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Analog Devices Inc./Maxim Integrated MAXM17625AMB+T
- Part No.:
- MAXM17625AMB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- DC DC Converters
- Package:
- 10-SMD Module
- Datasheet:
-
MAXM17625AMB+T.pdf
- Description:
- 2.7V TO 5.5V, 600MA USLIC POWER
- Quantity:
- Payment:
- Shipping:
Inventory:3,039
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Product details
Overview
MAXM17625AMB+T from Maxim Integrated is a Himalaya uSLIC synchronous step-down DC-DC power module with integrated MOSFETs, compensation network, and 1.5µH inductor. It operates from 2.7V to 5.5V input, delivers up to 600mA output current, supports adjustable 0.8V–1.5V output voltage, and features fixed 2MHz switching frequency - ideal for space-constrained point-of-load regulation in battery-powered industrial sensors.
For engineers reviewing the MAXM17625AMB+T datasheet, MAXM17625AMB+T pinout, MAXM17625AMB+T application, or MAXM17625AMB+T equivalent, key selection criteria include its ±1% feedback accuracy, 1ms soft-start, open-drain PGOOD output, selectable PWM/PFM mode, and -40°C to +125°C ambient operating range.
Technical Context
The MAXM17625AMB+T employs peak-current-mode control with internal slope compensation and a fixed 2MHz oscillator. Its control loop is fully internally compensated, eliminating external compensation components and enabling stable operation with all-ceramic capacitors.
It integrates a high-side pMOSFET and low-side nMOSFET, uses a Kelvin-connected OUTSNS pin for accurate output sensing, and implements cycle-by-cycle overcurrent protection with 1.45A (typ) peak inductor current limit. Thermal shutdown activates at 165°C junction temperature with 10°C hysteresis.
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 LDO pre-regulation. |
| Output Voltage Range | 0.8V to 1.5V - programmable via external resistor divider on FB pin; covers core voltages for microcontrollers and FPGAs. |
| Max Output Current | 600mA - sufficient for powering low-power SoCs, ADCs, and sensor signal chains without thermal derating in typical layouts. |
| Switching Frequency | 2.00MHz (±4%) - enables compact filter design using small 0603/0805 ceramic capacitors and eliminates audible noise. |
| Feedback Accuracy | ±1% - ensures tight output regulation across line, load, and temperature for precision analog and digital loads. |
| Shutdown Current | 0.1μA (typ) - minimizes battery drain in always-on systems during deep sleep or standby modes. |
| Soft-Start Time | 1ms (typ) - prevents inrush current and output overshoot during power-up, protecting downstream circuitry. |
| Operating Temperature | -40°C to +125°C ambient - qualified for industrial and automotive under-hood environments without derating. |
Pinout & Package
MAXM17625AMB+T is housed in a 10-pin, 2.6mm × 2.1mm × 1.35mm uSLIC package - a molded, surface-mount module with integrated inductor and exposed PGND pad for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LX | Switching Node | Internal connection to inductor and MOSFET switches; no external connection required - isolated from PCB routing. |
| OUTSNS | Output Voltage Sense | Kelvin sense input for precise output regulation; must connect directly to COUT positive terminal to reject trace IR drop. |
| FB | Feedback Input | Monitors divided output voltage; sets regulated VOUT via external R1/R2 divider referenced to SGND. |
| PGOOD | Power Good Output | Open-drain signal asserted high when VOUT ≥93.5% of target; used for system power sequencing and fault monitoring. |
| MODE | Operation Mode Select | Ground for forced-PWM (fixed 2MHz); floating for PFM (pulse-skipping at light loads) - latched at power-up only. |
| OUT | Regulated Output | Main power output node; connects to output capacitor (COUT) and load; requires low-ESR ceramic capacitor (e.g., 22μF X7R). |
| EN | Enable Input | Active-high logic control; >2V enables regulation, <0.8V disables with <0.1μA quiescent current. |
| SGND | Signal Ground | Reference for FB, MODE, PGOOD, and EN; must be tied to PGND at single point near IN bypass capacitor. |
| PGND | Power Ground | High-current return path for input/output capacitors and internal MOSFETs; requires large copper pour and multiple vias. |
| IN | Input Supply | Primary power input; requires local 2.2μF ceramic decoupling capacitor placed adjacent to IN and PGND pins. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Inductor | 1.5µH ±20% embedded in package - eliminates external inductor selection, layout sensitivity, and EMI filtering complexity. |
| Internally Compensated | No external compensation components needed - reduces BOM count, layout area, and tuning effort for stable operation. |
| Prebias Startup | Supports soft-start into precharged output without discharging COUT - essential for multi-rail digital systems with staggered power-up. |
| 100% Duty Cycle Operation | Maintains regulation down to VOUT ≈ VIN − 0.13×IOUT - extends usable input range in low-dropout scenarios. |
| Robust Protection Suite | Includes overtemperature shutdown (165°C), cycle-by-cycle overcurrent (1.45A peak), and undervoltage lockout (2.6V typ). |
| All-Ceramic Capacitor Support | Stable with X7R/X5R MLCCs only - eliminates electrolytic/tantalum, improving lifetime, reliability, and temperature stability. |
Applications
| Point-of-Load Power Supply | Standard 5V Rail Supplies |
|---|---|
Use Scenario: Providing clean, regulated 1.2V at 500mA to an ARM Cortex-M7 MCU core rail on a compact industrial controller PCB. IC Role / Device Role / Timing Role: Primary step-down regulator delivering tightly regulated core voltage with fast transient response and minimal board area. Use Value: Reduces total solution size by >40% vs. discrete buck IC + inductor, while maintaining ±1% output accuracy across -40°C to +125°C. | Use Scenario: Generating 3.3V from a 5V system rail for I/O peripherals, UART transceivers, and GPIO interfaces in factory automation equipment. IC Role / Device Role / Timing Role: Secondary buck converter supplying noise-sensitive digital interfaces with low ripple and high PSRR. Use Value: Achieves <15mVpp output ripple using only 22μF ceramic output capacitance, eliminating need for LC filters or ferrite beads. |
| Battery Powered Applications | Industrial Sensors and Process Control |
Use Scenario: Powering a wireless LoRaWAN node with ultra-low quiescent current requirements and intermittent 100ms transmit bursts. IC Role / Device Role / Timing Role: Main power supply enabling both PFM efficiency (<40μA IQ at light load) and PWM stability (2MHz) during active transmission. Use Value: Extends battery life by 3.2× vs. linear regulators while maintaining 1.5V output accuracy during 600mA peak current pulses. | Use Scenario: Supplying 1.8V to a high-resolution 24-bit sigma-delta ADC in a process transmitter operating in hazardous environments. IC Role / Device Role / Timing Role: Precision analog supply with Kelvin-sensed feedback and thermal robustness for metrology-grade signal conditioning. Use Value: Delivers <0.01% load regulation error and maintains operation up to +125°C ambient without output droop or shutdown. |
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+T | Fixed 4MHz switching frequency; supports 1.5V–3.3V output range; uses 1μH inductor. | Targeted at higher-output-voltage rails (e.g., 2.5V/3.3V I/O) where smaller inductance enables faster transient response. | Select MAXM17626AMB+T when output voltage >1.5V is required; not pin-compatible due to different FB voltage divider scaling and frequency. |
| TPS826718SIPR | 2.5V–5.5V input; 0.8V–2.5V output; 1.2MHz switching; 1.2A rating; 2.05mm × 2.45mm × 1.05mm package. | Higher current capability and lower profile, but requires external compensation and lacks PGOOD output. | Choose TPS826718SIPR for higher load current or thinner form factor; verify loop stability with external compensation components. |
Compared with MAXM17625AMB+T, MAXM17626AMB+T offers higher-frequency operation and wider output range but is not interchangeable without redesigning the feedback network and layout. TPS826718SIPR provides greater current headroom and smaller height but sacrifices integrated PGOOD and internal compensation - increasing design validation effort.
Availability
MAXM17625AMB+T 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 support, and RoHS-compliant packaging.
Supply support for MAXM17625AMB+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, mixed-signal, and power management ICs for industrial, automotive, communications, and computing markets.
The MAXM17625AMB+T belongs to the Himalaya uSLIC power module family, engineered to replace discrete buck converters with fully integrated, thermally optimized, and layout-insensitive solutions for space-constrained embedded systems.
FAQ
What is the maximum output current capability of the MAXM17625AMB+T?
The MAXM17625AMB+T delivers 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 thermal vias - and operation within the specified input voltage (2.7V–5.5V) and output voltage (0.8V–1.5V) ranges. Peak inductor current limit is 1.45A (typ), supporting transient loads without foldback.
Does the MAXM17625AMB+T require external compensation components?
No, the MAXM17625AMB+T does not require external compensation components. It features a fully internally compensated control loop optimized for stability with all-ceramic input and output capacitors. This eliminates the need for external RC networks, simplifies layout, reduces BOM count, and ensures consistent performance across manufacturing lots and temperature extremes without tuning.
How is the output voltage set on the MAXM17625AMB+T?
The output voltage of the MAXM17625AMB+T is set using an external resistor divider connected between OUT, FB, and SGND. The FB pin regulates to a precise 0.8V reference, so VOUT = 0.8V × (1 + R1/R2). For example, to set 1.2V output, use R2 = 37.4kΩ and R1 = 19.1kΩ. R2 must be ≤37.4kΩ to maintain bias current accuracy; recommended tolerances are ±1% for both resistors.
What is the function of the OUTSNS pin on the MAXM17625AMB+T?
The OUTSNS pin on the MAXM17625AMB+T provides Kelvin sensing of the output voltage at the load side of the output capacitor. It must be connected directly to the positive terminal of COUT using a dedicated trace to reject voltage drop across PCB traces and ensure accurate regulation. This feature maintains ±1% output accuracy even under high-current, high-ESR conditions and improves load transient response by closing the feedback loop at the true output node.
Can the MAXM17625AMB+T start up into a prebiased output?
Yes, the MAXM17625AMB+T supports startup into a prebiased output without discharging the output capacitor. This feature works in both PWM and PFM modes and is critical for multi-rail systems where other supplies may already be active. During prebias startup, the internal control logic prevents reverse current flow through the low-side MOSFET, avoiding output voltage collapse and ensuring reliable power sequencing in complex embedded platforms.
MAXM17625AMB+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):
- 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):
- 480 mW
- 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+T FAQ
1.How can I place an order for MAXM17625AMB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAXM17625AMB+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 MAXM17625AMB+T reliable?
The price and inventory of MAXM17625AMB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAXM17625AMB+T is usually 5 days.
3.What payment methods are accepted for MAXM17625AMB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAXM17625AMB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAXM17625AMB+T?
MAXM17625AMB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAXM17625AMB+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 MAXM17625AMB+T?
For technical support, including MAXM17625AMB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAXM17625AMB+T requirements.
6.How does Aetrix verify that MAXM17625AMB+T is sourced from the original manufacturer or authorized distributors?
All MAXM17625AMB+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 MAXM17625AMB+T meets industry standards.
7.What is the process for return or replacement of MAXM17625AMB+T?
All MAXM17625AMB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAXM17625AMB+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 MAXM17625AMB+T part is unused and in its original packaging.
Return procedure for MAXM17625AMB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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