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Analog Devices Inc./Maxim Integrated MAX17290EUBA+
- Part No.:
- MAX17290EUBA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
MAX17290EUBA+.pdf
- Description:
- IC REG BOOST ADJ 1A 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,730
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Product details
Overview
MAX17290EUBA+ 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, integrated 5V PVL regulator, and 42V input transient protection. It serves as the core PWM control IC in preboost stages for LED drivers and telecom power supplies.
For engineers reviewing the MAX17290EUBA+ datasheet, MAX17290EUBA+ pinout, MAX17290EUBA+ application, or MAX17290EUBA+ equivalent, key selection considerations include its 2.5V–36V input range with bootstrapped operation, 100kHz–1MHz programmable switching frequency (MAX17290 variant), 9ms internal soft-start, PGOOD output with hiccup-mode protection, and compatibility with logic-level nMOSFETs via 5V DRV drive.
Technical Context
The MAX17290EUBA+ implements constant-frequency peak current-mode control with programmable slope compensation to stabilize duty cycles >50%. Its error amplifier delivers 700µS transconductance and 140µA source/sink capability for fast load-transient response, while the internal 1V reference maintains ±1% regulation accuracy across line, load, and temperature.
It integrates a 5V low-dropout PVL regulator (4.7V–5.45V output) powering the gate driver and analog circuitry, enabling direct operation from automotive battery rails. The FSET/SYNC pin supports both resistor-based frequency setting (100kHz–1MHz) and external clock synchronization (220kHz–1000kHz), and the SYNCO output provides 180° phase-shifted timing for multiphase interleaving.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 36V continuous; extends to 2.5V in bootstrapped mode - enables operation from depleted batteries or low-voltage auxiliary rails. |
| Switching Frequency | 100kHz to 1MHz (resistor-programmable); supports external sync up to 1000kHz - balances efficiency, size, and EMI in compact designs. |
| Shutdown Current | 4µA typical - minimizes system standby power in always-on or battery-backed applications. |
| PVL Regulator Output | 4.7V to 5.45V at 10mA - powers external gate drivers and bias circuits without secondary LDOs. |
| Peak Efficiency | >90% - reduces thermal load and improves power density in space-constrained boost converters. |
| Current-Sense Threshold | 250mV ±12% - sets precise overcurrent limit independent of temperature drift. |
| Soft-Start Time | Fixed 9ms - controls inrush current during power-up without external components. |
Pinout & Package
MAX17290EUBA+ is housed in a 10-pin µMAX-EP package (3mm × 3mm, 0.5mm pitch) with exposed pad for thermal enhancement. Pin 1 is FB; pin 10 is EP (exposed pad, internally connected to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB | Feedback Input | Regulated to 1.00V ±1%; connects to resistor divider on boost output to set VOUT precisely. |
| COMP | Error Amplifier Output | Drives external Type II/III compensation network between COMP and GND for loop stability. |
| FSET/SYNC | Frequency Set / Sync Input | Accepts resistor-to-GND for 100kHz–1MHz oscillator setting or logic-level sync signal (220kHz–1000kHz). |
| PGOOD | Open-Drain Power-Good | Asserts high after soft-start when VOUT ≥90% of target; enters hiccup mode after 16 consecutive current-limit events. |
| DRV | nMOS Gate Driver Output | Swings 0V to ~5V (PVL-referenced); sources 750mA / sinks 1000mA peak - drives logic-level MOSFETs directly. |
| GND | Ground Reference | Analog and power ground; must be tied to large PCB copper plane for thermal and noise performance. |
| EN | Active-High Enable | Logic- or high-voltage compatible (up to +42V); disables device and reduces ICC to 4µA when low. |
| SUP | Power Supply Input | Primary supply for internal circuitry; requires ≥1µF ceramic bypass capacitor to GND. |
| ISNS | Current-Sense Input | Monitors voltage across external sense resistor; includes 60ns leading-edge blanking to reject MOSFET turn-on spikes. |
| PVL | 5V Internal Regulator Output | Supplies DRV, COMP, and internal analog blocks; requires ≥2.2µF ceramic capacitor close to pin. |
Key Features
| Feature | Design Value |
|---|---|
| All-ceramic capacitor support | Enables ultra-compact, low-profile boost solutions without electrolytic or tantalum capacitors. |
| Bootstrapped input operation | Allows SUP to be powered from converter output, enabling start-up from as low as 2.5V input. |
| Spread-spectrum modulation (B/D/F versions) | Reduces EMI peak emissions by ±6% frequency dithering - simplifies compliance testing. |
| Programmable slope compensation | Stabilizes current-mode control above 50% duty cycle using single external resistor on ISNS. |
| Hiccup-mode short-circuit protection | Disables switching for 44ms after 16 current-limit faults - prevents thermal runaway under sustained overload. |
| 42V input transient protection | Withstands automotive load-dump surges without external TVS - enhances system robustness. |
Applications
| Automotive Front-End Preboost | Industrial Telecom Power |
|---|---|
Use Scenario: Boosting 9V–16V automotive battery rail to stable 24V/36V for downstream DC-DC modules in ADAS ECUs. IC Role / Device Role / Timing Role: Primary PWM controller regulating high-current boost stage; manages soft-start, PGOOD sequencing, and hiccup recovery. Use Value: 42V transient tolerance eliminates need for external surge clamping; bootstrapped mode ensures cold-crank operation down to 2.5V. |
Use Scenario: Generating isolated 48V intermediate bus from 24V/36V telecom rectifier output in base station power shelves. IC Role / Device Role / Timing Role: High-frequency (2.2MHz) boost controller enabling small magnetics and low-profile layout; synchronized via FSET/SYNC for multi-rail coherence. Use Value: 100kHz–1MHz frequency range allows optimal trade-off between efficiency and EMI filtering component size. |
| LED Lighting Driver Preboost | High-Voltage Industrial Sensor Supply |
Use Scenario: Providing regulated 40V–60V preboost for string-connected high-power LEDs in streetlight or horticultural lighting systems. IC Role / Device Role / Timing Role: Constant-frequency current-mode controller delivering precise output regulation despite wide input variation (e.g., solar-charged battery). Use Value: >90% peak efficiency minimizes heat generation in sealed luminaires; PVL-regulated DRV ensures consistent MOSFET gate drive. |
Use Scenario: Generating 36V–40V bias for industrial analog front-ends (e.g., strain-gauge amplifiers, RTD interfaces) requiring low-noise, stable supply. IC Role / Device Role / Timing Role: Low-EMI boost controller with spread-spectrum and all-ceramic design - suppresses switching noise coupling into precision analog paths. Use Value: 4µA shutdown current enables energy-efficient sleep modes; 1% FB reference ensures tight output voltage accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17292EUBA+ | Higher switching frequency range (1MHz–2.5MHz); same pinout and feature set except no OVP pin in EUBA variant. | Better suited for ultra-compact designs requiring smallest possible inductors/capacitors; less optimal for low-frequency EMI-sensitive environments. | Select MAX17292EUBA+ when board area is critical and 2.2MHz operation is acceptable; otherwise retain MAX17290EUBA+ for broader frequency flexibility and lower EMI baseline. |
| LM5122MMX/NOPB | Wider input range (3V–65V); no integrated PVL regulator; requires external bias supply; higher quiescent current (1.5mA vs. 4µA). | Preferred for ultra-high-input applications (e.g., 48V industrial buses); unsuitable for battery-powered systems requiring ultra-low shutdown current. | Choose LM5122MMX/NOPB only when input exceeds 36V or when external bias is already available; MAX17290EUBA+ remains superior for 12V/24V battery and automotive use cases. |
Compared with MAX17292EUBA+, MAX17290EUBA+ offers lower minimum switching frequency for relaxed EMI filtering and better light-load efficiency; versus LM5122MMX/NOPB, it delivers 375× lower shutdown current and integrated 5V bias - eliminating external regulators and reducing BOM count in space- and power-constrained designs.
Availability
MAX17290EUBA+ is available at Aetrix Electronics and suitable for automotive front-end preboost, industrial telecom power, LED lighting driver preboost, and high-voltage industrial sensor supply applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX17290EUBA+ 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 targets high-efficiency, wide-input boost controllers for harsh-environment power conversion - emphasizing robustness (42V transients), integration (5V PVL, PGOOD), and flexibility (bootstrapped operation, sync capability).
FAQ
What is the input voltage range supported by the MAX17290EUBA+?
The MAX17290EUBA+ supports a continuous input voltage range of 4.5V to 36V, with transient protection up to 42V. In bootstrapped mode - where the SUP pin is powered from the converter's output - the effective operating range extends down to 2.5V, enabling reliable start-up from deeply discharged batteries or low-voltage auxiliary rails. This dual-range capability is confirmed in the Absolute Maximum Ratings and General Description sections of the official datasheet.
Does the MAX17290EUBA+ include an integrated voltage regulator?
Yes, the MAX17290EUBA+ integrates a dedicated 5V low-dropout regulator (PVL) that outputs 4.7V to 5.45V at up to 10mA. This regulator powers the internal gate driver (DRV), error amplifier, and other analog circuitry - eliminating the need for an external bias supply. Its undervoltage lockout (3.8V–4.3V) and hysteresis (0.4V) ensure clean startup and shutdown behavior, as specified in the Electrical Characteristics table.
How does the MAX17290EUBA+ handle overcurrent and short-circuit conditions?
The MAX17290EUBA+ uses a 250mV current-sense threshold on the ISNS pin to detect overcurrent. When 16 consecutive current-limit events occur while PGOOD is low, the device enters hiccup mode: switching halts for 44ms before initiating a new 9ms soft-start sequence. This protects external MOSFETs and inductors from thermal damage during sustained overload, as detailed in the Hiccup Operation section of the datasheet.
Can the MAX17290EUBA+ be synchronized to an external clock?
Yes, the MAX17290EUBA+ supports external synchronization via the FSET/SYNC pin, which accepts logic-level signals from 220kHz to 1000kHz. A falling edge on this pin triggers DRV activation after a fixed delay (60ns at 2.2MHz, 125ns at 400kHz). This enables precise phase alignment in multiphase boost configurations or EMI reduction through clock dithering - functionality verified in the Oscillator Frequency and Functional Diagram sections.
What package type and thermal characteristics apply to the MAX17290EUBA+?
The MAX17290EUBA+ uses a 10-pin µMAX-EP package (3mm × 3mm, 0.5mm pitch) with an exposed pad internally connected to GND. On a four-layer PCB, its junction-to-ambient thermal resistance is 78°C/W and junction-to-case is 5°C/W. These values - measured per JEDEC JESD51-7 - enable reliable operation up to +85°C ambient, as documented in the Package Thermal Characteristics table.
MAX17290EUBA+ 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
MAX17290EUBA+ FAQ
1.How can I place an order for MAX17290EUBA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17290EUBA+ 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 MAX17290EUBA+ reliable?
The price and inventory of MAX17290EUBA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17290EUBA+ is usually 5 days.
3.What payment methods are accepted for MAX17290EUBA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17290EUBA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17290EUBA+?
MAX17290EUBA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17290EUBA+ 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 MAX17290EUBA+?
For technical support, including MAX17290EUBA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17290EUBA+ requirements.
6.How does Aetrix verify that MAX17290EUBA+ is sourced from the original manufacturer or authorized distributors?
All MAX17290EUBA+ 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 MAX17290EUBA+ meets industry standards.
7.What is the process for return or replacement of MAX17290EUBA+?
All MAX17290EUBA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX17290EUBA+, 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 MAX17290EUBA+ part is unused and in its original packaging.
Return procedure for MAX17290EUBA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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