Linear Technology: DC1227A Demo Board for LTC3534EDHC Buck-Boost DC/DC Converter

atomar — Wed, 25 Jun 2014 00:52:47 GMT

Current Revision posted to Documents by atomar on 6/25/2014 12:52:47 AM

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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

Type	Description
User Manual	LTC: Demo Manual for LTC3534EDHC - 1 MHz 500mA Synchronous Buck-Boost Converter
Datasheet	LTC: Datasheet for LTC3534 - 7V, 500mA Synchronous Buck-Boost DC/DC Converter
Product Brief	LTC: Product Brief for Energy Harvesting
Product Brief	LTC: Product Brief for 7V, 500mA Synchronous Buck-Boost DC/DC Converter Provides Extended Battery Run Time in Handheld Applications

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

Tags: demo_board, ltc3534edhc, linear_technology, ltc3534, dc1227a