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Analog Devices Inc./Maxim Integrated MAX17554AATA+T
- Part No.:
- MAX17554AATA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WFDFN
- Datasheet:
-
MAX17554AATA+T.pdf
- Description:
- IC REG BUCK 3.3V 50MA 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,512
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Product details
Overview
MAX17554AATA+T from Analog Devices is a 60V-input, 3.3V fixed-output, synchronous step-down DC-DC converter in an 8-pin TDFN (2mm × 2mm) package, delivering up to 50mA load current with 70kHz fixed switching frequency, internal loop compensation, and 10V–60V input range - designed for space-constrained industrial point-of-load and factory automation power rails.
For engineers reviewing the MAX17554AATA+T datasheet, MAX17554AATA+T pinout, MAX17554AATA+T application, or MAX17554AATA+T equivalent, this page delivers verified technical context, exact pin functions, real-world application cards, confirmed alternatives, and supply-ready availability details - all grounded in the official MAX17554/MAX17555 datasheet Rev 1 (May 2022).
Technical Context
The MAX17554AATA+T implements peak-current mode control with integrated high-side p-MOSFET (RDS-ONH = 5.4Ω typ) and low-side n-MOSFET (RDS-ONL = 1.5Ω typ), operating in discontinuous conduction mode (DCM) for high light-load efficiency. It features fixed 0.8ms soft-start, built-in hiccup-mode overload protection (64ms timeout), and thermal shutdown at +160°C (20°C hysteresis).
Unlike the MAX17555 series, the MAX17554AATA+T uses fixed turn-on/turn-off thresholds (VON = 41.25V typ, VOFF = 9V typ) instead of programmable EN/UV and HYST pins - simplifying design for high-input-voltage applications where automatic brown-in/brown-out control is not required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 10V to 60V - supports wide industrial input rails including 12V, 24V, and 48V systems without external pre-regulation. |
| Output Voltage | Fixed 3.3V ±1.5% over –40°C to +125°C - eliminates external feedback resistors and ensures stable logic-level rail generation. |
| Max Load Current | 50mA - sufficient for powering microcontrollers, sensors, and interface ICs in low-power embedded nodes. |
| Switching Frequency | Fixed 70kHz - enables predictable EMI filtering and simplifies inductor selection with minimal layout sensitivity. |
| Quiescent Current | 146µA (no load) - extends battery life in always-on monitoring circuits and reduces standby power loss. |
| Package | 8-pin TDFN, 2mm × 2mm - ultra-compact footprint ideal for PCB area-constrained modules like IoT edge nodes and PLC I/O terminals. |
| Operating Temperature | –40°C to +125°C ambient - qualified for harsh industrial environments including factory floors and outdoor enclosures. |
Pinout & Package
Package: 8-pin TDFN (2mm × 2mm), RoHS-compliant, thermal pad exposed on bottom (θJA = 162°C/W on 4-layer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Power Input | High-voltage input (10–60V); requires local 1µF ceramic decoupling to GND for noise suppression and stability. |
| 2 GND | Ground Reference | Primary ground connection; must be tied directly to low-impedance power ground plane near IN and LX pins. |
| 3 GND | Ground Reference | Secondary ground terminal - improves thermal dissipation and reduces ground bounce in high-dI/dt switching. |
| 4 GND | Ground Reference | Third ground terminal - enhances layout robustness by distributing return current paths across multiple pins. |
| 5 FB/VO | Feedback & Bootstrap Node | Connects directly to VOUT for fixed 3.3V regulation; also supplies internal bias via bootstrapping - no external divider needed. |
| 6 GND | Ground Reference | Fourth ground pin - critical for minimizing switching node (LX) loop inductance and EMI radiation. |
| 7 GND | Ground Reference | Fifth ground pin - completes low-inductance return path for LX current during low-side conduction. |
| 8 LX | Switching Node | Drives external inductor; high-impedance during shutdown; requires short, wide trace to minimize voltage spikes and ringing. |
Key Features
| Feature | Design Value |
|---|---|
| No external Schottky diode required | Synchronous rectification with integrated MOSFETs eliminates conduction loss and heat buildup - enabling all-ceramic capacitor designs. |
| Internal control loop compensation | Removes need for external compensation network - reduces BOM count, saves PCB area, and guarantees stability across full temperature range. |
| Fixed 0.8ms soft-start | Prevents input inrush current and output overshoot during power-up - essential for reliable cold-start in multi-rail systems. |
| All-ceramic capacitor support | Enables compact, low-profile layouts using only X7R/X5R MLCCs - avoids electrolytic bulk capacitors and improves long-term reliability. |
| Hiccup-mode overload protection | Automatically suspends switching for 64ms upon repeated overcurrent events - limits power dissipation and prevents thermal runaway under short-circuit conditions. |
Applications
| Factory Automation Sensors | Aftermarket Automotive Asset Trackers |
|---|---|
|
Use Scenario: Powering isolated analog sensor front-ends (e.g., 4–20mA transmitters, RTD interfaces) in PLC I/O modules operating from 24V DC bus. IC Role / Device Role / Timing Role: Primary 3.3V point-of-load regulator supplying ADC reference, op-amps, and microcontroller peripherals. Use Value: Ultra-small 2mm × 2mm footprint and -40°C to +125°C operation enable direct mounting on sensor daughterboards inside sealed enclosures. |
Use Scenario: Compact GPS/GNSS + cellular telemetry units mounted in vehicle OBD-II ports or under-hood locations. IC Role / Device Role / Timing Role: Secondary 3.3V rail generator from 12V automotive battery, supporting MCU, GNSS receiver, and LTE modem logic. Use Value: 10V–60V input range tolerates cold-crank dips and load-dump transients; synchronous design minimizes heat in thermally restricted plastic housings. |
| Industrial IoT Edge Nodes | Programmable Logic Controller (PLC) Auxiliary Rails |
|
Use Scenario: Battery-backed wireless sensor nodes deployed in remote infrastructure monitoring (e.g., water meters, smart grid endpoints). IC Role / Device Role / Timing Role: Efficient 3.3V supply for ultra-low-power MCU (e.g., ARM Cortex-M0+) and sub-GHz RF transceiver during active transmission bursts. Use Value: 146µA quiescent current and DCM operation extend battery life; fixed-frequency switching simplifies coexistence with narrowband radio bands. |
Use Scenario: Generating clean 3.3V logic rail for FPGA configuration memory, communication PHYs (RS-485, CAN), and digital I/O drivers in modular PLC backplanes. IC Role / Device Role / Timing Role: Isolated auxiliary DC-DC stage decoupled from main 5V/24V system rails to prevent noise coupling into sensitive logic. Use Value: CISPR32 Class B compliance ensures EMC certification without added shielding; integrated FETs eliminate gate-drive timing mismatches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17555AATA+T | Wider 4V–60V input range; adds EN/UV, HYST, and open-drain RESET pins; higher no-load current (181µA). | Required when input undervoltage lockout or power-good signaling is needed - e.g., battery-powered systems with variable VIN. | Select MAX17555AATA+T only if programmable enable/hysteresis or RESET monitoring is mandatory; otherwise MAX17554AATA+T offers simpler layout and lower IQ. |
| TPS560200DBVR | Lower 4.5V–17V input range; 600mA output; 1.2MHz switching; SOT-23-6 package; no internal compensation. | Suitable for low-voltage, high-current applications (e.g., USB-powered devices), but incompatible with >17V inputs or ultra-low-IQ requirements. | Choose TPS560200DBVR only for <17V systems needing >50mA; MAX17554AATA+T remains sole option for 10–60V, 50mA, ultra-small, fully integrated solutions. |
Compared with MAX17555AATA+T, the MAX17554AATA+T trades programmability for lower quiescent current and simplified pinout; compared with TPS560200DBVR, it uniquely supports high-input-voltage industrial rails while maintaining sub-2mm² footprint and zero external compensation.
Availability
MAX17554AATA+T is available at Aetrix Electronics and suitable for factory automation sensors, aftermarket automotive asset trackers, industrial IoT edge nodes, programmable logic controller auxiliary rails, and general-purpose high-voltage point-of-load applications requiring stable component supply across extended temperature ranges.
Supply support for MAX17554AATA+T 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 semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX17554AATA+T belongs to Analog Devices' high-voltage, ultra-compact DC-DC converter product line - engineered specifically for industrial point-of-load regulation where wide input range, small size, and robust thermal/EMI performance are critical.
FAQ
What is the input voltage range supported by the MAX17554AATA+T?
The MAX17554AATA+T supports a 10V to 60V input voltage range, making it suitable for industrial 24V and 48V systems, as well as applications with wide input variations such as factory automation equipment and automotive aftermarket devices. This range excludes operation below 10V - unlike the MAX17555 variant, which starts at 4V.
Does the MAX17554AATA+T require external compensation components?
No, the MAX17554AATA+T includes internal control loop compensation, eliminating the need for external RC networks. This simplifies design, reduces bill-of-materials cost, and guarantees stability across its full operating temperature range (–40°C to +125°C ambient) and load conditions without tuning.
What output voltage does the MAX17554AATA+T deliver, and how accurate is it?
The MAX17554AATA+T delivers a fixed 3.3V output with ±1.5% regulation accuracy over the full –40°C to +125°C ambient temperature range. This precision is achieved using an internal 0.8V reference and trimmed feedback circuitry - no external resistors are required for voltage setting.
Can the MAX17554AATA+T be used in applications requiring power-good signaling?
No, the MAX17554AATA+T does not include a RESET output or any dedicated power-good signaling capability. That function is exclusive to the MAX17555 series (e.g., MAX17555AATA+T). For applications needing output voltage status monitoring, the MAX17555AATA+T or an external supervisor IC must be used.
What package type and thermal characteristics does the MAX17554AATA+T have?
The MAX17554AATA+T is housed in an 8-pin TDFN package measuring 2mm × 2mm with an exposed thermal pad. Its junction-to-ambient thermal resistance (θJA) is 162°C/W on a standard 4-layer PCB, and it features thermal shutdown at +160°C with 20°C hysteresis - ensuring safe operation under sustained 50mA loads in industrial environments.
MAX17554AATA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 10V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 50mA
- Frequency - Switching:
- 70kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x2)
MAX17554AATA+T FAQ
1.How can I place an order for MAX17554AATA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17554AATA+T 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 MAX17554AATA+T reliable?
The price and inventory of MAX17554AATA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17554AATA+T is usually 5 days.
3.What payment methods are accepted for MAX17554AATA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17554AATA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17554AATA+T?
MAX17554AATA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17554AATA+T 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 MAX17554AATA+T?
For technical support, including MAX17554AATA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17554AATA+T requirements.
6.How does Aetrix verify that MAX17554AATA+T is sourced from the original manufacturer or authorized distributors?
All MAX17554AATA+T 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 MAX17554AATA+T meets industry standards.
7.What is the process for return or replacement of MAX17554AATA+T?
All MAX17554AATA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX17554AATA+T, 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 MAX17554AATA+T part is unused and in its original packaging.
Return procedure for MAX17554AATA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX17554AATA+T Tags
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