step-up, step-down, or invert an input voltage. By eliminating the inductor, these switched capacitor converters provide a small solution footprint and a simpler design. Furthermore, by incorporating spread spectrum technology on-chip, both input and output noise are significantly reduced.
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Application Notes
- AN29 - Some Thoughts on DC-DC Converters PDF
- AN88 - Ceramic Input Capacitors Can Cause Overvoltage Transients PDF
- AN43 - Bridge Circuits PDF
- AN42 - Voltage Reference Circuit Collection PDF
- AN23 - Micropower Circuits for Signal Conditioning PDF
Design Notes
- New Design Note 571: 170W Voltage Doubler in 23mm × 16.5mm Package
- High Efficiency, High Density, Switched Capacitor Converter for High Power Applications
- DN140 - Updated Operational Amplifier Selection Guide for Optimum Noise Performance PDF
- DN310 - New Step-Down Charge Pumps are Tiny, Efficient and Very Low Noise PDF
- DN189 - Step-Up/Step-Down DC/DC Conversion Without Inductors PDF
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Technical Articles
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The Interleaved Inverting Charge Pump—Part 1: A New Topology for Low Noise Negative Voltage Supplies
Analog Dialogue
- Low Noise Power Supplies Come in Many Flavors: Part 2 - Charge Pump Solutions
- Clever Circuit Improves Efficiency of Charge Pump Plus Linear Regulator Solution
- Spread Spectrum Frequency Modulation Reduces EMI
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2.7V to 38V VIN Range, Low Noise, 250mA Buck-Boost Charge Pump Converter
LT Journal