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Analog Devices Inc./Maxim Integrated MAX17290EUBB+
- Part No.:
- MAX17290EUBB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
MAX17290EUBB+.pdf
- Description:
- IC REG BOOST ADJ 1A 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,220
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Product details
Overview
MAX17290EUBB+ 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, achieves >90% peak efficiency, features 4µA shutdown current, and integrates a 5V PVL regulator for gate drive. It is used in telecom power supplies and distributed point-of-load regulation where transient robustness and compact all-ceramic design are critical.
For engineers reviewing the MAX17290EUBB+ datasheet, MAX17290EUBB+ pinout, MAX17290EUBB+ application, or MAX17290EUBB+ equivalent, key selection considerations include its 42V input transient protection, programmable slope compensation, 180° SYNCO output for two-phase operation, spread-spectrum EMI reduction (B/D/F versions), and compatibility with logic-level nMOSFETs driven by its 5V PVL-regulated DRV output.
Technical Context
The MAX17290EUBB+ implements constant-frequency, peak current-mode PWM control with internal 1V reference accuracy (±1%), 700µS error amplifier transconductance, and adjustable slope compensation via external resistor on ISNS. Its oscillator supports resistor-programmed frequencies from 100kHz to 1MHz (MAX17290 variant) and synchronizes externally via FSET/SYNC with 220kHz–1000kHz range.
It integrates a 5V/100mA PVL LDO for gate drive, 42V-rated input pins (EN, SUP, OVP, FB), hiccup-mode overcurrent protection triggered after 16 consecutive current-limit cycles, and thermal shutdown at 165°C with 10°C hysteresis. The device uses leading-edge blanking (60ns) and supports bootstrapped operation down to 2.5V input when powered from its own output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 36V continuous; extends to 2.5V in bootstrapped mode - enables direct operation from low-voltage battery sources or post-regulated rails. |
| Switching Frequency | 100kHz to 1MHz (resistor-programmed); supports external sync up to 1000kHz - allows EMI optimization and multi-phase interleaving. |
| Peak Efficiency | >90% - reduces thermal load and improves power density in space-constrained industrial modules. |
| Shutdown Current | 4µA (typ) - enables ultra-low-power standby in always-on systems like remote sensors or backup power monitors. |
| PVL Regulator Output | 4.7V to 5.45V (typ 5V) - powers external nMOSFET gate drivers directly, eliminating need for auxiliary bias supply. |
| FB Regulation Voltage | 0.99V to 1.01V - ensures ±1% output voltage accuracy across line, load, and temperature without external trimming. |
| ISNS Current Limit Threshold | 212mV to 288mV - sets precise overcurrent protection threshold independent of temperature drift (±1.5% typical). |
Pinout & Package
MAX17290EUBB+ is housed in a 10-pin µMAX-EP package (3mm × 3mm, 0.8mm height) with exposed pad thermally connected to GND. The package supports high-power dissipation (825mW on single-layer board) and requires PCB thermal relief via the EP pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SUP | Power-supply input | Accepts 4.5V–36V input; rated for 42V transients - connects to bulk input capacitor and must be bypassed with ≥1µF ceramic. |
| EN | Active-high enable | Logic- or high-voltage–compatible input (1.7V threshold); disables controller and reduces ICC to 4µA. |
| GND | Ground reference | Primary analog/digital return; ties to EP pad - requires low-impedance plane for noise immunity and thermal conduction. |
| DRV | nMOSFET gate driver output | 5V-referenced push-pull output sourcing 750mA/sinking 1000mA - drives logic-level MOSFETs without level shifters. |
| PVL | 5V internal regulator output | Stable 5V supply for DRV and external circuitry; requires ≥2.2µF ceramic capacitor placed adjacent to pin. |
| ISNS | Current-sense input | Monitors voltage across external sense resistor; includes 60ns blanking and programmable slope compensation interface. |
| REFIN | Reference input | Accepts 0.5V–2V external voltage to set FB regulation point - enables dynamic output voltage adjustment during operation. |
| PGOOD | Open-drain power-good flag | Asserts high after soft-start when VOUT >90% of target; enters hiccup mode after 16 current-limit events. |
| FSET/SYNC | Frequency set or sync input | Resistor-programmed oscillator (100kHz–1MHz) or external clock input (220kHz–1000kHz) - supports phase synchronization. |
| FB | Feedback input | Regulated to 1V (when REFIN = PVL); connects to resistor divider from output - sets output voltage with ±1% accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| All-ceramic capacitor support | Enables ultra-compact, low-profile boost solutions without electrolytic capacitors - improves reliability and lifetime in harsh environments. |
| Bootstrapped low-VIN operation | Extends functional input range to 2.5V by powering SUP from regulated output - supports battery-backed or energy-harvesting inputs. |
| Spread-spectrum modulation (B/D/F versions) | Reduces EMI peak amplitude by ±6% frequency dithering - simplifies compliance testing for Class B emissions without added filtering. |
| 180° SYNCO output | Provides phase-shifted clock signal for seamless two-phase interleaving - cuts input/output ripple in half and balances thermal load. |
| Fixed 9ms internal soft-start | Linearly ramps reference voltage to limit inrush current - prevents input rail collapse during cold start in high-capacitance systems. |
Applications
| Telecom Power Supply | Distributed Point-of-Load |
|---|---|
Use Scenario: Boosting 12V intermediate bus to 48V for PoE++ injectors or optical line cards in 5G base stations. IC Role / Device Role / Timing Role: Primary PWM controller managing synchronous boost stage with precise current limiting and hiccup protection. Use Value: 42V transient tolerance withstands telecom surge standards (IEC 61000-4-5), while 2.5MHz capability minimizes magnetics size in dense card layouts. |
Use Scenario: Generating 5V or 12V from variable 3.3V–24V industrial backplane rails for FPGA I/O banks or sensor interfaces. IC Role / Device Role / Timing Role: High-efficiency, wide-input boost controller enabling single-rail flexibility across diverse sub-systems. Use Value: Bootstrapped 2.5V operation supports brownout resilience; PVL-regulated DRV ensures consistent MOSFET turn-on even under input sag. |
| Automotive Front-End Preboost | LED Lighting Driver Stage |
Use Scenario: Preboosting 9V–16V automotive battery to stable 24V for downstream buck regulators in ADAS ECUs. IC Role / Device Role / Timing Role: Robust front-end controller handling cold-crank (4.5V) and load-dump (42V) conditions per ISO 7637-2. Use Value: Integrated UVLO hysteresis (400mV) prevents chattering during cranking; thermal shutdown (165°C) protects against under-hood overheating. |
Use Scenario: Driving high-current LED strings from 12V vehicle or 24V industrial supply in architectural or street lighting. IC Role / Device Role / Timing Role: Constant-current-capable boost controller (via ISNS feedback) delivering stable LED current despite input variation. Use Value: Adjustable slope compensation stabilizes current loop at high duty cycles (>85%); >90% efficiency reduces heatsink requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17292EUBB+ | Higher switching frequency range (1MHz–2.5MHz) vs. MAX17290EUBB+ (100kHz–1MHz); identical pinout and feature set otherwise. | Better suited for ultra-compact designs requiring smallest possible inductors/capacitors; higher fSW increases gate drive losses. | Select MAX17292EUBB+ when board area is constrained and thermal management supports higher switching losses. |
| LM5122MMX/NOPB | Wider input range (3V–65V), integrated high-side gate driver, no internal PVL regulator; requires external bias supply for gate drive. | More flexible for ultra-high-VIN applications (e.g., 48V telecom rectifiers), but lacks bootstrapped low-VIN mode and spread-spectrum EMI control. | Choose LM5122MMX/NOPB when input exceeds 36V or when external bias is already available; MAX17290EUBB+ preferred for simplicity and EMI-sensitive designs. |
Compared with MAX17292EUBB+, the MAX17290EUBB+ offers lower-frequency operation for reduced switching loss and EMI at moderate power levels; versus LM5122MMX/NOPB, it provides integrated PVL regulation and bootstrapped 2.5V operation - reducing BOM count and enabling true single-supply startup.
Availability
MAX17290EUBB+ is available at Aetrix Electronics and suitable for telecom hardware, automotive front-end preboost, and general-purpose point-of-load regulation requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MAX17290EUBB+ 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 precision analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX17290/MAX17292 product line targets high-reliability, wide-input boost conversion in harsh environments - emphasizing transient robustness, thermal resilience, and EMI-controlled operation for mission-critical power stages.
FAQ
What is the minimum input voltage supported by the MAX17290EUBB+?
The MAX17290EUBB+ operates from 4.5V to 36V in standard mode. When configured in bootstrapped mode - where the SUP pin is powered from the regulated output - the effective minimum input drops to 2.5V. This mode requires careful external component selection to maintain stability and is validated per the datasheet's bootstrapped application circuit.
Does the MAX17290EUBB+ include an internal voltage reference?
Yes, the MAX17290EUBB+ integrates a precision 1V bandgap reference with ±1% accuracy across temperature and load. This reference sets the FB regulation point when REFIN is tied to PVL, enabling highly accurate output voltage programming via the external resistor divider without external references.
How does the MAX17290EUBB+ protect against overvoltage conditions?
The MAX17290EUBB+ supports optional overvoltage protection via the OVP pin (available on C/D/F variants). When OVP rises above 110% of the FB voltage, switching halts immediately. Operation resumes only after OVP falls below 107.5% of FB - providing hysteresis to prevent chatter. Note: MAX17290EUBB+ is a B-version part and includes this OVP function.
Can the MAX17290EUBB+ drive logic-level MOSFETs directly?
Yes. The MAX17290EUBB+ integrates a 5V PVL regulator that powers the DRV output stage. With DRV sourcing 750mA and sinking 1000mA peak current, it directly drives logic-level n-channel MOSFETs without external level shifters or gate drivers - simplifying layout and reducing component count.
What thermal protection mechanisms does the MAX17290EUBB+ implement?
The MAX17290EUBB+ includes thermal shutdown at +165°C with 10°C hysteresis, plus internal thermal derating monitored via junction temperature. Its µMAX-EP package features low thermal resistance (97°C/W on single-layer board), and the exposed pad must be soldered to a thermal plane to ensure reliable operation at full load across –40°C to +85°C ambient.
MAX17290EUBB+ 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:
- 100kHz ~ 1MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-uMAX-EP
MAX17290EUBB+ FAQ
1.How can I place an order for MAX17290EUBB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17290EUBB+ 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 MAX17290EUBB+ reliable?
The price and inventory of MAX17290EUBB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17290EUBB+ is usually 5 days.
3.What payment methods are accepted for MAX17290EUBB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17290EUBB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17290EUBB+?
MAX17290EUBB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17290EUBB+ 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 MAX17290EUBB+?
For technical support, including MAX17290EUBB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17290EUBB+ requirements.
6.How does Aetrix verify that MAX17290EUBB+ is sourced from the original manufacturer or authorized distributors?
All MAX17290EUBB+ 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 MAX17290EUBB+ meets industry standards.
7.What is the process for return or replacement of MAX17290EUBB+?
All MAX17290EUBB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX17290EUBB+, 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 MAX17290EUBB+ part is unused and in its original packaging.
Return procedure for MAX17290EUBB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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