LTC3204
LTC3204
PRODUCTIONLow Noise Regulated Charge Pump in 2 × 2 DFN
- Part Models
- 8
- 1ku List Price
- Starting From $2.64
Viewing:
Overview
- Fixed 3.3V or 5V Outputs
- VIN Range:
- 1.8V to 4.5V (LTC3204-3.3/LTC3204B-3.3)
- 2.7V to 5.5V (LTC3204-5/LTC3204B-5)
- Output Current:
- Up to 150mA (LTC3204-5/LTC3204B-5)
- Up to 50mA (LTC3204-3.3/LTC3204B-3.3)
- Automatic Burst Mode® Operation with IQ = 48µA (LTC3204-3.3/LTC3204-5)
- Constant Frequency Operation at All Loads (LTC3204B-3.3/LTC3204B-5)
- Low Noise Constant Frequency (1.2MHz) Operation*
- Built-In Soft-Start Reduces Inrush Current
- Shutdown Disconnects Load from Input
- Shutdown Current <1µA
- Short-Circuit/Thermal Protection
- Available in Low Profile 6-Lead DFN Package
The LTC3204-3.3/LTC3204-5/LTC3204B-3.3/LTC3204B-5 are low noise, constant frequency (1.2MHz) switched capacitor voltage doublers. The LTC3204-3.3/ LTC3204B-3.3 can produce a regulated output voltage of 3.3V from a minimum input voltage of 1.8V (2 alkaline cells) whereas the LTC3204-5/LTC3204B-5 can produce 5V from a minimum of 2.7V (Li-Ion battery) input.
LTC3204-3.3/LTC3204-5 feature automatic Burst Mode® operation at light loads to maintain low supply current whereas LTC3204B-3.3/LTC3204B-5 feature constant frequency operation at any load. Built-in soft-start circuitry prevents excessive inrush current during start-up. Thermal shutdown and current-limit circuitry allow the parts to survive a continuous short-circuit from VOUT to GND.
High switching frequency minimizes overall solution footprint by allowing the use of tiny ceramic capacitors. In shutdown, the load is disconnected from the input and the quiescent current is reduced to <1µA.
The LTC3204-3.3/LTC3204-5/LTC3204B-3.3/LTC3204B-5 are available in a low profile (0.75mm) 6-lead 2mm × 2mm DFN package.
*Protected by U.S. Patents including 6411531.
Applications
- 2 AA Cell to 3.3V
- Li-Ion to 5V
- USB On-The-Go Devices
- White LED Drivers
- Handheld Devices
Documentation
Data Sheet 1
User Guide 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC3204BEDC-3.3#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC3204BEDC-3.3#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC3204BEDC-5#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC3204BEDC-5#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC3204EDC-3.3#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC3204EDC-3.3#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC3204EDC-5#TRMPBF | 6-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC3204EDC-5#TRPBF | 6-Lead DFN (2mm x 2mm w/ EP) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Request a Driver/SoftwareTools & Simulations
LTspice 2
- LTC3204-5 Demo Circuit - Low Noise Regulated Charge Pump (2.7-5.5V to 5V @ 150mA)
- LTC3204-3.3 Demo Circuit - Low Noise Regulated Charge Pump (1.8-4.5V to 3.3V @ 50mA)
Models for the following parts are available in LTspice:
- LTC3204-3.3
- LTC3204-5
- LTC3204B-3.3
- LTC3204B-5
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.