Features and Benefits
- Low Noise Silent Switcher® Architecture
- CISPR 22 Class B Compliance
- Wide Input Voltage Range: 3.2V to 40V
- Wide Output Voltage Range: 0.8V to 12V
- 1.2A Continuous Output Current at 24VIN, 5VOUT, TA = 85°C
- 1.75A Peak Output Current at 3.3VOUT
- Selectable Switching Frequency: 200kHz to 2.2MHz
- External Synchronization
- Configurable as an Inverter
- 4mm × 4mm × 1.82mm BGA Package
The LTM®8074 is a 40VIN, 1.2A continuous, 1.75A peak, step-down µModule® (power module) regulator. The Silent Switcher architecture minimizes EMI while delivering high efficiency at frequencies up to 2.2MHz. Included in the package are the switching controller, power switches, inductor, and all support components. Operating over an input voltage range of 3.2V to 40V, the LTM8074 supports an output voltage range of 0.8V to 12V and a switching frequency range of 200kHz to 2.2MHz, each set by a single resistor. Only the input and output filter capacitors are needed to finish the design.
The low profile package enables utilization of unused space on the bottom of PC boards for high density point of load regulation. The LTM8074 is packaged in a thermally enhanced, compact over-molded ball grid array (BGA) package suitable for automated assembly by standard surface mount equipment. The LTM8074 is RoHS compliant.
- Automotive Battery Regulation
- Power for Portable Products
- Distributed Supply Regulation
- Industrial Supplies
- Wall Transformer Regulation
Markets and Technologies
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (2)
The AD9208-3000EBZ supports the AD9208-3000, a 14-bit, 3GSPS dual analog-to-digital converter (ADC). The device has an on-chip buffer and a sample-and-hold circuit designed for low power, small size, and ease of use. This device is designed support direct RF sampling analog signals of up to 5 GHz. The 3 dB bandwidth of the ADC input is greater than 9 GHz. The AD9208 is optimized for wide input bandwidth, high sampling rate, excellent linearity, and low power in a small package.
This reference design provides all of the support circuitry required to operate the ADC in its various modes and configurations. It is designed to interface directly with the ADS7-V2EBZ data capture card, allowing users to download captured data for analysis. The device control and subsequent data analyses can now be done using the ACE software package.
The AD9208-DUAL-EBZ is a demonstration board designed to show multi-chip synchronization using JESD204B subclass1 protocol. The AD9208-3000 is a 14-bit, 3GSPS dual analog-to-digital converter (ADC). This device is designed support direct RF sampling analog signals of up to 5 GHz. The 3 dB bandwidth of the ADC input is greater than 9 GHz. The AD9208 is optimized for wide input bandwidth, high sampling rate, excellent linearity, and low power in a small package. The HMC7044 is a high performance, dual-loop, integer-N jitter attenuator capable of performing reference selection and generation of ultralow phase noise frequencies for high speed data converters with either parallel or serial (JESD204B type) interfaces. The LTM8074 is a 40VIN, 1.2A continuous, 1.75A peak, step-down µModule® (power module) regulator. The Silent Switcher architecture minimizes EMI while delivering high efficiency at frequencies up to 2.2MHz.
This reference design provides all of the support circuitry required to operate the ADC in its various modes and configurations. It is designed to easily demonstrate multi-chip synchronization using the JESD204B subclass1 protocol. The board is designed to interface directly with FPGA development boards with FMC+ (Vita57.4) connector.
Features & Benefits
Two evaluation options are available: AD9208-3000EBZ and AD9208-DUAL-EBZ.
- AD9208-3000 Features
- Full featured evaluation board for the AD9208-3000.
- Wide band Balun driven input.
- No external supply needed. Uses 12V-1A and 3.3V-3A supplies from FMC connector.
- Single software interface for device control and analysis through ACE.
- AD9208-DUAL Features
- Demonstration board showing multi-chip synchronization of two AD9208 ADCs using HMC7044.
- Self contained clocking for the ADCs as well as the FPGA.
- Single external 12V supply.
- Interfaces with VCU118 or similar FPGA development board with FMC+ (Vita57.4) connector.
- Uses Analog Devices’ JESD204B IP framework.
- Low SWaP high efficiency power delivery using Silent Switcher technology.
- Full software support available Analog Devices Wiki Page.
Demonstration circuit 2753A features the LTM8074EY µModule regulator, a tiny high performance high efficiency step-down regulator with Silent Switcher® architecture. DC2753A has an operating input voltage range of 3.4V to 40V and is able to provide an output current of up to 1.2A. The output voltage can be programmed from 0.78V up to 15V. The LTM8074EY is a complete DC/DC point of load regulator in a thermally enhanced 4mm × 4mm × 1.82mm BGA package requiring only a few input and output capacitors.
The radiated EMI performances of the board (with EMI filter) are shown in Figure 6 and Figure 7. The demo board also has a conducted EMI filter installed. To use the conducted EMI filter, the input should be tied to VEMI, not VIN. An inductor L2, which is a 0Ω jumper on the board by default now, can be added in the EMI filter to further reduce the conducted emission.
The LTM8074 data sheet must be read in conjunction with this demo manual for working on or modifying DC2753A.
Tools & Simulations
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Models for the following parts are available in LTspice:
LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.
Design tools for the following parts are available in LTpowerCAD:
Product Selection Guide (1)
Rarely Asked Questions (1)
Technical Articles (4)
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.
Sample & Buy
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.