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Analog Devices Inc./Maxim Integrated MAXM17624AMB+T
- Part No.:
- MAXM17624AMB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- DC DC Converters
- Package:
- 10-SMD Module
- Datasheet:
-
MAXM17624AMB+T.pdf
- Description:
- IC REG BUCK ADJ 1A 10EMGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,665
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Product details
Overview
MAXM17624AMB+T from Maxim Integrated is a Himalaya-series synchronous step-down DC-DC power module integrating MOSFETs, compensation circuitry, and a 1µH inductor in a compact uSLIC™ package. It operates from 2.9V to 5.5V input, delivers up to 1A output current, regulates adjustable output voltage from 1.5V to 3.3V with ±1% feedback accuracy, and runs at a fixed 4MHz switching frequency-enabling high-density point-of-load regulation in battery-powered and industrial sensor systems.
For engineers reviewing the MAXM17624AMB+T datasheet, MAXM17624AMB+T pinout, MAXM17624AMB+T application, or MAXM17624AMB+T equivalent, key selection criteria include its 4MHz fixed-frequency PWM/switchable PFM operation, integrated inductor and internal compensation, open-drain PGOOD output, prebias startup capability, and thermal shutdown with 165°C trip point.
Technical Context
The MAXM17624AMB+T employs peak-current-mode control with internal slope compensation and a fixed 4MHz oscillator. Its control loop uses an internally compensated error amplifier comparing FB voltage (0.8V reference) against a resistor-divider–set output, enabling stable regulation without external compensation components.
It supports dual operating modes latched at power-up via the MODE pin: forced-PWM for constant-frequency operation across all loads, or PFM for pulse-skipping efficiency at light loads. Startup includes a fixed 1ms soft-start ramp and robust prebias startup-allowing safe enablement into an already charged output rail without discharging the capacitor.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.9V to 5.5V - compatible with standard 3.3V and 5V rails, including Li-ion single-cell and USB-powered systems. |
| Output Voltage Range | 1.5V to 3.3V - set externally via FB resistor divider; optimized for core logic, I/O, and analog supply rails. |
| Max Output Current | 1A continuous - supported across full ambient temperature range (-40°C to +125°C) with appropriate PCB thermal design. |
| Switching Frequency | Fixed 4MHz (typ) - enables use of ultra-small external capacitors and reduces EMI filter size. |
| Feedback Accuracy | ±1% over temperature - ensures tight regulation for noise-sensitive analog and precision digital circuits. |
| Shutdown Current | 0.1µA (typ) - minimizes battery drain in always-on or low-power sleep states. |
| Thermal Shutdown | 165°C rising threshold with 10°C hysteresis - protects against sustained overload or poor heatsinking without latch-off. |
Pinout & Package
MAXM17624AMB+T is housed in a 10-pin, 2.6mm × 2.1mm × 1.3mm low-profile uSLIC™ package (package code MA102A2+1), designed for high-density PCB layouts and automated assembly. The package integrates the inductor and features exposed PGND for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - LX | Switching node | Internal connection to integrated inductor and MOSFETs; no external component required-must remain unconnected per layout guidelines. |
| 2 - OUTSNS | Output voltage sense | Kelvin-sense connection to COUT's positive terminal; improves load regulation accuracy by rejecting PCB trace IR drop. |
| 3 - FB | Feedback input | Connects to center tap of external resistor divider; sets regulated output voltage with 0.8V internal reference. |
| 4 - PGOOD | Open-drain power-good indicator | Asserts high (with external pullup) when VOUT ≥93.5% of target; deasserts low when VOUT ≤90%-enables system sequencing and fault monitoring. |
| 5 - MODE | Operating mode select | Grounded = forced-PWM; floating = PFM-latched at power-up; determines light-load efficiency vs. EMI trade-off. |
| 6 - OUT | Power output | Main regulated output node; connects directly to COUT and load; requires low-ESR ceramic capacitor (10µF typical). |
| 7 - EN | Enable control | Logic-high (>2V) enables regulation; logic-low (<0.8V) disables converter and reduces IN current to 0.1µA. |
| 8 - SGND | Signal ground | Reference for FB, MODE, PGOOD, and OUTSNS; must be tied to PGND at single point near input capacitor. |
| 9 - PGND | Power ground | High-current return path for inductor and MOSFETs; requires solid copper pour and low-inductance connection to IN capacitor. |
| 10 - IN | Input power | 2.9V–5.5V supply input; requires local 2.2µF ceramic decoupling capacitor placed adjacent to IN and PGND pins. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 1µH inductor | Eliminates external inductor selection, layout sensitivity, and EMI shielding-reducing BOM count and design cycle time. |
| Internally compensated control loop | Removes need for external compensation network, simplifying design validation and improving production yield consistency. |
| Selectably fixed-frequency PWM or PFM mode | Enables EMI-critical applications (PWM) or extended battery life (PFM), with seamless transition based on load and MODE pin state. |
| Prebias startup capability | Allows safe enablement into an already charged output rail-critical for multi-rail SoC/FPGA power sequencing without damaging downstream devices. |
| 100% duty-cycle operation | Maintains regulation down to VIN ≈ VOUT, supporting brownout conditions and extending usable input range in battery discharge profiles. |
| Rugged uSLIC™ construction | Passes JESD22-B103 (drop), B104 (shock), and B111 (vibration) - qualified for industrial and portable equipment environments. |
Applications
| Point-of-Load Regulation | Industrial Sensor Power |
|---|---|
|
Use Scenario: Providing clean, tightly regulated 1.8V or 2.5V to a high-precision ADC or MEMS sensor in a factory-floor wireless node. IC Role / Device Role / Timing Role: Primary DC-DC regulator delivering stable, low-noise power directly at the sensor IC's VDD pin. Use Value: ±1% output accuracy and 4MHz switching minimize output ripple and allow smaller bulk capacitance-reducing board area and cost while meeting sensor dynamic range requirements. |
Use Scenario: Powering a 3.3V microcontroller and RS-485 transceiver in a DIN-rail mounted process controller. IC Role / Device Role / Timing Role: Compact, thermally robust power module supplying main system rail under wide ambient temperature swings. Use Value: -40°C to +125°C ambient rating and thermal shutdown with hysteresis ensure reliable operation in unventilated enclosures without derating. |
| Battery-Powered IoT Devices | Distributed 5V Rail Conversion |
|
Use Scenario: Converting 3.7V Li-ion battery output to 1.5V for an ultra-low-power BLE SoC during active transmission bursts. IC Role / Device Role / Timing Role: High-efficiency step-down module operating in PFM mode at standby and PWM during RF activity. Use Value: 0.1µA shutdown current extends shelf life; 4MHz operation enables fast transient response to sudden current demands without large output capacitance. |
Use Scenario: Generating localized 3.3V or 2.5V rails from a centralized 5V backplane in a modular test instrument. IC Role / Device Role / Timing Role: Plug-and-play power module replacing discrete buck solutions at each daughterboard interface. Use Value: uSLIC™ package footprint and integrated magnetics eliminate inductor placement errors and reduce layout iterations-accelerating system integration. |
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 |
|---|---|---|---|
| MAXM17623AMB+T | Same uSLIC™ package and pinout; 2MHz switching; output range 0.8V–1.5V; 1.5µH inductor. | Targeted for sub-1.5V core rails (e.g., ARM Cortex-M cores); lower switching frequency increases inductor size but eases EMI filtering. | Select MAXM17623AMB+T when output voltage ≤1.5V is required and 2MHz operation is acceptable for layout or EMI constraints. |
| TPS826718SIPR | TI µSIP module; 2.5V–5.5V input; 1.8V fixed output; 1A; 2.2MHz; different pinout and package (2.3mm × 2.7mm). | No adjustable output or MODE pin; lacks PGOOD and prebias startup; limited to fixed 1.8V use cases. | Choose TPS826718SIPR only for cost-sensitive, fixed-voltage 1.8V applications where flexibility and robustness features are not required. |
Compared with MAXM17624AMB+T, MAXM17623AMB+T offers lower output voltage range and slower switching, while TPS826718SIPR sacrifices adjustability and protection features for lower unit cost-making MAXM17624AMB+T the optimal choice for flexible, high-reliability 1.5V–3.3V point-of-load designs.
Availability
MAXM17624AMB+T is available at Aetrix Electronics and suitable for point-of-load power supplies, battery-powered IoT nodes, and industrial sensor interfaces requiring stable component supply, long-term manufacturability, and guaranteed thermal performance across harsh environments.
Supply support for MAXM17624AMB+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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The MAXM17624AMB+T belongs to the Himalaya uSLIC™ power module family, engineered to simplify power design by integrating inductors and control circuitry-targeting space-constrained, thermally demanding applications where reliability and time-to-market are critical.
FAQ
What is the maximum output voltage supported by the MAXM17624AMB+T?
The MAXM17624AMB+T supports an adjustable output voltage range from 1.5V to 3.3V, set using an external resistor divider connected to the FB pin. This range is specifically defined for the MAXM17624 variant-unlike the MAXM17623, which covers 0.8V to 1.5V. Operation outside this range is not guaranteed or characterized.
Does the MAXM17624AMB+T require external compensation components?
No, the MAXM17624AMB+T features an internally compensated control loop. Its peak-current-mode architecture includes built-in compensation, eliminating the need for external RC networks on the COMP or FB pins-reducing design complexity and improving production consistency.
Can the MAXM17624AMB+T start up into a prebiased output?
Yes, the MAXM17624AMB+T supports startup into a precharged output rail in both PWM and PFM modes. This prevents reverse current flow and avoids discharging the output capacitor-making it suitable for multi-rail systems where power sequencing must avoid disrupting already-active voltage domains.
What is the function of the OUTSNS pin on the MAXM17624AMB+T?
The OUTSNS pin on the MAXM17624AMB+T provides Kelvin sensing of the output voltage at the load side of the output capacitor. Connecting it directly to the positive terminal of COUT improves load regulation accuracy by compensating for PCB trace resistance between the module and load.
How does the MODE pin affect efficiency and EMI in the MAXM17624AMB+T?
When the MODE pin is grounded, the MAXM17624AMB+T operates in forced-PWM mode-delivering fixed 4MHz switching and predictable EMI spectrum, but with reduced light-load efficiency. When left floating, it enters PFM mode-skipping pulses at light loads to boost efficiency, at the expense of variable switching frequency and broader EMI distribution.
MAXM17624AMB+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:
- -
- Number of Outputs:
- -
- Voltage - Input (Min):
- 2.9V
- Voltage - Input (Max):
- 5.5V
- 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 (2.6x2.1)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MAXM17624AMB+T FAQ
1.How can I place an order for MAXM17624AMB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAXM17624AMB+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 MAXM17624AMB+T reliable?
The price and inventory of MAXM17624AMB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAXM17624AMB+T is usually 5 days.
3.What payment methods are accepted for MAXM17624AMB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAXM17624AMB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAXM17624AMB+T?
MAXM17624AMB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAXM17624AMB+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 MAXM17624AMB+T?
For technical support, including MAXM17624AMB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAXM17624AMB+T requirements.
6.How does Aetrix verify that MAXM17624AMB+T is sourced from the original manufacturer or authorized distributors?
All MAXM17624AMB+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 MAXM17624AMB+T meets industry standards.
7.What is the process for return or replacement of MAXM17624AMB+T?
All MAXM17624AMB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAXM17624AMB+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 MAXM17624AMB+T part is unused and in its original packaging.
Return procedure for MAXM17624AMB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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