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Analog Devices Inc./Maxim Integrated MAXM15066AMB+
- Part No.:
- MAXM15066AMB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- DC DC Converters
- Package:
- 10-SMD Module
- Datasheet:
-
MAXM15066AMB+.pdf
- Description:
- DC DC CONVERTER 5V
- Quantity:
- Payment:
- Shipping:
Inventory:3,011
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Product details
Overview
MAXM15066AMB+ from Maxim Integrated is a fixed 5V, 300mA synchronous step-down DC-DC power module with integrated controller, MOSFETs, compensation, and inductor. It operates from 4.5V to 60V input, delivers ±1.5% feedback accuracy, features peak-current-mode control, and includes open-drain RESET output. It is used in industrial sensors, 4–20mA loop-powered devices, and USB Type-C loads.
For engineers reviewing the MAXM15066AMB+ datasheet, MAXM15066AMB+ pinout, MAXM15066AMB+ application, or MAXM15066AMB+ equivalent, key selection criteria include its 5V fixed output, 3.75ms soft-start, hiccup overcurrent protection, -40°C to +125°C ambient operation, and uSLIC™ package compatibility with space-constrained point-of-load designs.
Technical Context
The MAXM15066AMB+ employs peak-current-mode control architecture for stable regulation across wide input voltage (4.5V–60V) and load (0–300mA) ranges. Its internal soft-start time is fixed at 3.75ms to limit inrush current, and it supports prebias startup for systems with existing output voltage.
It integrates an LDO (VCC) regulator delivering 5V ±2.5% at up to 30mA, with UVLO thresholds of 4.05V (rising) and 3.7V (falling). The device uses a 550kHz nominal switching frequency and provides hiccup-mode overcurrent protection with 120ms timeout and thermal shutdown at 166°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 5.00V ±1.5% - ensures stable rail for microcontrollers and analog circuitry without external feedback resistors. |
| Input Voltage Range | 4.5V to 60V - supports wide industrial and automotive supply rails including 12V, 24V, and 48V systems. |
| Max Output Current | 300mA - sufficient for powering low-power MCUs, sensors, and interface ICs in compact embedded systems. |
| Switching Frequency | 550kHz (typ) - enables use of small external ceramic capacitors and minimizes EMI filtering requirements. |
| Soft-Start Time | 3.75ms (fixed) - prevents input voltage droop and inrush stress during power-up in battery- or capacitor-fed systems. |
| Operating Temperature | -40°C to +125°C ambient - qualified for harsh environments such as HVAC controls and industrial encoders. |
| Power-Good Output | Open-drain RESET pin - asserts low when FB falls below 90% of regulation, enabling system sequencing and fault monitoring. |
Pinout & Package
Package: 10-pin uSLIC™ (2.6mm × 3mm × 1.5mm), surface-mount, RoHS-compliant, with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 LX | Switching node | Internal connection to inductor and high-side MOSFET drain; no external component required but must be routed with low-inductance layout. |
| 2 GND | Power ground | Main return path for power and signal; requires low-impedance connection to PCB ground plane for thermal and EMI performance. |
| 3 RESET | Open-drain power-good | Asserts low when output is out-of-regulation; requires external pull-up for logic-level signaling to host controller. |
| 4 OUT | Output voltage | 5V regulated output; connects directly to load and output capacitor (10µF ceramic recommended). |
| 5 FB | Feedback input | Monitors output via internal 5V reference; unused on MAXM15066AMB+ (fixed-output variant), internally tied to regulation node. |
| 6 MODE | Operation mode select | Unconnected = PWM mode; grounded = PFM mode - enables efficiency optimization at light loads. |
| 7 EN/UVLO | Enable & input UVLO | Active-high enable with 1.215V rising threshold; allows system-level power sequencing and brown-out protection. |
| 8 VIN | Main input supply | 4.5V–60V input; requires 1µF ceramic decoupling close to pin for stability and noise suppression. |
| 9 VCC | LDO output | 5V ±2.5% auxiliary supply (up to 30mA); powers internal circuitry and can optionally power external bias circuits. |
| 10 NC | No connect | Not internally bonded; must remain unconnected per datasheet to avoid reliability risk. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated inductor & MOSFETs | Eliminates external magnetics and discrete FETs, reducing BOM count and layout complexity for compact 2.6mm × 3mm footprint. |
| All-ceramic capacitor support | Enables use of low-profile, high-reliability MLCCs for both input and output, avoiding electrolytic or tantalum components. |
| Selectible PWM/PFM mode | Extends light-load efficiency: PFM reduces quiescent current to 95μA (typ), critical for battery-powered sensor nodes. |
| Hiccup overcurrent protection | Auto-retries after fault clearance instead of latching off, maintaining system uptime in transient overload conditions. |
| CISPR-22 Class B compliance | Meets conducted and radiated EMI limits without external filters in typical layouts, accelerating EMC certification. |
Applications
| Industrial Sensors and Encoders | 4–20mA Current-Loop Powered Sensors |
|---|---|
Use Scenario: Powering rotary encoders and temperature transmitters mounted in factory-floor machinery with 24V DC bus. IC Role / Device Role / Timing Role: Primary 5V point-of-load regulator converting noisy 24V industrial rail to clean, regulated supply for encoder ASICs and signal conditioning. Use Value: Delivers 300mA at ±1.5% accuracy across -40°C to +125°C, ensuring consistent encoder resolution and analog-to-digital conversion integrity. | Use Scenario: Supplying loop-powered pressure and flow sensors where power is derived from the 4–20mA loop itself. IC Role / Device Role / Timing Role: Step-down regulator extracting stable 5V from minimal headroom (<5V) available across the loop's sense resistor. Use Value: Operates down to 4.5V input and maintains regulation under dynamic load steps, enabling reliable sensor microcontroller operation within tight loop power budgets. |
| LDO Replacement | USB Type-C Powered Loads |
Use Scenario: Replacing inefficient linear regulators in space-constrained IoT edge nodes to reduce thermal dissipation. IC Role / Device Role / Timing Role: High-efficiency 5V buck module replacing 12V-to-5V LDOs, eliminating heat sinks and improving power density. Use Value: Achieves >85% efficiency at full load (vs. ~42% for LDO), cutting board temperature rise by >25°C and enabling fanless enclosure designs. | Use Scenario: Providing regulated 5V to USB Type-C peripheral devices drawing up to 300mA from variable-source adapters. IC Role / Device Role / Timing Role: Input-stage regulator accepting wide-range USB PD adapter outputs (5–20V) and delivering stable 5V to downstream USB controllers. Use Value: With 60V absolute max input rating and hiccup OCP, survives USB adapter transients and hot-plug surges without latch-off or damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down power module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAXM15065AMB+ | Fixed 3.3V output; identical package, pinout, and electrical specs except FB regulation voltage (3.30V vs. 5.00V). | Used where 3.3V logic rails are required instead of 5V - e.g., ARM Cortex-M0+ microcontrollers or SPI peripherals. | Select MAXM15065AMB+ only when target load requires 3.3V; not a drop-in replacement due to output voltage mismatch. |
| RT6220BGE | 3.3V/5V adjustable via external resistors; 2.5mm × 2.5mm QFN-12; lacks integrated inductor and requires external MOSFETs and compensation. | Suitable for cost-sensitive designs where board area is less constrained and design teams have switching regulator expertise. | Choose RT6220BGE only if external inductor flexibility and lower unit cost outweigh benefits of MAXM15066AMB+'s plug-and-play integration and smaller footprint. |
Compared with MAXM15065AMB+, the MAXM15066AMB+ provides higher output voltage for legacy 5V peripherals, while RT6220BGE trades integration for configurability and lower component cost-making MAXM15066AMB+ optimal for rapid deployment in space-limited industrial modules.
Availability
MAXM15066AMB+ is available at Aetrix Electronics and suitable for industrial sensors and encoders, 4–20mA loop-powered sensors, and USB Type-C powered loads requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for MAXM15066AMB+ 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 industrial, automotive, and communications markets.
The Himalaya uSLIC™ power module product line targets compact, high-reliability DC-DC conversion in space- and thermal-constrained applications such as factory automation, building controls, and portable instrumentation.
FAQ
What is the output voltage tolerance of the MAXM15066AMB+?
The MAXM15066AMB+ provides a fixed 5.00V output with ±1.5% regulation accuracy over line, load, and temperature (-40°C to +125°C ambient). This is achieved via internal feedback reference and trimming, eliminating need for external resistor networks and ensuring consistent performance across operating conditions.
Does the MAXM15066AMB+ require external compensation components?
No, the MAXM15066AMB+ is fully internally compensated. All compensation components-including error amplifier, compensation network, and current-sense circuitry-are integrated within the uSLIC™ module. This eliminates external compensation parts and simplifies design validation for production-grade power supplies.
Can the MAXM15066AMB+ operate with a 3.3V input supply?
No, the MAXM15066AMB+ has a minimum input voltage of 4.5V. Operation below this level is not guaranteed and may result in dropout or regulation failure. For 3.3V-input applications, consider alternative regulators such as the MAX17503 or MAX20004 series, which support lower VIN ranges.
What is the purpose of the MODE pin on the MAXM15066AMB+?
The MODE pin selects between PWM and PFM operation modes. When left unconnected, the MAXM15066AMB+ operates in PWM mode for consistent ripple and fast transient response. When grounded, it switches to PFM mode, reducing quiescent current to 95μA (typ) for improved light-load efficiency in battery-powered systems.
Is the MAXM15066AMB+ compliant with EMI standards?
Yes, the MAXM15066AMB+ complies with CISPR-22 Class B conducted and radiated emissions limits when used with recommended layout and optional 0.1µF + 0.68µF input filter capacitance and 82µH choke. Test data confirms pass/fail margin at 30MHz–1GHz, supporting faster EMC certification cycles.
MAXM15066AMB+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- Himalaya
- Package/Case:
- 10-SMD Module
- Packaging:
- Strip
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 60V
- Voltage - Output 1:
- 5V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 300mA
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- OCP, OTP
- Operating Temperature:
- -40°C ~ 125°C
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-eMGA (3x2.6)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MAXM15066AMB+ FAQ
1.How can I place an order for MAXM15066AMB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAXM15066AMB+ 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 MAXM15066AMB+ reliable?
The price and inventory of MAXM15066AMB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAXM15066AMB+ is usually 5 days.
3.What payment methods are accepted for MAXM15066AMB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAXM15066AMB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAXM15066AMB+?
MAXM15066AMB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAXM15066AMB+ 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 MAXM15066AMB+?
For technical support, including MAXM15066AMB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAXM15066AMB+ requirements.
6.How does Aetrix verify that MAXM15066AMB+ is sourced from the original manufacturer or authorized distributors?
All MAXM15066AMB+ 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 MAXM15066AMB+ meets industry standards.
7.What is the process for return or replacement of MAXM15066AMB+?
All MAXM15066AMB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAXM15066AMB+, 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 MAXM15066AMB+ part is unused and in its original packaging.
Return procedure for MAXM15066AMB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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