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Analog Devices Inc./Maxim Integrated MAX15062CATA+T
- Part No.:
- MAX15062CATA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WFDFN
- Datasheet:
-
MAX15062CATA+T.pdf
- Description:
- IC REG BUCK ADJ 300MA 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,638
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Product details
Overview
The MAX15062CATA+T from Analog Devices is a 60V-input, 300mA synchronous step-down DC-DC converter with integrated high-side pMOS and low-side nMOS FETs, fixed 4.5V–60V input range, adjustable 0.9V to 0.89×VIN output (via FB/VOUT resistor divider), peak efficiency of 92%, and operation across –40°C to +125°C ambient. It delivers regulated power in industrial sensors and 4–20mA current-loop transmitters.
For engineers reviewing the MAX15062CATA+T datasheet, MAX15062CATA+T pinout, MAX15062CATA+T application, or MAX15062CATA+T equivalent, key selection criteria include its PFM/PWM mode selectability via MODE pin, internal soft-start (4.1ms), open-drain RESET for output monitoring, EN/UVLO programmability, and TDFN-8 (2mm × 2mm) package compatibility with ultra-compact PCB layouts.
Technical Context
The MAX15062CATA+T employs peak-current-mode control with internal slope compensation and a latched MODE pin that determines startup behavior: grounded MODE enables forced-PWM (fixed 500kHz switching), while unconnected MODE enables light-load PFM with pulse-skipping and zero negative inductor current. Its internal 5V LDO (VCC) powers gate drivers and logic, with 4.75V–5.25V output and 150mV dropout at 5mA.
It integrates hiccup-mode overcurrent protection (0.56A peak limit, 0.66A runaway limit), monotonic startup into prebiased outputs, and thermal shutdown at 166°C with 10°C hysteresis. The FB/VOUT pin regulates output using an internal 0.9V reference (±1.5% over temperature), supporting both fixed-output variants (A/B) and the adjustable MAX15062C variant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 60V - supports wide industrial input rails including 24V, 36V, and 48V systems without external pre-regulation. |
| Output Current | Up to 300mA - sufficient for powering microcontrollers, analog front-ends, and isolated interface ICs in point-of-load applications. |
| Output Voltage Range | 0.9V to 0.89 × VIN - adjustable via external resistor divider on FB/VOUT, enabling custom rail generation (e.g., 2.5V, 3.3V, 5V, 12V). |
| Switching Frequency | 465kHz to 535kHz - fixed-frequency PWM mode ensures EMI predictability; PFM mode disables at >55mA load. |
| Peak Efficiency | 92% - achieved at mid-load with ceramic input/output capacitors and low RDS(ON) MOSFETs (1.75Ω HS / 0.55Ω LS at +25°C). |
| Shutdown Current | 2.2µA (typ) - enables ultra-low-power standby in battery-backed or energy-harvesting systems. |
| Operating Temperature | –40°C to +125°C ambient - qualified for harsh industrial environments including process control and HVAC equipment. |
Pinout & Package
MAX15062CATA+T is housed in an 8-pin, 2mm × 2mm TDFN package with exposed thermal pad (pin 7 GND). The compact footprint supports high-density industrial PCBs and enables efficient thermal dissipation (θJA = 162°C/W, θJC = 20°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power Input | Primary DC input connection; requires ≥1µF X7R ceramic bypass capacitor to GND for stability and EMI suppression. |
| EN/UVLO (Pin 2) | Enable & Input UVLO | Active-high enable with programmable turn-on threshold (1.215V typ rising); resistor divider from VIN sets precise input voltage activation point. |
| VCC (Pin 3) | Internal LDO Output | 5V regulated supply for internal circuitry and gate drivers; must be bypassed with ≥1µF ceramic capacitor to GND. |
| FB/VOUT (Pin 4) | Feedback Input | Connects to resistor divider for adjustable output; internal 0.9V reference enables VOUT = 0.9V × (1 + R1/R2) up to 0.89 × VIN. |
| MODE (Pin 5) | Control Mode Select | Latched at power-up: GND = forced-PWM (constant frequency); floating = PFM (pulse-skipping, high light-load efficiency). |
| RESET (Pin 6) | Open-Drain Monitor | Pulls low when VOUT < 92% regulation; high-impedance 2ms after VOUT > 95%; requires external pull-up for system reset signaling. |
| GND (Pin 7) | Power & Signal Ground | Common return path for VIN, VCC, FB/VOUT, and LX; must connect to low-impedance ground plane under exposed pad. |
| LX (Pin 8) | Switch Node | Connection to inductor switch node; high-impedance during shutdown; carries full switching current (±800mA RMS). |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous MOSFET Integration | Eliminates external Schottky diode and reduces conduction losses-enables >92% peak efficiency with minimal BOM count. |
| Programmable EN/UVLO Threshold | Allows precise input-voltage turn-on control (e.g., delay startup until 24V rail stabilizes), avoiding brown-out during power sequencing. |
| Monotonic Prebias Startup | Enables safe soft-start into existing output voltage (e.g., multi-rail FPGA or MCU systems), preventing reverse current or output collapse. |
| Internal Compensation & Soft-Start | Reduces design time: no external compensation network required; 4.1ms controlled ramp prevents output overshoot and inrush stress. |
| Hiccup-Mode Overcurrent Protection | Auto-retries after fault clearance-protects against sustained short-circuit loads without latch-off, improving system reliability in field-deployed equipment. |
Applications
| Industrial Sensor Power Supply | 4–20mA Current Loop Transmitter |
|---|---|
Use Scenario: Powers analog sensor signal conditioning circuitry (e.g., strain gauge amplifier, RTD interface) in factory-floor environments with fluctuating 24V DC bus. IC Role / Device Role / Timing Role: Primary step-down regulator delivering stable 3.3V or 5V from 12–48V industrial rail; provides RESET signal for sensor health monitoring. Use Value: Wide 4.5V–60V input tolerance accommodates line dips and surges; –40°C to +125°C rating ensures operation inside enclosures near motors or boilers. | Use Scenario: Supplies regulated voltage to op-amps, DACs, and loop drivers in two-wire 4–20mA transmitters used for pressure, flow, or temperature measurement. IC Role / Device Role / Timing Role: Point-of-load DC-DC converter generating 5V or 12V rail; MODE pin configures PFM for low quiescent current during sleep/idle states. Use Value: 2.2µA shutdown current extends battery life in loop-powered devices; internal soft-start prevents current-loop disturbance during power-up. |
| HV LDO Replacement | Process Control I/O Module |
Use Scenario: Replaces inefficient 60V-input linear regulators in PLC backplanes or distributed I/O terminals where heat dissipation is constrained. IC Role / Device Role / Timing Role: High-efficiency buck converter stepping 36V or 48V bus down to 5V/3.3V for digital logic and communication interfaces (RS-485, CAN). Use Value: 92% peak efficiency reduces board-level thermal load vs. linear solution; TDFN-8 footprint matches legacy LDO land patterns for drop-in upgrade. | Use Scenario: Powers microcontroller, ADC, and isolation barrier in modular process controllers handling analog inputs/outputs and fieldbus communication. IC Role / Device Role / Timing Role: Main power supply with RESET monitoring for system-level fault detection; EN/UVLO programmed to coordinate with main system enable sequence. Use Value: Built-in hiccup-mode OCP and thermal shutdown ensure robustness during transient overloads common in motor control feedback loops. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5164QDDARQ1 | Automotive AEC-Q100 qualified; 3–65V input; 300mA; requires external compensation; no integrated VCC LDO. | Targeted for automotive body electronics; lacks RESET and prebias startup features. | Choose for automotive-grade designs requiring extended temp range (–40°C to +150°C junction) and functional safety support. |
| TPS54202DRCT | 2.9–60V input; 2A output; 500kHz fixed freq; integrated 5V LDO; no PFM mode; smaller 10-pin WSON package. | Higher current capability but larger solution size; no hiccup-mode OCP or programmable EN/UVLO. | Choose when >300mA load current is required and PFM efficiency is not critical. |
Compared with LM5164QDDARQ1 and TPS54202DRCT, the MAX15062CATA+T uniquely combines adjustable output, integrated RESET, monotonic prebias startup, and sub-µA shutdown in a 2mm × 2mm TDFN-making it optimal for space-constrained, high-reliability industrial point-of-load designs.
Availability
MAX15062CATA+T is available at Aetrix Electronics and suitable for industrial sensors, 4–20mA current-loop transmitters, and HV LDO replacement applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MAX15062CATA+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 digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX15062 series is part of Analog Devices' high-voltage power management portfolio, designed specifically for ruggedized industrial point-of-load conversion where wide input range, small size, and reliability under thermal stress are critical.
FAQ
What output voltage options does the MAX15062CATA+T support?
The MAX15062CATA+T is the adjustable-output variant of the MAX15062 family and supports output voltages from 0.9V up to 0.89 × VIN, set via an external resistor divider on the FB/VOUT pin. Its internal 0.9V reference (±1.5% over temperature) enables precise regulation-e.g., 3.3V (R1/R2 = 2.67), 5V (R1/R2 = 4.56), or 12V (R1/R2 = 12.33)-without requiring different part numbers.
How does the MODE pin affect MAX15062CATA+T operation?
The MODE pin on the MAX15062CATA+T is latched at power-up and determines control mode: grounding MODE forces constant-frequency PWM operation (465–535kHz) for EMI-sensitive applications, while leaving MODE unconnected enables PFM mode-skipping pulses at light loads to achieve >85% efficiency even at 1mA. Mode changes during runtime have no effect.
Can the MAX15062CATA+T start up into a prebiased output?
Yes, the MAX15062CATA+T supports monotonic startup into a prebiased output in both PFM and forced-PWM modes. Its internal architecture prevents reverse current flow and output discharge during soft-start, making it suitable for multi-rail systems (e.g., FPGA or MCU with auxiliary supplies already active) without external diodes or sequencing controllers.
What protection features are integrated into the MAX15062CATA+T?
The MAX15062CATA+T integrates cycle-by-cycle peak current limiting (0.56A typical), runaway current protection (0.66A), hiccup-mode fault recovery, thermal shutdown at 166°C (10°C hysteresis), and output undervoltage monitoring via the open-drain RESET pin. These features collectively safeguard against short circuits, overloads, overheating, and brownout conditions in unattended industrial deployments.
Is the MAX15062CATA+T pin-compatible with other MAX15062 variants?
Yes, all MAX15062 variants-including MAX15062A (3.3V fixed), MAX15062B (5V fixed), and MAX15062C (adjustable)-share identical pinout, package (TDFN-8), and electrical characteristics except for internal feedback resistor networks. This allows hardware reuse across output voltage requirements, with only FB/VOUT routing differing for the adjustable version.
MAX15062CATA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- Himalaya
- Package/Case:
- 8-WFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- 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):
- 53.4V
- Current - Output:
- 300mA
- Frequency - Switching:
- 500kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x2)
MAX15062CATA+T FAQ
1.How can I place an order for MAX15062CATA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX15062CATA+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 MAX15062CATA+T reliable?
The price and inventory of MAX15062CATA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX15062CATA+T is usually 5 days.
3.What payment methods are accepted for MAX15062CATA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX15062CATA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX15062CATA+T?
MAX15062CATA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX15062CATA+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 MAX15062CATA+T?
For technical support, including MAX15062CATA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX15062CATA+T requirements.
6.How does Aetrix verify that MAX15062CATA+T is sourced from the original manufacturer or authorized distributors?
All MAX15062CATA+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 MAX15062CATA+T meets industry standards.
7.What is the process for return or replacement of MAX15062CATA+T?
All MAX15062CATA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX15062CATA+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 MAX15062CATA+T part is unused and in its original packaging.
Return procedure for MAX15062CATA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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