ADP2323
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ADP2323

Dual 3A, 20V Synchronous Step-Down Regulator with Integrated High-Side Mosfet

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
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Part Details
Part Models 1
1ku List Price Starting From $2.90
Features
  • Input voltage 4.5 V to 20 V
  • ±1% output accuracy
  • Integrated 90 mΩ typical high-side MOSFET
  • Flexible output configuration
    Dual output: 3 A/3 A
    Parallel single output: 6 A
  • Programmable switching frequency: 250 kHz to 1.2 MHz
  • External synchronization input with programmable phase shift, or internal clock output
  • Selectable PWM or PFM mode operation
  • Adjustable current limit for small inductor
  • External compensation and soft start
  • Startup into precharged output
Additional Details
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The ADP2323 is a full featured, dual output, step-down dc-to-dc regulator based on current-mode architecture. The ADP2323 integrates two high-side power MOSFETs and two low-side drivers for the external N-channel MOSFETs. The two pulse-width mod-ulation (PWM) channels can be configured to deliver dual 3 A outputs or a parallel-to-single 6 A output. The regulator operates from input voltages of 4.5 V to 20 V, and the output voltage can be as low as 0.6 V.

The switching frequency can be programmed between 250 kHz and 1.2 MHz, or synchronized to an external clock to minimize interference in multirail applications. The dual PWM channels run 180° out of phase, thereby reducing input current ripple as well as reducing the size of the input capacitor.

The bidirectional synchronization pin can be programmed at a 60°, 90°, or 120° phase shift, providing the possibility for a stackable multiphase power solution.

The ADP2323 can be set to operate in pulse-frequency modulation (PFM) mode at a light load for higher efficiency or in forced PWM for noise sensitive applications. External compensation and soft start provide design flexibility. Independent enable inputs and power good outputs provide reliable power sequencing. To enhance system reliability, the device also includes undervoltage lockout (UVLO), overvoltage protection (OVP), overcurrent pro-tection (OCP), and thermal shutdown (TSD).

The ADP2323 operates over the −40°C to +125°C junction temperature range and is available in a 32-lead LFCSP_WQ package.

APPLICATION

  • Communication infrastructure
  • Networking and servers
  • Industrial and instrumentation
  • Healthcare and medical
  • Intermediate power rail conversion
  • DC-to-dc point of load applications
Part Models 1
1ku List Price Starting From $2.90

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADP2323ACPZ-R7
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Product Lifecycle

PCN

Aug 6, 2014

- 13_0230

Assembly and Test Transfer of Select 3.5x3.5, 4x3, 4x4, and 5x5mm LFCSP Products to STATS ChipPAC China

Filter by Model

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Part Models

Product Lifecycle

PCN

Aug 6, 2014

- 13_0230

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Assembly and Test Transfer of Select 3.5x3.5, 4x3, 4x4, and 5x5mm LFCSP Products to STATS ChipPAC China

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

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EVAL-ADP2323

ADP2323 Evaluation Board

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EVAL-ADP2323

ADP2323 Evaluation Board

ADP2323 Evaluation Board

Features and Benefits

  • Input voltage: 4.5 V to 20 V
  • ±1% output voltage accuracy
  • Integrated 90 mΩ typical on-resistance high-side MOSFET
  • Flexible output configuration
    Dual output: 3 A/3 A
    Parallel single output: 6 A
  • Programmable switching frequency: 250 kHz to 1.2 MHz
  • External synchronization input with programmable phase shift, or internal clock output
  • Selectable PWM or PFM mode operation
  • Adjustable current limit for small inductor
  • External compensation and soft start
  • Startup into precharged output

Product Detail

The ADP2323 evaluation board is a complete, dual, 3 A step-down regulator solution that allows users to evaluate the performance of the ADP2323 with a near ideal printed circuit board (PCB) layout.

The two pulse-width modulation (PWM) channels can be configured to deliver dual, 3 A outputs or a parallel-to-single, 6 A output. The switching frequency can be programmed between 250 kHz and 1.2 MHz, or it can be synchronized to an external clock with a programmed 60°, 90°, or 120° phase shift, which provides the possibility for a stackable multiphase power solution.

The outputs of the ADP2323 evaluation board are preset to 1.2 V and 3.3 V for Channel 1 and Channel 2, respectively. With the PWM mode selected, the switching frequency is set to 500 kHz. Different output voltage settings and configurations can be achieved by changing appropriate passive components or jumper settings. The ambient temperature operating range is −40°C to +85°C.

Full details on the ADP2323 dual regulator are provided in the ADP2323 data sheet, available from Analog Devices, Inc., which should be consulted in conjunction with this user guide.

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AD-FMCOMMS1-EBZ

FPGA Mezzanine Card for Wireless Communications

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AD-FMCOMMS1-EBZ

FPGA Mezzanine Card for Wireless Communications

FPGA Mezzanine Card for Wireless Communications

Features and Benefits

  • Includes schematics, layout, BOM, Gerber files, HDL, Linux® drivers, IIO Oscilloscope, VisualANALOG
  • FMC-compatible form factor
  • Powered from FMC connector
  • Provides one channel of ADC and one channel of DAC with full synchronization capabilities

Product Detail

This board is no longer available for ordering.

The AD-FMCOMMS1-EBZ high-speed analog module is designed to showcase the latest generation high-speed data converters. The AD-FMCOMMS1-EBZ provides the analog front-end for a wide range of compute-intensive FPGA-based radio applications.

The AD-FMCOMMS1-EBZ is an analog front end hardware platform that addresses a broad range of research, academic, industrial and defense applications. The AD-FMCOMMS1-EBZ enables RF applications from 400MHz to 4 GHz. The module is customizable to a wide range of frequencies by software without any hardware changes, providing options for GPS or IEEE 1588 Synchronization, and MIMO configurations.

When combined with the Xilinx ZYNQ® Software-Defined Radio Kit, AD-FMCOMMS1-EBZ enables a variety of wireless communications functions at the physical layer, from baseband to RF. With up to 4 GB of flash storage space, 512 MB of RAM, Gigabit Ethernet interface (depending on the base platform) and a Linux image built specifically for the AD-FMCOMMS1-EBZ, you can get everything you need for a easy out of the box experience. The platform offers enough flexibility for many applications, and supports streaming data, and standard web interfaces to analyze transmitted RF data.

Applications

  • Electronic test and measurement equipment
  • General-purpose software radios
  • Radar systems
  • Ultra wideband satellite receivers
  • Point to point communication systems
Tools & Simulations

Tools & Simulations 1

Reference Designs

Reference Designs 1

Portable Radio Reference Design Block Diagram

ADRV-PACKRF Robust Portable Radio Design

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CN0412

ADRV-PACKRF Robust Portable Radio Design

CN0412

Circuits from the lab

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ADRV-PACKRF Robust Portable Radio Design

Features and Benefits

  • Two Complete Radios
    • 2-Tx, 2-Rx, 2-Observation
  • Multiple Power Options
    • Wall Connected, Power over Ethernet, Battery
  • Built in IMU and GPS for tracking
  • Fully configurable and customizable software
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