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Analog Devices Inc./Maxim Integrated MAX17290ETCE+T
- Part No.:
- MAX17290ETCE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFQFN Exposed Pad
- Datasheet:
-
MAX17290ETCE+T.pdf
- Description:
- IC REG BOOST ADJ 1A 12TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,987
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Product details
Overview
MAX17290ETCE+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 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 MAX17290ETCE+T datasheet, MAX17290ETCE+T pinout, MAX17290ETCE+T application, or MAX17290ETCE+T equivalent, key selection criteria include its 2.5MHz max switching frequency, 9ms internal soft-start, programmable slope compensation, spread-spectrum EMI reduction, and compatibility with logic-level nMOSFETs driven by its 750mA/1A peak gate driver.
Technical Context
The MAX17290ETCE+T implements constant-frequency, peak current-mode PWM control with an internal transconductance error amplifier (700µS gm) and 1% accurate 1V reference. Its oscillator supports resistor-programmed frequencies from 100kHz to 1MHz (MAX17290 variant) and external synchronization via FSET/SYNC pin up to 1MHz.
It integrates a 5V low-dropout PVL regulator powering the DRV gate driver and internal circuitry, enabling direct operation from automotive battery inputs. Protection includes hiccup-mode overcurrent response after 16 consecutive current-limit cycles, thermal shutdown at 165°C, and OVP monitoring via dedicated pin (OVP threshold = 110% of FB voltage).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 36V continuous; extends to 2.5V in bootstrapped mode - enables use with partially discharged batteries or low-voltage rails. |
| Switching Frequency | 100kHz to 1MHz (resistor-programmable); supports external sync up to 1MHz - balances efficiency, size, and EMI in compact designs. |
| Shutdown Current | 4µA typical - minimizes system standby power loss in always-on or battery-backed applications. |
| PVL Regulator Output | 4.7V to 5.45V (typ. 5V) - powers external gate driver and internal circuitry, eliminating need for auxiliary bias supply. |
| Peak Gate Drive Current | 750mA source / 1A sink - drives logic-level nMOSFETs with low gate charge, supporting fast switching at 2.5MHz. |
| Current-Sense Threshold | 212mV to 288mV - sets precise overcurrent limit independent of temperature, enabling robust short-circuit protection. |
| Soft-Start Time | 6ms to 12ms (typ. 9ms) - limits inrush current during power-up, reducing stress on input capacitors and source. |
Pinout & Package
MAX17290ETCE+T is housed in a 12-pin, 3mm × 3mm TQFN-EP package with exposed pad connected to GND for enhanced thermal performance. The pinout is validated per Maxim's official datasheet Rev 0 (8/16) and matches the ETCE/F variant designation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SUP | Power-supply input | Bypassed to GND with ≥1µF ceramic capacitor; accepts 4.5–36V input with 42V transient tolerance. |
| EN | Active-high enable | Logic- or high-voltage compatible; pulls device into <4µA shutdown when low. |
| GND | Ground reference | Primary analog/digital ground; connects to exposed pad for thermal conduction. |
| DRV | nMOS gate driver output | Swings between PVL (~5V) and GND; sources 750mA/ sinks 1A peak to drive external FET. |
| PVL | 5V internal regulator output | Supplies DRV and internal circuitry; requires ≥2.2µF ceramic capacitor close to pin. |
| ISNS | Current-sense input | Monitors voltage across external sense resistor; triggers current-limit at 250mV (typ.). |
| REFIN | Reference input | Accepts 0.5V–2V external voltage to set output regulation point; tied to PVL for 1V FB reference. |
| PGOOD | Open-drain power-good | Asserts high after soft-start when VOUT >90% target; enters hiccup mode after 16 current-limit events. |
| FSET/SYNC | Frequency set / sync input | Resistor-to-GND sets fSW; external clock (220kHz–1MHz) synchronizes switching phase. |
| COMP | Error amplifier output | Connects to compensation network (RC) between COMP and GND for loop stability. |
| FB | Feedback input | Regulated to 1V (when REFIN = PVL) or to REFIN voltage; sets output via resistor divider. |
| EP | Exposed pad | Internally connected to GND; must be soldered to large PCB ground plane for thermal management. |
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 on ISNS. |
| Spread-spectrum modulation | ±6% frequency dithering reduces EMI peak emissions - active only when internal oscillator is used (B/D/F versions). |
| 180° out-of-phase SYNCO output | Enables two-phase interleaved boost topologies for lower input/output ripple and balanced thermal load. |
| Fixed 9ms soft-start | Prevents input inrush and output overshoot during startup without requiring external timing components. |
Applications
| Automotive Front-End Preboost | Industrial Telecom Power Supply |
|---|---|
Use Scenario: Boosting 9–16V automotive battery to stable 24V rail for infotainment or ADAS modules under cold-crank (6V) or load-dump (42V) conditions. IC Role / Device Role / Timing Role: Primary PWM controller managing external nMOSFET, regulating output via FB/REFIN, and protecting system via OVP, PGOOD, and hiccup mode. Use Value: 42V transient tolerance and bootstrapped 2.5V operation ensure uninterrupted function during extreme battery fluctuations. |
Use Scenario: Generating isolated 48V intermediate bus from 24V or 36V distributed supply in telecom base station power shelves. IC Role / Device Role / Timing Role: High-frequency (2.5MHz) boost controller driving discrete MOSFETs, synchronized via FSET/SYNC to reduce system-level EMI. Use Value: 1MHz+ switching enables smaller magnetics and capacitors, reducing board area and weight in space-constrained rack-mount systems. |
| LED Lighting Driver Preboost | High-Voltage Industrial Sensor Interface |
Use Scenario: Providing regulated 36–48V preboost stage before constant-current LED driver ICs in streetlight or stadium lighting fixtures. IC Role / Device Role / Timing Role: Wide-input (4.5–36V) controller maintaining stable output despite solar-charged battery voltage variation or grid brownouts. Use Value: >90% peak efficiency and 4µA shutdown current extend runtime in off-grid or energy-sensitive installations. |
Use Scenario: Generating precise 12V or 15V bias rails for high-side current sensors, isolation amplifiers, or analog front-ends in PLC I/O modules. IC Role / Device Role / Timing Role: Point-of-load boost controller with tight 1% FB reference and low-noise PVL regulator ensuring sensor accuracy and stability. Use Value: Integrated 5V PVL eliminates need for separate LDO, simplifying BOM and improving PSRR for noise-sensitive analog circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17292ETCE+T | Higher switching frequency range (1–2.5MHz vs. 0.1–1MHz); same pinout and feature set except oscillator range. | Better suited for ultra-compact designs requiring smallest possible inductors/capacitors due to 2.5MHz max fSW. | Select MAX17292ETCE+T when board space is critical and higher-frequency magnetics are preferred; otherwise MAX17290ETCE+T offers broader low-frequency flexibility. |
| LM5122MMX/NOPB | Wider input range (3–75V), no integrated PVL regulator, requires external bias supply; supports adjustable current limit and frequency foldback. | Preferred in high-input industrial systems (e.g., 48V DC distribution) where 75V abs max rating and fault logging are required. | Choose LM5122MMX/NOPB for >36V input applications or when external bias control is acceptable; MAX17290ETCE+T excels where integrated 5V PVL simplifies design. |
Compared with MAX17292ETCE+T and LM5122MMX/NOPB, the MAX17290ETCE+T uniquely combines 42V transient tolerance, integrated 5V PVL regulator, and sub-1MHz programmability - making it optimal for cost-sensitive, space-constrained automotive and telecom preboost where simplicity and ruggedness are prioritized over maximum frequency.
Availability
MAX17290ETCE+T is available at Aetrix Electronics and suitable for automotive front-end preboost, telecom intermediate bus generation, and industrial LED driver applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX17290ETCE+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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAX17290/MAX17292 product line was designed specifically for wide-input, high-efficiency synchronous boost conversion in harsh environments - emphasizing transient robustness, integrated bias regulation, and EMI-conscious operation.
FAQ
What is the maximum switching frequency supported by the MAX17290ETCE+T?
The MAX17290ETCE+T supports a maximum switching frequency of 1MHz when configured with an external resistor on the FSET/SYNC pin. This upper limit is fixed for the MAX17290 variant; the MAX17292 variant extends to 2.5MHz. External synchronization is supported up to 1MHz. The MAX17290ETCE+T datasheet confirms this range in the Electrical Characteristics table under "Switching Frequency Range".
Does the MAX17290ETCE+T include an integrated voltage regulator?
Yes, the MAX17290ETCE+T integrates a 5V low-dropout regulator (PVL) with output voltage specified from 4.7V to 5.45V (typ. 5V). This regulator powers the internal circuitry and the DRV gate driver, eliminating the need for an external bias supply. The PVL regulator is enabled automatically when SUP exceeds the UVLO threshold and remains active during normal operation of the MAX17290ETCE+T.
How does the MAX17290ETCE+T handle overvoltage protection?
The MAX17290ETCE+T provides overvoltage protection via the OVP pin, which monitors output voltage through an external resistor divider. When OVP rises above 110% of the FB regulation voltage (e.g., >1.1V if FB = 1V), switching is disabled. Operation resumes when OVP falls below 107.5% of the FB point. This OVP function is present on the ETCE/F package variant and is documented in the Pin Descriptions section of the MAX17290ETCE+T datasheet.
Can the MAX17290ETCE+T operate from a 2.5V input supply?
Yes, the MAX17290ETCE+T can operate from as low as 2.5V input in bootstrapped mode, where the converter output supplies the SUP pin. In standard operation, the input range is 4.5V to 36V with 42V transient tolerance. The bootstrapped capability is explicitly stated in the General Description and Detailed Description sections of the MAX17290ETCE+T datasheet and enables use with deeply discharged batteries or low-voltage auxiliary rails.
What thermal performance can be expected from the MAX17290ETCE+T in a 4-layer PCB layout?
In a 4-layer PCB layout, the MAX17290ETCE+T (TQFN-EP package) has a junction-to-ambient thermal resistance (θJA) of 68°C/W and junction-to-case (θJC) of 11°C/W, per JEDEC JESD51-7 testing methodology. These values assume proper soldering of the exposed pad to a large internal ground plane. The device includes thermal shutdown at 165°C with 10°C hysteresis, ensuring reliable operation under sustained load in industrial ambient conditions.
MAX17290ETCE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 12-WFQFN 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:
- 12-TQFN (3x3)
MAX17290ETCE+T FAQ
1.How can I place an order for MAX17290ETCE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17290ETCE+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 MAX17290ETCE+T reliable?
The price and inventory of MAX17290ETCE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17290ETCE+T is usually 5 days.
3.What payment methods are accepted for MAX17290ETCE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17290ETCE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17290ETCE+T?
MAX17290ETCE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17290ETCE+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 MAX17290ETCE+T?
For technical support, including MAX17290ETCE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17290ETCE+T requirements.
6.How does Aetrix verify that MAX17290ETCE+T is sourced from the original manufacturer or authorized distributors?
All MAX17290ETCE+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 MAX17290ETCE+T meets industry standards.
7.What is the process for return or replacement of MAX17290ETCE+T?
All MAX17290ETCE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX17290ETCE+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 MAX17290ETCE+T part is unused and in its original packaging.
Return procedure for MAX17290ETCE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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