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 | Kit Overview
Demonstartion Circuit 1227A (DC1227ADC1227A) is a wide VIN, high efficiency, fixed frequency synchronous Buck-Boost converter using the LTC3534EDHC. The LTC3534EDHC buck-boost topology operates with input voltages above, below or equal to the output voltage making the product ideal for multi-cell Alkaline/NiMH or single Lithium-Ion/Polymer applications where the output voltage is within the battery voltage range.
The LTC3534EDHC operates with a 2.4V to 7V input voltage range and a VOUT range from 1.8V to 7V. The demonstration board has been designed to operate with VIN from 3.6V to 6.4V and VOUT is set to 5V, with an output curent up to 500mA.
The LTC3534LTC3534 is a wide VIN range, highly efficient, fixed frequency, buck-boost DC/DC converter that operates from input voltages above, below or equal to the output voltage. The topology incorporated in the IC provides a continuous transfer function through all operating modes, making the product ideal for multi-cell Alkaline/NiMH or single Lithium-Ion/Polymer applications where the output voltage is within the battery voltage range.
Other features include fixed 1MHz operating frequency, a <1μA shutdown, short-circuit protection, programmable soft-start, current limit and thermal overload protection.
Key Applications: Medical Instruments, Portable Barcode Readers, Portable Inventory Terminals, USB to 5V Supply, Handheld GPS | |||||||||||
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Technical Documents
Learning Center
Design Elements
| Type | Description |
|---|---|
| Schematics | LTC: Schematic File for DC1227A |
| Layout | LTC: Layout File for DC1227A |
| BOM | LTC: BOM File for DC1227A |
Video
Kit Features
Key Features for LTC3534EDHC Buck-Boost DC/DC Converter:
- Regulated Output with Input Voltages Above, Below or Equal to the Output
- 2.4V to 7V Input and 1.8V to 7V Output Voltage Range
- 5V VOUT at 500mA from 4 AA Cells
- Single Inductor
- Synchronous Rectification: Up to 94% Efficiency
- Burst Mode
Operation with 25μA IQ - Output Disconnect in Shutdown
- 1MHz Switching Frequency
- <1μA Shutdown Current
Kit Contents
The Linear Technology's DC1227ADC1227A supplied with below contents:
- Demo Board for LTC3534EDHC