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Microchip Technology MIC7401YFL-T5
- Part No.:
- MIC7401YFL-T5
- Manufacturer:
- Microchip Technology
- Package:
- 36-VFQFN Exposed Pad
- Datasheet:
-
MIC7401YFL-T5.pdf
- Description:
- IC REG BUCK BST PROG HEX 36FQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,282
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Product details
Overview
MIC7401YFL-T5 from Microchip Technology is a highly integrated, I²C-programmable power-management IC (PMIC) featuring five synchronous buck regulators (up to 3A each), one non-synchronous boost regulator (200 mA), and on-chip EEPROM for runtime configuration. It operates from 2.4V–5.5V input, delivers ±1% output voltage accuracy over line/load/temperature, and supports dual power modes (Standby/Normal) for portable infotainment and FPGA/ASIC core supply applications.
For engineers reviewing the MIC7401YFL-T5 datasheet, MIC7401YFL-T5 pinout, MIC7401YFL-T5 application, or MIC7401YFL-T5 equivalent, this page provides verified technical context, validated pin functions, confirmed efficiency curves, real-world sequencing capabilities, and two rigorously cross-checked alternative PMICs for multi-rail embedded power design.
Technical Context
The MIC7401YFL-T5 integrates five adaptive on-time synchronous buck controllers with internal 40 mΩ high-side and 30 mΩ low-side MOSFETs (at 5V), enabling ultra-fast transient response for CPU/FPGA core rails. Each buck channel supports independent soft-start, current-limit programming (3.075–7.32 A), and pull-down discharge (90 Ω).
Its dedicated boost converter operates at 2.0 MHz with 1.5 µH inductor support, delivers 7–14 V output, includes short-to-ground fault detection, and features an output disconnect switch (90 mΩ). All regulation is managed via a 3.4 MHz I²C interface with on-the-fly EEPROM write capability for voltage scaling, sequencing delay, POR threshold, and power-good masking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.4 V to 5.5 V - Supports single-cell Li-ion, USB, or 3.3 V/5 V system rails without external LDO pre-regulation. |
| Buck Output Accuracy | ±1 % - Guaranteed over full temperature, line, and load range; enables direct powering of 1.05 V/1.25 V/1.8 V FPGA I/O and core domains. |
| Buck Switching Frequency | 1.3 MHz (continuous mode) - Enables use of compact 0.47 µH inductors and 10 µF ceramic output capacitors per rail. |
| Boost Output Range | 7 V to 14 V - Programmable for Flash memory programming supplies in POS terminals and infotainment head units. |
| I²C Interface Speed | Up to 3.4 MHz - Enables rapid dynamic reconfiguration during system boot or thermal throttling events. |
| Quiescent Current | 200 µA (all regulators active) - Meets stringent standby power budgets for always-on embedded systems. |
| Package | 36-pin FQFN, 4.5 mm × 4.5 mm × 0.85 mm, 0.4 mm pitch - Surface-mount compatible with automated assembly; thermal pad (EP) enhances heat dissipation. |
| Junction Temperature | –40°C to +125°C - Qualified for industrial and automotive under-hood infotainment environments. |
Pinout & Package
36-pin FQFN package (4.5 mm × 4.5 mm × 0.85 mm, 0.4 mm pitch) with exposed thermal pad (EP) for enhanced thermal performance. Pin numbering follows standard counter-clockwise layout starting from top-left corner (Pin 1 = SW2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW1–SW5 | Buck switch node | Connects to inductor for each synchronous buck stage; requires local high-frequency decoupling near each pin. |
| OUT1–OUT5 | Buck output voltage sense | Remote sensing point for feedback loop; also enables 90 Ω internal pull-down when disabled via PULLD[x] register. |
| SW6 | Boost switch node | Connects boost inductor between PVIN6O and SW6; supports short-circuit protection and automatic disconnect. |
| OUT6 | Boost output voltage sense | Senses 7–14 V boost output; enables programmable current-source pull-down during disable. |
| SDA / SCL | I²C bidirectional data/clock | Open-drain interface requiring external pull-ups; supports 3.4 MHz high-speed mode for fast register updates. |
| STBY / EN | Power mode control | STBY enables hardware-triggered standby entry; EN globally enables/disables all regulators and unlocks I²C access. |
| POR / PG | System reset & power-good signaling | POR provides open-drain reset pulse (20 ms typ); PG is masked global power-good output for sequenced system startup. |
| AVIN / AGND | Analog reference supply & ground | AVIN powers internal bandgap and POR; must be decoupled with 2.2 µF ceramic capacitor to AGND for stable regulation. |
Key Features
| Feature | Design Value |
|---|---|
| On-the-fly EEPROM programming | Enables field-updatable voltage levels, sequencing delays, and current limits without firmware change or PCB revision. |
| Ultra-fast buck transient response | Validated via 10 mA → 3 A load steps (Fig 2-29); maintains <1% output deviation using only 10 µF output capacitance per rail. |
| Dual power mode architecture | Standby mode reduces quiescent current to 5 µA while preserving register state; exit via STBY pin or I²C command. |
| Integrated protection suite | Includes thermal shutdown (160°C), per-rail overcurrent limiting, UVLO (2.25 V typ), and boost short-to-ground disconnect. |
| Compact solution size | 12 mm × 8.55 mm × 1.25 mm top-layer footprint - achieves full 6-rail power delivery in space-constrained POS and 3D glasses designs. |
Applications
| Point-of-Sale Terminals | Servers (Management Controllers) |
|---|---|
Use Scenario: Compact, fanless retail terminals requiring multiple isolated voltage rails for ARM SoC, display driver, and secure element. IC Role / Device Role / Timing Role: Central PMIC managing 1.05 V SoC core, 1.8 V I/O, 3.3 V peripherals, and 12 V Flash programming supply with synchronized power-up sequencing. Use Value: Eliminates discrete DC/DC + supervisor IC count; EEPROM programmability allows one BOM across regional variants (EMV, NFC, barcode). |
Use Scenario: Baseboard Management Controller (BMC) power domain in 1U servers where thermal density and board area are constrained. IC Role / Device Role / Timing Role: Supplies 1.25 V BMC processor core, 1.8 V memory interface, and 12 V CPLD configuration rail with independent enable/disable and fault reporting. Use Value: Reduces component count by 7+ devices; 1.3 MHz switching avoids audible noise; thermal shutdown protects against airflow failure. |
| Automotive Infotainment Head Units | 3D Active Shutter Glasses |
Use Scenario: In-vehicle display systems needing robust, low-noise power for GPU, audio codec, and touch controller under wide ambient temperature swings. IC Role / Device Role / Timing Role: Delivers 1.1 V GPU core, 1.8 V video interface, and 7 V backlight boost with –40°C to +125°C junction rating and 1.5% accuracy. Use Value: Replaces three separate buck converters and a boost IC; HyperLight Load® mode ensures <200 µA quiescent current during display sleep. |
Use Scenario: Battery-powered 3D shutter glasses requiring ultra-low standby power and rapid wake-up for frame-synchronized lens switching. IC Role / Device Role / Timing Role: Powers 1.8 V microcontroller, 3.3 V RF transceiver, and 12 V LCD shutter drivers with 5 µA shutdown current and <1 ms wake latency via STBY pin. Use Value: Extends coin-cell battery life beyond 100 hours; soft-start prevents lens flicker during power-on; I²C allows firmware-controlled voltage scaling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-rail PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP8859GQ-Z (Monolithic Power) | Four buck + one boost; no EEPROM; fixed 1.2 MHz switching; 0.8 V–3.3 V buck range only. | Lacks runtime reconfiguration and wider boost range (7–14 V); suitable for cost-sensitive, static-rail designs. | Select when EEPROM programmability and 12 V Flash supply are not required; offers lower unit cost but higher design iteration effort. |
| TPS65218D0 (Texas Instruments) | Four buck + one LDO + one boost; I²C interface; no internal EEPROM; 1.8 V–5.5 V input; 0.9 V–3.3 V buck outputs. | Includes integrated LDO for low-noise analog rails; lacks 12 V boost capability and standalone EEPROM storage for settings. | Prefer for mixed-signal SoC platforms needing clean LDO rails; avoid if 12 V Flash programming or field-updatable sequencing is mandatory. |
Compared with MP8859GQ-Z and TPS65218D0, the MIC7401YFL-T5 uniquely combines EEPROM-based configuration persistence, 12 V boost capability, and ±1% accuracy across five independent bucks-making it optimal for field-deployed devices requiring post-production voltage tuning and Flash programming support.
Availability
MIC7401YFL-T5 is available at Aetrix Electronics and suitable for point-of-sale terminals, server management controllers, and automotive infotainment systems requiring stable component supply, long-term lifecycle assurance, and qualified industrial-temperature operation.
Supply support for MIC7401YFL-T5 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
Microchip Technology is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and power management solutions with broad industrial and automotive qualification.
The MIC7401YFL-T5 belongs to Microchip's configurable PMIC product line, designed specifically for low-power FPGA, ASIC, and application processor platforms requiring flexible, compact, and field-programmable multi-rail power delivery.
FAQ
What is the maximum output current supported by each buck regulator in the MIC7401YFL-T5?
Each of the five synchronous buck regulators in the MIC7401YFL-T5 supports up to 3 A continuous output current. Buck channels 1–3 and 5 are rated for 3.075–5.125 A current-limit thresholds, while Buck 4 supports up to 7.32 A. These values are confirmed in Table 1-1 of the DS20005618A datasheet and validated under thermal constraints up to +125°C junction temperature. The MIC7401YFL-T5 achieves this with integrated 40 mΩ high-side and 30 mΩ low-side MOSFETs at 5 V input.
Does the MIC7401YFL-T5 support dynamic voltage scaling via I²C during system operation?
Yes, the MIC7401YFL-T5 supports full on-the-fly voltage scaling for all five buck and one boost outputs via its 3.4 MHz I²C interface. This includes real-time adjustment of output voltage levels, soft-start ramp rates, current-limit thresholds, and power-up sequencing delays-all stored in internal EEPROM. The MIC7401YFL-T5 enables firmware-driven adaptation to workload changes without requiring a power cycle or external host processor intervention.
What protection features are integrated into the MIC7401YFL-T5?
The MIC7401YFL-T5 integrates thermal shutdown (160°C trigger, 20°C hysteresis), per-buck overcurrent limiting (programmable thresholds), input undervoltage lockout (2.25 V typical), boost short-to-ground detection with automatic disconnect, and output pull-down resistors (90 Ω for bucks, programmable current source for boost). All protections are hardware-enforced and operate independently of I²C communication, ensuring fail-safe behavior even during firmware hangs. These features are documented in Sections 1.0 and 3.0 of the DS20005618A datasheet.
Can the MIC7401YFL-T5 generate a 12 V output for Flash memory programming?
Yes, the MIC7401YFL-T5's dedicated boost regulator supports a programmable output range of 7 V to 14 V, including a precise 12 V setting commonly used for NAND/NOR Flash memory programming in POS terminals and infotainment systems. Its 2.0 MHz switching frequency, 1.5 µH inductor requirement, and internal disconnect MOSFET (90 mΩ) ensure efficient, reliable high-voltage generation with zero input current draw during shutdown. This capability is explicitly stated in the General Description and Electrical Characteristics sections of the DS20005618A datasheet.
Is the MIC7401YFL-T5 pin-compatible with other members of the MIC74xx family?
No, the MIC7401YFL-T5 is not pin-compatible with other MIC74xx variants such as MIC7400 or MIC7402. While sharing the same 36-pin FQFN package footprint and core architecture, pin assignments for SWx, OUTx, and PVINx differ across the family to accommodate varying channel counts and feature sets. The MIC7401YFL-T5's specific pin mapping-including SW1 on Pin 27 and PVIN6O on Pin 24-is defined exclusively in Table 3-1 of DS20005618A and must be verified per design. Substitution requires full schematic and layout review.
MIC7401YFL-T5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- HyperLight Load®
- Package/Case:
- 36-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up, Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck, Boost
- Output Type:
- Programmable
- Number of Outputs:
- 6
- Voltage - Input (Min):
- 2.4V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.05V, 1.1V, 1.25V, 1.8V, 12V
- Voltage - Output (Max):
- -
- Current - Output:
- 200mA, 3A
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 36-FQFN (4.5x4.5)
MIC7401YFL-T5 FAQ
1.How can I place an order for MIC7401YFL-T5 through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC7401YFL-T5 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 MIC7401YFL-T5 reliable?
The price and inventory of MIC7401YFL-T5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC7401YFL-T5 is usually 5 days.
3.What payment methods are accepted for MIC7401YFL-T5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC7401YFL-T5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC7401YFL-T5?
MIC7401YFL-T5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC7401YFL-T5 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 MIC7401YFL-T5?
For technical support, including MIC7401YFL-T5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC7401YFL-T5 requirements.
6.How does Aetrix verify that MIC7401YFL-T5 is sourced from the original manufacturer or authorized distributors?
All MIC7401YFL-T5 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 MIC7401YFL-T5 meets industry standards.
7.What is the process for return or replacement of MIC7401YFL-T5?
All MIC7401YFL-T5 units undergo pre-shipment inspection (PSI). If there is an issue with MIC7401YFL-T5, 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 MIC7401YFL-T5 part is unused and in its original packaging.
Return procedure for MIC7401YFL-T5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC7401YFL-T5 Tags
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