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Analog Devices Inc./Maxim Integrated MAX17290ETCE+
- Part No.:
- MAX17290ETCE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFQFN Exposed Pad
- Datasheet:
-
MAX17290ETCE+.pdf
- Description:
- IC REG BOOST ADJ 1A 12TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,496
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Product details
Overview
MAX17290ETCE+ 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, 5V internal PVL regulator, and 42V 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+ datasheet, MAX17290ETCE+ pinout, MAX17290ETCE+ application, or MAX17290ETCE+ equivalent, key selection considerations include its 12-pin TQFN package, peak current-mode architecture with programmable slope compensation, 100kHz–1MHz frequency range (MAX17290 variant), OVP/REFIN/FSET/SYNC pin functionality, and compatibility with logic-level nMOSFETs driven by the 5V PVL-regulated DRV output.
Technical Context
The MAX17290ETCE+ implements constant-frequency, peak current-mode PWM control with an internal transconductance error amplifier (700µS gm, 50MΩ output impedance) and fixed 9ms soft-start. Its oscillator supports resistor-programmed frequencies from 100kHz to 1MHz and external synchronization via FSET/SYNC with ≤70ns pulse-width requirement.
It integrates a 5V/10mA low-dropout PVL regulator, 250mV current-sense threshold with leading-edge blanking (60ns), hiccup-mode fault recovery (44ms delay after 16 consecutive current-limit events), and spread-spectrum modulation (±6% frequency dither) for EMI reduction - active only when using internal oscillator (B/D/F versions).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 36V continuous; extends to 2.5V in bootstrapped mode - enables operation from partially discharged batteries or post-regulator rails. |
| Switching Frequency | 100kHz to 1MHz (resistor-programmed); supports external sync from 220kHz to 1000kHz - balances efficiency vs. size in compact designs. |
| Shutdown Current | 4µA typical - minimizes battery drain in always-on systems like automotive telematics or IoT edge nodes. |
| PVL Regulator Output | 4.7V to 5.45V at 10mA - powers 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 activation with 10°C hysteresis - protects MOSFET and inductor during sustained overload or poor heatsinking. |
| PGOOD Accuracy | ±5% window (85–95% rising, 80–90% falling) - ensures reliable system power sequencing and fault detection. |
Pinout & Package
MAX17290ETCE+ 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 PCB ground plane for optimal thermal performance (θJA = 68°C/W on 4-layer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SUP | Power-supply input | Bypassed with ≥1µF ceramic capacitor; accepts 4.5–36V input with 42V transient tolerance. |
| EN | Active-high enable | Logic- or high-voltage–compatible input (1.7V threshold); disables controller and reduces ICC to 4µA. |
| GND | Ground reference | Common return for analog and power sections; connects to exposed pad for thermal conduction. |
| DRV | nMOSFET gate driver output | 5V-referenced, 750mA source / 1000mA sink capability - drives logic-level FETs directly. |
| PVL | 5V internal regulator output | Supplies DRV, REFIN, and external bias; requires ≥2.2µF ceramic capacitor close to pin. |
| ISNS | Current-sense input | Monitors voltage across external sense resistor; includes 60ns blanking to reject MOSFET turn-on spikes. |
| REFIN | Reference input | Accepts 0.5–2V external voltage to set FB regulation point - enables dynamic output adjustment. |
| PGOOD | Open-drain power-good flag | Asserts high after soft-start when VOUT >90% target; pulls low during hiccup or EN deactivation. |
| FSET/SYNC | Frequency set/synchronization input | Resistor-to-GND sets fSW; external clock (220kHz–1000kHz) overrides internal oscillator. |
| COMP | Error amplifier output | Connects to RC compensation network between COMP and GND for loop stability. |
| FB | Feedback input | Regulated to 1V (when REFIN = PVL) or to REFIN value - sets output voltage via resistive divider. |
| EP | Exposed thermal pad | Internally tied to GND; must be soldered to large copper area for θJA ≤68°C/W. |
Key Features
| Feature | Design Value |
|---|---|
| All-ceramic capacitor support | Enables ultra-compact, low-profile boost solutions without electrolytic capacitors - improves reliability and lifetime. |
| Programmable slope compensation | Single-resistor interface at ISNS allows stable current-loop operation above 50% duty cycle - prevents subharmonic oscillation. |
| Spread-spectrum modulation | ±6% frequency dither reduces EMI peak amplitudes - simplifies compliance testing for Class B emissions limits. |
| Bootstrapped low-VIN operation | Enables start-up and regulation down to 2.5V input - supports wide battery discharge ranges in portable equipment. |
| Hiccup-mode short-circuit protection | Disables switching for 44ms after 16 consecutive current-limit events - limits MOSFET stress during sustained faults. |
Applications
| Automotive Front-End Preboost | Industrial Telecom Power Supply |
|---|---|
Use Scenario: Boosting 9–16V automotive battery to 24V/48V intermediate bus for infotainment and ADAS modules under cold-crank (6.5V) and load-dump (42V) conditions. IC Role / Device Role / Timing Role: Primary PWM controller managing external nMOSFET, PVL-regulated gate drive, and OVP-protected output regulation. Use Value: 42V transient tolerance and 2.5V bootstrapped start-up ensure uninterrupted operation across full automotive voltage envelope. |
Use Scenario: Generating stable 48V output from 24V or 36V distributed supply in telecom line cards and base station power shelves. IC Role / Device Role / Timing Role: High-frequency (2.2MHz) synchronous boost controller enabling small magnetics and low-output-ripple design. Use Value: 100kHz–1MHz programmable switching frequency allows optimization for efficiency (low-f) or size (high-f) per system constraints. |
| LED Lighting Driver Preboost | Industrial Point-of-Load Regulation |
Use Scenario: Providing regulated 36V–60V preboost stage for high-power LED strings in streetlight and horticultural lighting systems. IC Role / Device Role / Timing Role: Constant-frequency peak current-mode controller with adjustable slope compensation for stable dimming and thermal management. Use Value: 9ms internal soft-start and PGOOD signaling prevent inrush-induced LED current overshoot and enable safe system sequencing. |
Use Scenario: Local 12V-to-24V conversion in PLC I/O modules and factory automation controllers where space and thermal headroom are constrained. IC Role / Device Role / Timing Role: Compact TQFN-based boost controller with integrated 5V PVL rail - eliminates need for auxiliary LDO. Use Value: All-ceramic capacitor compatibility and 4µA shutdown current reduce BOM count and extend battery backup runtime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17292ETCE+ | Higher switching frequency range (1MHz–2.5MHz); identical pinout and package - no PCB change required. | Preferred for ultra-compact designs requiring <1µH inductors and minimal output capacitance. | Select MAX17292ETCE+ when board space is critical and higher-frequency operation is acceptable for efficiency trade-off. |
| LM5122MMX/NOPB | Wider input range (3V–75V); no integrated PVL regulator - requires external 5V bias for gate drive. | Suitable for high-input industrial systems (e.g., 48V telecom rectifiers) where PVL integration is unnecessary. | Choose LM5122MMX/NOPB when operating above 36V input or when external bias is already available and thermal budget permits larger solution size. |
Compared with MAX17292ETCE+, MAX17290ETCE+ offers lower-frequency operation for improved light-load efficiency and reduced gate-drive losses; compared with LM5122MMX/NOPB, it provides integrated PVL regulation and smaller footprint but lacks high-voltage input capability.
Availability
MAX17290ETCE+ is available at Aetrix Electronics and suitable for automotive front-end preboost, industrial telecom power supplies, LED lighting driver preboost, and general-purpose point-of-load regulation requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX17290ETCE+ 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 gate drive and protection - engineered for reliability in harsh environments including automotive battery systems and telecom infrastructure.
FAQ
What is the maximum input voltage transient rating for MAX17290ETCE+?
The MAX17290ETCE+ features 42V input transient protection, meaning it can withstand voltage spikes up to 42V on the SUP pin without damage or functional interruption. This specification is critical for automotive applications subject to load-dump events and ensures robust operation in electrically noisy environments where the MAX17290ETCE+ is commonly deployed as a preboost controller.
Does MAX17290ETCE+ require an external 5V supply for the gate driver?
No, MAX17290ETCE+ does not require an external 5V supply. It integrates a 5V PVL regulator that powers the DRV output and other internal circuitry. The PVL pin delivers 4.7V to 5.45V at up to 10mA and must be bypassed with ≥2.2µF ceramic capacitance placed adjacent to the pin - eliminating dependency on external bias rails in the MAX17290ETCE+ design.
Can MAX17290ETCE+ operate below 4.5V input?
Yes, MAX17290ETCE+ can operate with input voltages as low as 2.5V when configured in bootstrapped mode - where the converter's output supplies the SUP pin. This mode enables operation during deep battery discharge in automotive or portable systems, provided the output voltage exceeds the minimum SUP requirement and the PVL regulator remains functional.
What is the purpose of the REFIN pin on MAX17290ETCE+?
The REFIN pin on MAX17290ETCE+ allows dynamic adjustment of the feedback reference voltage from 0.5V to 2V, enabling real-time output voltage control without changing the FB resistor divider. When REFIN is tied to PVL, the FB pin regulates to 1V; otherwise, the FB regulation point equals the applied REFIN voltage - supporting features like programmable output or adaptive load regulation in the MAX17290ETCE+ application.
How does the hiccup mode function in MAX17290ETCE+ during output short-circuit?
In MAX17290ETCE+, hiccup mode activates after 16 consecutive current-limit events while PGOOD is low, halting switching for 44ms before initiating a new 9ms soft-start cycle. This behavior limits average power dissipation in the external MOSFET and inductor during sustained faults, protecting components from thermal runaway - a key safety feature confirmed in the MAX17290ETCE+ datasheet's protection section.
MAX17290ETCE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 12-WFQFN Exposed Pad
- Packaging:
- Tube
- 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+ FAQ
1.How can I place an order for MAX17290ETCE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17290ETCE+ 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+ reliable?
The price and inventory of MAX17290ETCE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17290ETCE+ is usually 5 days.
3.What payment methods are accepted for MAX17290ETCE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17290ETCE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17290ETCE+?
MAX17290ETCE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17290ETCE+ 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+?
For technical support, including MAX17290ETCE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17290ETCE+ requirements.
6.How does Aetrix verify that MAX17290ETCE+ is sourced from the original manufacturer or authorized distributors?
All MAX17290ETCE+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX17290ETCE+?
All MAX17290ETCE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX17290ETCE+, 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+ part is unused and in its original packaging.
Return procedure for MAX17290ETCE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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