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Analog Devices Inc./Maxim Integrated MAX15062CATA+
- Part No.:
- MAX15062CATA+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 8-WFDFN
- Datasheet:
-
MAX15062CATA+.pdf
- Description:
- IC REG BUCK ADJ 300MA 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,418
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Product details
Overview
MAX15062CATA+ from Analog Devices is a 60V-input, 300mA synchronous step-down DC-DC converter with integrated high-side pMOS and low-side nMOS FETs, adjustable 0.9V to 0.89×VIN output, peak-current-mode control, and MODE-selectable PFM/PWM operation. It delivers stable 3.3V/5V-compatible regulation in industrial sensors and 4–20mA loops across –40°C to +125°C ambient.
For engineers reviewing the MAX15062CATA+ datasheet, MAX15062CATA+ pinout, MAX15062CATA+ application, or MAX15062CATA+ equivalent, this page provides verified technical context, validated pin functions, confirmed thermal and efficiency specs at full load and light load, and two rigorously cross-checked alternative parts for adjustable-output buck regulator designs.
Technical Context
The MAX15062CATA+ employs a fixed-frequency (465–535kHz), internally compensated peak-current-mode architecture with monotonic soft-start and hiccup-mode overcurrent protection. Its MODE pin latches at power-up to select between forced-PWM (constant frequency, negative inductor current allowed) or PFM (pulse-skipping, no negative current, >92% peak efficiency at 300mA).
It integrates a 5V LDO (VCC) with 4.75–5.25V output, 13–50mA current limit, and 0.15–0.3V dropout; an EN/UVLO input with 1.19–1.24V rising threshold; and an open-drain RESET output asserting low when FB/VOUT falls below 92% of regulation, with 2ms delay after recovery to 95%.
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 | Adjustable 0.9V to 0.89×VIN - enables flexible rail generation (e.g., 3.3V, 5V, 12V) using external resistor divider on FB/VOUT pin. |
| Peak Efficiency | 92% - achieved at full load (300mA) with ceramic output capacitors, reducing thermal stress and board area. |
| Shutdown Current | 2.2µA (typ) - enables ultra-low-power standby in battery-backed or energy-harvesting systems. |
| Switching Frequency | 465–535kHz - balances EMI performance and inductor size; stable over temperature and input voltage. |
| Operating Temperature | –40°C to +125°C ambient - qualified for harsh industrial environments including process control and HVAC. |
Pinout & Package
Package: 8-pin TDFN (2mm × 2mm, 0.5mm pitch), thermally enhanced with exposed pad. Pin 7 (GND) connects to the exposed thermal pad for optimal heat dissipation and noise immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power Input | Primary input supply connection; requires ≥1µF X7R ceramic bypass capacitor to GND for stability and EMI suppression. |
| EN/UVLO (Pin 2) | Enable / Input UVLO Control | Active-high enable with programmable turn-on threshold (1.19–1.24V rising); enables precise input-voltage sequencing and brownout protection. |
| 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 (0.9V–0.89×VIN); internal reference is 0.887–0.913V for MAX15062C variant. |
| MODE (Pin 5) | Control Mode Selection | Ground for forced-PWM (fixed frequency); floating for PFM (pulse-skipping, higher light-load efficiency). |
| RESET (Pin 6) | Open-Drain Reset Monitor | Asserts low when output drops below 92% of regulation; high-impedance 2ms after recovery to 95% - enables system-level power-good signaling. |
| GND (Pin 7) | Power Ground | Main ground reference and thermal pad connection; must be tied to low-impedance ground plane for EMI and thermal performance. |
| LX (Pin 8) | Switch Node | Connection to inductor switch node; high-impedance during shutdown; drives external 33µH inductor in typical application. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous MOSFET Integration | Integrated 1.35Ω high-side pMOS and 0.45Ω low-side nMOS eliminate external Schottky diode and reduce conduction loss, PCB area, and BOM cost. |
| Internal Compensation & Soft-Start | No external compensation components required; 4.1ms monotonic soft-start prevents output overshoot and enables reliable startup into prebiased outputs. |
| PFM/PWM Mode Flexibility | Configurable via MODE pin: PFM delivers >92% efficiency at light loads (e.g., sensor sleep mode); PWM ensures fixed 500kHz switching for EMI-sensitive applications. |
| Robust Protection Suite | Hiccup-mode current limiting (0.49–0.62A peak), thermal shutdown (166°C), overtemperature hysteresis (10°C), and monotonic prebias startup ensure field reliability. |
| Industrial-Grade Monitoring | Open-drain RESET with 92%/95% thresholds and 2ms delay provides deterministic power-good signaling for MCU reset or fault logging. |
Applications
| Process Control Systems | Industrial Sensor Nodes |
|---|---|
|
Use Scenario: Powering 4–20mA transmitter circuits in PLC I/O modules with 24V loop supply and wide ambient temperature swings. IC Role / Device Role / Timing Role: Primary step-down regulator generating stable 3.3V or 5V rail for op-amps, ADCs, and current-sense amplifiers. Use Value: 60V input tolerance accommodates transients up to 70V; hiccup-mode protection prevents latch-up during short-circuit faults in field wiring. |
Use Scenario: Supplying ultra-low-quiescent current sensor signal chains in wireless condition-monitoring nodes. IC Role / Device Role / Timing Role: Adjustable-output buck converter delivering 1.8V or 2.5V from a 12V or 24V battery or energy harvester. Use Value: 2.2µA shutdown current and PFM mode extend battery life; 0.9V minimum output supports modern low-voltage MEMS sensors. |
| HVAC & Building Automation | High-Voltage LDO Replacement |
|
Use Scenario: Replacing discrete linear regulators in zone controllers requiring 5V for microcontrollers and 3.3V for communication interfaces (RS-485, CAN). IC Role / Device Role / Timing Role: High-efficiency synchronous buck providing dual regulated rails with minimal thermal rise in enclosed enclosures. Use Value: 92% peak efficiency reduces heatsink requirements; –40°C to +125°C rating ensures operation in attic-mounted or outdoor units. |
Use Scenario: Upgrading legacy 60V-input LDO-based supplies in industrial HMIs and motor drives where efficiency and thermal management are critical. IC Role / Device Role / Timing Role: Direct replacement for inefficient linear regulators, converting 48V bus to 5V/3.3V with <1W dissipation at 300mA. Use Value: Eliminates >3W of wasted heat vs. LDO; integrated MOSFETs and all-ceramic design shrink footprint by >50% versus discrete solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable-output synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM5164QDDARQ1 | 4.5–65V input, 300mA, 500kHz fixed frequency, no PFM mode, AEC-Q100 qualified. | Automotive-grade only; lacks light-load PFM efficiency optimization and RESET monitoring. | Select for automotive under-hood applications requiring AEC-Q100; avoid for industrial PFM-critical battery systems. |
| TPS54202DRCT | 4.5–28V input, 2A output, 500kHz, integrated compensation, but lower max input voltage. | Higher current capability but incompatible with 48V/60V industrial buses; no hiccup-mode or RESET output. | Choose when >300mA load current is needed and input stays ≤28V; not suitable for 48V+ systems or safety-monitored designs. |
Compared with LM5164QDDARQ1 and TPS54202DRCT, the MAX15062CATA+ uniquely combines 60V input tolerance, PFM/PWM configurability, open-drain RESET, and –40°C to +125°C operation - making it the only option among the three qualified for unregulated 48V industrial sensor nodes requiring both efficiency and fault monitoring.
Availability
MAX15062CATA+ is available at Aetrix Electronics and suitable for process control systems, industrial sensor nodes, and HVAC controllers requiring stable component supply with long-term industrial lifecycle support.
Supply support for MAX15062CATA+ 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 belongs to Analog Devices' high-voltage power management portfolio, designed specifically for compact, efficient, and robust DC-DC conversion in harsh industrial environments where wide input range and reliability are mandatory.
FAQ
What output voltage range does the MAX15062CATA+ support?
The MAX15062CATA+ supports an adjustable output voltage from 0.9V to 0.89 × VIN. This is achieved using an external resistor divider connected to the FB/VOUT pin, with an internal feedback reference of 0.887–0.913V. For example, with VIN = 24V, the maximum adjustable output is ~21.4V; with VIN = 12V, it is ~10.7V. The MAX15062CATA+ variant is specifically the adjustable version - distinct from the fixed 3.3V (MAX15062A) and 5V (MAX15062B) variants.
How does the MODE pin affect efficiency and EMI in the MAX15062CATA+?
The MODE pin on the MAX15062CATA+ selects between PFM (pin floating) and forced-PWM (pin grounded). In PFM mode, the device skips pulses at light loads, achieving >92% efficiency down to ~1mA, but with variable frequency that may complicate EMI filtering. In forced-PWM mode, switching remains fixed at ~500kHz, simplifying EMI compliance but reducing light-load efficiency by ~10–15 percentage points. Both modes are valid across the full –40°C to +125°C range.
Can the MAX15062CATA+ start up into a prebiased output?
Yes, the MAX15062CATA+ supports monotonic startup into a prebiased output without discharging the output capacitor - in both PFM and forced-PWM modes. This is enabled by its controlled soft-start ramp and current-limit architecture, making it suitable for multi-rail systems (e.g., FPGAs or MCUs with multiple power domains) where sequencing integrity is critical. The soft-start time is 4.1ms (typ), independent of load or output prebias level.
What protection features are built into the MAX15062CATA+?
The MAX15062CATA+ includes hiccup-mode current limiting (0.49–0.62A peak), thermal shutdown at 166°C with 10°C hysteresis, output undervoltage monitoring via the open-drain RESET pin (asserts low at 92% of regulation), and EN/UVLO with programmable turn-on threshold. It also features monotonic startup into prebiased outputs and no reverse-current flow during shutdown - ensuring robustness in industrial fault conditions like shorted loads or hot-plug events.
Is the MAX15062CATA+ pin-compatible with other MAX15062 variants?
Yes, the MAX15062CATA+ shares identical pinout, package (8-pin TDFN), and electrical interface with the MAX15062AATA+ (3.3V fixed) and MAX15062BATA+ (5V fixed). All variants use the same FB/VOUT pin configuration - for fixed-output versions, FB/VOUT connects directly to VOUT; for MAX15062CATA+, it connects to an external resistor divider. No PCB redesign is needed when migrating between variants, provided the feedback network is updated accordingly.
MAX15062CATA+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-WFDFN
- Packaging:
- Strip
- 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 (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x2)
MAX15062CATA+ FAQ
1.How can I place an order for MAX15062CATA+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX15062CATA+ 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+ reliable?
The price and inventory of MAX15062CATA+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX15062CATA+ is usually 5 days.
3.What payment methods are accepted for MAX15062CATA+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX15062CATA+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX15062CATA+?
MAX15062CATA+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX15062CATA+ 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+?
For technical support, including MAX15062CATA+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX15062CATA+ requirements.
6.How does Aetrix verify that MAX15062CATA+ is sourced from the original manufacturer or authorized distributors?
All MAX15062CATA+ 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+ meets industry standards.
7.What is the process for return or replacement of MAX15062CATA+?
All MAX15062CATA+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX15062CATA+, 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+ part is unused and in its original packaging.
Return procedure for MAX15062CATA+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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