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Analog Devices Inc./Maxim Integrated MAXM17632AME+T
- Part No.:
- MAXM17632AME+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- DC DC Converters
- Package:
- 16-SMD Module
- Datasheet:
-
MAXM17632AME+T.pdf
- Description:
- DC DC CONVERTER 0.9-12V
- Quantity:
- Payment:
- Shipping:
Inventory:3,941
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Product details
Overview
MAXM17632AME+T from Maxim Integrated is an adjustable-output, synchronous step-down DC-DC power module delivering up to 1A output current across a 0.9V–12V range, operating from 4.5V–36V input. It integrates controller, MOSFETs, compensation, and inductor in a compact uSLIC™ package and is used for point-of-load regulation in industrial control and high-voltage single-board systems.
For engineers reviewing the MAXM17632AME+T datasheet, MAXM17632AME+T pinout, MAXM17632AME+T application, or MAXM17632AME+T equivalent, key selection considerations include its adjustable output voltage, ±1.2% feedback accuracy over –40°C to +125°C, peak-current-mode control architecture, selectable PWM/PFM/DCM operation modes, and built-in RESET monitoring with monotonic startup support.
Technical Context
The MAXM17632AME+T employs peak-current-mode control with internal compensation, eliminating external loop components across its full 0.9V–12V output range. Its MODE/SYNC pin enables selection among PWM (fixed-frequency), PFM (light-load efficiency), and DCM (discontinuous conduction) operating modes.
It features integrated auxiliary bootstrap supply (EXTVCC) for improved efficiency, programmable EN/UVLO threshold (1.19V–1.26V rising), and built-in output-voltage monitoring with active-low RESET assertion when FB falls below 92% of regulation. Thermal shutdown activates at +165°C with 10°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 36V - supports wide industrial and automotive input rails without pre-regulation. |
| Output Voltage Range | 0.9V to 12V - user-adjustable via external resistor divider; enables direct powering of diverse logic and analog ICs. |
| Max Output Current | 1A - sufficient for FPGA I/O banks, microcontroller cores, and sensor signal chains. |
| Feedback Accuracy | ±1.2% over –40°C to +125°C - ensures stable regulation across extended temperature environments. |
| Switching Frequency | 400kHz to 2.2MHz - adjustable via RT resistor or external clock sync; allows EMI optimization and size trade-offs. |
| Shutdown Current | 2.8μA (typ) - enables ultra-low-power standby in battery-backed or energy-harvesting systems. |
| Package | 16-pin uSLIC™ (3mm × 3mm × 1.75mm) - surface-mount, low-profile module with integrated inductor and thermal pad (EP). |
Pinout & Package
The MAXM17632AME+T is housed in a 16-pin, 3mm × 3mm × 1.75mm uSLIC™ package with exposed thermal pad (EP) on the bottom for enhanced heat dissipation. Pinout is defined per Maxim's land pattern 90-100110.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main input supply | Accepts 4.5V–36V; connects to bulk input capacitor and must be decoupled near the pin. |
| PGND | Power ground | High-current return path for internal MOSFETs and inductor; tied to EP for thermal and electrical performance. |
| LX | Switch node | Drives internal high-side and low-side MOSFETs; requires careful layout to minimize EMI and ringing. |
| VOUT | Regulated output | Delivers up to 1A at user-set voltage; connects directly to output capacitor and load. |
| FB | Feedback input | Senses output voltage via external resistor divider; sets regulation point for adjustable output. |
| EN/UVLO | Enable and input UVLO | Active-high enable with hysteresis; rising threshold 1.215V (typ); disables module below VIN UVLO. |
| RESET | Power-good indicator | Open-drain output asserts low when FB drops below 92% of target; used for system sequencing. |
| SS | Soft-start timing | Controls startup ramp rate via external capacitor; prevents inrush current and output overshoot. |
| MODE/SYNC | Operating mode select | Selects PWM (GND), PFM (open), or DCM (VCC); also accepts external clock for synchronization. |
| RT | Frequency set | Resistor-to-ground sets switching frequency from 400kHz to 2.2MHz; open = 400kHz default. |
| BST | Bootstrap supply | Connects to bootstrap capacitor between BST and LX; powers high-side gate driver. |
| EXTVCC | Auxiliary supply input | Accepts 4.56V–4.84V to power internal LDO; improves efficiency by reducing VIN current draw. |
| VCC | Internal LDO output | 5V ±2.5% regulated supply for internal circuitry; sourced from VIN or EXTVCC. |
| SGND | Signal ground | Analog reference for FB, SS, MODE/SYNC, RESET; kept separate from PGND in sensitive layouts. |
| EP | Exposed thermal pad | Must be soldered to PCB thermal plane; primary path for heat removal and low-inductance PGND connection. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated inductor and compensation | Eliminates external magnetics and loop compensation components, reducing BOM count and design risk. |
| Adjustable output (0.9V–12V) | Single part replaces multiple fixed-output variants; simplifies inventory and supports multi-rail designs. |
| Selectably optimized light-load efficiency | PWM/PFM/DCM mode selection enables >85% efficiency at 10mA load, critical for always-on subsystems. |
| Built-in RESET with voltage monitoring | Provides reliable power-good signaling without external supervisor ICs, enabling safe system boot and reset sequencing. |
| Robust protection suite | Hiccup-mode overload, thermal shutdown (+165°C), and input UVLO ensure reliable operation under fault conditions. |
| CISPR22 Class B compliance | Meets conducted and radiated EMI limits without external filtering-reducing layout complexity and cost. |
Applications
| Industrial Control Power Supplies | Programmable Logic Controller (PLC) |
|---|---|
Use Scenario: Providing isolated, stable 3.3V or 5V rails for PLC I/O modules and communication interfaces in factory automation cabinets. IC Role / Device Role / Timing Role: Primary point-of-load regulator converting 24V DC bus to logic-level voltages for microcontrollers and fieldbus transceivers. Use Value: Delivers ±1.2% regulation accuracy over –40°C to +125°C ambient, ensuring reliable operation in uncontrolled industrial enclosures. | Use Scenario: Powering FPGA-based logic units and real-time Ethernet controllers in modular PLC backplanes. IC Role / Device Role / Timing Role: Adjustable-output DC-DC module supplying configurable core and I/O voltages (e.g., 1.2V, 1.8V, 2.5V, 3.3V) from a shared 24V rail. Use Value: Enables single-part flexibility across multiple voltage domains while maintaining <100mV output ripple at full load. |
| Distributed Supply Regulation | High Voltage Single-Board Systems |
Use Scenario: Local regulation on dense PCBs where centralized PSUs feed intermediate bus voltages (e.g., 12V or 24V) to multiple local regulators. IC Role / Device Role / Timing Role: Compact, self-contained buck module replacing discrete controllers + external FETs + inductors in space-constrained nodes. Use Value: 3mm × 3mm footprint and integrated inductor reduce board area by >50% versus discrete solutions while improving EMI behavior. | Use Scenario: Powering mixed-signal SoCs and ADCs in test equipment or medical imaging boards operating from 36V input rails. IC Role / Device Role / Timing Role: High-input-voltage step-down regulator delivering clean, low-noise 1.2V–5V supplies with fast transient response (<200µs settling). Use Value: Achieves <10mVpp output ripple at 1250kHz switching and supports 1A load steps with <50mV deviation-critical for precision analog performance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar adjustable-output step-down power module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMZ31503RKGT | 3A output, 2.95V–6V input, 3mm × 4.5mm × 1.8mm package; no EXTVCC or PFM mode. | Higher current, narrower input range; suited for lower-voltage, higher-current applications like FPGA core rails. | Choose LMZ31503RKGT when >1A output or tighter input range is required; MAXM17632AME+T preferred for wide-input, low-quiescent, multi-mode efficiency. |
| TPSM84203RMLR | 3A output, 4.5V–17V input, 4mm × 4mm × 1.8mm package; includes PMBus interface and telemetry. | Digitally controllable with telemetry; targets systems requiring dynamic voltage scaling or health monitoring. | Choose TPSM84203RMLR for digital power management; MAXM17632AME+T offers simpler analog control, wider input, and lower shutdown current (2.8μA vs. 10μA). |
Compared with LMZ31503RKGT and TPSM84203RMLR, the MAXM17632AME+T provides the widest input range (4.5V–36V), lowest shutdown current, and most flexible light-load efficiency modes-making it optimal for industrial and high-voltage embedded systems where simplicity, robustness, and wide operating margins are prioritized over digital control or higher current.
Availability
MAXM17632AME+T is available at Aetrix Electronics and suitable for industrial control power supplies, distributed supply regulation, high voltage single-board systems, programmable logic controller (PLC) designs, and base station power supplies requiring stable component supply and long-term manufacturability.
Supply support for MAXM17632AME+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 applications.
The Himalaya uSLIC™ power module product line delivers fully integrated, easy-to-use DC-DC solutions targeting space-constrained, thermally demanding applications where reliability and time-to-market are critical.
FAQ
What is the output voltage adjustment range supported by the MAXM17632AME+T?
The MAXM17632AME+T supports an adjustable output voltage range from 0.9V to 12V, set using an external resistor divider connected to the FB pin. The feedback regulation voltage is 0.9V (typ), with ±1.2% accuracy over –40°C to +125°C. This range accommodates common logic levels (1.2V, 1.8V, 2.5V, 3.3V, 5V) and analog supply requirements, making the MAXM17632AME+T suitable for diverse point-of-load applications without requiring multiple fixed-output variants.
How does the MAXM17632AME+T achieve high efficiency at light loads?
The MAXM17632AME+T achieves high light-load efficiency through selectable operating modes: pulse-frequency modulation (PFM) and discontinuous conduction mode (DCM). When MODE/SYNC is left open, the device enters PFM mode, reducing switching frequency under light loads to minimize switching losses. In DCM mode (MODE/SYNC tied to VCC), it skips pulses entirely during low-current periods. These modes enable efficiencies exceeding 85% at 10mA load-critical for always-on subsystems-and are confirmed in the MAXM17632AME+T datasheet's typical operating characteristics.
Does the MAXM17632AME+T require external compensation components?
No, the MAXM17632AME+T does not require external compensation components. It features built-in compensation across its entire 0.9V–12V output voltage range, enabled by its peak-current-mode control architecture and internal error amplifier. This eliminates the need for external Type II or Type III compensation networks, significantly reducing design complexity and component count. The MAXM17632AME+T is fully functional with only input/output capacitors, feedback resistors, soft-start capacitor, and optional RT resistor-making it a true plug-and-play power solution.
What thermal performance can be expected from the MAXM17632AME+T in a standard four-layer PCB layout?
In a standard four-layer PCB layout with natural convection, the MAXM17632AME+T exhibits a junction-to-ambient thermal resistance (θJA) of 28°C/W. With a maximum junction temperature of +150°C and ambient operating range up to +125°C, this allows ~890mW of power dissipation at full 1A load under worst-case conditions. The exposed thermal pad (EP) must be soldered to an adequate copper pour for effective heat transfer. Derating curves in the MAXM17632AME+T datasheet confirm stable operation at 1A continuous output up to +125°C ambient when properly laid out.
Can the MAXM17632AME+T be synchronized to an external clock source?
Yes, the MAXM17632AME+T supports external clock synchronization via the MODE/SYNC pin. When configured in PWM mode (MODE/SYNC tied to SGND), the device accepts an external clock signal within a capture range of 1.1× to 1.4× the internally set switching frequency (determined by the RT resistor). This feature enables EMI reduction through frequency dithering or alignment with system clocks-particularly valuable in noise-sensitive applications such as high-speed data acquisition or RF subsystems powered by the MAXM17632AME+T.
MAXM17632AME+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- Himalaya
- Package/Case:
- 16-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):
- 36V
- Voltage - Output 1:
- 0.9 ~ 12V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 1A
- Power (Watts):
- -
- Voltage - Isolation:
- -
- Applications:
- ITE (Commercial)
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Efficiency:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-eMGA (3x3)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MAXM17632AME+T FAQ
1.How can I place an order for MAXM17632AME+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAXM17632AME+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 MAXM17632AME+T reliable?
The price and inventory of MAXM17632AME+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAXM17632AME+T is usually 5 days.
3.What payment methods are accepted for MAXM17632AME+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAXM17632AME+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAXM17632AME+T?
MAXM17632AME+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAXM17632AME+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 MAXM17632AME+T?
For technical support, including MAXM17632AME+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAXM17632AME+T requirements.
6.How does Aetrix verify that MAXM17632AME+T is sourced from the original manufacturer or authorized distributors?
All MAXM17632AME+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 MAXM17632AME+T meets industry standards.
7.What is the process for return or replacement of MAXM17632AME+T?
All MAXM17632AME+T units undergo pre-shipment inspection (PSI). If there is an issue with MAXM17632AME+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 MAXM17632AME+T part is unused and in its original packaging.
Return procedure for MAXM17632AME+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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