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Analog Devices Inc./Maxim Integrated MAXM17630AME+T
- Part No.:
- MAXM17630AME+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- DC DC Converters
- Package:
- 16-SMD Module
- Datasheet:
-
MAXM17630AME+T.pdf
- Description:
- DC DC CONVERTER 3.3V
- Quantity:
- Payment:
- Shipping:
Inventory:2,764
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Product details
Overview
The MAXM17630AME+T from Maxim Integrated is a fixed 3.3V, 1A synchronous step-down DC-DC power module with integrated controller, MOSFETs, compensation, and inductor. It operates from 4.5V to 36V input, delivers ±1.2% output voltage accuracy over –40°C to +125°C, and uses peak-current-mode control with selectable PWM/PFM/DCM modes. It enables compact, low-risk point-of-load regulation in industrial control and high-voltage single-board systems.
For engineers reviewing the MAXM17630AME+T datasheet, MAXM17630AME+T pinout, MAXM17630AME+T application, or MAXM17630AME+T equivalent, this page provides verified technical context, package mapping, real-world operating characteristics, and validated alternative options for design-in and supply continuity planning.
Technical Context
This Himalaya uSLIC module implements peak-current-mode control with internal compensation across its fixed 3.3V output range, eliminating external loop components. Its architecture supports three operating modes-PWM for stable-frequency full-load efficiency, PFM for ultra-low quiescent current (50μA typ) at light loads, and DCM for improved light-load regulation.
The device integrates an auxiliary EXTVCC input to boost gate drive efficiency, a programmable EN/UVLO threshold (1.19V–1.26V rising), and built-in RESET monitoring with 93.8%–97.8% FB threshold hysteresis. Thermal shutdown activates at 165°C with 10°C hysteresis, and hiccup-mode overload protection ensures robust fault recovery.
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 | Fixed 3.3V ±1.2% - guaranteed accuracy over –40°C to +125°C ambient, enabling reliable MCU/SOC core rail delivery. |
| Max Output Current | 1A continuous - sufficient for FPGA I/O banks, microcontrollers, and industrial sensors. |
| Switching Frequency | 400kHz to 2.2MHz adjustable via RT pin - allows EMI optimization and small external capacitor selection. |
| Quiescent Current (PFM) | 50μA typical - extends battery life in always-on industrial monitoring nodes. |
| Shutdown Current | 2.8μA typical - enables deep-sleep system states with minimal leakage. |
| Package Thermal Resistance | θJA = 28°C/W on 4-layer board - supports 1A operation without forced airflow in compact enclosures. |
Pinout & Package
MAXM17630AME+T is housed in a 16-pin, 3mm × 3mm × 1.75mm uSLIC™ package (package code M1633+1), featuring exposed pad (EP) for thermal dissipation and optimized layout for minimal loop inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Main input supply | Accepts 4.5V–36V; must be decoupled near pin with ≥4.7µF ceramic capacitor. |
| PGND | Power ground return | High-current return path for LX switching node; connects directly to EP for thermal and EMI integrity. |
| LX | Switch node | Connects internally to integrated high-side/low-side MOSFETs; requires low-inductance routing to inductor. |
| VOUT | Regulated output | Delivers fixed 3.3V; routed to output capacitor bank (e.g., 22µF X7R) and load. |
| EN/UVLO | Enable and input UVLO input | Active-high logic; rising threshold 1.19–1.26V; enables soft-start and brownout protection. |
| RESET | Power-good indicator | Open-drain output asserting low when VOUT falls below 90.5% of nominal; used for system sequencing. |
| BST | Bootstrap supply | Connects to 0.1µF capacitor between BST and LX to drive high-side MOSFET gate. |
| EXTVCC | Auxiliary gate-drive supply | Accepts 4.56–4.84V input to improve efficiency; bypassed with 2.2µF ceramic capacitor. |
| SS | Soft-start timing | Charged by 5μA internal current; sets startup ramp time with external capacitor (e.g., 5600pF = ~1.1ms). |
| MODE/SYNC | Operating mode select | SGND = PWM, open = PFM, VCC = DCM; also accepts external clock for synchronization. |
| RT | Frequency set | Resistor-to-ground sets fSW from 380kHz to 2.45MHz; open = 400kHz default. |
| SGND | Signal ground reference | Reference for EN/UVLO, SS, MODE/SYNC, RESET, and FB; isolated from PGND to reduce noise coupling. |
| VCC | Internal LDO output | 5V ±2.5% regulated supply for internal circuitry; sourced from VIN or EXTVCC, with 25mA current limit. |
| FB | Feedback input | Internally tied to 3.3V divider; not user-accessible on MAXM17630 - no external resistor network required. |
| EP | Exposed thermal pad | Must be soldered to PCB thermal plane; primary path for heat dissipation (θJA = 28°C/W). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated inductor and MOSFETs | Eliminates discrete magnetics and power stage layout risk; reduces BOM count and footprint by >40% vs. controller+external FET solution. |
| Internally compensated | Removes need for external compensation network - simplifies design validation and eliminates tuning iterations. |
| Selectably optimized light-load efficiency | PFM mode achieves >85% efficiency at 10mA load (VIN=12V, VOUT=3.3V), critical for intermittent-sensing applications. |
| Programmable soft-start and monotonic startup | Prevents output overshoot and inrush into pre-biased rails - essential for hot-swap and multi-rail sequencing. |
| Built-in RESET with hysteresis | Provides clean, glitch-free power-good signal with 3.3% hysteresis (90.5%–97.8%), enabling reliable processor reset assertion. |
| CISPR22 Class B compliance | Meets conducted/radiated emissions limits without external filters - accelerates EMC certification for industrial end equipment. |
Applications
| Industrial Control Power Supplies | General Purpose Point-of-Load |
|---|---|
|
Use Scenario: Powering PLC I/O modules, analog sensor front-ends, and fieldbus transceivers in factory automation cabinets. IC Role / Device Role / Timing Role: Primary 3.3V rail regulator delivering stable, low-noise supply to precision ADCs and isolated UARTs. Use Value: ±1.2% output accuracy and <10mVpp ripple at full load ensure 16-bit ADC performance without additional post-regulation. |
Use Scenario: Local regulation for FPGA configuration banks, microcontroller cores, and memory interfaces on dense PCBs. IC Role / Device Role / Timing Role: Compact, self-contained buck converter replacing discrete IC+inductor solutions in space-constrained designs. Use Value: 3mm × 3mm uSLIC package enables placement directly under BGA devices, minimizing trace inductance and improving transient response. |
| Distributed Supply Regulation | Base Station Power Supplies |
|
Use Scenario: Secondary regulation from 12V/24V backplane to generate 3.3V for RF front-end biasing and digital control logic. IC Role / Device Role / Timing Role: High-efficiency, thermally robust local regulator supporting distributed architecture with minimal thermal derating. Use Value: 28°C/W θJA and -40°C to +125°C operation allow full 1A output in sealed outdoor enclosures without heatsinks. |
Use Scenario: Powering remote radio unit (RRU) control boards requiring reliable 3.3V supply in telecom base stations. IC Role / Device Role / Timing Role: Mission-critical power module meeting extended temperature and long-lifetime reliability requirements. Use Value: Hiccup-mode overload protection and thermal shutdown with hysteresis prevent latch-up during antenna VSWR faults or cooling fan failure. |
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 |
|---|---|---|---|
| MAXM17631AME+T | Fixed 5V output (vs. 3.3V); identical package, pinout, and feature set. | Suitable where system requires 5V logic rails instead of 3.3V - no layout change needed. | Select MAXM17631AME+T only if 5V output is required; otherwise, MAXM17630AME+T is optimal for 3.3V loads. |
| TPSM84203RMLR | 3.3V fixed output, 1A, 4.5–17V input, 2.5mm × 3.5mm QFN; lacks EXTVCC, PFM/DCM modes, and RESET. | Lower input voltage ceiling and no power-good signal limit use in wide-input or safety-critical systems. | Consider TPSM84203RMLR only for cost-sensitive, low-complexity 12V-input applications where RESET and multi-mode efficiency are nonessential. |
Compared with MAXM17631AME+T, the MAXM17630AME+T provides identical integration and reliability but targets 3.3V logic domains; compared with TPSM84203RMLR, it offers wider input range, superior light-load efficiency via PFM/DCM, and integrated RESET - making it suitable for demanding industrial and telecom applications.
Availability
MAXM17630AME+T is available at Aetrix Electronics and suitable for industrial control power supplies, general-purpose point-of-load regulation, and distributed supply systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for MAXM17630AME+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 and mixed-signal ICs for industrial, automotive, communications, and computing markets.
The Himalaya uSLIC product line delivers fully integrated, easy-to-use power modules targeting space-constrained, thermally challenging applications where design simplicity and time-to-market are critical.
FAQ
What is the output voltage tolerance of the MAXM17630AME+T over temperature?
The MAXM17630AME+T guarantees ±1.2% feedback voltage regulation accuracy across the full operating ambient temperature range of –40°C to +125°C. This specification applies to the internal 3.3V reference and ensures stable output under thermal stress without external trimming or calibration.
Does the MAXM17630AME+T require external compensation components?
No, the MAXM17630AME+T is internally compensated for its fixed 3.3V output configuration. The compensation network is fully integrated, eliminating the need for external resistors or capacitors - a key advantage that reduces design complexity and improves reliability.
Can the MAXM17630AME+T be synchronized to an external clock?
Yes, the MAXM17630AME+T supports external clock synchronization via the MODE/SYNC pin. When driven with a TTL-compatible square wave within the capture range (1.1× to 1.4× the RT-set frequency), it locks switching to the external source - useful for noise-sensitive or multi-rail coordinated timing applications.
What is the purpose of the EXTVCC pin on the MAXM17630AME+T?
The EXTVCC pin on the MAXM17630AME+T accepts an auxiliary 4.56–4.84V supply to power the high-side gate driver, improving conversion efficiency - especially at higher input voltages - by reducing gate drive losses and enabling faster MOSFET switching transitions.
How does the RESET function behave during startup and fault conditions on the MAXM17630AME+T?
The MAXM17630AME+T asserts RESET low when the FB voltage falls below 90.5% of nominal (3.00V) and deasserts when FB rises above 93.8% (3.10V). During startup, RESET remains low until output reaches regulation and holds valid for >1024 switching cycles - ensuring clean, jitter-free processor reset signaling.
MAXM17630AME+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:
- 3.3V
- 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:
- -
MAXM17630AME+T FAQ
1.How can I place an order for MAXM17630AME+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAXM17630AME+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 MAXM17630AME+T reliable?
The price and inventory of MAXM17630AME+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAXM17630AME+T is usually 5 days.
3.What payment methods are accepted for MAXM17630AME+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAXM17630AME+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAXM17630AME+T?
MAXM17630AME+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAXM17630AME+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 MAXM17630AME+T?
For technical support, including MAXM17630AME+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAXM17630AME+T requirements.
6.How does Aetrix verify that MAXM17630AME+T is sourced from the original manufacturer or authorized distributors?
All MAXM17630AME+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 MAXM17630AME+T meets industry standards.
7.What is the process for return or replacement of MAXM17630AME+T?
All MAXM17630AME+T units undergo pre-shipment inspection (PSI). If there is an issue with MAXM17630AME+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 MAXM17630AME+T part is unused and in its original packaging.
Return procedure for MAXM17630AME+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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