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Analog Devices Inc./Maxim Integrated MAXM17906AMB+T
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- Part No.:
- MAXM17906AMB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- DC DC Converters
- Package:
- 10-SMD Module
- Datasheet:
-
MAXM17906AMB+T.pdf
- Description:
- DC DC CONVERTER 0.9-6.3V
- Quantity:
- Payment:
- Shipping:
Inventory:6,714
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Product details
Overview
The MAXM17906AMB+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 24V input, delivers up to 300mA output current, features ±1.5% feedback accuracy, 0.9V–6.3V programmable output, and peak-current-mode control - enabling compact, low-noise point-of-load regulation for space-constrained industrial sensors and battery-powered equipment.
For engineers reviewing the MAXM17906AMB+T datasheet, MAXM17906AMB+T pinout, MAXM17906AMB+T application, or MAXM17906AMB+T equivalent, this page provides verified technical context, validated pin functions, real-world application cards, confirmed alternatives with functional distinctions, and supply-chain support details specific to the MAXM17906AMB+T's adjustable 0.9V–6.3V output configuration.
Technical Context
The MAXM17906AMB+T employs peak-current-mode control with fixed 3.75ms soft-start and internal compensation, eliminating external loop components. Its integrated inductor and synchronous rectification enable high efficiency across PWM and PFM modes - delivering >90% efficiency at 12VIN/3.3VOUT/300mA (PWM) and maintaining regulation down to 5mA load in PFM mode.
It supports prebias startup, offers open-drain RESET with 95.5% rising/92% falling FB thresholds, and includes hiccup overcurrent protection, thermal shutdown at 166°C, and CISPR22 Class B EMI compliance. The device operates across –40°C to +125°C ambient temperature with junction ratings up to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 24V - supports wide industrial and battery-derived supplies without external regulators. |
| Output Voltage Range | Adjustable 0.9V to 6.3V via external resistor divider - enables precise rail generation for mixed-signal SoCs and analog subsystems. |
| Max Output Current | 300mA continuous - sufficient for microcontrollers, sensors, and low-power FPGAs without derating at +85°C ambient. |
| Feedback Accuracy | ±1.5% over –40°C to +125°C - ensures stable output under thermal stress without calibration. |
| Switching Frequency | 515kHz to 585kHz - balances EMI performance and inductor size; fixed-frequency PWM or light-load PFM selectable. |
| Shutdown Current | 2.2μA typical - enables ultra-low quiescent power in always-on monitoring circuits. |
| Soft-Start Time | 3.75ms fixed - prevents inrush current into downstream capacitors and avoids brownout during power-up. |
Pinout & Package
Package: 10-pin uSLIC™ (2.6mm × 3mm × 1.5mm), RoHS-compliant, land pattern per Maxim outline 90-100027.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - LX | Switching node | Internal connection to inductor and high-side/low-side MOSFETs; no external connection required - minimizes layout sensitivity and EMI. |
| 2 - GND | Power ground | Primary return path for power and signal currents; requires low-impedance connection to PCB ground plane per layout guidelines. |
| 3 - RESET | Open-drain power-good | Asserts low when FB falls below 92% of set value; pulled high externally to monitor output stability before system initialization. |
| 4 - MODE | Operation mode select | Pull to GND for forced PWM; floating for automatic PFM/PWM transition - optimizes efficiency across load range. |
| 5 - OUT | Regulated output | Delivers final DC output; requires ceramic capacitor (≥10µF) to GND for stability and transient response. |
| 6 - FB | Feedback input | Resistor-divider input setting output voltage; high-impedance (±25nA leakage) enables precision ratio selection. |
| 7 - EN/UVLO | Enable / input UVLO | Active-high enable with 1.215V typical rising threshold; supports programmable input undervoltage lockout. |
| 8 - VCC | Bias supply output | 5V LDO output (4.75–5.25V) powers internal circuitry; can supply auxiliary loads up to 30mA. |
| 9 - VIN | Main input supply | Accepts 4.5V–24V input; internal UVLO protects against unstable input conditions. |
| 10 - NC | No connect | Internally unused; must remain unconnected per datasheet - prevents unintended coupling or leakage paths. |
Key Features
| Feature | Design Value |
|---|---|
| All-ceramic capacitor support | Eliminates electrolytic or tantalum capacitors - improves reliability, lifetime, and temperature stability in harsh environments. |
| Internally compensated | Removes need for external compensation network - reduces BOM count, layout area, and design validation effort. |
| Prebias startup capability | Allows safe turn-on when output is precharged - critical for hot-swap and redundant power systems. |
| Hiccup overcurrent protection | Auto-recovering fault response limits power dissipation during sustained overload - avoids thermal runaway. |
| CISPR22 Class B compliance | Meets conducted/radiated EMI limits without external filtering - simplifies EMC certification for industrial end equipment. |
Applications
| Industrial Sensors and Encoders | 4–20mA Current-Loop Powered Sensors |
|---|---|
|
Use Scenario: Powering MEMS accelerometers and rotary encoders in factory automation PLC modules where board space and thermal headroom are constrained. IC Role / Device Role / Timing Role: Primary point-of-load regulator converting 24V loop supply to 3.3V/1.8V rails for sensor signal conditioning and digital interface ICs. Use Value: Delivers stable 300mA at <1.5% output error across –40°C to +85°C, enabling accurate ADC reference and low-noise analog front-end operation. |
Use Scenario: Supplying isolated sensor nodes powered solely by 4–20mA loop current, requiring ultra-low quiescent current and regulated low-voltage outputs. IC Role / Device Role / Timing Role: Efficient step-down converter deriving 3.3V from minimal loop headroom (e.g., 12V drop across shunt), operating in PFM mode at microamp loads. Use Value: 2.2μA shutdown current and 95% efficiency at 10mA load extend operational uptime in loop-powered field devices without external bias. |
| LDO Replacement | Battery-Powered Equipment |
|
Use Scenario: Replacing inefficient linear regulators in multi-rail embedded systems (e.g., MCU + RF + analog) to reduce heat and extend battery life. IC Role / Device Role / Timing Role: High-efficiency switching alternative to 3.3V/5V LDOs, accepting wide-input 5–24V sources while maintaining tight output regulation. Use Value: >90% efficiency at full load vs. ~50% for LDOs at 12VIN/3.3VOUT, cutting power loss by >50% and enabling smaller thermal solutions. |
Use Scenario: Power management in portable handheld test instruments and wireless sensor transmitters operating from single-cell Li-ion or dual-cell alkaline packs. IC Role / Device Role / Timing Role: Adjustable buck module generating 1.8V core and 3.3V I/O rails from decaying battery voltage (4.5V–24V compatible). Use Value: Maintains regulation down to 4.5V input and supports prebias startup - ensuring clean power during battery insertion or recovery from deep discharge. |
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 |
|---|---|---|---|
| MAXM17904AMB+T | Fixed 3.3V output; identical package, pinout, and feature set except non-adjustable FB network. | Suitable only where 3.3V is required; eliminates external resistors but lacks flexibility for custom voltages. | Select MAXM17904AMB+T when 3.3V is the sole required rail and design simplicity outweighs adjustability needs. |
| MAXM17905AMB+T | Fixed 5V output; same uSLIC™ footprint, thermal performance, and protection features as MAXM17906AMB+T. | Optimized for 5V logic, USB peripherals, or legacy interfaces - not usable for sub-5V analog or core rails. | Choose MAXM17905AMB+T for 5V-only systems needing plug-and-play operation without resistor divider design. |
Compared with MAXM17904AMB+T and MAXM17905AMB+T, the MAXM17906AMB+T provides essential design flexibility through its 0.9V–6.3V adjustability - enabling single-BOM support across multiple voltage variants, reducing inventory complexity, and accommodating future voltage-scaling requirements without hardware revision.
Availability
MAXM17906AMB+T is available at Aetrix Electronics and suitable for industrial sensors and encoders, 4–20mA loop-powered sensors, and battery-powered equipment requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MAXM17906AMB+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 high-performance analog and mixed-signal ICs for industrial, automotive, and communications markets.
The Himalaya uSLIC™ power module product line targets space-constrained, thermally demanding applications - integrating power stages and magnetics to simplify DC-DC design while meeting stringent EMI and reliability requirements.
FAQ
What output voltage range does the MAXM17906AMB+T support?
The MAXM17906AMB+T supports an adjustable output voltage range of 0.9V to 6.3V, set by an external resistor divider on the FB pin. This range is guaranteed across the full operating temperature range (–40°C to +125°C ambient) and load conditions up to 300mA, with ±1.5% feedback accuracy ensuring precise regulation for sensitive analog and digital loads.
Does the MAXM17906AMB+T require external compensation components?
No, the MAXM17906AMB+T is internally compensated - all loop compensation components are integrated within the module. This eliminates the need for external capacitors or resistors in the feedback path, reducing design risk, PCB area, and qualification time while maintaining stability across input voltage, load, and temperature variations.
How does the MODE pin affect efficiency in the MAXM17906AMB+T?
The MODE pin selects between fixed-frequency PWM (MODE = GND) and automatic PFM/PWM (MODE floating). In PFM mode, the MAXM17906AMB+T achieves >85% efficiency at 10mA load and maintains regulation down to 5mA, significantly extending battery life in low-power states compared to forced PWM operation.
What is the purpose of the RESET pin on the MAXM17906AMB+T?
The RESET pin on the MAXM17906AMB+T is an open-drain power-good indicator that asserts low when the FB voltage drops below 92% of its target value and releases high-impedance 1.9ms after FB rises above 95.5%. It enables reliable system sequencing and fault detection without requiring external supervision circuitry.
Can the MAXM17906AMB+T operate with a prebiased output?
Yes, the MAXM17906AMB+T supports prebias startup - it safely turns on even when the OUT pin is held at a nonzero voltage prior to enable. This capability is verified in typical operating waveforms (e.g., toc57, toc58, toc63, toc64) and is essential for hot-swap and redundant power architectures where output voltage may be present before module activation.
MAXM17906AMB+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- Himalaya
- 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):
- 24V
- Voltage - Output 1:
- 0.9 ~ 6.3V
- 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:
- -
MAXM17906AMB+T FAQ
1.How can I place an order for MAXM17906AMB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAXM17906AMB+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 MAXM17906AMB+T reliable?
The price and inventory of MAXM17906AMB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAXM17906AMB+T is usually 5 days.
3.What payment methods are accepted for MAXM17906AMB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAXM17906AMB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAXM17906AMB+T?
MAXM17906AMB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAXM17906AMB+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 MAXM17906AMB+T?
For technical support, including MAXM17906AMB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAXM17906AMB+T requirements.
6.How does Aetrix verify that MAXM17906AMB+T is sourced from the original manufacturer or authorized distributors?
All MAXM17906AMB+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 MAXM17906AMB+T meets industry standards.
7.What is the process for return or replacement of MAXM17906AMB+T?
All MAXM17906AMB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAXM17906AMB+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 MAXM17906AMB+T part is unused and in its original packaging.
Return procedure for MAXM17906AMB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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