My Inquiry
My Account
Analog Devices Inc. EVAL-LT7171-1-AZ
- Part No.:
- EVAL-LT7171-1-AZ
- Manufacturer:
- Analog Devices Inc.
- Package:
- Datasheet:
-
EVAL-LT7171-1-AZ.pdf
- Description:
- EVAL BOARD FOR LT71711
- Quantity:
- Payment:
- Shipping:
Inventory:3,295
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
EVAL-LT7171-1-AZ from Analog Devices is an evaluation board for the LT7171-1 dual-phase monolithic synchronous step-down regulator, configured with two LT7171-1 ICs to deliver up to 40A at 1.0V output from a 2.9V–16V input. It features Silent Switcher® architecture for low EMI, digital power system management via PMBus/I²C, and default NVM-based startup without host communication.
For engineers reviewing the EVAL-LT7171-1-AZ datasheet, EVAL-LT7171-1-AZ setup procedure, EVAL-LT7171-1-AZ GUI configuration, or EVAL-LT7171-1-AZ parallel operation capability, this board enables rapid validation of high-current, digitally managed PolyPhase buck conversion in server, telecom, and FPGA power applications.
Technical Context
The EVAL-LT7171-1-AZ implements a dual-IC, four-phase interleaved topology using two LT7171-1 regulators in parallel, each operating at 1MHz switching frequency with valley current-mode control and 25ns minimum on-time. It supports full digital telemetry-including voltage, current, temperature, and fault status-via the LTpowerPlay® GUI and DC1613A dongle over PMBus/I²C.
Board-level features include dedicated sense turrets (VSENSE+, VSENSE−), input/output ripple measurement points (J6), configurable load transient circuitry, and reserved footprints for up to four LT7171-1 ICs. Power-up defaults are stored in NVM and support three programming cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.9V to 16V - Supports wide-input industrial and telecom rails; limited by LTC4413 RUN/VPULLUP circuitry |
| Output Voltage | 1.0V ±0.25% - Factory-configured fixed output; programmable from 0.5V to 3.3V via PMBus |
| Max Continuous Output | 40A - Achieved with two LT7171-1 ICs in 4-phase interleaved operation |
| Switching Frequency | 1MHz (0.925–1.075MHz typ.) - Enables compact magnetics and fast transient response |
| Control Architecture | Valley current-mode with controlled on-time - Delivers stable regulation at low duty cycles and high frequencies |
| Digital Interface | PMBus v1.3 / I²C - Enables real-time reconfiguration, telemetry readback, and NVM storage of settings |
| EMI Performance | Silent Switcher® integrated - Reduces PCB layout sensitivity and simplifies EMI filtering |
Availability
EVAL-LT7171-1-AZ is available at Aetrix Electronics and suitable for server CPU/GPU power delivery, telecom base station POL conversion, FPGA/ASIC core rail evaluation, and high-density DC/DC development requiring stable component supply and full digital power system management validation.
Supply support for EVAL-LT7171-1-AZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, headquartered in Wilmington, MA.
The EVAL-LT7171-1-AZ belongs to Analog Devices' Digital Power System Management (DPSM) evaluation platform family, designed specifically to accelerate adoption of programmable, telemetry-enabled DC/DC regulators in datacenter, communications, and high-reliability embedded systems.
FAQ
What is the primary function of the EVAL-LT7171-1-AZ?
The EVAL-LT7171-1-AZ is a fully assembled and tested evaluation board for the LT7171-1 dual-phase synchronous step-down regulator. It demonstrates 40A output capability at 1.0V, integrates Silent Switcher® EMI reduction, and enables complete digital power system management via PMBus/I²C using the LTpowerPlay® GUI. The EVAL-LT7171-1-AZ ships preconfigured with NVM defaults for immediate power-on evaluation without host interface.
Does the EVAL-LT7171-1-AZ support multi-IC parallel operation beyond two LT7171-1 devices?
Yes, the EVAL-LT7171-1-AZ reserves two additional LT7171-1 footprint locations, enabling up to four ICs in parallel for up to 80A total output. The board includes shared clock (SHARE_CLK), synchronization (SYNC), and phase-interleaving routing. Full implementation details-including timing alignment and current sharing calibration-are specified in the LT7171-1 data sheet, not the EVAL-LT7171-1-AZ user guide.
Which software and hardware are required to configure the EVAL-LT7171-1-AZ digitally?
To configure the EVAL-LT7171-1-AZ digitally, users must install the LTpowerPlay® GUI software and connect the ADI DC1613A USB-to-PMBus/I²C dongle. The software allows real-time register writes (e.g., VOUT_COMMAND, switching frequency, OV/UV limits), telemetry monitoring (voltage, current, temperature), fault log access, and NVM programming. No external microcontroller or custom firmware is needed-the EVAL-LT7171-1-AZ operates autonomously after NVM configuration.
How does the EVAL-LT7171-1-AZ achieve accurate output voltage and efficiency measurements?
The EVAL-LT7171-1-AZ provides dedicated Kelvin sense turrets (VSENSE+, VSENSE−) for precise output voltage feedback and separate input sense turrets (VIN_SENSE, GND) for accurate input voltage measurement. For best output accuracy, R27 and R28 should be populated; for best efficiency accuracy, R58 and R59 only. Oscilloscope ripple measurements require short ground leads or use of J6-long probe grounds introduce significant noise and invalidate EMI performance claims.
Can the EVAL-LT7171-1-AZ operate without connecting to a PC or using LTpowerPlay®?
Yes, the EVAL-LT7171-1-AZ powers up autonomously using factory-programmed NVM settings and delivers 1.0V at up to 40A without any PC connection or serial bus communication. All critical parameters-including output voltage, current limit, and switching frequency-are preloaded. LTpowerPlay® is required only to modify configurations, access telemetry, or update NVM-making the EVAL-LT7171-1-AZ suitable for both quick-start validation and deep digital power system development.
EVAL-LT7171-1-AZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Main Purpose:
- DC/DC, Step Down
- Outputs and Type:
- 1 Non-Isolated Output
- Voltage - Output:
- -
- Current - Output:
- 1V
- Voltage - Input:
- 40A
- Regulator Topology:
- 2.9V ~ 16V
- Frequency - Switching:
- Buck
- Contents:
- 1MHz
- Utilized IC / Part:
- Board(s)
- Power - Output:
- LT7171-1
EVAL-LT7171-1-AZ FAQ
1.How can I place an order for EVAL-LT7171-1-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for EVAL-LT7171-1-AZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for EVAL-LT7171-1-AZ reliable?
The price and inventory of EVAL-LT7171-1-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EVAL-LT7171-1-AZ is usually 5 days.
3.What payment methods are accepted for EVAL-LT7171-1-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EVAL-LT7171-1-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EVAL-LT7171-1-AZ?
EVAL-LT7171-1-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EVAL-LT7171-1-AZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for EVAL-LT7171-1-AZ?
For technical support, including EVAL-LT7171-1-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EVAL-LT7171-1-AZ requirements.
6.How does Aetrix verify that EVAL-LT7171-1-AZ is sourced from the original manufacturer or authorized distributors?
All EVAL-LT7171-1-AZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that EVAL-LT7171-1-AZ meets industry standards.
7.What is the process for return or replacement of EVAL-LT7171-1-AZ?
All EVAL-LT7171-1-AZ units undergo pre-shipment inspection (PSI). If there is an issue with EVAL-LT7171-1-AZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The EVAL-LT7171-1-AZ part is unused and in its original packaging.
Return procedure for EVAL-LT7171-1-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
EVAL-LT7171-1-AZ Tags
-
DFR0571
DFRobot
-
DFR0379
DFRobot
-
DFR0205
DFRobot
-
1385
Adafruit Industries LLC
-
COM-15208
SparkFun Electronics
-
1944
Adafruit Industries LLC
-
2465
Adafruit Industries LLC
-
DC2468A
Analog Devices Inc.
-
DC2841A
Analog Devices Inc.
-
TPS552892EVM-111
Texas Instruments
-
TPS55289EVM-093
Texas Instruments
-
EPC9158
EPC
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
