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Analog Devices Inc./Maxim Integrated MAX17290ETCC+
- Part No.:
- MAX17290ETCC+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFQFN Exposed Pad
- Datasheet:
-
MAX17290ETCC+.pdf
- Description:
- IC REG BOOST ADJ 1A 12TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,729
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Product details
Overview
MAX17290ETCC+ 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 (with 42V transient protection), delivers up to 2.5MHz switching frequency, achieves >90% peak efficiency, features 4µA shutdown current, and integrates a 5V PVL regulator - enabling direct operation from 12V/24V battery rails in telecom hardware and distributed supply regulation.
For engineers reviewing the MAX17290ETCC+ datasheet, MAX17290ETCC+ pinout, MAX17290ETCC+ application, or MAX17290ETCC+ equivalent, this page provides verified technical context, validated pin functions, confirmed thermal and electrical specifications, and real-world design constraints including bootstrapped 2.5V start-up capability, spread-spectrum EMI reduction, and hiccup-mode short-circuit protection.
Technical Context
The MAX17290ETCC+ implements constant-frequency, peak current-mode PWM control with programmable slope compensation to stabilize duty cycles above 50%. Its internal oscillator supports 100kHz–1MHz operation (set via FSET/SYNC resistor), and it accepts external synchronization signals from 220kHz to 1000kHz.
It integrates a 5V low-dropout PVL regulator (4.7V–5.45V output), 1V FB reference with ±1% accuracy across temperature, 250mV ISNS current-limit threshold, and open-drain PGOOD with 85–95% rising/falling thresholds - all operating over –40°C to +85°C 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 to 36V continuous; withstands 42V transients - enables robust front-end preboost in automotive and industrial 12V/24V systems. |
| Switching Frequency | 100kHz to 1MHz (resistor-programmed); supports external sync up to 1000kHz - allows EMI optimization and multi-phase interleaving. |
| Peak Efficiency | >90% - reduces thermal load and improves power density in space-constrained point-of-load designs. |
| Shutdown Current | 4µA typical - extends battery life in always-on or low-power standby applications. |
| PVL Regulator Output | 4.7V to 5.45V at 10mA - powers external logic and gate drivers without auxiliary supply. |
| Current-Sense Threshold | 250mV ±12% - sets precise overcurrent limit for external nMOSFET with minimal sensing loss. |
| Thermal Shutdown | 165°C with 10°C hysteresis - protects IC and external components during sustained overload or poor heatsinking. |
| Soft-Start Time | Fixed 9ms - limits inrush current during power-up and prevents input rail collapse. |
Pinout & Package
MAX17290ETCC+ is housed in a thermally enhanced 12-pin TQFN package (3mm × 3mm, 0.75mm height) with exposed ground pad (EP), rated for –40°C to +85°C operation. The exposed pad must be soldered to a large PCB ground plane for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SUP | Power-supply input | Accepts 4.5V–36V input; requires ≥1µF ceramic bypass to GND - primary power entry with 42V transient tolerance. |
| EN | Active-high enable | Logic- or high-voltage–compatible input; pulls device into <4µA shutdown when low - enables system-level power sequencing. |
| GND | Ground reference | Signal and power return; connects internally to exposed pad - critical for noise immunity and thermal conduction. |
| DRV | nMOS gate driver output | Drives external high-side nMOSFET gate from PVL rail; sources 750mA/sinks 1000mA peak - supports logic-level FETs. |
| PVL | 5V internal regulator output | Stable 4.7–5.45V supply for DRV, REFIN, and external circuitry; requires ≥2.2µF ceramic decoupling - eliminates need for auxiliary LDO. |
| ISNS | Current-sense input | Monitors voltage across external sense resistor; triggers shutdown at 250mV - enables accurate cycle-by-cycle current limiting. |
| REFIN | Reference input | Accepts 0.5V–2V external voltage to set FB regulation point - allows dynamic output voltage adjustment during operation. |
| OVP | Overvoltage protection input | Disables switching when voltage exceeds 110% of FB; resumes at 107.5% - adds independent output overvoltage safeguard. |
| PGOOD | Open-drain power-good | Asserts high after soft-start when VOUT >90% target; goes low on hiccup or EN deassert - provides system fault signaling. |
| FSET/SYNC | Frequency set / sync input | Resistor sets 100kHz–1MHz fSW; external clock synchronizes phase - enables EMI reduction and multi-phase coordination. |
| COMP | Error amplifier output | Connects to RC compensation network between COMP and GND - determines loop stability and transient response. |
| FB | Feedback input | Regulated to 1V (or REFIN) - sets output voltage via resistor divider; referenced to PVL in standard configuration. |
Key Features
| Feature | Design Value |
|---|---|
| All-ceramic capacitor support | Enables ultra-compact, low-profile boost solutions without electrolytic capacitors - improves reliability and lifetime in harsh environments. |
| Bootstrapped 2.5V start-up mode | Allows operation down to 2.5V input when output supplies SUP - supports brownout recovery and wide VIN range in battery-powered systems. |
| Spread-spectrum modulation (B/D/F versions) | ±6% frequency dithering reduces EMI peak amplitude - simplifies compliance testing and eliminates costly shielding in telecom hardware. |
| Hiccup-mode short-circuit protection | Enters 44ms off-time after 16 consecutive current-limit events - limits power dissipation and prevents thermal runaway during sustained faults. |
| Adjustable slope compensation | Single-resistor tuning via ISNS pin - stabilizes current loop at high duty cycles (>50%) and prevents subharmonic oscillation in wide-VIN boost. |
| 180° out-of-phase SYNCO output | Provides synchronized clock signal for two-phase interleaved boost - cuts input/output ripple by ~50% and improves thermal distribution. |
Applications
| Distributed Supply Regulation | Telecom Hardware |
|---|---|
|
Use Scenario: Generating stable 12V/24V intermediate bus from variable 48V telecom rectifier output under load transients and line surges. IC Role / Device Role / Timing Role: Primary PWM controller managing external nMOSFET, current sensing, and feedback regulation - defines switching timing and fault response. Use Value: 42V transient tolerance and hiccup protection ensure uninterrupted operation during AC line disturbances; >90% efficiency minimizes heat in dense rack-mounted systems. |
Use Scenario: Preboost stage in 48V-powered optical line terminals (OLTs) requiring clean, regulated 52V for laser diode biasing. IC Role / Device Role / Timing Role: High-frequency (2.2MHz) boost controller delivering precise output voltage with fast transient response - governs power stage timing and protection behavior. Use Value: Spread-spectrum EMI reduction meets CISPR-32 Class B limits without added filtering; PVL-regulated DRV ensures consistent MOSFET drive strength. |
| Offline Power Supplies | General-Purpose Point-of-Load |
|
Use Scenario: Auxiliary 15V rail generation from rectified 100–240VAC input in industrial SMPS, where input varies widely and surge immunity is critical. IC Role / Device Role / Timing Role: Wide-input synchronous boost controller providing isolated or non-isolated secondary-side regulation - controls switching frequency, current limit, and soft-start timing. Use Value: 4.5V–36V input range accommodates post-rectifier droop; fixed 9ms soft-start prevents inrush-induced tripping of upstream breakers. |
Use Scenario: Local 5V-to-12V conversion for FPGA I/O banks or ADC reference supplies in embedded test equipment with strict noise and size requirements. IC Role / Device Role / Timing Role: Compact, high-frequency boost controller enabling all-ceramic solution - manages gate drive timing, current sensing, and PGOOD signaling. Use Value: 3mm × 3mm TQFN footprint saves board area; 4µA shutdown current preserves battery charge in portable instruments during sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17292ETCC+ | Supports 1MHz–2.5MHz switching (vs. 100kHz–1MHz); same pinout, package, and feature set - higher frequency enables smaller magnetics. | Better suited for ultra-compact designs needing >1MHz operation; not drop-in compatible due to different RFSET values and oscillator range. | Select MAX17292ETCC+ only when 2.2MHz operation is required and layout accommodates tighter EMI filtering. |
| LM5122MMX/NOPB | Wider 3V–65V input range; integrated high-side gate driver; no PVL regulator - requires external 5V bias for gate drive. | Preferred for ultra-wide VIN applications (e.g., 48V telecom with 60V surges); lacks built-in 5V regulator and spread-spectrum EMI control. | Choose LM5122MMX/NOPB when input may dip below 4.5V or exceed 36V; accept added BOM cost and complexity for external bias. |
Compared with MAX17292ETCC+, MAX17290ETCC+ offers lower-frequency operation ideal for cost-sensitive, thermally constrained designs; versus LM5122MMX/NOPB, it delivers integrated PVL regulation and spread-spectrum EMI reduction at the expense of input voltage headroom.
Availability
MAX17290ETCC+ is available at Aetrix Electronics and suitable for distributed supply regulation, telecom hardware, and general-purpose point-of-load applications requiring stable component supply, long-term industrial lifecycle support, and guaranteed traceable sourcing.
Supply support for MAX17290ETCC+ 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 industrial, automotive, and communications markets - emphasizing reliability, integration, and thermal robustness.
The MAX17290/MAX17292 product line targets high-efficiency, wide-input boost controllers for harsh-environment power conversion - specifically engineered for telecom, automotive front-end, and distributed power architectures where transient immunity and compact size are critical.
FAQ
What is the maximum input voltage the MAX17290ETCC+ can withstand?
The MAX17290ETCC+ has absolute maximum input rating of 42V on the SUP pin, providing transient protection beyond its 4.5V–36V continuous operating range. This allows safe operation during load-dump events in automotive and industrial 24V systems. Sustained input above 36V will trigger shutdown, but brief 42V spikes are tolerated without damage - a key differentiator for front-end preboost stages.
Does the MAX17290ETCC+ support external synchronization, and what is the valid frequency range?
Yes, the MAX17290ETCC+ supports external synchronization via the FSET/SYNC pin across 220kHz to 1000kHz. When an external clock is applied, the internal oscillator is disabled and the device locks to the external signal's falling edge to initiate each switching cycle. This enables precise phase alignment in multi-phase boost converters and EMI reduction through frequency dithering.
Can the MAX17290ETCC+ operate from a 2.5V input supply?
Yes - the MAX17290ETCC+ supports bootstrapped operation down to 2.5V input when the output voltage supplies the SUP pin. This mode bypasses the internal UVLO on the PVL regulator and allows startup from deeply discharged batteries or low-VIN conditions. However, full functionality (e.g., PVL regulation, OVP) requires the PVL voltage to reach ≥4V before enabling switching.
What protection features does the MAX17290ETCC+ include?
The MAX17290ETCC+ integrates multiple hardware-based protections: overvoltage protection (OVP) via dedicated pin, thermal shutdown at 165°C, hiccup-mode short-circuit response after 16 current-limit cycles, PGOOD monitoring with 85–95% thresholds, and fixed 9ms soft-start to limit inrush. These operate independently of external firmware, ensuring fail-safe behavior in safety-critical power systems.
Is the MAX17290ETCC+ pin-compatible with other variants in the MAX17290/MAX17292 family?
Yes - the MAX17290ETCC+ shares identical 12-pin TQFN pinout and footprint with MAX17292ETCC+, MAX17290ETCE+, and MAX17292ETCE+. All variants use the same SUP, EN, GND, DRV, PVL, ISNS, REFIN, OVP, PGOOD, FSET/SYNC, COMP, and FB assignments. Differences lie in internal oscillator range, spread-spectrum enablement, and minor parameter tolerances - not pin function or physical layout.
MAX17290ETCC+ 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)
MAX17290ETCC+ FAQ
1.How can I place an order for MAX17290ETCC+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17290ETCC+ 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 MAX17290ETCC+ reliable?
The price and inventory of MAX17290ETCC+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17290ETCC+ is usually 5 days.
3.What payment methods are accepted for MAX17290ETCC+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17290ETCC+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17290ETCC+?
MAX17290ETCC+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17290ETCC+ 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 MAX17290ETCC+?
For technical support, including MAX17290ETCC+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17290ETCC+ requirements.
6.How does Aetrix verify that MAX17290ETCC+ is sourced from the original manufacturer or authorized distributors?
All MAX17290ETCC+ 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 MAX17290ETCC+ meets industry standards.
7.What is the process for return or replacement of MAX17290ETCC+?
All MAX17290ETCC+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX17290ETCC+, 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 MAX17290ETCC+ part is unused and in its original packaging.
Return procedure for MAX17290ETCC+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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