LT3669IUFD#TRPBF - IO-Link Transceiver with Buck/LDO
料号： LT3669IUFD#TRPBF ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.38 | $5.38 |
| 10 | $5.38 | $53.80 |
| 100 | $5.38 | $538.00 |
| 500 | $5.38 | $2,690.00 |
| 1,000 | $5.38 | $5,380.00 |
LT3669IUFD#TRPBF 概述
An IO-Link transceiver is an interface IC that connects industrial sensors and actuators to a point-to-point communications link. It combines physical-layer signaling with supporting functions that help the connected equipment operate reliably in factory automation, sensors, and industrial control systems. The LT3669 belongs to the transceiver and interface-IC hierarchy, while its integrated regulator sections place it at the intersection of communications, power management, and industrial automation.
The verified manufacturer description identifies a single-transmitter, single-receiver industrial interface with an integrated step-down regulator and LDO. Wake-up detect functionality supports sensor activation, while the programmable power-on reset timer provides a defined startup delay. The transmitter current limit and slew rate are externally adjustable, allowing the interface behavior to be matched to the wiring, capacitance, and protection requirements of a particular sensor or actuator.
Combining the IO-Link physical interface, switching regulator, and LDO can reduce the number of discrete power-support components in a compact sensor design. It is particularly relevant where a sensor needs both a communication link and local regulated power. The integrated regulators also require careful layout because switching-node, analog-ground, and exposed-pad connections must be managed according to the manufacturer datasheet.
Typical uses include industrial proximity and process sensors, actuator modules, factory automation equipment, and IO-Link-compatible control systems. The 28-QFN exposed-pad package supports compact placement but requires a controlled PCB land pattern and adequate thermal copper. Design engineers should verify the complete electrical limits, recommended external components, pin names, and application circuit from the official Analog Devices datasheet before production release.
This page consolidates the verified manufacturer and distributor information for the LT3669IUFD#TRPBF, identifies the available family alternatives, and highlights practical package and selection considerations. For pricing, use the listed distributor references as of 2026-10-23 and confirm live stock, lead time, and configuration before purchasing.
直接替换替代料： LT3669IUFD#TRPBF ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： LT3669IUFD#TRPBF （相同外形与封装尺寸） ——差异在于 Package, Transceiver Configuration, Wake-Up Detect, Product Type, Power-On Reset.
快速对比工具——选择替代料号进行并排对比：
LT3669EUFD#TRPBF
✅ 直接替换✓ 有现货
$5.38 / 个
查看数据手册 →LT3669IUFD#PBF
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →LT3669IUFD-2#TRPBF
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →LT3669IUFD-2#PBF
✅ 直接替换✓ 有现货
$5.38 / 个
查看数据手册 →LT3669HUFD-2#TRPBF
✅ 直接替换✓ 有现货
$5.38 / 个
查看数据手册 →LT3669IUFD#TRPBF 规格参数
| Product Type | IO-Link transceiver with integrated step-down regulator and LDO |
| Transceiver Configuration | Single transmitter / single receiver |
| Supply Type | Industrial IO-Link interface |
| 封装 | 28-pin QFN exposed-pad package, 4 mm x 5 mm |
| 安装类型 | Surface mount |
| Integrated Power Functions | Step-down switching regulator and low-dropout linear regulator |
| Wake-Up Detect | Supported |
| Power-On Reset | Programmable timer |
| Transmitter Current Limit | Externally adjustable |
| Transmitter Slew Rate | Externally adjustable |
| Interface Category | IO-Link industrial transceiver |
| Manufacturer | Analog Devices |
| Product Family | LT3669 |
| Package Family | QFN exposed-pad family |
| RoHS 状态 | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | unknown |
LT3669IUFD#TRPBF qfn exposed-pad family 引脚配置指南
LT3669IUFD#TRPBF（qfn exposed-pad family 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： LT3669IUFD#TRPBF.
请参阅 数据手册 以查看完整引脚配置。
典型应用
LT3669IUFD#TRPBF 适用于 6 应用s: Industrial Proximity Sensors, Factory Automation Actuators, Process and Environment Monitoring, IO-Link Sensor Interface Modules, Industrial Control Sensor Nodes, Compact Industrial Sensor Controllers.
Industrial Proximity Sensors
The LT3669IUFD#TRPBF fits IO-Link proximity and inductive-style sensor modules because it combines a single-transmitter, single-receiver interface with local power-regulation functions. Wake-up detection can help coordinate sensor activation, while the programmable power-on reset timer allows startup to be delayed according to the application circuit. The 28-QFN exposed-pad package keeps the assembly compact for small industrial sensor housings. Designers should place the interface and protection components according to the official Analog Devices land pattern and verify the cable-length, current, and timing limits in the datasheet.
推荐
Factory Automation Actuators
For actuator modules that need both a wired IO-Link communication path and regulated local power, the LT3669IUFD#TRPBF consolidates an industrial transceiver, step-down regulator, and LDO in one device. The externally adjustable transmitter current limit and slew rate provide implementation variables for matching the physical layer to the connected cable and protection network. Its compact 28-QFN exposed-pad package is useful where actuator electronics share limited board area. Confirm voltage limits, regulator output settings, and thermal requirements in the manufacturer datasheet before fixing the external component values.
推荐
Process and Environment Monitoring
The LT3669IUFD#TRPBF is suitable for remote process-monitoring equipment that uses IO-Link communication and requires local power management in a compact assembly. Wake-up detect functionality can support periodic sensor interrogation, while the programmable power-on reset timer helps control initialization after power restoration. The integrated regulator sections may reduce the need for separate local power components, but external filtering, decoupling, and protection remain application-specific. Use the official datasheet’s recommended circuit and layout rather than assuming that adjacent industrial devices can share the same supply network.
推荐
IO-Link Sensor Interface Modules
The LT3669IUFD#TRPBF directly addresses compact IO-Link sensor interface modules by combining the communications transceiver with step-down and LDO functions. This can simplify the power architecture when the sensor requires both communication and regulated auxiliary power. The device’s single-transmitter, single-receiver arrangement matches point-to-point industrial sensor links, while adjustable transmitter current limit and slew rate allow board-level tuning. Before release, verify the cable and connector protection scheme, startup timing, and all regulator limits against the official Analog Devices datasheet.
推荐
Industrial Control Sensor Nodes
In distributed sensor nodes, the LT3669IUFD#TRPBF provides a dedicated IO-Link physical interface plus integrated regulator functions, helping constrain board size and component count. The wake-up detector can be used when a node needs controlled wake behavior, and the power-on reset timer provides a programmable startup delay for downstream circuitry. The compact 28-QFN exposed-pad package still requires careful thermal and electrical layout, especially when the step-down regulator operates near its verified limits. Obtain the missing current, voltage, temperature, and timing values from the manufacturer datasheet.
推荐
Compact Industrial Sensor Controllers
The LT3669IUFD#TRPBF is appropriate for compact controllers that must communicate over IO-Link and provide local regulated power without relying on multiple separate power ICs. Its integrated step-down switching regulator and LDO create a single multifunction device, while programmable reset timing helps coordinate downstream logic startup. The 4 mm by 5 mm QFN exposed-pad package supports space-constrained designs but requires a land pattern and thermal path designed exactly to the datasheet recommendation. Do not finalize external components until the complete electrical limits are verified.
推荐
推荐产品汇总
工程参考数据： LT3669IUFD#TRPBF ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | LT3669EUFD#TRPBF | LT3669IUFD#PBF | LT3669IUFD-2#TRPBF | LT3669IUFD-2#PBF | LT3669HUFD-2#TRPBF |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 28-QFN exposed-pad package (4x5 mm) | 28-QFN exposed-pad package (4x5 mm) | 28-QFN exposed-pad package (4x5 mm) | 28-QFN exposed-pad package (4x5 mm) | 28-QFN exposed-pad package (4x5 mm) | 28-QFN exposed-pad package (4x5 mm) |
| Interface Type | IO-Link transceiver | IO-Link transceiver | IO-Link transceiver | IO-Link transceiver | IO-Link transceiver | IO-Link transceiver |
| Transceiver Configuration | Single transmitter / single receiver | Single transmitter / single receiver | Single transmitter / single receiver | Single transmitter / single receiver | Single transmitter / single receiver | Single transmitter / single receiver |
| Integrated Power Functions | Step-down switching regulator and LDO | Step-down switching regulator and LDO | Step-down switching regulator and LDO | Step-down switching regulator and LDO | Step-down switching regulator and LDO | Step-down switching regulator and LDO |
| Wake-Up Detection | Supported | Supported | Supported | Supported | Supported | Supported |
| Power-On Reset | Programmable timer | Programmable timer | Programmable timer | Programmable timer | Programmable timer | Programmable timer |
关键差异点
- Integrated communications and local power functions （对比 LT3669IUFD-2#TRPBF)
- Compact 28-QFN exposed-pad integration （对比 LT3669EUFD#TRPBF)
- Startup and wake behavior integrated into the interface IC （对比 LT3669IUFD#PBF)
设计说明
Use the exact 28-QFN exposed-pad land pattern and pin numbering from the official Analog Devices datasheet. Keep the IO-Link interface traces short, place the required protection and filter components at the connector or sensor boundary, and route the exposed pad to the prescribed thermal copper. Do not substitute a generic QFN footprint without checking the exposed-pad dimensions and paste mask.
The LT3669 combines a step-down switching regulator and an LDO, so its power architecture must be designed as a complete system rather than as an IO-Link-only transceiver. Verify the input range, regulator output limits, current capability, efficiency, and external capacitor requirements in the manufacturer datasheet. Check startup sequencing and the programmed power-on reset behavior before connecting loads that may not tolerate an uncontrolled ramp.
Do not assume that every LT3669 suffix is electrically identical. The supplied results identify related LT3669, LT3669-2, package, and ordering variants, but do not provide a complete comparison table. Before substituting a related MPN, compare pin names, exposed-pad treatment, temperature grade, regulator settings, timing, and interface limits against the official ordering information and datasheet.
The QFN exposed pad provides the primary thermal path, but its effectiveness depends on PCB copper, thermal vias, enclosure airflow, and the actual regulator dissipation. The supplied data does not include verified thermal resistance or power-dissipation figures. Use the manufacturer thermal information and calculate worst-case dissipation from the final input voltage, output voltage, load current, and efficiency before defining the copper area or via pattern.
合规信息
Compliance status was not explicitly provided in the verified web snippets. Do not infer RoHS, REACH, automotive qualification, lead-free, halogen-free, or conflict-minerals status from the package or manufacturer identity.
