DC849A Micropower Boost Regulators by Analog Devices

Status: Production
Series: LTC3499
RoHS: Compliant
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The LTC3499/LTC3499B are synchronous, fixed frequency step-up DC/DC power converters with integrated reverse battery protection that protect and disconnect the devices and load when the battery polarity is reversed while delivering high efficiency in a small (3mm × 3mm) DFN package. True output disconnect eliminates inrush current and allows zero load current in shutdown.The devices feature an input voltage range of 1.8V to 5.5V enabling operation from two alkaline or NiMH batteries. The switching frequency is internally set at 1.2MHz allowing the use of tiny surface mount inductors and capacitors. A minimal number of external components are required to generate output voltages ranging from 2V to 6V. The LTC3499 features automatic Burst Mode operation to increase efficiency at light loads, while the LTC3499B features continuous switching at light loads.The soft-start time is externally programmable through a small capacitor. Anti-ring circuitry reduces EMI emissions by damping the inductor in discontinuous mode. The devices feature <1μA shutdown supply current, integrated overvoltage protection and are available in both 8-pin (3mm × 3mm) DFN and 8-pin MSOP packages.

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Prices starting from US$147.12

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Features

Reverse-Battery Protection for DC/DC Converter and Load
High Efficiency: Up to 94%
Generates 5V at 175mA from a 1.8V Input
Operates from 1.8V to 5.5V Input Supply
2V to 6V Adjustable Output Voltage
Inrush Current Controlled During Start-Up
Output Disconnnect in Shutdown
Low Noise 1.2MHz PWM Operation
Tiny External Components
Automatic Burst Mode® Operation (LTC3499)
Continuous Switching at Light Loads (LTC3499B)
Overvoltage Protection
8-Lead (3mm × 3mm × 0.75mm) DFN and MSOP Packages

Last 6 months Inventory & Pricing History


Alternative Descriptions

LTC3499EDD DC to DC Converter and Switching Regulator Chip 3.201V to 3.399V Output Demonstration Circuit | Richardson RFPD


DC849A Development Boards & Evaluation Kits by Linear Technology

DEMOBOARD SYNC BOOST CONVERTER

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

Silicon Manufacturer Linear Technology
Silicon Core Number LTC3499
Kit Application Type Power Management - Voltage Regulator
Application Sub Type Synchronous Boost Converter
Product Range -

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DC849A?

Additional datasheets, footprints and schematics for DC849A are listed on our Part Details page. You can also find images and similar parts to DC849A on this page.

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Distributor pricing and stock information is available for DC849A on our Product Comparison page. Access via the 'View Pricing & Stock' button to view DC849A price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does DC849A fall under?

The DC849A is listed under Micropower Boost Regulators.

Can I view similar or alternative parts?

You can view similar parts to DC849A when available in the Micropower Boost Regulators range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the DC849A you can contact the distributor directly for product support, shipping queries etc.

Is the DC849A RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

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Authorised distributors including Richardson RFPD have stock available or on a lead time for DC849A.

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