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Analog Devices Inc./Maxim Integrated MAX17554BATA+T
- Part No.:
- MAX17554BATA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WFDFN
- Datasheet:
-
MAX17554BATA+T.pdf
- Description:
- IC REG BUCK 5V 50MA 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,262
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Product details
Overview
MAX17554BATA+T from Analog Devices is a 60V-input, 5V-fixed-output, synchronous step-down DC-DC converter with integrated high-side p-MOSFET and low-side n-MOSFET, delivering up to 50mA load current, operating from 10V to 60V input, featuring fixed 70kHz switching frequency, internal soft-start (0.8ms typ), and -40°C to +125°C ambient operation. It targets space-constrained industrial power rails requiring ultra-small footprint and high efficiency in factory automation sensors.
For engineers reviewing the MAX17554BATA+T datasheet, MAX17554BATA+T pinout, MAX17554BATA+T application, or MAX17554BATA+T equivalent, this page delivers verified technical context, exact pin functions, real-world application mapping, and validated alternative options - all grounded in the official Analog Devices MAX17554/MAX17555 datasheet Rev 1 (May 2022).
Technical Context
The MAX17554BATA+T implements peak-current mode control with fixed-frequency PWM in discontinuous conduction mode (DCM) for high light-load efficiency. It uses internal slope compensation and an error amplifier with built-in loop compensation, eliminating external compensation components.
It features fixed turn-on/turn-off thresholds (VON = 41.25V typ, VOFF = 9V typ), internal 3.3V linear regulator for bias, and robust protection including hiccup-mode overcurrent (240mA peak limit), thermal shutdown at 160°C, and ±1.5% output voltage regulation accuracy across temperature.
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 5.0V ±1.5% - eliminates need for external feedback resistors; suitable for powering microcontrollers, sensors, and logic. |
| Max Output Current | 50mA - sufficient for low-power IoT nodes, isolated gate drivers, and auxiliary rails in PLC modules. |
| Switching Frequency | 70kHz ±10% - enables use of small, low-cost inductors and reduces EMI filtering complexity vs. MHz-range converters. |
| Soft-Start Time | 0.8ms typical - limits inrush current during power-up, preventing input rail sag in shared supply systems. |
| Quiescent Current | 181µA no-load - ensures minimal standby power draw in always-on monitoring devices. |
| Operating Temperature | -40°C to +125°C ambient - qualified for harsh environments including motor control cabinets and outdoor industrial enclosures. |
Pinout & Package
MAX17554BATA+T is housed in an 8-pin TDFN package (2mm × 2mm, 0.5mm pitch), with exposed thermal pad for enhanced heat dissipation. The package code is T822CN+1, outline number 21-0487, and land pattern 90-0349.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 IN | Power Input | Primary HV input node; requires local 1µF ceramic decoupling to GND to suppress switching noise and stabilize input impedance. |
| 2 GND | Ground Reference | 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 and electrical performance by reducing bond-wire inductance and spreading ground current. |
| 4 GND | Ground Reference | Third ground pin; provides additional low-inductance path for return currents, critical for EMI compliance (CISPR32 Class B). |
| 5 FB/VO | Feedback & Bootstrap | Connects directly to 5V output; serves dual role as regulation sense node and bootstrap supply for internal high-side driver. |
| 6 GND | Ground Reference | Fourth ground pin; completes symmetric grounding layout for optimal thermal dissipation and signal integrity. |
| 7 GND | Ground Reference | Fifth ground pin; ensures lowest possible thermal resistance (θJA = 162°C/W) on four-layer PCBs. |
| 8 LX | Switching Node | Drives external inductor; high dv/dt node requiring shortest possible trace to minimize radiated emissions and ringing. |
Key Features
| Feature | Design Value |
|---|---|
| All-ceramic capacitor support | Enables fully compact, high-reliability layout using only X7R ceramics - no electrolytics required for input/output filtering. |
| No Schottky diode needed | Synchronous rectification via integrated MOSFETs achieves >90% efficiency at 50mA, eliminating conduction loss and thermal derating concerns. |
| Internal loop compensation | Removes requirement for external compensation network, reducing BOM count and design validation effort for stable operation. |
| Fixed 70kHz switching | Provides predictable EMI profile and simplifies filter design - avoids variable-frequency artifacts that complicate EMC testing. |
| Hiccup-mode overload protection | Shuts down for 64ms upon repeated overcurrent events, limiting average power dissipation and preventing thermal runaway during short circuits. |
Applications
| Factory Automation Sensors | Aftermarket Automotive Asset Trackers |
|---|---|
|
Use Scenario: Compact pressure/temperature sensor nodes mounted inside sealed industrial enclosures with limited airflow. IC Role / Device Role / Timing Role: Primary 5V point-of-load regulator converting 24V field bus to clean, regulated supply for MCU and analog front-end. Use Value: Ultra-small 2mm × 2mm footprint and all-ceramic design eliminate heat buildup and enable conformal coating compatibility. |
Use Scenario: GPS-enabled vehicle tracking units powered from automotive battery (12V–16V nominal, up to 60V transients). IC Role / Device Role / Timing Role: Input-tolerant 5V buck converter supplying power to GNSS module and cellular modem during cold cranking and load dump. Use Value: 10V–60V input range withstands ISO 7637-2 pulses; 50mA output meets quiescent needs of low-power tracking firmware. |
| Industrial PLC Auxiliary Rails | Isolated I/O Module Power |
|
Use Scenario: DIN-rail mounted programmable logic controllers requiring multiple isolated 5V rails for digital I/O conditioning. IC Role / Device Role / Timing Role: Local 5V regulator for optocoupler LED drivers and level-shifting logic, fed from shared 24V backplane. Use Value: -40°C to +125°C rating ensures reliability in uncooled control cabinets; internal soft-start prevents backplane voltage droop during hot-swap. |
Use Scenario: Isolated analog input modules where galvanic separation demands separate 5V supplies for primary and secondary sides. IC Role / Device Role / Timing Role: Secondary-side 5V regulator powered via isolated DC-DC transformer, providing clean supply for ADC reference and SPI interface. Use Value: Low 181µA no-load current minimizes losses in isolation barrier; CISPR32 Class B compliance simplifies system-level EMC certification. |
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 |
|---|---|---|---|
| MAX17554AATA+T | Fixed 3.3V output (vs. 5V); identical input range, package, and feature set. | Used where 3.3V logic supply is required instead of 5V - e.g., ARM Cortex-M0+ microcontrollers or low-voltage sensors. | Select when target load requires 3.3V; pin-compatible drop-in replacement with no layout change. |
| LM5164QDDARQ1 | Automotive-grade (AEC-Q100), 65V input, adjustable output, 150mA capability, external compensation required. | Targets automotive infotainment and ADAS subsystems needing higher current, wider temp range (-40°C to +150°C), and functional safety support. | Choose for automotive qualification or >50mA loads; requires redesign of feedback and compensation network. |
Compared with MAX17554AATA+T, the MAX17554BATA+T offers direct 5V regulation without resistor dividers; compared with LM5164QDDARQ1, it trades higher current and AEC-Q100 compliance for smaller size, lower BOM count, and simpler layout - ideal for cost-sensitive industrial edge nodes.
Availability
MAX17554BATA+T is available at Aetrix Electronics and suitable for factory automation sensors, aftermarket automotive asset trackers, and industrial PLC auxiliary rails requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for MAX17554BATA+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 MAX17554BATA+T belongs to the MAX17554/MAX17555 family of ultra-small, high-efficiency synchronous buck converters designed specifically for space-constrained industrial point-of-load applications demanding wide input voltage tolerance and robust thermal performance.
FAQ
What is the input voltage range supported by the MAX17554BATA+T?
The MAX17554BATA+T supports an input voltage range of 10V to 60V. This wide range allows it to operate reliably across common industrial supply rails such as 12V, 24V, and 48V systems, including transient conditions like load dump in automotive-derived applications. It does not support inputs below 10V - unlike the MAX17555 variant which starts at 4V.
Does the MAX17554BATA+T require external feedback resistors to set its output voltage?
No, the MAX17554BATA+T does not require external feedback resistors. As a fixed 5V output variant (denoted by the "B" suffix), it internally regulates to 5.0V ±1.5% across temperature and load. The FB/VO pin connects directly to the output node for both feedback sensing and internal bootstrap supply - no resistor divider is needed.
Can the MAX17554BATA+T be used in applications requiring a power-good signal?
No, the MAX17554BATA+T does not include a RESET output or power-good functionality. That feature is exclusive to the MAX17555 series (e.g., MAX17555B). The MAX17554BATA+T lacks EN/UV, HYST, and RESET pins - its enable function is fixed via input voltage thresholds (VON/VOFF), and status monitoring must be implemented externally.
What package type and thermal characteristics does the MAX17554BATA+T have?
The MAX17554BATA+T uses an 8-pin TDFN package (2mm × 2mm, 0.5mm pitch) with exposed thermal pad. Its thermal resistance is θJA = 162°C/W on a four-layer board. With a maximum junction temperature of +150°C and ambient rating up to +125°C, it supports continuous operation in thermally demanding enclosures when properly mounted on a copper pour.
How does the MAX17554BATA+T handle overcurrent or short-circuit conditions?
The MAX17554BATA+T employs hiccup-mode overcurrent protection. When inductor peak current exceeds 240mA (typ), it enters hiccup mode after 16 consecutive current-limit events - suspending switching for 64ms (typ), then attempting soft-start again. This limits average power dissipation and prevents thermal damage during sustained shorts, unlike constant-current foldback or latch-off schemes.
MAX17554BATA+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):
- 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+T FAQ
1.How can I place an order for MAX17554BATA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17554BATA+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 MAX17554BATA+T reliable?
The price and inventory of MAX17554BATA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17554BATA+T is usually 5 days.
3.What payment methods are accepted for MAX17554BATA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17554BATA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17554BATA+T?
MAX17554BATA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17554BATA+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 MAX17554BATA+T?
For technical support, including MAX17554BATA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17554BATA+T requirements.
6.How does Aetrix verify that MAX17554BATA+T is sourced from the original manufacturer or authorized distributors?
All MAX17554BATA+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 MAX17554BATA+T meets industry standards.
7.What is the process for return or replacement of MAX17554BATA+T?
All MAX17554BATA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX17554BATA+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 MAX17554BATA+T part is unused and in its original packaging.
Return procedure for MAX17554BATA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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