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Analog Devices Inc./Maxim Integrated MAX17292EUBA+
- Part No.:
- MAX17292EUBA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
MAX17292EUBA+.pdf
- Description:
- IC REG BOOST ADJ 1A 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,098
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Product details
Overview
MAX17292EUBA+ from Maxim Integrated is a high-efficiency, synchronous step-up DC-DC controller optimized for wide-input industrial and automotive boost applications. It operates from 4.5V to 36V input (extendable to 2.5V in bootstrapped mode), delivers up to 2.5MHz switching frequency, features 4µA shutdown current, 5V internal PVL regulator, and integrated slope compensation. It serves as the core control IC in high-density point-of-load boost converters powering telecom hardware and distributed supplies.
For engineers reviewing the MAX17292EUBA+ datasheet, MAX17292EUBA+ pinout, MAX17292EUBA+ application, or MAX17292EUBA+ equivalent, key selection criteria include its 1MHz–2.5MHz adjustable switching frequency, 250mV current-sense threshold, 9ms internal soft-start, 42V transient protection, and compatibility with logic-level nMOSFETs driven by its 5V PVL-referenced DRV output.
Technical Context
The MAX17292EUBA+ implements constant-frequency peak current-mode PWM control with programmable slope compensation to stabilize operation above 50% duty cycle. Its oscillator supports resistor-set (1MHz–2.5MHz) or external synchronization via FSET/SYNC, and includes spread-spectrum modulation (±6%) in B/D/F versions to reduce EMI peaks.
It integrates a 5V/100mA low-dropout PVL regulator to power the gate driver and internal circuitry, enabling direct operation from automotive battery inputs. Protection features include hiccup-mode response to 16 consecutive current-limit events, thermal shutdown at 165°C, overvoltage detection via OVP pin (110% VFB threshold), and 42V input transient tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 36V continuous; extends to 2.5V when bootstrapped - enables use in low-voltage battery start-up or output-fed configurations. |
| Switching Frequency | 1MHz to 2.5MHz (resistor-programmed); supports external sync from 1MHz to 2.5MHz - allows EMI optimization and multi-phase interleaving. |
| Shutdown Current | 4µA typical - minimizes system standby power loss in always-on or battery-backed applications. |
| PVL Regulator Output | 4.7V to 5.45V at 10mA - powers external gate driver and internal logic; eliminates need for auxiliary bias supply. |
| Current-Sense Threshold | 212mV to 288mV - sets precise overcurrent limit; combined with ISNS leading-edge blanking (40ns) improves noise immunity. |
| Soft-Start Time | 6ms to 12ms (internally fixed at 9ms typical) - controls inrush current during power-up without external components. |
| Thermal Shutdown | 165°C activation with 10°C hysteresis - protects IC and external MOSFET under sustained overload or poor heatsinking. |
Pinout & Package
The MAX17292EUBA+ is housed in a 12-pin 3mm × 3mm TQFN-EP package with exposed pad connected to GND for thermal dissipation. Pin numbering follows top-view orientation with pin 1 at top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SUP | Power-supply input | Accepts 4.5V–36V input; requires ≥1µF ceramic bypass to GND; withstands 42V transients. |
| EN | Active-high enable | Logic- or high-voltage compatible (–0.3V to +42V); disables controller and reduces ICC to 4µA. |
| GND | Ground reference | Signal and power ground; connects internally to exposed pad for thermal conduction. |
| DRV | nMOS gate driver output | Swings 0V to ~5V (PVL-referenced); sources 750mA/sinks 1000mA peak - drives logic-level FETs directly. |
| PVL | 5V internal regulator output | Supplies DRV and internal circuitry; requires ≥2.2µF ceramic capacitor close to pin for stability. |
| ISNS | Current-sense input | Monitors voltage across external sense resistor; 250mV typical trip; includes 40ns blanking window. |
| REFIN | Reference input | Accepts 0.5V–2V external voltage to set FB regulation point; tied to PVL for default 1V feedback. |
| PGOOD | Open-drain power-good | Asserts high after soft-start when VOUT >90% target; pulls low during hiccup or EN=low. |
| FSET/SYNC | Frequency set / sync input | Resistor-to-GND sets fSW (1–2.5MHz); accepts external clock (1–2.5MHz) for synchronization. |
| COMP | Error amplifier output | Connects to GND via RC network for loop compensation; 140µA sink/source capability. |
| FB | Feedback input | Regulated to 1V (or REFIN value); connects to resistor divider from VOUT for output voltage setting. |
| EP | Exposed thermal pad | Internally connected to GND; must be soldered to large PCB copper area for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| All-ceramic capacitor support | Enables ultra-compact, low-profile designs without electrolytic capacitors - reduces board space and improves reliability. |
| Bootstrapped low-VIN operation | Extends functional input range down to 2.5V when output supplies SUP - supports cold-cranking and battery-depleted scenarios. |
| Programmable slope compensation | Stabilizes current-loop control above 50% duty cycle using single external resistor on ISNS - prevents subharmonic oscillation. |
| Spread-spectrum modulation | Reduces EMI peak amplitude by ±6% frequency dithering - simplifies compliance testing without added filtering components. |
| Hiccup-mode short-circuit protection | Enters 44ms recovery delay after 16 consecutive current-limit cycles - limits average power dissipation during fault conditions. |
Applications
| Telecom Power Front-End | Automotive Preboost Stage |
|---|---|
|
Use Scenario: Boosting 12V battery rail to 24V/48V intermediate bus in base station remote radio units (RRUs). IC Role / Device Role / Timing Role: Primary PWM controller managing synchronous boost stage with external nMOSFET and Schottky diode. Use Value: 42V transient protection and –40°C to +85°C operation ensure reliability in outdoor telecom enclosures with wide ambient swings. |
Use Scenario: Preboosting 9V–16V automotive battery to stable 24V for ADAS camera modules during cold cranking. IC Role / Device Role / Timing Role: High-frequency (2.2MHz) boost controller enabling compact magnetics and reduced EMI in space-constrained ECUs. Use Value: Bootstrapped 2.5V start-up and 5V PVL regulator allow operation even during deep battery sag below 6V. |
| Distributed Point-of-Load Supply | Industrial LED Driver Bias |
|
Use Scenario: Generating isolated 15V bias rails from 5V or 12V backplane in modular PLC I/O cards. IC Role / Device Role / Timing Role: Non-isolated step-up controller feeding downstream isolated DC-DC converter primary side. Use Value: 1MHz–2.5MHz switching enables small 0.47µH inductors and ceramic output caps - minimizing footprint per channel. |
Use Scenario: Providing regulated 36V–48V for high-brightness LED strings in factory lighting fixtures. IC Role / Device Role / Timing Role: Constant-current-capable boost controller (via ISNS feedback) driving external MOSFET and sense resistor. Use Value: Adjustable slope compensation and 250mV current-sense threshold enable precise, stable LED current regulation across line/load variations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5122MH/NOPB | Wider VIN (3V–75V); no integrated PVL regulator; requires external bias supply; 50kHz–1MHz range. | Better suited for ultra-wide-input industrial systems; lacks bootstrapped low-VIN capability and integrated 5V rail. | Choose LM5122MH/NOPB when input exceeds 36V or when external bias is already available; avoid if PVL simplification is critical. |
| TPS40210DRCT | Fixed 1MHz frequency; no spread spectrum; no PVL regulator; 4.5V–52V input; 500mV current-sense threshold. | Lower component count for fixed-frequency designs; higher ISNS threshold reduces current-sense resistor power loss but lowers precision. | Choose TPS40210DRCT for cost-sensitive, fixed-frequency applications where 500mV ISNS tolerance is acceptable and external bias exists. |
Compared with LM5122MH/NOPB and TPS40210DRCT, the MAX17292EUBA+ uniquely integrates a 5V PVL regulator and supports bootstrapped 2.5V operation - eliminating auxiliary supplies and enabling robust cold-cranking performance in automotive and battery systems.
Availability
MAX17292EUBA+ is available at Aetrix Electronics and suitable for telecom hardware, automotive preboost stages, and distributed point-of-load supplies requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX17292EUBA+ 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
Maxim Integrated (now part of Analog Devices) designs high-performance analog and mixed-signal ICs for demanding industrial, automotive, and communications applications.
The MAX17290/MAX17292 product line delivers high-frequency, wide-input synchronous boost controllers with integrated protection and bias regulation - targeting space-constrained, high-reliability power conversion in harsh environments.
FAQ
What is the maximum switching frequency supported by the MAX17292EUBA+?
The MAX17292EUBA+ supports a maximum switching frequency of 2.5MHz when configured with an appropriate resistor on the FSET/SYNC pin or synchronized to an external 2.5MHz clock signal. This high-frequency capability enables compact magnetic design and reduced output ripple, making it ideal for space-constrained applications such as automotive ADAS modules and telecom RRU power supplies. The MAX17292EUBA+ maintains stable operation across its full 1MHz–2.5MHz range with minimal jitter.
Does the MAX17292EUBA+ require an external bias supply for the gate driver?
No, the MAX17292EUBA+ does not require an external bias supply for the gate driver. It integrates a 5V internal low-dropout regulator (PVL) that powers the DRV output and internal circuitry. The PVL pin delivers 4.7V to 5.45V at up to 100mA and must be decoupled with at least a 2.2µF ceramic capacitor. This eliminates the need for auxiliary supplies and simplifies system architecture - a key advantage over alternatives like the TPS40210DRCT or LM5122MH/NOPB.
How does the MAX17292EUBA+ handle input voltage transients?
The MAX17292EUBA+ provides robust 42V input transient protection on the SUP pin, allowing it to survive load-dump events common in automotive 12V systems without external clamping. Absolute maximum rating for SUP is +42V, and the device continues normal operation up to 36V. During transients, internal circuitry remains functional, and the PVL regulator maintains stable 5V output - ensuring uninterrupted gate drive and control logic. This eliminates the need for external TVS diodes in many designs.
Can the MAX17292EUBA+ operate with an input voltage below 4.5V?
Yes, the MAX17292EUBA+ can operate with input voltages as low as 2.5V in bootstrapped mode, where the output voltage supplies the SUP pin. This mode is enabled when the output is precharged or externally biased, allowing reliable startup and regulation during deep battery discharge or cold-cranking conditions. In standard operation, the nominal input range is 4.5V to 36V. The bootstrapped capability is confirmed in the datasheet's General Description and Detailed Description sections.
What protection features are built into the MAX17292EUBA+?
The MAX17292EUBA+ integrates multiple protection features: hiccup-mode response to 16 consecutive current-limit events (with 44ms recovery delay), thermal shutdown at 165°C (10°C hysteresis), overvoltage protection via the OVP pin (110% VFB threshold), PGOOD monitoring with fault reporting, and 42V input transient tolerance. These features collectively safeguard both the IC and external power components - especially critical in unattended industrial and automotive deployments where field reliability is paramount.
MAX17292EUBA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Function:
- Step-Up
- Output Configuration:
- Positive
- Topology:
- Boost
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 36V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 1A
- Frequency - Switching:
- 1MHz ~ 2.5MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-uMAX-EP
MAX17292EUBA+ FAQ
1.How can I place an order for MAX17292EUBA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17292EUBA+ 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 MAX17292EUBA+ reliable?
The price and inventory of MAX17292EUBA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17292EUBA+ is usually 5 days.
3.What payment methods are accepted for MAX17292EUBA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17292EUBA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17292EUBA+?
MAX17292EUBA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17292EUBA+ 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 MAX17292EUBA+?
For technical support, including MAX17292EUBA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17292EUBA+ requirements.
6.How does Aetrix verify that MAX17292EUBA+ is sourced from the original manufacturer or authorized distributors?
All MAX17292EUBA+ 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 MAX17292EUBA+ meets industry standards.
7.What is the process for return or replacement of MAX17292EUBA+?
All MAX17292EUBA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX17292EUBA+, 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 MAX17292EUBA+ part is unused and in its original packaging.
Return procedure for MAX17292EUBA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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