DC204 - LT1676CS8 - LT1776CS8 Evaluation Kit

Features

• DC204 - LT1676CS8 - LT1776CS8 Evaluation Kit
  

• Disclaimer: Linear Technology cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Linear Technology product. No circuit patent licenses are implied. Linear Technology reserves the right to change the circuitry and specifications without notice at any time.

Typical Application

Description

Demonstration circuit DC204 Version A is a high efficiency step-down (buck) regulator using the LT1676 switching regulator. Typical applications include automotive DC/DC conversion, telecom 48V step-down and IEEE1394 stepdown converters. This controller includes an on board 700mA peak-current switch and is optimized for use with a high supply voltage. The input voltage can range from 7V to 60V. The output voltage is jumper selectable to either 3.3V or 5V. The LT1676 uses a 100kHz switching frequency and current mode control, resulting in very high efficiency, low ripple and fast transient response. At low output currents, the LT1676 automatically slows down the turn-on rise time. This eliminates pulse skipping, which helps reduce output ripple voltage and switching noise in the audio frequency spectrum. Additionally, the supply current can be shut down to less than 20mA in standby mode. Demonstration circuit DC204 Version B is also a high efficiency step-down regulator using the LT1776 switching regulator. The LT1776 is identical to the LT1676 with the exception that its nominal operating frequency is 200kHz. Gerber files for this circuit board are available. Call the LTC factory.

Packaging

Order Info

• Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
• Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
• Please refer to our general ordering information or the product datasheet for more details

Evaluation Kits

Part Number	Description	Price
DC204A-A	LT1676CS8 | High Voltage, High Eff., Step Down Switching Regulator, 7V to 60Vin, 3.3V and 5V @ 0.5A Out (thru-hole input cap)	$75.00
DC204A-B	LT1776CS8 | High Voltage, High Eff., Step Down Switching Regulator, 7V to 60Vin, 3.3V and 5V @ 0.5A Out (thru-hole input cap)	$75.00
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Applications

 

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