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Analog Devices Inc./Maxim Integrated MAXM15464AMB+
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- Part No.:
- MAXM15464AMB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- DC DC Converters
- Package:
- 10-SMD Module
- Datasheet:
-
MAXM15464AMB+.pdf
- Description:
- IC REG BUCK 5V 300MA 10EMGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,380
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Product details
Overview
The MAXM15464AMB+ from Maxim Integrated is a fixed 5V, 300mA synchronous step-down DC-DC power module with integrated controller, MOSFETs, compensation, and inductor in a compact uSLIC™ package. It operates from 4.5V to 42V input, delivers ±1.5% feedback accuracy, features open-drain power-good (RESET), and supports PFM/PWM mode selection-ideal for space-constrained industrial sensor and 4–20mA loop-powered applications.
For engineers reviewing the MAXM15464AMB+ datasheet, MAXM15464AMB+ pinout, MAXM15464AMB+ application, or MAXM15464AMB+ equivalent, this page provides verified electrical specs, thermal performance data, pin-level design meaning, real-world efficiency curves, and validated alternatives for drop-in or functionally comparable replacement in ruggedized embedded power rails.
Technical Context
The MAXM15464AMB+ employs peak-current-mode control architecture with fixed 4.1ms soft-start and hiccup-mode overcurrent protection. Its internal LDO supplies VCC at 4.75–5.25V (up to 30mA), while the RESET output asserts low when FB falls below 92% of regulation and releases after 2ms delay upon FB rising above 95.5%.
It integrates all power-stage components-including the inductor-and uses all-ceramic external capacitors. The MODE pin selects between fixed-frequency PWM (MODE = GND) and light-load PFM operation (MODE floating), enabling high efficiency across 5mA–300mA load range with <2.2μA shutdown current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 42V - supports wide industrial input rails including 24V and 36V systems without pre-regulation |
| Output Voltage | Fixed 5.00V ±1.5% - factory-trimmed; no external feedback resistors required |
| Max Output Current | 300mA - sustained delivery under full load at +125°C ambient with proper PCB thermal layout |
| Switching Frequency | 465–535kHz - enables small external filter components and predictable EMI profile |
| Soft-Start Time | 4.1ms (typ) - limits inrush current during power-up; prevents system brownout on cold start |
| Shutdown Current | 2.2μA (typ) - ultra-low quiescent draw enables battery-backed or energy-harvesting standby modes |
| Operating Temp | −40°C to +125°C ambient / −40°C to +150°C junction - qualified for harsh industrial environments |
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 connection to inductor and high-side/low-side MOSFETs; no external component; must be routed with minimal loop area |
| 2 GND | Power ground | Main return path for power and signal; connects to thermal pad; requires low-impedance plane tie |
| 3 RESET | Open-drain power-good | Asserts low if output drops <92% of 5V; pulls high-impedance after 2ms delay when FB >95.5%; requires external pull-up |
| 4 MODE | PFM/PWM mode select | Ground for forced PWM; floating for automatic PFM at light load; internal 500kΩ pull-up |
| 5 OUT | Regulated output | 5V output node; requires ≥10µF ceramic capacitor to GND close to pin for stability and transient response |
| 6 FB | Feedback reference | Connected directly to OUT for fixed 5V operation; not used for resistor divider (unlike MAXM15462) |
| 7 VCC | LDO output | Internal 5V supply for control circuitry; bypass with ≥1µF ceramic capacitor to GND |
| 8 EN/UVLO | Enable/UVLO input | Active-high enable; threshold 1.19–1.28V rising; programmable UVLO via resistor divider from VIN |
| 9–10 VIN | Power input | Dual pins for low-inductance, high-current input path; must be shorted externally and decoupled with ≥1µF ceramic near pins |
Key Features
| Feature | Design Value |
|---|---|
| Integrated inductor & power stage | Eliminates external inductor selection, layout sensitivity, and EMI tuning-reduces BOM count by ≥7 components |
| Internally compensated | No external compensation network required; stable with all-ceramic output capacitors (≥10µF) |
| Prebias startup support | Enables safe turn-on into precharged output rail-critical for hot-swap and redundant power systems |
| CISPR-22 Class B compliance | Meets conducted/radiated emissions limits without external filtering-simplifies EMC certification |
| Hiccup overcurrent protection | Auto-retry current limiting prevents thermal runaway during sustained overload or short-circuit conditions |
Applications
| Industrial Sensors and Encoders | 4–20mA Current-Loop Powered Sensors |
|---|---|
Use Scenario: Powering rotary encoders and analog pressure sensors in factory automation cabinets with 24V DC bus. IC Role / Device Role / Timing Role: Primary 5V local regulator delivering clean, regulated power to sensor signal conditioning and microcontroller peripherals. Use Value: Enables direct 24V-to-5V conversion without intermediate LDOs, reducing heat and board area while maintaining ±1.5% output accuracy over temperature. | Use Scenario: Supplying 5V logic and analog front-end for loop-powered transmitters where available headroom is limited to ~10V. IC Role / Device Role / Timing Role: Efficient step-down converter operating down to 4.5V input-maximizes usable voltage headroom before loop compliance limit. Use Value: Delivers full 300mA at 5V with >85% efficiency at 12V input, extending operational range of 4–20mA devices in low-headroom installations. |
| LDO Replacement | HVAC and Building Control |
Use Scenario: Replacing inefficient linear regulators (e.g., 24V-to-5V LDOs dissipating >1W) in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: High-efficiency switching alternative that eliminates heatsinks and improves thermal margin in sealed enclosures. Use Value: Reduces power dissipation by >75% vs. equivalent LDO at 200mA load, lowering ambient temperature rise and improving long-term reliability. | Use Scenario: Powering communication interfaces (RS-485, CAN) and environmental sensors in HVAC zone controllers powered from 24V AC/DC supplies. IC Role / Device Role / Timing Role: Robust 5V supply with built-in overtemperature and hiccup OCP-survives repeated fault events in field-deployed units. Use Value: Qualified for −40°C to +125°C ambient and passes JESD22 shock/vibration standards, ensuring uptime in unconditioned mechanical rooms. |
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 |
|---|---|---|---|
| MAXM15463AMB+ | Fixed 3.3V output (±1.5%), identical package, pinout, and feature set | Used where 3.3V logic or MCU core supply is required instead of 5V | Select when target system requires 3.3V rather than 5V; no layout change needed |
| RECOM R-78E5.0-0.5 | 5V/500mA output, wider input (6–36V), no MODE or RESET pins, lower efficiency at light load | Lacks power-good signaling and programmable mode; suited for simpler, cost-sensitive designs | Choose when RESET monitoring and PFM efficiency are not required; verify input range compatibility |
Compared with MAXM15463AMB+, the MAXM15464AMB+ provides higher output voltage for legacy 5V peripherals; compared with RECOM R-78E5.0-0.5, it adds critical system-monitoring features (RESET) and adaptive efficiency modes-justifying use in diagnostics-aware industrial nodes.
Availability
MAXM15464AMB+ is available at Aetrix Electronics and suitable for industrial sensors and encoders, 4–20mA current-loop powered sensors, and HVAC and building control systems requiring stable component supply, long lifecycle assurance, and traceable sourcing.
Supply support for MAXM15464AMB+ 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 space-constrained, high-reliability embedded systems needing simplified, robust, and EMC-compliant DC-DC conversion without inductor selection or compensation design.
FAQ
What is the output voltage tolerance of the MAXM15464AMB+ over temperature and line?
The MAXM15464AMB+ delivers a fixed 5.00V output with ±1.5% regulation accuracy over the full −40°C to +125°C ambient temperature range and 4.5V–42V input voltage range. This specification is guaranteed by design and characterization-not just typical-and applies under all load conditions up to 300mA.
Does the MAXM15464AMB+ require external feedback resistors to set the output voltage?
No, the MAXM15464AMB+ does not require external feedback resistors. As a fixed-output variant, its 5V regulation is factory-trimmed and internally set. The FB pin is connected directly to the OUT pin per the datasheet-no resistor divider is used, unlike the adjustable MAXM15462.
How does the RESET pin on the MAXM15464AMB+ behave during startup and fault conditions?
The RESET pin on the MAXM15464AMB+ is an open-drain output that remains high-impedance until FB reaches 95.5% of 5V (~4.775V), then pulls high after a 2ms delay. It asserts low if FB drops below 92% of 5V (~4.6V), providing reliable power-good monitoring for microcontrollers and sequencers.
Can the MAXM15464AMB+ operate with a 5V input, and what is its minimum input voltage?
Yes, the MAXM15464AMB+ can operate with a 5V input. Its absolute minimum input voltage is 4.5V, making it compatible with nominal 5V rails-even with droop or ripple-while maintaining regulation and full 300mA output capability.
Is thermal derating required for the MAXM15464AMB+ at elevated ambient temperatures?
Yes, thermal derating is required. At +125°C ambient, the MAXM15464AMB+ delivers ~220mA continuous output (per Figure toc87). Derating follows a linear curve from 300mA at +25°C to zero at ~+150°C junction temperature-PCB copper area and airflow significantly impact actual performance.
MAXM15464AMB+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- Himalaya
- Package/Case:
- 10-SMD Module
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 42V
- Voltage - Output 1:
- -
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- -
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- -
- Features:
- -
- 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:
- -
MAXM15464AMB+ FAQ
1.How can I place an order for MAXM15464AMB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAXM15464AMB+ 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 MAXM15464AMB+ reliable?
The price and inventory of MAXM15464AMB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAXM15464AMB+ is usually 5 days.
3.What payment methods are accepted for MAXM15464AMB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAXM15464AMB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAXM15464AMB+?
MAXM15464AMB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAXM15464AMB+ 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 MAXM15464AMB+?
For technical support, including MAXM15464AMB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAXM15464AMB+ requirements.
6.How does Aetrix verify that MAXM15464AMB+ is sourced from the original manufacturer or authorized distributors?
All MAXM15464AMB+ 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 MAXM15464AMB+ meets industry standards.
7.What is the process for return or replacement of MAXM15464AMB+?
All MAXM15464AMB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAXM15464AMB+, 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 MAXM15464AMB+ part is unused and in its original packaging.
Return procedure for MAXM15464AMB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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