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Analog Devices Inc./Maxim Integrated MAXM17712AMB+
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- Part No.:
- MAXM17712AMB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- DC DC Converters
- Package:
- 10-SMD Module
- Datasheet:
-
MAXM17712AMB+.pdf
- Description:
- 4.5V TO 60V INPUT, 150MA, 3.3V S
- Quantity:
- Payment:
- Shipping:
Inventory:3,892
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Product details
Overview
The MAXM17712AMB+ from Analog Devices is a dual-output Himalaya uSLIC power module integrating a 4V–60V, 150mA synchronous step-down DC-DC converter and a 50mA, high-PSRR linear regulator in a single 10-pin (2.6mm × 3mm × 1.5mm) package. It delivers fixed 3.3V from the buck stage and 1.8V from the LDO, with ±1.3% LDO output accuracy, 5.1ms buck soft-start, and -40°C to +125°C ambient operation - used in industrial sensors and programmable logic controllers requiring compact, robust dual-rail power.
For engineers reviewing the MAXM17712AMB+ datasheet, MAXM17712AMB+ pinout, MAXM17712AMB+ application, or MAXM17712AMB+ equivalent, key selection considerations include its integrated inductor, adjustable switching frequency (350kHz–2.2MHz), open-drain RESET output with 2.1ms delay, PFM/PWM mode selection, and compliance with CISPR22 Class B emissions.
Technical Context
The MAXM17712AMB+ employs peak-current-mode control for the step-down converter and features independent internal compensation for both buck and LDO stages - eliminating external compensation components. Its architecture supports prebias startup, hiccup-mode overcurrent protection (295mA peak limit), and thermal shutdown at 160°C with 20°C hysteresis.
It uses a cascaded topology: the buck output (3.3V) powers the LDO input, enabling low-noise, high-PSRR regulation. The MODE/SYNC pin selects between forced PWM (fixed frequency, negative inductor current allowed) and PFM (pulse-skipping, >92mA peak current threshold), with external clock synchronization capability up to 1.4× fSW.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4V to 60V - supports wide industrial and battery-derived supplies without external pre-regulation. |
| Buck Output Voltage | Fixed 3.3V - eliminates external feedback resistors; ±2% FB accuracy ensures stable rail generation. |
| LDO Output Voltage | Fixed 1.8V - specified for MAXM17712 variant; ±1.33% accuracy at 10mA load enables precision core supply. |
| Max Output Currents | 150mA (buck), 50mA (LDO) - total system load limited to 150mA including LDO draw. |
| Switching Frequency | Adjustable 350kHz–2.2MHz via RT resistor - allows EMI optimization and size/efficiency tradeoffs. |
| Soft-Start Time | 5.1ms (buck), 1.1ms (LDO) - prevents inrush, enables controlled power-up into prebiased rails. |
| Quiescent Current | 70μA (no-load, PFM), 2.5μA (shutdown) - extends battery life in always-on sensor nodes. |
| Operating Temperature | -40°C to +125°C ambient - qualified for harsh industrial environments without derating. |
Pinout & Package
Package: 10-pin uSLIC™ (2.6mm × 3mm × 1.5mm, M102A3+3 outline), RoHS-compliant, with exposed thermal pad for enhanced heat dissipation (θJA = 45°C/W on 4-layer board).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX | Switching node | Internal connection to high-side/low-side MOSFETs; no external components permitted - avoids layout-induced ringing or EMI. |
| GND | Power ground reference | Single-point grounding required; connects to internal power ground plane and all circuit returns for noise immunity. |
| MODE/SYNC | Mode control & sync input | Ground for PWM; floating for PFM; accepts external clock (1.1–1.4× fSW) for synchronized multi-rail systems. |
| RESET | Open-drain power-good output | Pulled high externally; asserts low if FB <92% or OUTL <91.5% of nominal - enables system-level fault detection and sequencing. |
| OUTB | Buck output / LDO input | Delivers 3.3V to load and powers LDO stage; requires ≥10µF ceramic capacitor to GND for stability. |
| OUTL | LDO output | Provides regulated 1.8V; requires ≥2.2µF ceramic capacitor to GND for PSRR and transient response. |
| FB | Buck feedback input | Internally connected to 3.3V output (fixed-voltage variant); no external divider needed - simplifies layout and reduces component count. |
| RT | Frequency programming | Resistor-to-GND sets fSW; unconnected defaults to 610kHz - enables EMI tuning without changing PCB. |
| EN/UVLO | Enable & input UVLO | 1.215V threshold; resistor divider from IN sets turn-on voltage ≥4V - supports brownout protection and controlled enable sequencing. |
| IN | Buck input supply | Accepts 4V–60V; decoupled with 1µF X7R ceramic - handles transients and reduces input ripple propagation. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated inductor & compensation | Eliminates 2–3 external components per rail and removes loop-stability tuning effort - reduces design cycle by ~3 weeks. |
| Selectable PWM/PFM operation | PFM improves light-load efficiency (>85% at 1mA); PWM ensures fixed-frequency EMI profile - selectable per application need. |
| Prebias startup support | Enables safe power-up into existing 3.3V/1.8V rails without discharging output caps - critical for FPGA/CPU multi-rail sequencing. |
| Hiccup overcurrent protection | Auto-retries after 51ms timeout during short-circuit - protects internal FETs and inductor without latch-off or manual reset. |
| CISPR22 Class B compliance | Meets conducted/radiated emissions limits without external filters - reduces EMC debug time and BOM cost. |
| Rugged mechanical qualification | Passes JESD22-B103 (drop), B104 (shock), B111 (vibration) - suitable for transportation and field-deployed industrial equipment. |
Applications
| Industrial Sensors | Programmable Logic Controller |
|---|---|
Use Scenario: Powering MEMS pressure/temperature sensors in factory-floor monitoring nodes with 24V DC bus input. IC Role / Device Role / Timing Role: Dual-rail power source delivering isolated 3.3V analog front-end and 1.8V digital logic supply from single input. Use Value: Integrated LDO provides <50µVRMS noise and >60dB PSRR at 100kHz - preserves sensor ADC SNR without added filtering. | Use Scenario: Supplying I/O modules and microcontroller cores in DIN-rail mounted PLCs operating across 12–48V input range. IC Role / Device Role / Timing Role: Primary DC-DC + LDO power module replacing discrete buck + LDO solutions with higher reliability. Use Value: -40°C to +125°C rating and 160°C thermal shutdown ensure continuous operation in uncooled enclosures near motor drives. |
| Battery-Powered Equipment | HVAC and Building Control |
Use Scenario: Powering wireless sensor transmitters (LoRaWAN/Zigbee) powered by 3.6V LiSOCl₂ or 12V lead-acid batteries. IC Role / Device Role / Timing Role: High-input-range buck-LDO combo enabling direct battery connection without intermediate regulators. Use Value: 2.5µA shutdown current and PFM mode extend 10-year battery life; 60V max input accommodates 12V battery surge events. | Use Scenario: Providing stable 3.3V/1.8V rails for HVAC controller MCUs, display drivers, and communication interfaces (RS-485, CAN). IC Role / Device Role / Timing Role: Compact, drop-in power solution meeting EN55022 Class B for building automation panels. Use Value: uSLIC package footprint (2.6mm × 3mm) saves >60% board area vs. discrete solutions - critical for space-constrained wall-mounted units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAXM17712AUB+ | Same electrical specs but in 10-pin uSLIC package with different land pattern (M102A3+3 vs. M102A3+2); identical pinout and thermal performance. | Compatible with same PCB layout only if land pattern matches; not interchangeable without footprint verification. | Select MAXM17712AUB+ only when sourcing requires alternate packaging code - verify land pattern 90-100027 revision. |
| MAXM17710AMB+ | Identical package and pinout; differs only in LDO output (1.2V vs. 1.8V); same buck output (3.3V), accuracy, and protection features. | Direct substitute where 1.2V LDO rail is acceptable; requires firmware or load validation for lower voltage margin. | Choose MAXM17710AMB+ for cost-sensitive designs needing 1.2V core supply - no layout or timing changes required. |
Compared with MAXM17712AMB+, MAXM17712AUB+ offers identical functionality with minor packaging variation, while MAXM17710AMB+ provides a lower LDO voltage option - both retain full compatibility with the Himalaya ecosystem's layout, thermal, and control interface design rules.
Availability
MAXM17712AMB+ is available at Aetrix Electronics and suitable for industrial sensors, programmable logic controllers, and battery-powered equipment requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MAXM17712AMB+ 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Wilmington, MA.
The MAXM17712AMB+ belongs to the Himalaya uSLIC power module family, designed to replace complex discrete DC-DC + LDO designs with fully integrated, thermally robust, and EMI-compliant solutions for space- and reliability-constrained industrial applications.
FAQ
What is the LDO output voltage of the MAXM17712AMB+?
The MAXM17712AMB+ delivers a fixed 1.8V output from its integrated linear regulator. This value is confirmed in the Ordering Information table and Electrical Characteristics section of the datasheet, where it is explicitly assigned to the MAXM17712 variant within the MAXM17710–MAXM17726 family. The LDO accuracy is ±1.33% at 10mA load, supporting precision low-noise applications such as MCU cores and analog sensors.
Does the MAXM17712AMB+ require external compensation components?
No, the MAXM17712AMB+ does not require external compensation components. Its step-down converter and linear regulator each feature independent internal compensation circuits, as stated in the Detailed Description section. This integration eliminates the need for external capacitors or resistors typically used for loop stability tuning - reducing bill-of-materials count and layout complexity while ensuring consistent performance across temperature and load conditions.
Can the MAXM17712AMB+ operate with a prebiased output voltage?
Yes, the MAXM17712AMB+ supports startup into a prebiased output without discharging the output capacitor, in both PFM and forced-PWM modes. This capability is documented in the "Startup Into a Prebiased Step-Down Converter Output" subsection of the datasheet. It enables reliable power sequencing in multi-rail systems such as FPGAs or SoCs where one rail may already be active before the MAXM17712AMB+ is enabled.
What is the function of the MODE/SYNC pin on the MAXM17712AMB+?
The MODE/SYNC pin on the MAXM17712AMB+ serves two functions: mode selection and external clock synchronization. Grounding the pin enables fixed-frequency PWM operation; leaving it unconnected activates PFM mode for improved light-load efficiency. When an external clock signal (1.1–1.4× fSW) is applied, the internal oscillator synchronizes to it - enabling deterministic timing across multiple MAXM17712AMB+ modules in tightly coordinated power systems.
Is the MAXM17712AMB+ compliant with electromagnetic interference standards?
Yes, the MAXM17712AMB+ complies with CISPR22 (EN55022) Class B conducted and radiated emissions requirements, as verified in the Benefits and Features section. This certification means it meets stringent EMI limits for residential and commercial environments without requiring additional filtering components - simplifying system-level EMC validation and reducing board area and cost.
MAXM17712AMB+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- Himalaya
- Package/Case:
- 10-SMD Module
- Packaging:
- Strip
- Product Status:
- Active
- Type:
- Isolated PoE (Power over Ethernet) Module
- Number of Outputs:
- -
- Voltage - Input (Min):
- 4V
- Voltage - Input (Max):
- 60V
- 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:
- -
MAXM17712AMB+ FAQ
1.How can I place an order for MAXM17712AMB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAXM17712AMB+ 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 MAXM17712AMB+ reliable?
The price and inventory of MAXM17712AMB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAXM17712AMB+ is usually 5 days.
3.What payment methods are accepted for MAXM17712AMB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAXM17712AMB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAXM17712AMB+?
MAXM17712AMB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAXM17712AMB+ 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 MAXM17712AMB+?
For technical support, including MAXM17712AMB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAXM17712AMB+ requirements.
6.How does Aetrix verify that MAXM17712AMB+ is sourced from the original manufacturer or authorized distributors?
All MAXM17712AMB+ 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 MAXM17712AMB+ meets industry standards.
7.What is the process for return or replacement of MAXM17712AMB+?
All MAXM17712AMB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAXM17712AMB+, 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 MAXM17712AMB+ part is unused and in its original packaging.
Return procedure for MAXM17712AMB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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