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Analog Devices Inc./Maxim Integrated MAX17292ETCF+
- Part No.:
- MAX17292ETCF+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFQFN Exposed Pad
- Datasheet:
-
MAX17292ETCF+.pdf
- Description:
- IC REG BOOST ADJ 1A 12TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:345
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Product details
Overview
MAX17292ETCF+ from Maxim Integrated is a high-efficiency, synchronous step-up DC-DC controller optimized for wide-input industrial and telecom 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 supports bootstrapped operation down to 2.5V input-enabling use in battery-fed preboost stages for LED lighting and distributed supply regulation.
For engineers reviewing the MAX17292ETCF+ datasheet, MAX17292ETCF+ pinout, MAX17292ETCF+ application, or MAX17292ETCF+ equivalent, key selection considerations include its 1MHz–2.5MHz adjustable switching frequency, PVL-regulated 5V gate drive, programmable slope compensation, spread-spectrum EMI reduction, and OVP/PGOOD/hiccup-mode protection architecture.
Technical Context
The MAX17292ETCF+ implements constant-frequency peak current-mode control with an internal transconductance error amplifier (700µS gm, 50MΩ output impedance) and 1V FB reference accuracy of ±1%. Its oscillator is resistor-programmable (1MHz–2.5MHz) or externally synchronizable via FSET/SYNC, and includes ±6% spread-spectrum modulation in B/D/F versions to reduce EMI peaks.
It integrates a 5V PVL regulator (4.7V–5.45V output, 10mA capable), 180° phase-shifted SYNCO output for multiphase interleaving, and robust protection including hiccup-mode recovery after 16 consecutive current-limit cycles, thermal shutdown at 165°C, and 42V input transient tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 36V continuous; extends to 2.5V in bootstrapped mode-supports automotive battery start-stop and low-Vin backup systems. |
| Switching Frequency | 1MHz to 2.5MHz (resistor- or sync-programmable); enables compact magnetics and high-density PCB layout. |
| Peak Efficiency | >90% at full load-reduces thermal stress and improves system power density in space-constrained telecom hardware. |
| Shutdown Current | 4µA typical-enables ultra-low-power standby in always-on industrial IoT nodes. |
| PVL Regulator Output | 4.7V to 5.45V @ 10mA-powers external logic and provides stable 5V gate drive for logic-level nMOSFETs. |
| Current-Sense Threshold | 250mV ±12%-sets precise overcurrent limit with external sense resistor; supports accurate peak-current protection. |
| Thermal Shutdown | 165°C with 10°C hysteresis-prevents permanent damage during sustained overload or poor heatsinking. |
Pinout & Package
MAX17292ETCF+ is housed in a 12-pin 3mm × 3mm TQFN-EP package with exposed pad (internally connected to GND) for enhanced thermal dissipation. The package supports -40°C to +85°C ambient operation and requires connection to a large ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SUP | Power-supply input | Accepts 4.5V–36V input; bypass capacitor ≥1µF required between SUP and GND for stability. |
| EN | Active-high enable | Logic- or high-voltage–compatible input; pulls device into <4µA shutdown when low. |
| GND | Ground reference | Primary analog/digital return; connects internally to exposed pad for thermal conduction. |
| DRV | nMOS gate driver output | Swings 0V to ~5V (PVL-referenced); sources 750mA/sinks 1000mA peak for fast MOSFET switching. |
| PVL | 5V internal regulator output | Stable 5V supply for DRV and external circuitry; requires ≥2.2µF ceramic capacitor close to pin. |
| ISNS | Current-sense input | Monitors voltage across external sense resistor; 250mV threshold triggers cycle termination. |
| REFIN | Reference input | Accepts 0.5V–2V external voltage to dynamically adjust output voltage; tied to PVL for fixed 1V FB reference. |
| PGOOD | Open-drain power-good | Asserts high after soft-start when VOUT ≥90% of target; goes low during hiccup or EN deassertion. |
| FSET/SYNC | Frequency set / sync input | Resistor-to-GND sets fSW (1–2.5MHz); external clock (1–2.5MHz) enables system-wide synchronization. |
| COMP | Error amplifier output | Connects to RC compensation network between COMP and GND for loop stability tuning. |
| FB | Feedback input | Regulated to 1V (or REFIN value); resistor divider from VOUT to GND sets output voltage. |
| OVP | Overvoltage protection input | Disables switching when voltage exceeds 110% of FB; resumes at 107.5%-protects downstream loads. |
Key Features
| Feature | Design Value |
|---|---|
| Spread-spectrum oscillator | ±6% frequency dithering reduces EMI peak amplitude-simplifies compliance testing in noise-sensitive telecom hardware. |
| Programmable slope compensation | Single-resistor adjustment (RSCOMP) stabilizes current loop above 50% duty cycle-enables reliable high-ratio boost operation. |
| 180° SYNCO output | Phase-shifted clock enables two-phase interleaved boost-cuts input/output ripple by ~70% and spreads thermal load. |
| Fixed 9ms soft-start | Linear ramp of internal reference prevents inrush current-eliminates need for external soft-start circuitry in point-of-load designs. |
| Hiccup-mode fault recovery | After 16 current-limit events, enters 44ms off-time before retry-protects MOSFET and inductor during sustained short-circuit. |
Applications
| Distributed Supply Regulation | Telecom Hardware |
|---|---|
Use Scenario: Local 12V–24V rail generation from 48V backplane in modular base station shelves. IC Role / Device Role / Timing Role: Primary synchronous boost controller managing isolated intermediate bus conversion. Use Value: 2.5MHz operation allows sub-1mm inductors; 42V transient rating withstands telecom surge standards (IEC 61000-4-5). |
Use Scenario: Preboost stage feeding 3.3V/5V POL regulators in optical line terminal (OLT) cards. IC Role / Device Role / Timing Role: High-efficiency front-end controller enabling compact, fanless cooling design. Use Value: >90% efficiency at 2A load reduces board temperature rise by >8°C vs. legacy controllers; PVL powers local logic. |
| Offline Power Supplies | General-Purpose Point-of-Load |
Use Scenario: Auxiliary 5V/3A rail generation from rectified AC line (after bulk cap) in industrial SMPS. IC Role / Device Role / Timing Role: Secondary boost controller compensating for line sag and maintaining regulated output. Use Value: Bootstrapped 2.5V operation ensures startup even during brownout; OVP protects downstream AC-DC ICs. |
Use Scenario: Compact 5V-to-12V boost for FPGA I/O banks or sensor interface modules in edge devices. IC Role / Device Role / Timing Role: Flexible, low-noise DC-DC controller supporting dynamic voltage scaling via REFIN. Use Value: REFIN pin enables real-time output adjustment (0.5V–2V input → 5V–20V output); spread spectrum meets Class B EMC limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PWM boost controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17290ETCF+ | Lower switching frequency range (100kHz–1MHz); no spread-spectrum; same pinout and package. | Better suited for cost-sensitive, lower-frequency designs where EMI filtering is less critical and larger magnetics acceptable. | Select MAX17290ETCF+ when 1MHz max frequency suffices and spread-spectrum is unnecessary. |
| LM5122MMX/NOPB | Wider Vin (3V–65V); integrated high-side gate driver; no PVL regulator; different pinout and control architecture (voltage-mode). | Preferred for ultra-wide-input applications (e.g., 12V–48V battery systems) requiring single-chip integration without external LDO. | Choose LM5122MMX/NOPB only if input exceeds 36V or integrated high-side driver is required-requires PCB redesign. |
Compared with MAX17290ETCF+, MAX17292ETCF+ delivers higher-frequency operation and built-in EMI reduction, while LM5122MMX/NOPB trades PVL convenience and spread-spectrum for broader input range and voltage-mode control-making MAX17292ETCF+ optimal for compact, EMI-sensitive 24V/48V telecom and industrial boost designs.
Availability
MAX17292ETCF+ 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 lifecycle support, and traceable sourcing for industrial OEMs.
Supply support for MAX17292ETCF+ 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 for harsh-environment power conversion-emphasizing reliability, EMI control, and flexible configuration in telecom, LED lighting, and distributed power systems.
FAQ
What is the maximum input voltage transient rating for MAX17292ETCF+?
The MAX17292ETCF+ features 42V input transient protection, meaning it can withstand voltage spikes up to 42V on the SUP pin without damage or functional interruption. This rating applies across the full operating temperature range (-40°C to +85°C) and supports robust operation in automotive and industrial environments with noisy power rails. The 42V rating is distinct from the continuous 36V maximum input voltage.
Does MAX17292ETCF+ support external synchronization, and what is the valid frequency range?
Yes, MAX17292ETCF+ supports external synchronization via the FSET/SYNC pin. The valid external sync frequency range is 1MHz to 2.5MHz, matching its internal oscillator range. A logic-level signal with pulse width >70ns and compatible voltage levels (high threshold = 2.5V, low threshold = 1V) must be applied. When synchronized, the internal oscillator is disabled and the external clock fully controls switching timing.
How does the PVL regulator function in MAX17292ETCF+, and what load can it drive?
The PVL regulator in MAX17292ETCF+ is an internal LDO delivering a nominal 5V output (4.7V–5.45V) referenced to GND. It powers the DRV gate driver and can supply up to 10mA to external circuitry. A minimum 2.2µF ceramic capacitor must be placed directly between PVL and GND. Its undervoltage lockout activates below 3.8V (typ), ensuring reliable gate drive even under low-input conditions.
What protection features are integrated into MAX17292ETCF+?
MAX17292ETCF+ integrates multiple protection features: overvoltage protection (OVP) triggered at 110% of FB voltage, hiccup-mode recovery after 16 consecutive current-limit events, thermal shutdown at 165°C with 10°C hysteresis, PGOOD monitoring with 85–90% output threshold, and leading-edge blanking on ISNS to suppress MOSFET switching spikes. These operate autonomously without external components.
Can MAX17292ETCF+ operate with input voltage below 4.5V, and how?
Yes, MAX17292ETCF+ can operate with input as low as 2.5V using bootstrapped mode-where the converter's own output supplies the SUP pin. This requires proper sequencing: first power the device from a separate source or auxiliary rail to initiate startup, then transition SUP to the boosted output. The internal UVLO monitors PVL, not SUP, enabling this low-Vin operation once regulation is established.
MAX17292ETCF+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 12-WFQFN Exposed Pad
- Packaging:
- Strip
- 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:
- 12-TQFN (3x3)
MAX17292ETCF+ FAQ
1.How can I place an order for MAX17292ETCF+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17292ETCF+ 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 MAX17292ETCF+ reliable?
The price and inventory of MAX17292ETCF+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17292ETCF+ is usually 5 days.
3.What payment methods are accepted for MAX17292ETCF+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17292ETCF+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17292ETCF+?
MAX17292ETCF+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17292ETCF+ 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 MAX17292ETCF+?
For technical support, including MAX17292ETCF+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17292ETCF+ requirements.
6.How does Aetrix verify that MAX17292ETCF+ is sourced from the original manufacturer or authorized distributors?
All MAX17292ETCF+ 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 MAX17292ETCF+ meets industry standards.
7.What is the process for return or replacement of MAX17292ETCF+?
All MAX17292ETCF+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX17292ETCF+, 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 MAX17292ETCF+ part is unused and in its original packaging.
Return procedure for MAX17292ETCF+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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