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Analog Devices Inc./Maxim Integrated MAXM15064AMB+T
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- Part No.:
- MAXM15064AMB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- DC DC Converters
- Package:
- 10-SMD Module
- Datasheet:
-
MAXM15064AMB+T.pdf
- Description:
- DC DC CONVERTER 0.9-5V
- Quantity:
- Payment:
- Shipping:
Inventory:6,137
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Product details
Overview
MAXM15064AMB+T from Maxim Integrated is an adjustable-output, synchronous step-down DC-DC power module integrating controller, MOSFETs, compensation, and inductor in a single uSLIC™ package. It operates from 4.5V to 60V input, delivers up to 300mA output current, features ±1.5% feedback accuracy, 4.1ms fixed soft-start, and supports 0.9V–5V programmable output voltage. It serves as a compact, plug-and-play replacement for discrete buck regulators in industrial sensor and 4–20mA loop-powered systems.
For engineers reviewing the MAXM15064AMB+T datasheet, MAXM15064AMB+T pinout, MAXM15064AMB+T application, or MAXM15064AMB+T equivalent, this page provides verified technical context, validated pin functions, confirmed thermal and EMI performance (CISPR22 Class B), real-world load transient behavior, and precise alternative selection guidance for point-of-load designs requiring high input voltage range and minimal external components.
Technical Context
The MAXM15064AMB+T employs peak-current-mode control with internal compensation and all-ceramic capacitor support, eliminating need for external loop compensation. Its architecture enables stable operation across 4.5V–60V input while maintaining tight output regulation under varying load and temperature conditions.
It integrates an open-drain RESET output with 95.5% rising/92% falling FB thresholds and 2ms delay, plus programmable EN/UVLO with 1.215V typical enable threshold and true shutdown at 0.75V. The device supports selectable PWM (fixed 500kHz) or PFM mode via MODE pin, delivering >90% efficiency at full load across multiple output voltages including 1.5V, 2.5V, 3.3V, and 5V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 60V - Enables direct connection to unregulated industrial rails, battery stacks, or PoE-derived supplies without pre-regulation. |
| Output Voltage Range | 0.9V to 5V (adjustable via FB resistor divider) - Supports core logic, analog sensors, and mixed-signal ICs requiring precise low-voltage rails. |
| Max Output Current | 300mA - Sufficient for powering microcontrollers, transceivers, and signal-conditioning circuits in space-constrained modules. |
| Feedback Accuracy | ±1.5% - Ensures reliable operation of voltage-sensitive peripherals without post-regulation trimming. |
| Switching Frequency | 465kHz to 535kHz (typ 500kHz) - Balances EMI performance and inductor size; fixed in PWM mode, variable in PFM for light-load efficiency. |
| Soft-Start Time | 4.1ms (fixed) - Prevents input inrush current during power-up, reducing stress on upstream converters and connectors. |
| Operating Temperature | −40°C to +125°C ambient - Validated for deployment in HVAC, industrial enclosures, and outdoor sensor nodes. |
Pinout & Package
Package: 10-pin uSLIC™ (2.6mm × 3mm × 1.5mm, M102A3+2 outline), RoHS-compliant, surface-mount, thermally enhanced with exposed pad (GND-connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 LX | Switching node | Internal inductor switching node; no external connection - minimizes layout complexity and EMI radiation path. |
| 2 GND | Power ground | Main return path for power and control circuits; must be connected to low-impedance PCB ground plane per layout guidelines. |
| 3 RESET | Open-drain power-good | Signals valid output after FB reaches 95.5% of set value; requires external pull-up; used for system sequencing and fault monitoring. |
| 4 MODE | PFM/PWM selection | Ground for forced PWM (constant frequency); floating for automatic PFM at light loads - optimizes efficiency across load range. |
| 5 OUT | Regulated output | Delivers final DC output; requires local ceramic capacitor (≥10µF) to GND for stability and transient response. |
| 6 FB | Feedback input | Connects to resistor divider between OUT and GND to set output voltage (0.9V–5V); internal reference = 0.90V (±1.5%). |
| 7 VCC | LDO output | Internally generated 5V supply (4.75–5.25V) for biasing; bypassed with ≥1µF ceramic capacitor to GND. |
| 8 EN/UVLO | Enable/undervoltage lockout | Active-high enable with programmable turn-on threshold (1.215V typ); falling threshold = 1.09V; true shutdown at 0.75V. |
| 9–10 VIN | Primary input power | Dual pins for low-inductance connection to 4.5–60V input; must be paralleled and decoupled with ≥1µF ceramic capacitor near pins. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated inductor + controller + MOSFETs | Eliminates 12+ external components vs. discrete buck solutions - reduces BOM count, layout area, and qualification effort. |
| Internally compensated | No external compensation network required - simplifies design validation and eliminates tuning iterations. |
| Hiccup overcurrent protection | Auto-recovering fault response prevents thermal runaway during sustained overload or short-circuit events. |
| CISPR22 Class B compliance | Meets conducted and radiated EMI limits without external filtering - accelerates EMC certification for industrial end equipment. |
| Prebias startup capability | Supports powering into precharged output rails - essential for hot-swap and redundant power architectures. |
| Thermal shutdown with hysteresis | Triggers at 166°C junction, resets at 156°C - protects against sustained overtemperature without oscillation. |
Applications
| Industrial Sensors and Encoders | 4–20mA Current-Loop Powered Sensors |
|---|---|
Use Scenario: Powering rotary encoders and analog pressure sensors mounted in factory-floor machinery with wide-input industrial rails (12–48V). IC Role / Device Role / Timing Role: Primary point-of-load regulator converting unregulated bus voltage to stable 3.3V or 5V for sensor signal conditioning and microcontroller core logic. Use Value: Delivers 300mA with <±1.5% output accuracy across −40°C to +125°C ambient, enabling reliable ADC reference and digital interface operation without derating. |
Use Scenario: Supplying loop-powered smart transmitters where available headroom is limited to ~3–12V above 20mA loop compliance. IC Role / Device Role / Timing Role: Efficient step-down converter extracting regulated 1.8V–3.3V from narrow headroom across varying loop current (4–20mA). Use Value: Achieves >85% efficiency at 100mA load with 5V input, extending usable loop voltage range and supporting low-power wireless telemetry modules. |
| LDO Replacement | Battery-Powered Equipment |
Use Scenario: Replacing inefficient linear regulators in legacy instrumentation designs powered from 12–24V batteries or adapters. IC Role / Device Role / Timing Role: High-efficiency buck module replacing 78L05 or similar LDOs to reduce thermal load and extend battery life. Use Value: Reduces power dissipation by >70% at 300mA load (e.g., 24V→3.3V), eliminating heatsinks and enabling sealed enclosure designs. |
Use Scenario: Power management in portable test equipment using Li-ion or multi-cell alkaline packs (6–36V). IC Role / Device Role / Timing Role: Primary DC-DC stage regulating battery voltage to 1.5V, 2.5V, or 3.3V for MCU, display, and RF subsystems. Use Value: PFM mode delivers <20µA quiescent current at light load, preserving battery capacity during sleep states without sacrificing wake-up responsiveness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable-output buck module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAXM15069AMB+ | Same uSLIC™ footprint, 600mA output, 4.5V–60V input, but uses different internal FETs and compensation - not pin-compatible; requires layout change. | Higher current demand (e.g., dual-rail FPGA I/O banks) where 300mA is insufficient. | Select MAXM15069AMB+ only when >300mA continuous output is required and board redesign is acceptable. |
| LMZ31503RNT | TI 3A module in 9mm × 7.5mm QFN; 2.95V–17V input; larger footprint, higher current, different pinout and control interface (no MODE pin, different EN behavior). | Applications needing >300mA with lower input voltage (<17V) and less stringent EMI requirements. | Choose LMZ31503RNT only if higher output current is mandatory and board space allows larger package and revised layout. |
Compared with MAXM15064AMB+, MAXM15069AMB+ offers double the output current but requires PCB revision due to non-pin-compatible pin mapping and thermal pad differences, while LMZ31503RNT trades compactness and ultra-wide input range for higher current and relaxed EMI performance - neither is a drop-in replacement.
Availability
MAXM15064AMB+T is available at Aetrix Electronics and suitable for industrial sensors and encoders, 4–20mA current-loop powered sensors, and battery-powered equipment requiring stable component supply, long-term lifecycle assurance, and guaranteed traceability.
Supply support for MAXM15064AMB+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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for industrial, automotive, and communications applications.
The Himalaya uSLIC™ product line delivers fully integrated, high-efficiency DC-DC power modules targeting space-constrained, high-reliability applications where design simplicity, thermal robustness, and EMI compliance are critical.
FAQ
What is the recommended input capacitor for MAXM15064AMB+T?
The MAXM15064AMB+T requires a minimum 1µF X5R/X7R ceramic capacitor placed as close as possible between VIN and GND pins. For improved ripple suppression and hold-up time, a 4.7µF–10µF capacitor is commonly used in conjunction with the minimum value. Layout must minimize loop inductance - avoid vias in the VIN-GND path.
Can MAXM15064AMB+T operate with a prebiased output?
Yes, MAXM15064AMB+T supports prebias startup: it safely powers into an already charged output rail without causing reverse current or latch-up. This is confirmed in the datasheet's startup waveforms (toc53, toc54, toc59, toc60) and enables use in hot-swap and redundant power systems where the output may be held high by another source.
What is the function of the MODE pin on MAXM15064AMB+T?
The MODE pin on MAXM15064AMB+T selects between two operating modes: connecting MODE to GND forces fixed-frequency PWM operation across all loads, while leaving MODE unconnected enables automatic PFM mode at light loads (<~30mA) to improve light-load efficiency. Internal pullup ensures default PFM behavior when unconnected.
How is output voltage set on MAXM15064AMB+T?
Output voltage on MAXM15064AMB+T is set using an external resistor divider between OUT and GND, connected to the FB pin. With internal reference of 0.90V (±1.5%), the formula is VOUT = 0.90V × (1 + R1/R2). Example: 3.3V requires R1 = 2.2MΩ and R2 = 825kΩ (per datasheet Figure 3). No external compensation is needed.
Does MAXM15064AMB+T include overtemperature protection?
Yes, MAXM15064AMB+T includes thermal shutdown that activates at +166°C junction temperature and releases with 10°C hysteresis (at +156°C). This protection is independent of ambient temperature and is validated across the full −40°C to +125°C operating range, ensuring safe operation under sustained overload or poor airflow conditions.
MAXM15064AMB+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-SMD Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 60V
- Voltage - Output 1:
- 0.9 ~ 5V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 300mA
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- OCP, OTP, SCP, UVLO
- 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:
- -
MAXM15064AMB+T FAQ
1.How can I place an order for MAXM15064AMB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAXM15064AMB+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 MAXM15064AMB+T reliable?
The price and inventory of MAXM15064AMB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAXM15064AMB+T is usually 5 days.
3.What payment methods are accepted for MAXM15064AMB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAXM15064AMB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAXM15064AMB+T?
MAXM15064AMB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAXM15064AMB+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 MAXM15064AMB+T?
For technical support, including MAXM15064AMB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAXM15064AMB+T requirements.
6.How does Aetrix verify that MAXM15064AMB+T is sourced from the original manufacturer or authorized distributors?
All MAXM15064AMB+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 MAXM15064AMB+T meets industry standards.
7.What is the process for return or replacement of MAXM15064AMB+T?
All MAXM15064AMB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAXM15064AMB+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 MAXM15064AMB+T part is unused and in its original packaging.
Return procedure for MAXM15064AMB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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