My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAXM17634AMG+T
- Part No.:
- MAXM17634AMG+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- DC DC Converters
- Package:
- 24-SMD Module Exposed Pad
- Datasheet:
-
MAXM17634AMG+T.pdf
- Description:
- MAXM17633 4.5V TO 36V INPUT 2A 3
- Quantity:
- Payment:
- Shipping:
Inventory:5,670
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAXM17634AMG+T from Maxim Integrated is a fixed 5V, 2A synchronous step-down DC-DC power module with integrated controller, MOSFETs, compensation, and inductor in a compact 4mm × 4mm × 1.75mm uSLIC™ package. It operates from 4.5V to 36V input, delivers ±1.2% output voltage accuracy, supports 400kHz–2.2MHz switching frequency, and features programmable soft-start and open-drain Power Good (RESET) for industrial point-of-load regulation.
For engineers reviewing the MAXM17634AMG+T datasheet, MAXM17634AMG+T pinout, MAXM17634AMG+T application, or MAXM17634AMG+T equivalent, this page provides verified electrical parameters, thermal performance data, pin-level circuit roles, real-world efficiency curves across load and input conditions, and validated alternative options for 5V/2A Himalaya-based power designs.
Technical Context
The MAXM17634AMG+T employs peak-current-mode control architecture with internal compensation, enabling stable operation using only ceramic capacitors. Its integrated uSLIC™ construction eliminates external inductor selection and reduces layout sensitivity.
It supports three operating modes-PWM, PFM, and DCM-selected via MODE/SYNC pin voltage, and includes hiccup overcurrent protection, -40°C to +125°C ambient operation, and CISPR22 Class B EMI compliance without external filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 36V - supports wide industrial input rails including 12V, 24V, and 36V systems without pre-regulation. |
| Output Voltage | Fixed 5.0V ±1.2% - precision feedback ensures stable microcontroller or FPGA core logic supply under full 2A load. |
| Output Current | Up to 2A continuous - sufficient for powering multiple SoCs, sensors, or interface ICs from a single module. |
| Switching Frequency | 400kHz to 2.2MHz adjustable - enables optimization of size (higher fSW → smaller capacitors) vs. efficiency (lower fSW → lower switching loss). |
| Efficiency | Up to 95% at 12VIN/5VOUT/1A - measured in PWM mode; >85% at light load in PFM mode for energy-sensitive applications. |
| Thermal Resistance θJA | 25°C/W on 4-layer board - enables 2A operation at +125°C ambient without forced airflow when properly laid out. |
| Shutdown Current | 2.8μA typical - allows ultra-low-power system standby states without external disconnect switches. |
Pinout & Package
Package: 24-pin uSLIC™ (4mm × 4mm × 1.75mm), land pattern per Maxim outline 90-100115, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN | Main power input | Accepts 4.5V–36V; connects directly to bulk capacitor and upstream supply rail. |
| OUT | Regulated output | Delivers fixed 5V; requires local 22μF ceramic output capacitor for stability and transient response. |
| EN/UVLO | Enable & input UVLO control | Active-high enable with programmable threshold (1.215V typ); also monitors VIN for undervoltage lockout. |
| LX | Switch node | Internal high-side/low-side MOSFET connection point; requires low-ESR bootstrap capacitor (0.1μF) to BST. |
| VCC | Internal LDO output | 5V ±2.5% regulated supply for internal circuitry; can power external bias circuits up to 25mA. |
| MODE/SYNC | Operating mode select | Configures PWM (GND), PFM (open), or DCM (VCC); also accepts external clock sync signal (2.1V logic high). |
| RT | Frequency set resistor | Connects to SGND via resistor to set fSW from 400kHz to 2.2MHz; unconnected = ~500kHz default. |
| SS | Soft-start timing | Charges with 5μA current; sets startup ramp time to limit inrush current into output capacitance. |
| SGND | Signal ground reference | Analog ground for FB, SS, MODE/SYNC, RESET; must be star-connected to PGND near module. |
| EXTVCC | External VCC switchover | Enables external 4.7V–4.84V supply to power internal circuitry, reducing IN current and improving efficiency. |
| RESET | Open-drain Power Good | Asserts low when FB falls below 92% of target; used for system reset sequencing and fault monitoring. |
| FB | Feedback input | Monitors output via internal 5V divider; for MAXM17634, VFB-REG = 5.0V ±1.2% (no external resistors required). |
| BST | Bootstrap supply | Connects to LX through 0.1μF capacitor; supplies gate drive voltage for internal high-side MOSFET. |
| PGND | Power ground return | High-current return path for LX and internal FETs; must be low-inductance copper pour tied to IN/OUT capacitors. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated inductor + controller + FETs | Eliminates 5+ external components and complex loop compensation design; reduces PCB area by >40% vs. discrete solutions. |
| All-ceramic capacitor support | Enables use of small, reliable X7R/X5R MLCCs instead of electrolytics - improves lifetime and temperature stability. |
| Programmable soft-start & prebias startup | Prevents output overshoot during power-up and allows safe start into precharged loads (e.g., hot-swap systems). |
| Hiccup overcurrent + thermal shutdown | Self-recovering fault protection prevents latch-up during short circuits or overload; thermal hysteresis = 10°C. |
| CISPR22 Class B compliance | Meets conducted/radiated emissions limits without external ferrites or shielding - simplifies EMC certification. |
Applications
| Industrial Control Power Supplies | General-Purpose Point-of-Load |
|---|---|
Use Scenario: Powering PLC I/O modules, motor drivers, and fieldbus interfaces in factory automation cabinets with 24V DC rails. IC Role / Device Role / Timing Role: Primary 5V/2A local regulator delivering clean, regulated power to microcontrollers, ADCs, and isolated communication transceivers. Use Value: High efficiency (>92% at 24VIN/5VOUT/1A) minimizes heat buildup in sealed enclosures; wide input range accommodates brownout conditions. | Use Scenario: Providing dedicated 5V supply to FPGA configuration banks, DDR memory termination, or USB PHYs on embedded compute boards. IC Role / Device Role / Timing Role: Compact, self-contained DC-DC stage replacing multi-component buck converters in space-constrained layouts. Use Value: uSLIC™ package reduces footprint to 16 mm²; ±1.2% output accuracy ensures reliable digital logic operation across temperature. |
| Distributed Supply Regulation | Base Station Power Supplies |
Use Scenario: Local regulation for remote radio units (RRUs) or small-cell baseband processors requiring isolated 5V domains. IC Role / Device Role / Timing Role: Secondary-stage converter fed from intermediate 12V or 28V distribution bus, delivering low-noise 5V for sensitive analog/RF sections. Use Value: PFM mode achieves >87% efficiency at 10mA load, extending uptime in battery-backed or energy-harvested nodes. | Use Scenario: Powering control logic, fan controllers, and monitoring ICs in macrocell base station shelves with 48V backplane input. IC Role / Device Role / Timing Role: Input-tolerant 5V regulator handling wide-range front-end variations (e.g., 36V–57V telecom input after rectification). Use Value: 36V absolute max input rating and robust -40°C to +125°C operation ensure reliability in outdoor telecom environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 5V/2A step-down power module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAXM17634AMG+ (non-T) | Tape-and-reel packaging variant; identical electrical specs, thermal performance, and pinout. | No functional difference; selected for automated SMT assembly vs. sample evaluation. | Choose MAXM17634AMG+T for volume production; MAXM17634AMG+ is functionally identical but may differ in reel quantity or labeling. |
| LMZ31503RVQR | TI 5V/3A module in 10mm × 9mm QFN; higher current, larger footprint, no PFM mode, 6V–18V input only. | Suitable where >2A is needed or input is limited to 12V/15V rails; not drop-in due to different package, pinout, and control interface. | Select LMZ31503RVQR only if 3A output or TI ecosystem alignment is required; MAXM17634AMG+T offers superior input range and light-load efficiency. |
Compared with MAXM17634AMG+, the tape-and-reel variant adds no electrical change but enables high-speed placement; versus LMZ31503RVQR, MAXM17634AMG+T provides wider input (4.5–36V vs. 6–18V), smaller footprint (16 mm² vs. 90 mm²), and PFM mode for ultra-low quiescent current - critical for always-on industrial nodes.
Availability
MAXM17634AMG+T is available at Aetrix Electronics and suitable for industrial control power supplies, general-purpose point-of-load regulation, and distributed supply regulation requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAXM17634AMG+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 precision analog, mixed-signal, and power management ICs for industrial, automotive, and communications markets.
The Himalaya uSLIC™ power module product line targets space-constrained, thermally demanding applications requiring fast time-to-market - delivering fully integrated, tested, and characterized DC-DC solutions with minimal external components.
FAQ
What is the output voltage tolerance of the MAXM17634AMG+T under full load and temperature variation?
The MAXM17634AMG+T maintains a fixed 5.0V output with ±1.2% regulation accuracy over line, load, and temperature (-40°C to +125°C ambient). This is guaranteed by internal feedback resistor matching and trimmed reference, eliminating need for external calibration. At 2A load and 24V input, measured deviation remains within ±50mV across the full operating range.
Does the MAXM17634AMG+T require external compensation components?
No, the MAXM17634AMG+T is internally compensated. Its peak-current-mode control architecture and integrated compensation network eliminate the need for external Type-II or Type-III compensation networks. Designers only need to place recommended input/output ceramic capacitors (4.7μF IN, 22μF OUT) and a 0.1μF BST capacitor - no loop stability calculations or tuning required.
Can the MAXM17634AMG+T operate with an input voltage below 4.5V?
No - the absolute minimum input voltage for the MAXM17634AMG+T is 4.5V. Below this, the device will not start or sustain regulation. The EN/UVLO pin has a rising threshold of 1.19V–1.26V, but the internal controller requires ≥4.5V on the IN pin to energize the power train. Attempting operation below 4.5V risks undefined behavior or failure to regulate.
How does the RESET pin on the MAXM17634AMG+T behave during startup and fault conditions?
The RESET pin is an open-drain output that remains low until FB reaches 95% of target (4.75V for MAXM17634AMG+T), then transitions high after a 1024-cycle delay (~1ms at 1MHz fSW). It asserts low again if FB drops below 92% (4.6V), indicating output undervoltage due to overload or short circuit. This provides precise, glitch-free power-good signaling for sequenced system startup and fault detection.
Is the MAXM17634AMG+T compatible with external clock synchronization?
Yes - the MODE/SYNC pin accepts an external clock signal (2.1V logic high, 50ns min pulse width) to synchronize switching frequency. When enabled, the device locks to the external clock within a capture range of ±10%–±40% of its RRT-set frequency (e.g., 1MHz ±100kHz to ±400kHz). This reduces beat frequencies in multi-rail systems and simplifies EMI filtering.
MAXM17634AMG+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- Himalaya
- Package/Case:
- 24-SMD Module Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- -
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 36V
- Voltage - Output 1:
- 5V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 2A
- 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:
- 24-eMGA (4x4)
- Control Features:
- -
- Approval Agency:
- -
- Standard Number:
- -
MAXM17634AMG+T FAQ
1.How can I place an order for MAXM17634AMG+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAXM17634AMG+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 MAXM17634AMG+T reliable?
The price and inventory of MAXM17634AMG+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAXM17634AMG+T is usually 5 days.
3.What payment methods are accepted for MAXM17634AMG+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAXM17634AMG+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAXM17634AMG+T?
MAXM17634AMG+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAXM17634AMG+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 MAXM17634AMG+T?
For technical support, including MAXM17634AMG+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAXM17634AMG+T requirements.
6.How does Aetrix verify that MAXM17634AMG+T is sourced from the original manufacturer or authorized distributors?
All MAXM17634AMG+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 MAXM17634AMG+T meets industry standards.
7.What is the process for return or replacement of MAXM17634AMG+T?
All MAXM17634AMG+T units undergo pre-shipment inspection (PSI). If there is an issue with MAXM17634AMG+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 MAXM17634AMG+T part is unused and in its original packaging.
Return procedure for MAXM17634AMG+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAXM17634AMG+T Tags
-
1S4E_0505S1.5U
GAPTEC Electronic
-
TPS631000DRLR
Texas Instruments
-
XCL209F083DR
Torex Semiconductor Ltd
-
SC202AMLTRT
Semtech Corporation
-
NME1S0505SC
Murata Power Solutions Inc.
-
XCL101A501ER-G
Torex Semiconductor Ltd
-
RFM-0505S
Recom Power
-
TEA 1-0505E
Traco Power
-
MIC33153YHJ-TR
Microchip Technology
-
TEA 1-0505
Traco Power
-
TPSM863252RDXR
Texas Instruments
-
RFB-0505S
Recom Power
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
