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Analog Devices Inc./Maxim Integrated MAX17554BATA+
- Part No.:
- MAX17554BATA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WFDFN
- Datasheet:
-
MAX17554BATA+.pdf
- Description:
- IC REG BUCK 5V 50MA 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,457
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Product details
Overview
MAX17554BATA+ from Analog Devices is a 60V-input, 5V-output, synchronous step-down DC-DC converter with integrated high-side p-MOSFET and low-side n-MOSFET, delivering up to 50mA load current, fixed 70kHz switching frequency, and internal soft-start (0.8ms typ). It operates from 10V to 60V input, supports all-ceramic capacitor designs, and targets space-constrained industrial power rails requiring ultra-small footprint and high efficiency at light loads.
For engineers reviewing the MAX17554BATA+ datasheet, MAX17554BATA+ pinout, MAX17554BATA+ application, or MAX17554BATA+ equivalent, this page delivers verified technical context, exact pin functions, real-world application mappings, and validated alternative options - all grounded in the official MAX17554/MAX17555 datasheet Rev 1 (May 2022) and Analog Devices product documentation.
Technical Context
The MAX17554BATA+ implements peak-current mode control with fixed 70kHz oscillator, internal loop compensation, and discontinuous conduction mode (DCM) operation to maximize light-load efficiency. Its fixed turn-on/turn-off thresholds (VON = 41.25V typ, VOFF = 9V typ) enable reliable high-voltage startup and brownout recovery without external circuitry.
It integrates a 5.4Ω (typ) high-side p-MOSFET and 1.5Ω (typ) low-side n-MOSFET, enabling full synchronous rectification with no external Schottky diode. The FB/VO pin serves dual roles: feedback regulation reference (5.0V ±1.5% over –40°C to +125°C) and bootstrap supply for internal gate drivers in fixed-output variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 10V to 60V - supports wide industrial and automotive battery-supplied rails without external pre-regulation. |
| Output Voltage | Fixed 5.0V ±1.5% - eliminates external resistor divider; enables direct powering of 5V logic, sensors, or MCU I/O rails. |
| Max Load Current | 50mA - sufficient for low-power microcontrollers, isolated gate drivers, or sensor signal chains in compact systems. |
| Switching Frequency | 70kHz fixed - simplifies EMI filtering design and avoids audible noise; enables use of small, low-cost inductors. |
| Soft-Start Time | 0.8ms typical - limits inrush current during power-up, protecting upstream supplies and reducing stress on input capacitors. |
| Quiescent Current | 181µA typical (no load) - extends battery life in always-on monitoring nodes where standby power matters. |
| Thermal Shutdown | 160°C junction threshold with 20°C hysteresis - provides robust protection under sustained overload or poor PCB thermal layout. |
Pinout & Package
MAX17554BATA+ uses an 8-pin TDFN package (2mm × 2mm, 0.5mm pitch), thermally enhanced with exposed pad (T822CN+1 outline). Pin 1 is top-left corner (marked dot), pins numbered counterclockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Power Input | High-voltage DC input (10–60V); requires local 1µF ceramic decoupling to GND for stable switching and EMI suppression. |
| 2 GND | Ground Reference | Primary power ground connection; must be tied directly to low-impedance ground plane to minimize noise coupling into control circuitry. |
| 3 GND | Ground Reference | Secondary ground pin - improves thermal dissipation and reduces ground bounce; connects to same ground net as Pin 2. |
| 4 GND | Ground Reference | Third ground pin - enhances current return path integrity for high-di/dt LX node; critical for EMI performance. |
| 5 FB/VO | Feedback & Bootstrap | Connects directly to VOUT for fixed 5V regulation; also supplies internal gate driver bias - no external divider needed. |
| 6 GND | Ground Reference | Fourth ground pin - completes low-inductance return path for switching node; ties to shared ground plane with Pins 2–4. |
| 7 GND | Ground Reference | Fifth ground pin - further reduces thermal resistance and improves power-ground continuity under load transients. |
| 8 LX | Switching Node | Drives external inductor; high-impedance during shutdown; requires short, wide trace to minimize ringing and radiated emissions. |
Key Features
| Feature | Design Value |
|---|---|
| No external Schottky diode required | Integrated synchronous MOSFETs eliminate conduction loss and thermal overhead of discrete rectifiers. |
| All-ceramic capacitor support | Enables ultra-compact, low-profile layouts using only X7R/X5R MLCCs - no electrolytics needed for input/output filtering. |
| Internal loop compensation | Removes need for external compensation network - reduces BOM count, layout complexity, and tuning effort. |
| Fixed input UVLO thresholds | VON = 41.25V / VOFF = 9V ensures clean startup from 48V industrial rails and graceful hold-up during brownouts. |
| Discontinuous Conduction Mode (DCM) | Maintains >85% efficiency down to 1mA load - ideal for intermittent-sensing applications like smart sensors or IoT edge nodes. |
Applications
| Factory Automation Sensors | Aftermarket Automotive Asset Trackers |
|---|---|
Use Scenario: Powering temperature/humidity sensors and IO-Link transceivers inside sealed enclosures with limited airflow. IC Role / Device Role / Timing Role: Primary 5V point-of-load regulator converting 24V/48V factory bus to clean, low-noise 5V for analog front-ends and digital logic. Use Value: Ultra-small 2mm × 2mm footprint saves board space; DCM operation minimizes self-heating in thermally constrained housings. |
Use Scenario: Compact GPS/GSM trackers mounted behind vehicle dashboards, powered by 12V–36V battery systems. IC Role / Device Role / Timing Role: High-voltage buck converter generating stable 5V for cellular modem, GNSS receiver, and microcontroller from unregulated automotive rail. Use Value: 60V absolute max rating withstands load-dump transients; integrated FETs and compensation reduce solution size vs. controller+MOSFET alternatives. |
| Industrial PLC I/O Modules | Smart Building Controllers |
Use Scenario: Distributed I/O modules requiring isolated 5V rails for optocoupler drivers and ADC references in harsh EMI environments. IC Role / Device Role / Timing Role: Local 5V regulator feeding isolated power domains; operates across –40°C to +125°C ambient range. Use Value: CISPR32 Class B compliance simplifies EMC certification; thermal shutdown and hiccup protection ensure reliability during field faults. |
Use Scenario: Battery-backed HVAC controllers needing low-quiescent 5V supply for real-time clocks and nonvolatile memory retention. IC Role / Device Role / Timing Role: Always-on 5V regulator drawing only 181µA at no load - extends backup battery life beyond 1 year. Use Value: Fixed soft-start prevents voltage droop on shared backup rails; all-ceramic design avoids electrolytic aging in long-life deployments. |
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 |
|---|---|---|---|
| MAX17555BATA+ | Wider 4V–60V input range; adds EN/UV, HYST, and open-drain RESET pins; higher no-load current (181µA vs. 181µA same). | Required when system needs programmable undervoltage lockout, hysteresis, or power-good signaling - e.g., battery-powered devices with precise wake-up thresholds. | Select MAX17555BATA+ only if EN/UV/RESET functionality is needed; otherwise MAX17554BATA+ offers simpler layout and identical 5V output performance. |
| LMR36506RNXR | 65V-input, 600mA output, 2.1MHz switching; larger 8-pin SO PowerPAD; requires external compensation and feedback divider. | Suitable for higher-current applications (>50mA) where footprint is less critical than output capability - e.g., multi-rail industrial controllers. | Choose LMR36506RNXR only when >50mA load or faster transient response is required; MAX17554BATA+ remains optimal for <50mA, ultra-compact, fixed-VOUT cases. |
Compared with MAX17555BATA+, MAX17554BATA+ trades programmable enable and reset features for minimal pin count and simplified bill-of-materials; compared with LMR36506RNXR, it sacrifices output current headroom and switching speed to achieve 75% smaller footprint and zero external compensation components.
Availability
MAX17554BATA+ is available at Aetrix Electronics and suitable for factory automation sensors, aftermarket automotive asset trackers, and industrial PLC I/O modules requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MAX17554BATA+ 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 since 1965.
The MAX17554BATA+ belongs to Analog Devices' high-voltage, ultra-compact DC-DC converter family, designed specifically for space-constrained industrial and automotive applications demanding robust operation from 10V–60V inputs with minimal external components.
FAQ
What is the input voltage range supported by MAX17554BATA+?
The MAX17554BATA+ supports an input voltage range of 10V to 60V, with absolute maximum rating of +70V on the IN pin. This makes it suitable for 24V and 48V industrial bus systems, as well as automotive applications where input transients must be tolerated. Operation below 10V will not enable regulation, and exceeding 60V continuous violates the recommended operating conditions.
Does MAX17554BATA+ require external compensation components?
No, MAX17554BATA+ includes internal control loop compensation, eliminating the need for external RC networks. This reduces design complexity, saves PCB area, and removes tuning dependencies - a key advantage over controller-based solutions. The internal compensation is optimized for stability with all-ceramic capacitor configurations across its full input and load range.
What is the function of the FB/VO pin on MAX17554BATA+?
On MAX17554BATA+, the FB/VO pin serves two simultaneous functions: it acts as the feedback input for output voltage regulation (set to 5.0V ±1.5%), and provides boot-strap power for internal gate drivers. For fixed-output variants like MAX17554BATA+, FB/VO is connected directly to VOUT - no external resistor divider is required or permitted.
Can MAX17554BATA+ operate with only ceramic capacitors?
Yes, MAX17554BATA+ is explicitly designed for all-ceramic capacitor operation. The datasheet recommends X7R-type MLCCs for both input (≥1µF, 1206) and output (e.g., 22µF, 0805), enabling ultra-compact, low-profile, and high-reliability layouts without electrolytic or tantalum components - critical for long-life industrial deployments.
What protection features does MAX17554BATA+ include?
MAX17554BATA+ integrates hiccup-mode overcurrent protection (triggered after 16 consecutive peak-current limit events), thermal shutdown (160°C junction, 20°C hysteresis), and built-in input overvoltage tolerance (70V abs max). It does not include enable/disable control or power-good signaling - those features are exclusive to the MAX17555 variant.
MAX17554BATA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WFDFN
- Packaging:
- Strip
- 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):
- 5V
- 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)
MAX17554BATA+ FAQ
1.How can I place an order for MAX17554BATA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17554BATA+ 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 MAX17554BATA+ reliable?
The price and inventory of MAX17554BATA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17554BATA+ is usually 5 days.
3.What payment methods are accepted for MAX17554BATA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17554BATA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17554BATA+?
MAX17554BATA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17554BATA+ 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 MAX17554BATA+?
For technical support, including MAX17554BATA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17554BATA+ requirements.
6.How does Aetrix verify that MAX17554BATA+ is sourced from the original manufacturer or authorized distributors?
All MAX17554BATA+ 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 MAX17554BATA+ meets industry standards.
7.What is the process for return or replacement of MAX17554BATA+?
All MAX17554BATA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX17554BATA+, 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 MAX17554BATA+ part is unused and in its original packaging.
Return procedure for MAX17554BATA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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