LTC7106IDDB#TRMPBF Analog Devices Integrated Circuit (Small Outline No-lead) In Stock
The Analog Devices LTC7106IDDB#TRMPBF is a 7-bit current DAC designed to digitally adjust the output voltage of DC-DC power controllers via a PMBus-compatible serial interface. It delivers programmable current output with 2's complement input format and a maximum linearity error of 1.25%, housed in a compact 10-pin DFN package. Suitable for server power modules, telecom power supplies, and FPGA/ASIC core voltage margining applications with digital power management.
- Manufacturer
- Analog Devices
- Package
- Small Outline No-lead
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- LTC7106IDDB#TRMPBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.8980(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC7106IDDB#TRMPBF?
- 7-bit resolution current DAC enables 128-step digital adjustment of DC-DC converter output voltages for precise power margining
- PMBus-compatible serial interface allows SMBus/I2C-based digital power management controllers to program voltage setpoints without analog trimmer adjustments
- 2's complement input format supports bidirectional current output for both voltage up-trim and down-trim in a single device
- Compact 10-pin DFN (3mm x 2mm) package minimizes PCB area in space-constrained server and telecom power modules
- 1.25% maximum linearity error ensures predictable voltage adjustment steps across the full 7-bit code range
What is LTC7106IDDB#TRMPBF used for?
The LTC7106IDDB#TRMPBF is primarily used in digital power management systems where a microcontroller or PMBus controller must dynamically adjust the output voltage of an existing DC-DC regulator without redesigning the analog feedback network. Typical deployment scenarios include server power supplies for CPU/ASIC core voltage margining during bring-up and production test, telecom infrastructure power modules requiring remote voltage adjustment over I2C, and programmable power rails in FPGA development boards where core and I/O voltages must be tuned across a 0.6V to 2.5V range under firmware control.
What are the specifications of LTC7106IDDB#TRMPBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1722 |
| YTEOL | 10 |
| Converter Type | D/A CONVERTER |
| Input Bit Code | 2'S COMPLEMENT |
| Input Format | SERIAL |
| JESD-30 Code | R-PDSO-N10 |
| JESD-609 Code | e3 |
| Linearity Error-Max (EL) | 1.25% |
| Number of Bits | 7 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC10,.08,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Current-Max | 1.4mA |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Where can I find the LTC7106IDDB#TRMPBF datasheet?
LTC7106IDDB#TRMPBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC7106IDDB#TRMPBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many discrete voltage steps can the LTC7106IDDB#TRMPBF program in a DC-DC converter's feedback loop?
With its 7-bit resolution, the LTC7106IDDB#TRMPBF can program 128 discrete current output steps, each step trimming the DC-DC regulator's output voltage by a fixed increment determined by the feedback resistor network. In a typical 1.0V core voltage application, this allows voltage adjustments in increments of approximately 5mV to 10mV per step, enabling fine-grained voltage margining for timing characterization and production screening of CPUs, FPGAs, and ASICs.
What serial interface does the LTC7106IDDB#TRMPBF use, and which microcontrollers or PMBus controllers can drive it?
The LTC7106IDDB#TRMPBF uses a PMBus-compatible serial interface operating on the SMBus/I2C protocol at standard 100kHz or fast-mode 400kHz clock rates. It is directly compatible with PMBus power management controllers from Analog Devices (LTC3880, LTC2978), Texas Instruments (UCD series), and general-purpose microcontrollers with hardware I2C peripherals, including STM32, PIC, and AVR families operating from 2.9V to 5.5V IO supply levels.
When would a designer choose the LTC7106IDDB#TRMPBF over a digitally adjustable LDO regulator for voltage margining?
The LTC7106IDDB#TRMPBF is the better choice when the target power rail must supply more than 1A — far beyond the capability of typical adjustable LDOs (usually 150mA to 500mA) — because it adjusts an existing high-current DC-DC switching regulator rather than replacing it. It adds digital voltage control to regulators already delivering 5A to 100A with efficiencies above 90%, whereas an LDO-based approach would dissipate unacceptable power as heat at those current levels. This makes LTC7106 ideal for CPU VR, GPU power stages, and high-current FPGA rails in blade servers.
How does the 10-pin DFN package of LTC7106IDDB#TRMPBF affect placement near high-current DC-DC converters on server boards?
The 10-pin DFN package measures approximately 3mm x 2mm with a 0.5mm pitch, occupying less than 7mm² of PCB area and enabling placement within 5mm to 10mm of the DC-DC converter's feedback resistor network. This short trace length minimizes injected noise on the feedback node, which is critical when the power stage switches at 300kHz to 1MHz and the current DAC output must remain stable to within 1.25% linearity. The leadless DFN package also reduces parasitic inductance compared to SOIC or TSSOP alternatives.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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