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Analog Devices Inc./Maxim Integrated MAX15062AATA+T
- Part No.:
- MAX15062AATA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WFDFN
- Datasheet:
-
MAX15062AATA+T.pdf
- Description:
- IC REG BUCK 3.3V 300MA 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:10,217
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Product details
Overview
The MAX15062AATA+T from Analog Devices is a 60V-input, 3.3V-output, 300mA synchronous step-down DC-DC converter with integrated high-side pMOS and low-side nMOS FETs, peak-current-mode control, MODE-selectable PWM/PFM operation, and an open-drain RESET output - designed for industrial point-of-load regulation in 4–20mA loops and process control systems.
For engineers reviewing the MAX15062AATA+T datasheet, MAX15062AATA+T pinout, MAX15062AATA+T application, or MAX15062AATA+T equivalent, this page delivers verified technical context, real-world design meaning for each specification, validated pin functions, confirmed alternatives with functional distinctions, and supply-chain support for long-lifecycle industrial deployments.
Technical Context
The MAX15062AATA+T implements a fixed-frequency (465–535kHz) peak-current-mode controller with internal slope compensation and monotonic soft-start. Its MODE pin latches at power-up to select either forced-PWM (constant frequency, negative inductor current allowed) or PFM (pulse-skipping, no reverse current, >92% light-load efficiency).
It integrates a 5V LDO (VCC) with 4.75–5.25V output, 13–50mA current limit, and 4.05–4.3V UVLO; an EN/UVLO input with 1.19–1.24V rising threshold; and a RESET output that asserts low when FB/VOUT falls below 92% of regulation and releases after 2ms delay upon recovery to 95%.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 60V - supports direct connection to unregulated industrial rails including 24V, 36V, and 48V bus systems without pre-regulation. |
| Output Voltage | Fixed 3.3V ±1.5% - tightly regulated for MCU I/O, sensor analog front-ends, and digital logic requiring stable low-noise supply. |
| Max Output Current | 300mA - sufficient for powering multiple low-power sensors, transmitters, or microcontrollers in compact industrial nodes. |
| Peak Efficiency | 92% at full load - minimizes thermal stress and enables operation in sealed enclosures without active cooling. |
| Shutdown Current | 2.2µA (typ) - enables ultra-low-power sleep modes in battery-backed or energy-harvesting systems. |
| Switching Frequency | 500kHz (typ), ±35kHz - balances EMI performance and inductor size; supports use of small 33µH shielded inductors. |
| Operating Temperature | −40°C to +125°C ambient - qualified for deployment in harsh environments including motor control cabinets and outdoor HVAC units. |
Pinout & Package
Package: 8-pin TDFN (2mm × 2mm, 0.5mm pitch), thermally enhanced with exposed pad - enables high-power-density PCB layouts and efficient heat transfer to ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power Input | Primary DC input (4.5–60V); requires local 1µF X7R ceramic bypass to GND for EMI suppression and transient response. |
| EN/UVLO | Enable & Input UVLO Control | Active-high enable with programmable turn-on threshold via external resistor divider; also provides undervoltage lockout protection. |
| VCC | Internal LDO Output | 5V regulated supply for internal circuitry and gate drivers; must be bypassed with ≥1µF ceramic capacitor to GND. |
| FB/VOUT | Feedback Input | Direct connection to 3.3V output for fixed-voltage regulation; internal reference is 0.9V, enabling precise closed-loop control. |
| MODE | Control Mode Selection | Ground for forced-PWM (constant frequency); floating for automatic PFM (high light-load efficiency); latched at startup only. |
| RESET | Open-Drain Fault Monitor | Asserts low when output drops <92% of nominal; releases 2ms after recovery to >95%; requires external pull-up resistor. |
| GND | Power & Signal Ground | Common return for VIN, VCC, FB/VOUT, and LX; must connect to low-impedance ground plane at single-point star node. |
| LX | Switch Node | Connection to inductor switch node; drives internal high-side pMOS and low-side nMOS; high-impedance during shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous MOSFET Integration | Eliminates external Schottky diode and reduces conduction losses - achieves 92% peak efficiency with no external power devices. |
| Internal Compensation | Removes need for external compensation network - simplifies design, reduces BOM count, and ensures stable loop response across all operating conditions. |
| Monotonic Soft-Start | 4.1ms controlled ramp prevents output overshoot and inrush into prebiased loads - critical for multi-rail systems with FPGA or ASIC power sequencing. |
| All-Ceramic Capacitor Support | Enables full use of small, reliable, low-ESR MLCCs for CIN, CVCC, and COUT - eliminates electrolytic capacitors and improves lifetime reliability. |
| Hiccup-Mode Overcurrent Protection | Auto-retry current limiting with 131ms timeout - protects against sustained short-circuits without thermal runaway or latch-off behavior. |
Applications
| Process Control Transmitters | Industrial Sensor Nodes |
|---|---|
Use Scenario: Powering 4–20mA loop-powered temperature, pressure, or flow transmitters in factory automation panels. IC Role / Device Role / Timing Role: Primary DC-DC regulator converting 24V loop supply to clean 3.3V for signal conditioning, ADC, and microcontroller. Use Value: High input voltage range accommodates loop compliance drop; 300mA output supports integrated RF or isolation; RESET monitors output integrity for diagnostics. | Use Scenario: Local regulation for distributed wireless sensor nodes in predictive maintenance systems. IC Role / Device Role / Timing Role: Point-of-load converter delivering 3.3V from wide-range industrial battery or energy-harvesting source. Use Value: 2.2µA shutdown current extends battery life; PFM mode maintains >85% efficiency down to 100µA load; -40°C to +125°C rating ensures field reliability. |
| HVAC Zone Controllers | High-Voltage LDO Replacement |
Use Scenario: Powering microcontroller, display, and communication ICs in building management system (BMS) zone controllers. IC Role / Device Role / Timing Role: Efficient step-down regulator replacing linear regulators fed from 24V or 48V HVAC distribution rails. Use Value: 92% efficiency reduces board heating vs. 40% typical for HV LDOs; TDFN package saves space in crowded control modules. | Use Scenario: Replacing inefficient 60V-input linear regulators in legacy industrial equipment with minimal layout change. IC Role / Device Role / Timing Role: Drop-in synchronous buck replacement delivering same 3.3V output with vastly improved thermal performance. Use Value: Eliminates heatsink requirement; enables retrofit into existing footprints using same input/output capacitors and inductor footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down DC-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5164QDDARQ1 | Automotive-grade AEC-Q100, 65V max input, 3.3V fixed output, 300mA, but uses external MOSFETs and requires compensation components. | Targeted for automotive body electronics; lacks integrated RESET and MODE-selectable PFM/PWM. | Select LM5164QDDARQ1 only if AEC-Q100 qualification is mandatory and external component count is acceptable. |
| TPS54202DRCT | 4.5–28V input, 3.3V fixed output, 2A capability, integrated FETs, but limited to 28V input and no open-drain RESET output. | Designed for lower-voltage consumer/industrial applications; lacks high-voltage tolerance and fault monitoring capability. | Choose TPS54202DRCT only for cost-sensitive, non-HV designs where 2A output current and absence of RESET are acceptable trade-offs. |
Compared with LM5164QDDARQ1 and TPS54202DRCT, the MAX15062AATA+T uniquely combines 60V input tolerance, integrated RESET, MODE-selectable efficiency optimization, and industrial temperature rating - making it optimal for ruggedized 4–20mA and process control systems where reliability and diagnostic capability are critical.
Availability
MAX15062AATA+T is available at Aetrix Electronics and suitable for process control transmitters, industrial sensor nodes, and HVAC zone controllers requiring stable component supply across extended product lifecycles and harsh environmental conditions.
Supply support for MAX15062AATA+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 technologies, serving industrial, automotive, communications, and healthcare markets.
The MAX15062AATA+T belongs to Analog Devices' high-voltage DC-DC converter family, engineered specifically for reliable, compact, and efficient point-of-load regulation in industrial automation, process instrumentation, and building control systems.
FAQ
What is the maximum input voltage rating for the MAX15062AATA+T?
The MAX15062AATA+T has an absolute maximum input voltage rating of 70V, with continuous operation specified from 4.5V to 60V. This 60V operational ceiling allows direct interface with industrial 24V, 36V, and 48V supply rails while maintaining margin for transients and ripple. Exceeding 60V during normal operation risks violating the device's safe operating area and may trigger overvoltage protection or reduce long-term reliability.
Does the MAX15062AATA+T support adjustable output voltages?
No, the MAX15062AATA+T is the fixed 3.3V output variant (MAX15062A). It does not support adjustable outputs - the FB/VOUT pin connects directly to the output for internal 0.9V reference regulation. For adjustable versions, refer to MAX15062C (0.9V to 0.89×VIN), which requires an external resistor divider. Using MAX15062AATA+T in adjustable configurations will result in incorrect regulation and potential instability.
How does the MODE pin affect efficiency in the MAX15062AATA+T?
The MODE pin selects between forced-PWM (MODE = GND) and PFM (MODE floating) operation. In PFM mode, the MAX15062AATA+T skips switching cycles at light loads, disabling negative inductor current and achieving >85% efficiency down to 100µA. In PWM mode, it maintains constant 500kHz frequency but draws higher quiescent current (~2.5mA), reducing light-load efficiency by ~15–20 percentage points compared to PFM.
What is the function of the RESET pin on the MAX15062AATA+T?
RESET is an open-drain output that signals output voltage faults. It pulls low when FB/VOUT falls below 92% of nominal 3.3V (i.e., <3.036V) and returns to high-impedance state 2ms after FB/VOUT rises above 95% (i.e., >3.135V). This provides deterministic power-good monitoring for microcontrollers or supervisory circuits without requiring external comparators or timing components.
Can the MAX15062AATA+T start up into a prebiased output?
Yes, the MAX15062AATA+T supports monotonic startup into a prebiased output in both PFM and forced-PWM modes. Its soft-start circuit ramps the internal error amplifier reference independently of output voltage, preventing reverse current flow through the internal FETs. This avoids discharging the output capacitor and ensures safe power sequencing in multi-rail systems containing FPGAs, DSPs, or other complex ICs.
MAX15062AATA+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:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 60V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- 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)
MAX15062AATA+T FAQ
1.How can I place an order for MAX15062AATA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX15062AATA+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 MAX15062AATA+T reliable?
The price and inventory of MAX15062AATA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX15062AATA+T is usually 5 days.
3.What payment methods are accepted for MAX15062AATA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX15062AATA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX15062AATA+T?
MAX15062AATA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX15062AATA+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 MAX15062AATA+T?
For technical support, including MAX15062AATA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX15062AATA+T requirements.
6.How does Aetrix verify that MAX15062AATA+T is sourced from the original manufacturer or authorized distributors?
All MAX15062AATA+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 MAX15062AATA+T meets industry standards.
7.What is the process for return or replacement of MAX15062AATA+T?
All MAX15062AATA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX15062AATA+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 MAX15062AATA+T part is unused and in its original packaging.
Return procedure for MAX15062AATA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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