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Analog Devices Inc./Maxim Integrated MAX17580ATC+T
- Part No.:
- MAX17580ATC+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
MAX17580ATC+T.pdf
- Description:
- IC REG CHG PUMP ADJ 300MA 12TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,909
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Product details
Overview
MAX17580ATC+T from Analog Devices is a high-voltage, synchronous, inverting DC-DC converter IC with integrated MOSFETs, peak current-mode control, and internal compensation. It delivers up to 300mA output current, supports adjustable negative output voltages from –0.9V to –36V, operates across a 4.5V to (60V – |VOUT|) input range, and achieves 88.4% peak efficiency - used in industrial gate-drive circuits and high-voltage single-board systems.
For engineers reviewing the MAX17580ATC+T datasheet, MAX17580ATC+T pinout, MAX17580ATC+T application, or MAX17580ATC+T equivalent, key selection considerations include its DCM light-load efficiency mode, system-ground-referenced EN/UVLO/RESET pins, –40°C to +125°C operating temperature, and TDFN-EP (3mm × 3mm, 12-pin) package compatibility with compact point-of-load designs.
Technical Context
The MAX17580ATC+T implements peak current-mode control with internal loop compensation and operates exclusively in discontinuous conduction mode (DCM) for superior light-load efficiency. Its switching frequency is adjustable from 400kHz to 2.2MHz via an external resistor on RT/SYNC or synchronizable to an external clock within ±40% of the programmed fSW.
It features a dedicated SOUT reference node for Kelvin feedback sensing, integrated high-side (0.975Ω typical RDS-ON) and low-side (0.443Ω typical RDS-ON) nMOSFETs, and hiccup-mode overcurrent protection triggered at 0.893A runaway current limit with 32,768-cycle timeout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Polarity | Inverting: generates regulated negative output voltage referenced to system ground |
| Input Voltage Range | 4.5V to (60V – |VOUT|): enables wide-input operation while respecting absolute max ratings |
| Max Output Current | 300mA: sustained load capability with thermal derating above +70°C ambient |
| Feedback Accuracy | ±1.3% over –40°C to +125°C: ensures stable regulation across industrial temperature range |
| Switching Frequency | 400kHz–2.2MHz (adjustable): supports small magnetics and EMI optimization |
| Shutdown Current | 6.2μA: minimizes system standby power loss |
| Thermal Shutdown | 165°C with 10°C hysteresis: protects junction during overload or poor heatsinking |
Pinout & Package
MAX17580ATC+T is housed in a thermally enhanced 12-pin TDFN-EP package (3mm × 3mm, TD1233+1C), with exposed pad (EP) electrically connected to SOUT and thermally tied to PCB copper for improved θJA = 41°C/W performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Power input | Accepts 4.5V–(60V–|VOUT|); requires ≥1μF X7R ceramic decoupling near pin |
| EN/UVLO | Enable & input UVLO | System-ground-referenced; rising threshold 1.229V, falling 1.09V - eliminates level shifters |
| RESET | Open-drain status output | Asserts low when VFB < 92% of regulation; deasserts after 1024 cycles at >95% |
| SS | Soft-start timing | Capacitor-to-SOUT sets monotonic startup; prevents inrush into prebiased outputs |
| VCC | Internal 5V LDO output | Bypassed with 2.2μF ceramic to SOUT; powers internal circuitry only - no external loading |
| RT/SYNC | Frequency programming/sync | Resistor sets fSW (400kHz–2.2MHz); accepts AC-coupled external clock (1.1–1.4× fSW) |
| FB | Voltage feedback input | Monitors output via resistor divider; regulation setpoint = 0.9V ±1.3% over full temp range |
| SOUT | Reference node | Internal control ground; connects to output capacitor Kelvin sense point and EP |
| GND | System ground | Power ground return; must be star-connected to minimize noise coupling |
| BST | Bootstrap supply | 0.1μF ceramic between BST and LX powers high-side driver; critical for MOSFET gate drive |
| LX | Switching node | Connects to inductor; high-impedance during shutdown; carries peak currents up to 0.53A RMS |
| OUT | Negative output terminal | Low-side MOSFET source; connects directly to output capacitor and load return path |
Key Features
| Feature | Design Value |
|---|---|
| DCM light-load operation | Eliminates reverse inductor current, improving efficiency below ~30mA without requiring external diode |
| System-ground-referenced I/O | EN/UVLO, RESET, and RT/SYNC accept signals referenced to GND - removes level-shifter components |
| Monotonic prebiased startup | Prevents sinking current from existing output voltage; enables safe hot-plug and rail sequencing |
| Integrated MOSFETs & compensation | Reduces BOM count by 6+ external parts (FETs, compensation network, bootstrap diode) |
| Hiccup-mode OCP | 32,768-cycle shutdown timeout limits power dissipation during sustained short-circuit conditions |
| Adjustable soft-start | Capacitor on SS pin controls ramp rate - avoids overshoot and enables precise power-rail sequencing |
Applications
| Industrial Gate-Drive Power | Motion Control Bias Supply |
|---|---|
Use Scenario: Powers isolated gate drivers in servo motor inverters where negative bias voltage improves turn-off immunity against dV/dt noise. IC Role / Device Role / Timing Role: Inverting DC-DC converter generating –12V or –15V from 24V bus; regulates with ±1.3% accuracy across –40°C to +125°C. Use Value: Enables robust IGBT/MOSFET gate control under harsh industrial transients without external level shifters or discrete regulators. | Use Scenario: Supplies auxiliary bias rails for position encoder interfaces and Hall-effect sensor signal conditioning in robotic joints. IC Role / Device Role / Timing Role: Point-of-load inverter delivering –5V/200mA from 48V main rail; uses DCM mode to maintain >85% efficiency at 10mA standby load. Use Value: Reduces thermal footprint and eliminates discrete inverter stages while supporting wide input variation due to battery droop. |
| Wall-Transformer Replacement | High-Voltage Single-Board System |
Use Scenario: Replaces linear wall adapters in DIN-rail mounted PLC I/O modules requiring isolated –12V for analog front-end op-amps. IC Role / Device Role / Timing Role: Compact inverting buck-boost converter accepting 9–36V DC input; delivers regulated –12V with 6.2μA shutdown current. Use Value: Cuts board area by >40% vs. transformer-based solutions and meets EN 61000-4-5 surge immunity via inherent high-VIN tolerance. | Use Scenario: Generates negative auxiliary rails on high-density test equipment backplanes where space prohibits multiple converters. IC Role / Device Role / Timing Role: Single-chip inverter producing –3.3V, –5V, and –12V from 48V bus using shared inductor and synchronized RT/SYNC pins. Use Value: Enables multi-rail generation with minimal layout area and EMI coherence - no need for separate clock sources or phase alignment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar inverting DC-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX17579ATC+T | CCM-only operation; constant-frequency switching; higher no-load current (3.6mA vs. 1.5mA) | Better suited for EMI-sensitive applications requiring fixed fSW; less efficient below ~50mA load | Select MAX17579ATC+T when deterministic frequency and low ripple are prioritized over light-load efficiency. |
| LM5160QPWPRQ1 | Non-synchronous buck-boost; external FETs required; no integrated compensation or SOUT reference | Requires 6+ additional components; supports wider VIN (3–65V) but lacks DCM optimization and RESET monitoring | Choose LM5160QPWPRQ1 only if automotive AEC-Q100 qualification is mandatory and design can accommodate larger solution size. |
Compared with MAX17579ATC+T, the MAX17580ATC+T trades fixed-frequency stability for 2.1× lower no-load current and superior light-load efficiency; versus LM5160QPWPRQ1, it delivers drop-in integration with built-in protection, compensation, and system-ground I/O - reducing design cycle time by ~3 weeks.
Availability
MAX17580ATC+T is available at Aetrix Electronics and suitable for industrial control power supplies, gate-drive circuits, and motion control systems requiring stable component supply, long-term manufacturability, and guaranteed RoHS-compliant sourcing.
Supply support for MAX17580ATC+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
Analog Devices is a global leader in high-performance analog, mixed-signal, and power management semiconductors, serving industrial, automotive, communications, and healthcare markets with precision, reliability, and innovation.
The MAX17580ATC+T belongs to the Himalaya series of high-voltage DC-DC converters designed specifically for compact, thermally efficient, and simplified industrial power architectures - emphasizing integration, ruggedness, and ease of use in harsh environments.
FAQ
What is the maximum allowable input voltage for MAX17580ATC+T when configured for –24V output?
The MAX17580ATC+T maximum input voltage is limited to 60V minus the absolute value of the output voltage. For a –24V output, the upper limit is 60V – 24V = 36V. This constraint ensures internal voltage ratings (e.g., IN-to-GND ≤ +65V) are not exceeded. The device will operate safely from 4.5V up to this 36V maximum, provided thermal limits are observed.
Does MAX17580ATC+T support synchronization to an external clock, and what are the valid frequency and duty-cycle ranges?
Yes, the MAX17580ATC+T supports external clock synchronization via the RT/SYNC pin. The external clock frequency must fall within 1.1× to 1.4× the resistor-programmed switching frequency (e.g., 440–560kHz for a 400kHz base). Valid duty cycle is 10%–90%, with minimum pulse width of 100ns. The clock may be referenced to either GND or SOUT, and requires AC coupling through a calculated CSYNC capacitor.
How does the MAX17580ATC+T handle startup into a prebiased output condition?
The MAX17580ATC+T implements monotonic prebiased startup: both high-side and low-side MOSFETs remain off until the SS pin voltage exceeds the FB pin voltage. This prevents the IC from sinking current from an existing output voltage. Once VSS > VFB, soft-start ramps VFB smoothly to 0.9V, enabling controlled output voltage rise without undershoot or oscillation - critical for hot-swap and multi-rail sequencing.
What is the function of the SOUT pin on MAX17580ATC+T, and why must it connect to the exposed pad (EP)?
The SOUT pin serves as the internal control ground reference for the error amplifier, current-sense amplifier, and RESET comparator - distinct from system GND. It must be connected to the EP (exposed pad) and routed via Kelvin connection to the output capacitor's negative terminal. This configuration ensures accurate feedback sensing, minimizes ground bounce, and provides optimal thermal conduction path for the 1951mW power dissipation rating.
Can the MAX17580ATC+T generate positive output voltages, or is it strictly limited to inverting operation?
The MAX17580ATC+T is strictly an inverting DC-DC converter and cannot generate positive output voltages. Its topology uses the OUT pin as the low-side switch source and SOUT as the reference node, inherently producing negative VOUT relative to system GND. To obtain positive rails, a separate non-inverting converter (e.g., MAX17574) or external inverting stage would be required - the MAX17580ATC+T itself only supports –0.9V to –36V output range.
MAX17580ATC+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 12-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Negative
- Topology:
- Charge Pump
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- -0.9V
- Voltage - Output (Max):
- -36V
- Current - Output:
- 300mA
- Frequency - Switching:
- 400kHz ~ 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-TDFN (3x3)
MAX17580ATC+T FAQ
1.How can I place an order for MAX17580ATC+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX17580ATC+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 MAX17580ATC+T reliable?
The price and inventory of MAX17580ATC+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX17580ATC+T is usually 5 days.
3.What payment methods are accepted for MAX17580ATC+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX17580ATC+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX17580ATC+T?
MAX17580ATC+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX17580ATC+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 MAX17580ATC+T?
For technical support, including MAX17580ATC+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX17580ATC+T requirements.
6.How does Aetrix verify that MAX17580ATC+T is sourced from the original manufacturer or authorized distributors?
All MAX17580ATC+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 MAX17580ATC+T meets industry standards.
7.What is the process for return or replacement of MAX17580ATC+T?
All MAX17580ATC+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX17580ATC+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 MAX17580ATC+T part is unused and in its original packaging.
Return procedure for MAX17580ATC+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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