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Analog Devices Inc./Maxim Integrated MAXM17625AMB+
- Part No.:
- MAXM17625AMB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- DC DC Converters
- Package:
- 10-SMD Module
- Datasheet:
-
MAXM17625AMB+.pdf
- Description:
- 2.7V TO 5.5V
- Quantity:
- Payment:
- Shipping:
Inventory:2,180
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Product details
Overview
MAXM17625AMB+ from Maxim Integrated is a Himalaya uSLIC synchronous step-down DC-DC power module with integrated MOSFETs, compensation network, and 1.5µH inductor, delivering up to 600mA output current from a 2.7V–5.5V input while supporting adjustable 0.8V–1.5V output voltage at fixed 2MHz switching frequency. It operates across –40°C to +125°C ambient, features ±1% feedback accuracy, and integrates open-drain PGOOD for system monitoring in compact point-of-load applications.
For engineers reviewing the MAXM17625AMB+ datasheet, MAXM17625AMB+ pinout, MAXM17625AMB+ application, or MAXM17625AMB+ equivalent, key selection criteria include its 2.6mm × 2.1mm × 1.35mm uSLIC package, internal soft-start (1ms), selectable PWM/PFM mode via MODE pin, 100% duty-cycle capability, and prebias startup support - all critical for battery-powered and space-constrained industrial sensor designs.
Technical Context
The MAXM17625AMB+ employs peak-current-mode control with internal slope compensation and a fixed 2MHz oscillator, enabling stable regulation under transient loads without external compensation. Its control architecture supports both forced-PWM and PFM modes, selected at power-up by the MODE pin state, with cycle-by-cycle overcurrent protection limiting peak inductor current to 1.45A (typ).
It integrates dual ground domains (PGND and SGND) with specified ≤0.3V differential tolerance, uses Kelvin sensing via OUTSNS for accurate output voltage regulation, and includes thermal shutdown at +165°C with 10°C hysteresis - ensuring robust operation in thermally demanding embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports single-cell Li-ion, USB, and standard 3.3V/5V rails without external regulators. |
| Output Voltage Range | 0.8V to 1.5V - programmable via external resistor divider on FB pin; optimized for core logic and low-voltage I/O supplies. |
| Max Output Current | 600mA - sufficient for microcontrollers, sensors, and RF transceivers with margin for transient peaks. |
| Switching Frequency | 2.00MHz (±4%) - enables use of small ceramic capacitors and minimizes EMI in noise-sensitive applications. |
| Feedback Accuracy | ±1% - ensures tight output regulation across temperature and load, critical for precision analog and digital circuits. |
| Shutdown Current | 0.1μA (typ) - extends battery life in always-on IoT edge nodes during deep sleep states. |
| Operating Temperature | –40°C to +125°C ambient - qualified for industrial automation, automotive cabin electronics, and harsh-environment deployments. |
Pinout & Package
MAXM17625AMB+ is housed in a 10-pin, 2.6mm × 2.1mm × 1.35mm uSLIC package with exposed PGND pad for thermal performance. The package is RoHS-compliant, lead(Pb)-free, and designed for reflow soldering per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX | Switching node | Internal connection to high-side pMOSFET drain and inductor; no external connection required. |
| OUTSNS | Output voltage sense | Kelvin connection point to positive terminal of output capacitor - enables accurate regulation independent of PCB trace resistance. |
| FB | Feedback input | Connects to center tap of external resistor divider (R1/R2) to set output voltage; referenced to SGND. |
| PGOOD | Open-drain power good | Asserts high (via external pullup) when VOUT ≥93.5% of target; deasserts low when VOUT ≤90% - used for system sequencing and fault detection. |
| MODE | Operation mode select | Pulled to SGND for forced-PWM (fixed 2MHz); left floating for PFM (pulse-skipping at light loads) - determines efficiency vs. EMI trade-off. |
| OUT | Power output | Main regulated output node; connects directly to load and output capacitor (COUT) to PGND. |
| EN | Enable control | Logic-high (>2V) enables regulation; logic-low (<0.8V) disables converter and reduces quiescent current to 0.1μA. |
| SGND | Signal ground | Reference for FB, MODE, PGOOD, and EN; must be connected to PGND at single point near IN bypass capacitor. |
| PGND | Power ground | High-current return path for IN, OUT, and LX; requires low-impedance copper plane and multiple vias for thermal dissipation. |
| IN | Input supply | Accepts 2.7V–5.5V; requires local 2.2μF ceramic decoupling capacitor placed adjacent to IN and PGND pins. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated inductor & MOSFETs | Eliminates external magnetics and discrete FET layout complexity; reduces BOM count and design validation time. |
| Internally compensated control loop | Removes need for external compensation components - simplifies design and improves stability across operating conditions. |
| Prebias startup capability | Allows safe soft-start into an already charged output rail - essential for multi-rail SoC and FPGA power sequencing. |
| 100% duty-cycle operation | Enables dropout operation down to VIN ≈ VOUT + 0.19V - supports ultra-low headroom scenarios like Li-ion battery discharge. |
| All-ceramic capacitor support | Enables use of compact, reliable X7R/X5R MLCCs for both input and output filtering - no electrolytics required. |
Applications
| Point-of-Load Power Supply | Standard 5V Rail Supplies |
|---|---|
Use Scenario: Providing clean, regulated 1.2V at 500mA to an ARM Cortex-M7 microcontroller core in a factory-floor PLC module. IC Role / Device Role / Timing Role: Primary buck regulator delivering tightly regulated core voltage with fast transient response and minimal board area. Use Value: Reduces solution size by >40% versus discrete buck IC + inductor, while maintaining ±1% output accuracy across –40°C to +85°C. | Use Scenario: Generating 3.3V from a 5V backplane in a modular industrial I/O card with space constraints. IC Role / Device Role / Timing Role: Secondary step-down regulator converting 5V to 3.3V for interface logic and ADC reference, operating in PFM mode during idle periods. Use Value: Achieves >88% efficiency at 10mA load (PFM) and >92% at full 600mA (PWM), extending system uptime in fanless enclosures. |
| Battery Powered Applications | Industrial Sensors and Process Control |
Use Scenario: Powering a wireless LoRaWAN node with 3.3V MCU, SX1276 transceiver, and analog sensor front-end from a single 3.7V Li-ion cell. IC Role / Device Role / Timing Role: Main power management unit providing 1.8V and 3.3V rails with ultra-low shutdown current and prebias startup. Use Value: Enables 10-year battery life in sleep mode (0.1μA shutdown) and eliminates output capacitor discharge during wake-up cycles. | Use Scenario: Supplying 1.2V to a precision 24-bit sigma-delta ADC in a DIN-rail mounted temperature transmitter operating at +70°C ambient. IC Role / Device Role / Timing Role: Low-noise, thermally robust point-of-load regulator with Kelvin sensing to reject PCB IR drop errors. Use Value: Maintains ±1% output accuracy over full –40°C to +125°C range and passes JESD22-B103/B104 shock/vibration tests. |
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 |
|---|---|---|---|
| MAXM17626AMB+ | Fixed 4MHz switching frequency; supports 1.5V–3.3V output range; uses 1μH integrated inductor. | Targeted at higher-output-voltage applications (e.g., 2.5V/3.3V I/O rails) where smaller inductance enables faster transient response. | Select MAXM17626AMB+ when output voltage exceeds 1.5V or when 4MHz operation is required to shrink filter components. |
| TSM10501-2.0 | 2.0V fixed output; 3.0V–5.5V input; 600mA; 2.5MHz switching; 1.2mm height - slightly taller than MAXM17625AMB+ (1.35mm). | Fixed-output variant requiring no feedback resistors; suited for cost-sensitive, high-volume consumer applications with less stringent thermal requirements. | Choose TSM10501-2.0 only if fixed 2.0V output suffices and board height budget allows +0.15mm increase. |
Compared with MAXM17625AMB+, MAXM17626AMB+ offers higher-frequency operation and extended output voltage range but lacks compatibility below 1.5V; TSM10501-2.0 trades programmability and thermal robustness for lower BOM cost and simpler layout - making MAXM17625AMB+ optimal for flexible, precision, and thermally constrained industrial designs.
Availability
MAXM17625AMB+ is available at Aetrix Electronics and suitable for point-of-load power supply, battery-powered IoT nodes, and industrial sensor applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for MAXM17625AMB+ 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 semiconductor solutions for industrial, automotive, communications, and computing markets.
The Himalaya uSLIC product line delivers fully integrated, surface-mount DC-DC modules targeting space-constrained, thermally demanding applications where reliability, ease of use, and rapid time-to-market are critical.
FAQ
What is the maximum output current supported by the MAXM17625AMB+?
The MAXM17625AMB+ supports up to 600mA of continuous output current across its full operating temperature range (–40°C to +125°C ambient). This rating assumes proper PCB thermal design - including adequate PGND copper area and multiple vias - and operation within the specified input voltage (2.7V–5.5V) and output voltage (0.8V–1.5V) ranges. Peak inductor current is internally limited to 1.45A (typ) for overload protection.
Does the MAXM17625AMB+ require external compensation components?
No, the MAXM17625AMB+ does not require external compensation components. It features an internally compensated peak-current-mode control loop, eliminating the need for external capacitors or resistors in the feedback network. This simplifies design, reduces component count, and ensures stable operation across all valid input/output conditions without tuning.
Can the MAXM17625AMB+ start up into a prebiased output voltage?
Yes, the MAXM17625AMB+ supports startup into a prebiased output without discharging the output capacitor - in both PWM and PFM modes. This feature is implemented via controlled gate drive timing and internal current limiting, enabling safe power sequencing in multi-rail systems such as those using FPGAs or application processors with strict voltage ramp requirements.
What is the purpose of the OUTSNS pin on the MAXM17625AMB+?
The OUTSNS pin on the MAXM17625AMB+ provides Kelvin sensing of the output voltage at the load side of the output trace. It connects directly to the positive terminal of the output capacitor (COUT) to eliminate regulation error caused by PCB trace resistance between the module's OUT pin and the load. This ensures ±1% feedback accuracy is maintained regardless of board layout parasitics.
How does the MODE pin affect the operation of the MAXM17625AMB+?
The MODE pin on the MAXM17625AMB+ selects between two operating modes at power-up: grounding MODE enables forced-PWM mode (fixed 2MHz switching), while leaving MODE unconnected enables PFM mode (pulse-skipping at light loads). Mode selection is latched at startup and cannot be changed dynamically during operation - PWM offers predictable EMI and negative inductor current capability, while PFM maximizes light-load efficiency.
MAXM17625AMB+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-SMD Module
- Packaging:
- Strip
- Product Status:
- Active
- Type:
- Non-Isolated PoL Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output 1:
- 0.8 ~ 3.3V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 600mA
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- Adjustable Output
- Operating Temperature:
- -40°C ~ 125°C
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-eMGA (2.6x2.1)
- Control Features:
- Enable, Active Low
- Approval Agency:
- -
- Standard Number:
- -
MAXM17625AMB+ FAQ
1.How can I place an order for MAXM17625AMB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAXM17625AMB+ 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 MAXM17625AMB+ reliable?
The price and inventory of MAXM17625AMB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAXM17625AMB+ is usually 5 days.
3.What payment methods are accepted for MAXM17625AMB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAXM17625AMB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAXM17625AMB+?
MAXM17625AMB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAXM17625AMB+ 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 MAXM17625AMB+?
For technical support, including MAXM17625AMB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAXM17625AMB+ requirements.
6.How does Aetrix verify that MAXM17625AMB+ is sourced from the original manufacturer or authorized distributors?
All MAXM17625AMB+ 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 MAXM17625AMB+ meets industry standards.
7.What is the process for return or replacement of MAXM17625AMB+?
All MAXM17625AMB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAXM17625AMB+, 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 MAXM17625AMB+ part is unused and in its original packaging.
Return procedure for MAXM17625AMB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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