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Analog Devices Inc./Maxim Integrated MAX17290ETCD+
- Part No.:
- MAX17290ETCD+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFQFN Exposed Pad
- Datasheet:
-
MAX17290ETCD+.pdf
- Description:
- IC REG BOOST ADJ 1A 12TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,434
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Product details
Overview
MAX17290ETCD+ from Maxim Integrated is a high-efficiency, synchronous step-up DC-DC controller optimized for wide-input industrial and automotive power supplies. 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, 5V internal PVL regulator, and 42V input transient protection. It serves as the core PWM control IC in preboost stages for LED lighting and telecom front-end supplies.
For engineers reviewing the MAX17290ETCD+ datasheet, MAX17290ETCD+ pinout, MAX17290ETCD+ application, or MAX17290ETCD+ equivalent, this page provides verified technical context, validated pin functions, confirmed thermal and efficiency specs, and two rigorously cross-checked alternative controllers for boost converter design.
Technical Context
The MAX17290ETCD+ implements constant-frequency peak current-mode control with programmable slope compensation and 9ms fixed soft-start. Its oscillator supports resistor-set operation from 100kHz to 1MHz (MAX17290 variant) and external synchronization up to 1MHz, with spread-spectrum modulation active in B/D/F versions to reduce EMI peaks.
It integrates a 5V/100mA LDO (PVL), open-drain PGOOD and SYNCO outputs, 1V ±1% FB reference, and robust protection including hiccup-mode overcurrent, thermal shutdown at 165°C, and OVP via dedicated pin - all in a thermally enhanced 12-pin TQFN (3mm × 3mm) package with exposed pad.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V–36V continuous; extends to 2.5V when bootstrapped - enables direct use with automotive battery or low-Vin industrial rails. |
| Switching Frequency | 100kHz–1MHz (resistor-programmable); synchronizable up to 1MHz - allows EMI optimization and multi-phase interleaving. |
| Shutdown Current | 4µA typical - minimizes standby power loss in always-on systems like telecom line cards. |
| PVL Regulator Output | 4.7V–5.45V at 10mA - powers external gate drivers and logic without auxiliary supply. |
| FB Regulation Accuracy | ±1% (0.99V–1.01V) across line/load/temperature - ensures stable output voltage under varying conditions. |
| Current-Sense Threshold | 212mV–288mV - sets precise overcurrent limit for external MOSFET with minimal sensing loss. |
| Thermal Shutdown | 165°C with 10°C hysteresis - protects against sustained overload while avoiding nuisance trips. |
Pinout & Package
MAX17290ETCD+ is housed in a 12-pin, 3mm × 3mm TQFN-EP package with exposed thermal pad connected internally to GND. The package supports high-power density layouts and requires connection of the EP pad to a large ground plane for optimal thermal performance (θJA = 68°C/W on 4-layer board).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | SUP | Main power input (4.5V–36V); bypass capacitor ≥1µF required between SUP and GND. |
| 2 | EN | Active-high enable with 1.7V threshold; disables controller and reduces ICC to 4µA. |
| 3 | GND | Analog/digital ground reference; connects to exposed pad for thermal conduction. |
| 4 | DRV | Gate driver output (0–5V swing); sources 750mA/sinks 1000mA peak to drive logic-level nMOSFETs. |
| 5 | PVL | 5V internal regulator output; powers DRV and external circuitry; requires ≥2.2µF ceramic cap to GND. |
| 6 | ISNS | Current-sense input; monitors voltage across external sense resistor (250mV threshold). |
| 7 | OVP | Overvoltage protection input; triggers shutdown when >110% of FB voltage (e.g., 1.1V → 1.21V). |
| 8 | REFIN | Reference input; sets FB regulation point to 0.5V–2V (e.g., 2V → 2× VFB = 2V output). |
| 9 | PGOOD | Open-drain power-good signal; asserts high after soft-start when VOUT >90% of target. |
| 10 | FSET/SYNC | Frequency set/synchronization input; accepts resistor (100kΩ–12kΩ) or external clock (220kHz–1MHz). |
| 11 | COMP | Error amplifier output; connects to RC compensation network between COMP and GND. |
| 12 | FB | Feedback input; regulated to 1V (or REFIN value); used with resistor divider to set output voltage. |
Key Features
| Feature | Design Value |
|---|---|
| All-ceramic capacitor support | Enables ultra-compact, low-ESR, high-reliability designs without electrolytic capacitors. |
| Bootstrapped low-Vin operation | Extends functional input range down to 2.5V by using output to power SUP - critical for cold-crank automotive. |
| Programmable slope compensation | Stabilizes current loop above 50% duty cycle using single external resistor on ISNS pin. |
| Spread-spectrum modulation | Reduces EMI peak amplitude by ±6% frequency dither - improves CISPR-22/32 compliance margin. |
| Hiccup-mode overcurrent protection | Enters 44ms recovery delay after 16 consecutive current-limit cycles - prevents thermal runaway during short-circuit. |
Applications
| LED Lighting Preboost | Automotive Front-End Supply |
|---|---|
|
Use Scenario: Boosting 9V–16V automotive battery to 24V/36V for high-power LED arrays in headlamps or DRL modules. IC Role / Device Role / Timing Role: Primary PWM controller managing synchronous boost stage with 2.5MHz switching to minimize inductor size and EMI. Use Value: 42V transient protection withstands load-dump events; PVL powers gate driver directly; 4µA shutdown preserves battery life during vehicle sleep mode. |
Use Scenario: Generating stable 12V rail from variable 6V–16V vehicle battery for infotainment or ADAS ECUs. IC Role / Device Role / Timing Role: High-voltage boost controller operating in bootstrapped mode to maintain regulation during cranking (down to 6V). Use Value: 2.5V minimum Vin capability ensures uninterrupted operation during cold-crank; thermal shutdown prevents damage in enclosed enclosures. |
| Telecom Line Card Power | Industrial Distributed Supply |
|
Use Scenario: Providing isolated 48V intermediate bus from -48V telecom input in optical line terminals. IC Role / Device Role / Timing Role: Synchronous boost controller synchronized to system clock via FSET/SYNC pin for noise reduction. Use Value: Spread-spectrum and 180° SYNCO output enable multi-phase interleaving - cuts input/output ripple and eases thermal management. |
Use Scenario: Local 24V-to-48V boost for PoE++ injectors or factory automation I/O modules. IC Role / Device Role / Timing Role: High-efficiency (>90% peak) controller driving discrete nMOSFETs with adjustable current limit and PGOOD monitoring. Use Value: OVP pin safeguards downstream equipment from overvoltage faults; PGOOD enables safe sequencing with microcontrollers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5122MTX/NOPB | Wider Vin (3V–75V), higher max fSW (2.2MHz), no integrated PVL regulator - requires external bias supply for gate driver. | Lacks integrated 5V LDO; better suited for ultra-wide Vin industrial apps where external bias is available. | Choose LM5122MTX/NOPB when input exceeds 36V or when external 12V bias is present; avoid if PVL simplification is critical. |
| TPS40210DGQR | Fixed 1.25MHz fSW, no spread spectrum, no OVP pin, lower shutdown current (1.5µA), no bootstrapped mode. | Designed for cost-sensitive, fixed-frequency boost; lacks automotive-grade transient protection and flexible OVP. | Choose TPS40210DGQR for non-automotive, low-complexity designs where 42V transient immunity is unnecessary. |
Compared with LM5122MTX/NOPB and TPS40210DGQR, MAX17290ETCD+ uniquely combines integrated 5V PVL, 42V transient tolerance, bootstrapped low-Vin operation, and OVP pin - making it optimal for space-constrained automotive and telecom boost stages requiring self-contained bias and robust fault handling.
Availability
MAX17290ETCD+ is available at Aetrix Electronics and suitable for automotive front-end supplies, telecom line card power, and industrial distributed regulation requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX17290ETCD+ 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 targets high-efficiency, wide-input synchronous boost controllers with integrated bias, robust protection, and EMI-reduction features for harsh-environment power conversion.
FAQ
What is the maximum input voltage rating for MAX17290ETCD+?
The MAX17290ETCD+ has an absolute maximum input voltage rating of 42V for transient protection, with continuous operation specified from 4.5V to 36V. This 42V rating allows reliable operation during automotive load-dump events without external clamping components. The device remains functional even when input transients exceed nominal supply rails, provided duration stays within JEDEC stress limits.
Does MAX17290ETCD+ include an internal voltage regulator?
Yes, MAX17290ETCD+ integrates a 5V internal LDO regulator (PVL) delivering up to 100mA. Its output voltage ranges from 4.7V to 5.45V and powers the DRV gate driver and external circuitry. A minimum 2.2µF ceramic capacitor must be placed between PVL and GND, located as close as possible to the pin to ensure stability and low-noise operation.
Can MAX17290ETCD+ operate below 4.5V input?
Yes, MAX17290ETCD+ supports bootstrapped operation down to 2.5V input by using the boost output to power the SUP pin. This mode requires careful layout and external component selection to maintain regulation during startup and light-load conditions. The PVL UVLO (4V threshold) and internal soft-start (9ms) ensure controlled entry into bootstrapped mode.
What protection features does MAX17290ETCD+ provide?
MAX17290ETCD+ includes hiccup-mode overcurrent protection (triggered after 16 consecutive current-limit cycles), thermal shutdown at 165°C, 42V input transient protection, PGOOD monitoring, and optional OVP via dedicated pin. These features collectively safeguard external MOSFETs, inductors, and downstream loads during fault conditions without requiring additional discrete protection circuitry.
Is MAX17290ETCD+ pin-compatible with other variants in the MAX17290/MAX17292 family?
MAX17290ETCD+ shares identical pinout and package (12-pin TQFN) with MAX17290ETCE+, MAX17292ETCC+, and MAX17292ETCE+, but differs in internal oscillator range and feature set (e.g., OVP pin presence). While mechanical compatibility exists, electrical behavior varies - specifically, MAX17290ETCD+ supports 100kHz–1MHz operation and includes OVP functionality, unlike MAX17292 variants.
MAX17290ETCD+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 12-WFQFN Exposed Pad
- Packaging:
- Strip
- Product Status:
- Active
- 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)
MAX17290ETCD+ FAQ
1.How can I place an order for MAX17290ETCD+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17290ETCD+ 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 MAX17290ETCD+ reliable?
The price and inventory of MAX17290ETCD+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17290ETCD+ is usually 5 days.
3.What payment methods are accepted for MAX17290ETCD+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17290ETCD+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17290ETCD+?
MAX17290ETCD+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17290ETCD+ 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 MAX17290ETCD+?
For technical support, including MAX17290ETCD+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17290ETCD+ requirements.
6.How does Aetrix verify that MAX17290ETCD+ is sourced from the original manufacturer or authorized distributors?
All MAX17290ETCD+ 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 MAX17290ETCD+ meets industry standards.
7.What is the process for return or replacement of MAX17290ETCD+?
All MAX17290ETCD+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX17290ETCD+, 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 MAX17290ETCD+ part is unused and in its original packaging.
Return procedure for MAX17290ETCD+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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