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Analog Devices Inc./Maxim Integrated MAX17292EUBB+T
- Part No.:
- MAX17292EUBB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
MAX17292EUBB+T.pdf
- Description:
- IC REG BOOST ADJ 1A 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,867
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Product details
Overview
MAX17292EUBB+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, features 4µA shutdown current, integrated 5V PVL regulator, and supports external synchronization via FSET/SYNC. It is used in telecom power supplies and distributed point-of-load regulation where compact size and transient robustness are critical.
For engineers reviewing the MAX17292EUBB+T datasheet, MAX17292EUBB+T pinout, MAX17292EUBB+T application, or MAX17292EUBB+T equivalent, key selection criteria include its 1MHz–2.5MHz programmable switching range, 42V input transient protection, peak current-mode control architecture with adjustable slope compensation, and compatibility with logic-level nMOSFETs driven by its 5V PVL-regulated DRV output.
Technical Context
The MAX17292EUBB+T implements constant-frequency, peak current-mode PWM control with internal transconductance error amplifier (700µS gm) and 1% accurate 1V reference. Its oscillator frequency is set externally via resistor on FSET/SYNC (12kΩ yields ~2.2MHz) and supports synchronization to external clocks between 1MHz–2.5MHz.
It integrates a 5V/10mA low-dropout PVL regulator for gate drive and bias, provides 180° phase-shifted SYNCO output for multiphase operation, and includes hiccup-mode protection triggered after 16 consecutive current-limit cycles. The ISNS pin accepts 250mV current-sense threshold with 40ns leading-edge blanking and supports external slope compensation via resistor network.
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 discharged battery or low-voltage rail |
| Switching Frequency | 1MHz to 2.5MHz (set by external resistor or external SYNC clock) - allows ultra-compact magnetics and reduced EMI |
| Shutdown Current | 4µA typical - minimizes system standby power loss in always-on applications |
| PVL Regulator Output | 4.7V to 5.45V at 10mA - powers DRV gate driver and external circuitry without auxiliary supply |
| Current-Sense Threshold | 212mV to 288mV - sets precise overcurrent limit with ±15% tolerance across temperature |
| Thermal Shutdown | 165°C with 10°C hysteresis - protects IC and external MOSFET during sustained overload |
| PGOOD Accuracy | ±5% window (85–95% rising, 80–90% falling) - ensures reliable power sequencing and fault detection |
Pinout & Package
MAX17292EUBB+T is housed in a 10-pin µMAX-EP package (3mm × 3mm, 0.8mm height) with exposed pad connected to GND for thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SUP | Power-supply input | Bypassed with ≥1µF ceramic capacitor; withstands 42V transients |
| EN | Active-high enable | Logic- or high-voltage compatible (–0.3V to +42V); disables all switching and reduces ICC to 4µA |
| GND | Ground reference | Common return for analog, power, and exposed pad; requires low-impedance PCB plane |
| DRV | nMOS gate driver output | 5V-referenced (PVL), 750mA source / 1000mA sink capability; drives logic-level FETs directly |
| PVL | Internal 5V regulator output | Supplies DRV and external bias; requires ≥2.2µF ceramic capacitor placed adjacent to pin |
| ISNS | Current-sense input | 250mV threshold with 40ns blanking; connects to sense resistor between FET source and GND |
| FB | Feedback input | Regulated to 1V (when REFIN = PVL); sets output voltage via resistor divider from VOUT |
| REFIN | Reference input | Accepts 0.5V–2V external voltage to dynamically adjust output; tied to PVL for fixed 1V FB reference |
| PGOOD | Open-drain power-good signal | Asserts high after soft-start when VOUT > 90%; pulls low during hiccup or EN deassertion |
| FSET/SYNC | Frequency set or sync input | Resistor-to-GND sets fSW (1–2.5MHz); external logic clock synchronizes switching edge |
Key Features
| Feature | Design Value |
|---|---|
| All-ceramic capacitor support | Enables fully ceramic input/output filtering - eliminates bulk electrolytics and improves reliability in high-temp environments |
| Spread-spectrum modulation (B/D/F versions) | ±6% frequency dithering reduces EMI peak amplitude - simplifies compliance testing without added shielding |
| Fixed 9ms internal soft-start | Linear ramp of internal reference prevents inrush current - eliminates need for external soft-start circuitry |
| 180° out-of-phase SYNCO output | Enables two-phase interleaved boost with second MAX17290/MAX17292 - cuts input/output ripple by ~50% |
| Adjustable slope compensation | Single-resistor configuration stabilizes current loop above 50% duty cycle - avoids subharmonic oscillation in high-VOUT/VIN designs |
Applications
| Telecom Power Supply | Distributed Point-of-Load |
|---|---|
Use Scenario: Boosting 12V or 24V intermediate bus to 48V for PoE++ or optical module bias. IC Role / Device Role / Timing Role: Primary PWM controller managing high-efficiency, high-frequency boost conversion with precise current limiting and thermal protection. Use Value: 2.5MHz operation enables <1µH inductors and 100% ceramic output caps - reducing board area by >40% vs. 500kHz solutions. |
Use Scenario: Generating stable 5V or 12V rails from variable battery inputs (e.g., 2.5V–36V) in portable test equipment. IC Role / Device Role / Timing Role: Synchronous boost controller with bootstrapped operation enabling start-up from deeply discharged Li-ion cells. Use Value: 4µA shutdown current and 2.5V minimum VIN extend battery runtime in sleep modes without compromising wake-up responsiveness. |
| Automotive Front-End Preboost | Industrial LED Driver Bias |
Use Scenario: Preboosting 9V–16V automotive battery to 24V for downstream buck regulators in ADAS ECUs. IC Role / Device Role / Timing Role: High-transient-tolerance boost controller with 42V input protection and hiccup-mode short-circuit recovery. Use Value: 42V transient rating eliminates need for upstream TVS clamping - simplifying front-end protection and lowering BOM cost. |
Use Scenario: Providing constant-current LED string bias from wide-range industrial DC inputs (e.g., 12V–36V factory power). IC Role / Device Role / Timing Role: Precision current-mode controller regulating boost output with fast load-step response and programmable OVP. Use Value: Adjustable REFIN input allows real-time dimming control via DAC voltage - enabling analog dimming without digital interface overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17292ETCE+ | TQFN-12 (3mm × 3mm) package with OVP pin; same electrical specs and frequency range | Includes dedicated OVP input for independent overvoltage monitoring - required in safety-critical systems where output overvoltage must be isolated from feedback path | Select MAX17292ETCE+ if OVP functionality is mandatory; MAX17292EUBB+T lacks OVP pin and relies on FB-based protection only |
| LM5122MMX/NOPB | 4.5V–65V input, 50kHz–750kHz range, no integrated PVL regulator - requires external 5V bias for gate drive | Higher input voltage rating suits 48V industrial systems; lower max frequency increases inductor size but improves light-load efficiency | Choose LM5122MMX/NOPB for >36V input or when external bias is already available; MAX17292EUBB+T offers tighter integration and higher fSW for space-constrained designs |
Compared with MAX17292ETCE+, MAX17292EUBB+T saves board area with µMAX packaging but omits OVP; versus LM5122MMX/NOPB, it delivers higher switching frequency and self-contained gate drive, reducing external component count at the cost of lower absolute input voltage rating.
Availability
MAX17292EUBB+T is available at Aetrix Electronics and suitable for telecom hardware, automotive preboost systems, and industrial point-of-load regulation requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX17292EUBB+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-frequency, wide-input synchronous boost controllers targeting space-constrained, high-reliability power conversion where efficiency, transient immunity, and integration reduce system complexity.
FAQ
What is the maximum input voltage transient rating for MAX17292EUBB+T?
The MAX17292EUBB+T supports 42V input voltage transients per Absolute Maximum Ratings. This allows direct connection to automotive battery rails without external TVS diodes in most ISO 7637-2 pulse scenarios. Operation remains functional up to 36V continuous input, and the device enters shutdown below 3.8V PVL undervoltage lockout threshold.
Does MAX17292EUBB+T include an integrated gate driver, and what MOSFET types does it support?
Yes, MAX17292EUBB+T integrates a high-current gate driver (DRV) powered by its internal 5V PVL regulator. It sources 750mA and sinks 1000mA peak current, enabling direct drive of logic-level n-channel MOSFETs with gate thresholds ≤2.5V. It is not designed for high-side pMOS or discrete gate-driver ICs - external FET selection must match PVL voltage and DRV current capability.
Can MAX17292EUBB+T operate with input voltages below 4.5V, and how is this achieved?
Yes, MAX17292EUBB+T can operate down to 2.5V input using bootstrapped mode, where the converter's regulated output supplies the SUP pin. In this configuration, the PVL regulator sustains DRV drive and internal circuitry once startup is complete. The device does not support sub-4.5V operation in standard mode - bootstrapping requires careful layout and stability analysis per the datasheet's Application Information section.
What is the purpose of the REFIN pin on MAX17292EUBB+T, and how is it used?
The REFIN pin on MAX17292EUBB+T accepts an external 0.5V–2V reference voltage to dynamically adjust the FB regulation point and thus the output voltage in real time. When tied to PVL, it configures fixed 1V FB regulation. Driving REFIN with a DAC or potentiometer enables analog dimming in LED drivers or programmable output adjustment in adaptive power supplies - without modifying the FB resistor divider.
How does the hiccup-mode protection work in MAX17292EUBB+T, and when is it activated?
Hiccup mode in MAX17292EUBB+T activates when PGOOD is low (VOUT < 85% of target) and 16 consecutive current-limit events occur. The device then halts switching for 44ms before initiating a new 9ms soft-start. This protects external MOSFETs and inductors during sustained overloads or output shorts. It is distinct from thermal shutdown and operates independently of junction temperature.
MAX17292EUBB+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:
- 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
MAX17292EUBB+T FAQ
1.How can I place an order for MAX17292EUBB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17292EUBB+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 MAX17292EUBB+T reliable?
The price and inventory of MAX17292EUBB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17292EUBB+T is usually 5 days.
3.What payment methods are accepted for MAX17292EUBB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17292EUBB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17292EUBB+T?
MAX17292EUBB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17292EUBB+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 MAX17292EUBB+T?
For technical support, including MAX17292EUBB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17292EUBB+T requirements.
6.How does Aetrix verify that MAX17292EUBB+T is sourced from the original manufacturer or authorized distributors?
All MAX17292EUBB+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 MAX17292EUBB+T meets industry standards.
7.What is the process for return or replacement of MAX17292EUBB+T?
All MAX17292EUBB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX17292EUBB+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 MAX17292EUBB+T part is unused and in its original packaging.
Return procedure for MAX17292EUBB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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