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Analog Devices Inc./Maxim Integrated MAX17290EUBB+T
- Part No.:
- MAX17290EUBB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
MAX17290EUBB+T.pdf
- Description:
- IC REG BOOST ADJ 1A 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,539
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Product details
Overview
MAX17290EUBB+T 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 and bias. 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+T datasheet, MAX17290EUBB+T pinout, MAX17290EUBB+T application, or MAX17290EUBB+T equivalent, key selection considerations include its 2.5V–36V input range with 42V transient protection, programmable 100kHz–1MHz switching (MAX17290 variant), internal slope compensation, hiccup-mode overcurrent protection, and TQFN-12 (3mm × 3mm) package with exposed pad for thermal management.
Technical Context
The MAX17290EUBB+T implements constant-frequency, peak current-mode PWM control with an internal 1V reference and transconductance error amplifier (700µS gm). Its oscillator supports resistor-programmed frequencies from 100kHz to 1MHz and external synchronization via FSET/SYNC, enabling precise timing coordination in multi-phase systems.
It integrates a 5V low-dropout PVL regulator powering the DRV gate driver (750mA source / 1000mA sink), supports bootstrapped operation down to 2.5V input, and includes leading-edge blanking (60ns), adjustable slope compensation, and 16-cycle hiccup protection triggered by sustained current-limit events.
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 automotive battery or low-voltage rail |
| Switching Frequency | 100kHz to 1MHz (resistor-programmable); supports external sync up to 1MHz - balances efficiency, size, and EMI |
| Peak Efficiency | >90% - reduces thermal load and improves power density in space-constrained designs |
| Shutdown Current | 4µA (typ.) - minimizes standby power loss in always-on or battery-backed systems |
| PVL Regulator Output | 4.7V to 5.45V - powers external nMOSFET gate driver and internal circuitry without auxiliary supply |
| Current-Sense Threshold | 212mV to 288mV - sets accurate overcurrent limit with minimal sensing loss |
| Thermal Shutdown | 165°C with 10°C hysteresis - protects IC and external MOSFET under sustained overload |
Pinout & Package
The MAX17290EUBB+T is housed in a 12-pin TQFN package (3mm × 3mm, 0.5mm pitch) with exposed thermal pad connected internally to GND. This compact, thermally enhanced package supports high-power-density boost converter layouts on 2-layer or 4-layer PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SUP | Power-supply input | Bypassed to GND with ≥1µF ceramic capacitor; withstands 42V transients |
| EN | Active-high enable | Logic- or high-voltage–compatible input; disables controller and reduces ICC to 4µA |
| GND | Ground reference | Primary return path for power, signal, and thermal pad; connects to large ground plane |
| DRV | nMOS gate driver output | Drives external high-side switch with 5V swing (PVL-referenced); 750mA source/1000mA sink capability |
| PVL | 5V internal regulator output | Powers DRV and external circuitry; requires ≥2.2µF ceramic capacitor close to pin |
| ISNS | Current-sense input | Monitors voltage across external sense resistor; includes 60ns blanking and slope compensation interface |
| REFIN | Reference input | Accepts 0.5V–2V external voltage to set FB regulation point; tied to PVL for 1V internal reference |
| PGOOD | Open-drain power-good flag | Asserts high after soft-start when VOUT >90% of target; signals fault during hiccup or undervoltage |
| FSET/SYNC | Frequency set/synchronization input | Resistor-programmed oscillator or external clock input (220kHz–1MHz); triggers DRV on falling edge |
| COMP | Error amplifier output | Connects to RC compensation network between COMP and GND for loop stability |
| FB | Feedback input | Regulated to 1V (or REFIN voltage); connects to resistor divider from boost output to set VOUT |
| EP | Exposed thermal pad | Internally connected to GND; must be soldered to PCB ground plane for thermal performance |
Key Features
| Feature | Design Value |
|---|---|
| All-ceramic capacitor support | Enables ultra-compact, low-profile boost solutions without electrolytic or tantalum capacitors |
| Programmable slope compensation | Stabilizes current-mode control above 50% duty cycle using single external resistor at ISNS |
| Fixed 9ms internal soft-start | Linearly ramps reference to reduce inrush current and prevent output overshoot during startup |
| Spread-spectrum modulation (B/D/F versions) | ±6% frequency dithering reduces EMI peak emissions without altering average switching frequency |
| Hiccup-mode overcurrent protection | Disables switching for 44ms after 16 consecutive current-limit cycles, then re-attempts soft-start |
| 42V input transient protection | Withstands automotive load-dump and industrial surge events without external clamping |
Applications
| Telecom Power Supply | Distributed Point-of-Load Regulation |
|---|---|
Use Scenario: Boosting 12V or 24V intermediate bus to 48V for remote radio units or optical line terminals. IC Role / Device Role / Timing Role: Primary synchronous boost controller managing high-current, high-efficiency conversion with tight output regulation. Use Value: >90% efficiency and 2.5MHz capability minimize inductor size and system footprint while meeting telecom thermal and reliability requirements. |
Use Scenario: Generating stable 5V or 12V rails from variable battery or industrial input in embedded controllers or IoT gateways. IC Role / Device Role / Timing Role: Wide-input boost controller providing regulated output with integrated PVL bias and hiccup protection. Use Value: 2.5V–36V input range and 4µA shutdown current extend battery life and support brownout resilience in field-deployed equipment. |
| Automotive Front-End Preboost | Industrial LED Driver Bias Supply |
Use Scenario: Preboosting 9V–16V automotive battery to 24V before downstream buck converters in ADAS or infotainment ECUs. IC Role / Device Role / Timing Role: Robust front-end controller handling cold-crank (down to 2.5V) and load-dump (up to 42V) conditions. Use Value: Bootstrapped operation, 42V transient tolerance, and thermal shutdown ensure reliable startup and sustained operation in harsh vehicle environments. |
Use Scenario: Providing isolated, regulated bias voltage for LED driver ICs or gate drivers in high-brightness lighting systems. IC Role / Device Role / Timing Role: High-efficiency boost controller delivering clean, stable voltage to sensitive analog and digital subsystems. Use Value: Low EMI (via spread spectrum), precise 1V FB reference, and all-ceramic design reduce noise coupling into LED current control loops. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17292EUBB+T | Higher switching frequency range (1MHz–2.5MHz); same pinout and package; no OVP pin in B version | Better suited for ultra-compact designs requiring >1MHz operation and lower inductance | Select MAX17292EUBB+T when board area is constrained and higher frequency improves EMI or component size |
| LM5122MMX/NOPB | Wider input range (3V–65V); integrated high-side MOSFET driver only (no PVL regulator); different pinout and compensation architecture | Targeted at higher-voltage industrial boost and SEPIC applications with less emphasis on ultra-low shutdown current | Choose LM5122MMX/NOPB for 65V max input or when external gate driver bias is already available |
Compared with MAX17292EUBB+T, the MAX17290EUBB+T offers lower-frequency operation ideal for optimizing efficiency at medium power levels, while LM5122MMX/NOPB trades off integrated bias regulation for broader input voltage coverage and higher voltage capability - making each suitable for distinct system-level trade-offs in size, efficiency, and voltage margin.
Availability
MAX17290EUBB+T is available at Aetrix Electronics and suitable for telecom hardware, automotive preboost circuits, and distributed point-of-load regulation requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX17290EUBB+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
Maxim Integrated, now part of Analog Devices, designs precision analog, mixed-signal, and power management ICs for demanding industrial, automotive, and communications applications.
The MAX17290/MAX17292 product line delivers high-efficiency, wide-input synchronous boost controllers targeting space-constrained, high-reliability power systems where input transients, thermal performance, and EMI control are critical.
FAQ
What is the input voltage range supported by the MAX17290EUBB+T?
The MAX17290EUBB+T supports a continuous input voltage range of 4.5V to 36V, with built-in 42V transient protection. In bootstrapped mode - where the output supplies the SUP pin - the effective operating range extends down to 2.5V, enabling reliable startup under automotive cold-crank conditions. This dual-range capability is confirmed in the Absolute Maximum Ratings and Detailed Description sections of the official datasheet.
Does the MAX17290EUBB+T include an internal voltage regulator?
Yes, the MAX17290EUBB+T integrates a dedicated 5V low-dropout regulator (PVL) that supplies the DRV gate driver and internal circuitry. The PVL output ranges from 4.7V to 5.45V and requires a minimum 2.2µF ceramic capacitor placed adjacent to the PVL pin. This eliminates the need for an external bias supply and simplifies system-level power architecture.
What is the switching frequency capability of the MAX17290EUBB+T?
The MAX17290EUBB+T operates with a programmable switching frequency from 100kHz to 1MHz using an external resistor on the FSET/SYNC pin. It also accepts external synchronization signals within the same 220kHz–1MHz range. This frequency range is specific to the MAX17290 variant and differs from the MAX17292's 1MHz–2.5MHz range, as documented in the Electrical Characteristics table.
How does the MAX17290EUBB+T protect against overcurrent conditions?
The MAX17290EUBB+T uses peak current-mode control with a fixed 250mV ISNS threshold to detect overcurrent. Upon 16 consecutive current-limit events - indicating sustained overload or short-circuit - it enters hiccup mode: disabling switching for 44ms, then initiating a new 9ms soft-start sequence. This behavior is explicitly defined in the Hiccup Period and Current-Sense Threshold specifications.
What package type is used for the MAX17290EUBB+T?
The MAX17290EUBB+T is packaged in a 12-pin TQFN (3mm × 3mm, 0.5mm pitch) with exposed thermal pad (EP), designated as "ETCC" or "ETCE" in Maxim's ordering nomenclature. This matches the "EUBB" suffix per Maxim's packaging code and is verified in the Pin Configurations section and Ordering Information table of the datasheet.
MAX17290EUBB+T 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:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX17290EUBB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17290EUBB+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 MAX17290EUBB+T reliable?
The price and inventory of MAX17290EUBB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17290EUBB+T is usually 5 days.
3.What payment methods are accepted for MAX17290EUBB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17290EUBB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17290EUBB+T?
MAX17290EUBB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17290EUBB+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 MAX17290EUBB+T?
For technical support, including MAX17290EUBB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17290EUBB+T requirements.
6.How does Aetrix verify that MAX17290EUBB+T is sourced from the original manufacturer or authorized distributors?
All MAX17290EUBB+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 MAX17290EUBB+T meets industry standards.
7.What is the process for return or replacement of MAX17290EUBB+T?
All MAX17290EUBB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX17290EUBB+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 MAX17290EUBB+T part is unused and in its original packaging.
Return procedure for MAX17290EUBB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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