ADP1829

Dual, Interleaved, Step-Down DC-to-DC Controller with Tracking
Manufactured by:

Product Details

The ADP1829 is a versatile, dual, interleaved, synchronous PWM buck controller that generates two independent output rails from an input of 3.0 V to 20 V, with power input voltage ranging from 1.0 V to 24 V. Each controller can be configured to provide output voltages from 0.6 V to 85% of the input voltage and is sized to handle large MOSFETs for point-of-load regulators. The two channels operate 180° out of phase, reducing stress on the input capacitor and allowing smaller, low cost components. The ADP1829 is ideal for a wide range of high power applications, such as DSP and processor core I/O power, and general-purpose power in telecommunications, medical imaging, PC, gaming, and industrial applications.

The ADP1829 operates at a pin-selectable, fixed switching frequency of either 300 kHz or 600 kHz, minimizing external component size and cost. For noise-sensitive applications, it can also be synchronized to an external clock to achieve switching frequencies between 300 kHz and 1 MHz. The ADP1829 includes soft start protection to prevent inrush current from the input supply during startup, reverse current protection during soft start for precharged outputs, as well as a unique adjustable lossless current-limit scheme utilizing external MOSFET sensing.

For applications requiring power supply sequencing, the ADP1829 also provides tracking inputs that allow the output voltages to track during startup, shutdown, and faults. This feature can also be used to implement DDR memory bus termination.

The ADP1829 is specified over the −40°C to +125°C junction temperature range and is available in a 32-lead LFCSP package.

Applications

  • Telecommunications and networking systems
  • Medical imaging systems
  • Base station power
  • Set-top boxes
  • Printers
  • DDR termination

Product Lifecycle

checked Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits

X +

Product Details

This describes the design, operation, and test results obtained with the ADP1829 evaluation board. The input range for this evaluation board is 5.5 V to 18 V. The output voltages are configured for VOUT1 = 1.8 V (with a maximum current limit of 15 A) and for VOUT2 = 1.2 V (with a maximum current limit of 15 A). All of the results tested on the evaluation board ran at a switching frequency (fSW) of 300 kHz with VIN = 12 V, VOUT1 = 1.2 V at up to 15 A, and VOUT2 = 1.8 V at up to 15 A.

Product Details

In order to get the correct unpopulated evaluation board with an appropriate Bill of Materials and Schematic, you need to use the button for "Request Evaluation Board" from within the design tool. Make sure the design tool is in a state that matches your desired power requirements.

This will create a template email that will request from us the proper blank evaluation board for that ADI part and your application's power parameters.


Note: Some parts have multiple blank boards for high/low current or for different topologies (Boost, SEPIC, SEPIC-Cuk), while other blank boards support multiple ADI parts. This is why it is important to run the design tool with your parameters before making your email request from the tool.

Tools & Simulations

X +

Design Tools

Reference Materials

X +
  • Power Reference Designs

    ADP1829 & ADP1864 Reference Design

    Three Output Voltages: 1.24 V, 3.3 V, 5 V; Output Current: 2 A to 4 A; Input voltage: 10.8-13.2 V; Ripple 2% ppk of...

  • Power Reference Designs

    ADP1829 Reference Design

    Two Output Voltages: 3.3 V, 1.0 V; Output Current: 3.0 A, 8.0 A; Input voltage: 10.8 V – 13.2 V; Ripple 2% ppk of Output

  • Power Reference Designs

    ADP1829, ADP210x, ADP171x Reference Design

    Seven Output Voltages: 5.0 V, 3.6 V, 3.3 V, 2.5 V, 1.8 V, 1.2 V, 0.9 V; Output Current: 0.002 A to 3.0 A; Input voltage:

  • Power Reference Designs

    ADP1829 and ADP1715 Reference Design

    Five Output Voltages: 5.0 V, 3.3 V, 3.3 V low noise, 2.5 V, 1.3 V; Output Current: 0.005 A to 1.65 A; Input voltage:...

  • Power Reference Designs

    ADP1829, ADP210x and ADP171x Reference Design

    Seven Output Voltages: 3.6 V, 3.3 V,3.3l V 2.5 V, 1.8 V, 1.25 V, 0.9 V; Output Current: 0.002 A to 3.0 A; Input voltage:

  • Power Reference Designs

    ADP1829 Reference Design

    Five Output Voltages: 1.0V, 1.8V, 3.3V x 2, 5V; Output Current: 0.7A to 2.8A; Input voltage: 9-12V; Ripple 2% ppk of...

  • Power Reference Designs

    ADP1829 Reference Design

    Four Output Voltages: 7.0 V, 3.3 V, 1.8 V, 1.2 V; Output Current: 1.6 A to 12.6 A; Input voltage: 19-21 V; Ripple 2% ppk

  • Power Reference Designs

    ADP1829 & ADP1821 Reference Design

    Five Output Voltages: 1.2 V, 1.8 V, 3.3 V, 5 V, 12 V; Output Current: 1 A to 4.5 A; Input voltage: 15.2-16.8 V;...

  • Power Reference Designs

    ADP1829 Reference Design

    Two Output Voltages: 5.0 V, 3.3 V; Output Current: 3 A; Input voltage: 8.0-16.0 V; Ripple 2% ppk of Output Voltage;...

  • Power Reference Designs

    ADP1829 Reference Design

    Two Output Voltages: 5.0 V, 3.3 V; Output Current: 3 A; Input voltage: 8.0-16.0 V; Ripple 2% ppk of Output Voltage;...

  • Power Reference Designs

    ADP1829 Reference Design

    Two Output Voltages: 5.0 V, 3.3 V; Output Current: 1.5 A, 2.6 A; Input voltage: 10.8 V-13.2 V; Ripple 12 mV ppk;...

Design Resources

X +

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.

ADP1829 Material Declaration
PCN-PDN Information Quality And Reliability Symbols and Footprints

Sample & Buy

X+
Back
Check Inventory

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


Price Table Help

 
Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.