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Microchip Technology MIC45116-2YMP-TR
- Part No.:
- MIC45116-2YMP-TR
- Manufacturer:
- Microchip Technology
- Package:
- 52-PowerBFQFN
- Datasheet:
-
MIC45116-2YMP-TR.pdf
- Description:
- IC REG BUCK ADJ 6A 52QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,390
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Product details
Overview
MIC45116-2YMP-TR from Microchip Technology is a synchronous step-down regulator module with Hyper Speed Control® architecture, delivering up to 6A output current at 0.8V–85% of input voltage (4.75V–20V), ±1% output accuracy, and fixed 600 kHz switching frequency for high-power-density point-of-load conversion in FPGA and ASIC power supplies.
For engineers reviewing the MIC45116-2YMP-TR datasheet, MIC45116-2YMP-TR pinout, MIC45116-2YMP-TR application, or MIC45116-2YMP-TR equivalent, this page provides verified technical context, validated pin functions, confirmed thermal and transient performance, and real-world selection guidance for industrial and telecom DC/DC design.
Technical Context
The MIC45116-2YMP-TR implements adaptive ON-time control with Hyper Speed Control® architecture, enabling ultra-fast load transient response by dynamically adjusting OFF-time while maintaining nominal 600 kHz frequency in steady state. It senses output voltage ripple via FB to trigger ON-time, eliminating need for external compensation.
It integrates controller, dual MOSFETs, bootstrap diode, bootstrap capacitor, and 1.0 µH inductor in a single 52-pin QFN package. Current limiting uses low-side RDS(ON) sensing with adjustable threshold via ILIM-to-SW resistor; short-circuit protection operates in hiccup mode with foldback during hard shorts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Up to 6A continuous - supports high-current FPGA core rails without external heatsinking under 4.75–20V input. |
| Input Voltage Range | 4.75V to 20V - enables direct use with 5V, 12V, and 19V intermediate bus architectures. |
| Output Accuracy | ±1% over –40°C to +125°C - ensures stable voltage regulation for sensitive DSP and ASIC logic domains. |
| Switching Frequency | Fixed 600 kHz (400–750 kHz range) - balances EMI control, inductor size, and efficiency across load conditions. |
| Junction Temperature | –40°C to +125°C operating range - qualified for industrial and telecom base station environments. |
| Thermal Resistance | θJA = 22°C/W - enables 6A operation with minimal PCB copper area when using exposed PGND ePAD. |
| Power Good Output | Open-drain PG with 85–95% VFB threshold and 80 µs delay - provides reliable system sequencing and fault signaling. |
Pinout & Package
Package: 52-pin 8 mm × 8 mm × 3 mm QFN with three exposed thermal pads - VOUT ePAD, SW ePAD, and PGND ePAD - requiring dedicated PCB thermal vias per Microchip layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PVIN (Pins 1,2,52) | High-side MOSFET drain input | Primary power input node; must connect to ≥10 µF input capacitor bank referenced to PGND. |
| SW (Pins 8–10,48–51) | Switch node | Connects directly to internal high/low-side MOSFET junction; carries full switching current and requires tight routing away from analog nodes. |
| VOUT (Pins 12–21,27–30,32–34,40,41) | Regulated output | Direct connection to integrated inductor; output capacitors must be placed adjacent to these pins and PGND ePAD. |
| PGND (Pins 26,31,35,42,45) | Power ground return | Return path for power stage; internally tied to low-side MOSFET source and all capacitor negatives - must be solidly connected to PCB ground plane. |
| FB (Pin 36) | Feedback reference input | Senses 0.8V reference; sets output via resistor divider (RFB1/RFB2) - allows adjustment from 0.8V to 85% of PVIN. |
| EN (Pin 38) | Enable control | TTL/CMOS-compatible input (1.8V high, 0.6V low); internal 1 MΩ pull-down prevents floating - enables precise power sequencing. |
| PG (Pin 37) | Power good indicator | Open-drain output requiring ≥10 kΩ external pull-up; asserts high when VFB reaches 85–95% of 0.8V - used for system enable/disable coordination. |
| ILIM (Pin 47) | Current limit programming | Connect resistor between ILIM and SW to set overcurrent threshold; supports adjustable protection from 3A to 8A based on RILIM. |
Key Features
| Feature | Design Value |
|---|---|
| Hyper Speed Control® architecture | Enables <100 µs load transient recovery (3A→6A step) with minimal output capacitance - reduces BOM count and board space. |
| Integrated 1.0 µH power inductor | Eliminates external inductor selection, placement, and EMI shielding - simplifies layout and accelerates prototyping. |
| Safe start-up into pre-biased output | Allows hot-swap and rail sequencing without reverse current or output overshoot - critical for multi-rail systems with staggered power-up. |
| Hiccup-mode short-circuit protection | Shuts down during sustained overload, then auto-retries after cooldown - prevents thermal runaway and enables self-recovery in field deployments. |
| Adjustable current limit via ILIM pin | Supports precise ILIM tuning (3–8A typical) using single external resistor - avoids overdesign while ensuring robustness against downstream faults. |
Applications
| FPGA Core Power Supply | DSP/ASIC Point-of-Load Conversion |
|---|---|
Use Scenario: Delivering 1.2V/4A to Xilinx Kintex-7 FPGA core rails in 1U server blade with strict thermal envelope. IC Role / Device Role / Timing Role: Primary synchronous buck regulator module providing tightly regulated, low-noise core voltage with fast transient response to logic switching events. Use Value: Reduces required output capacitance by 40% vs. conventional controllers due to Hyper Speed Control®, lowering total solution size and cost. |
Use Scenario: Generating 0.85V/5A for TI C66x DSP in wireless baseband processing unit with -40°C to +85°C ambient requirement. IC Role / Device Role / Timing Role: Integrated DC/DC module supplying precision voltage with ±1% accuracy and thermal shutdown at 160°C junction. Use Value: Eliminates discrete inductor and MOSFET layout challenges, achieving >93% peak efficiency at 12V input without forced airflow. |
| Industrial PLC CPU Power | Medical Imaging Subsystem Rail |
Use Scenario: Powering ARM Cortex-A9-based controller in DIN-rail mounted PLC with 24V bus and 15-year service life requirement. IC Role / Device Role / Timing Role: High-reliability step-down module supporting safe start-up into pre-biased 1.8V rail during hot-swap I/O module insertion. Use Value: Internal thermal shutdown (160°C) and hiccup-mode protection ensure uninterrupted operation during extended overloads in unventilated enclosures. |
Use Scenario: Supplying 3.3V/3A to ADC front-end and FPGA timing circuitry in portable ultrasound device with battery + adapter dual-input support. IC Role / Device Role / Timing Role: Compact, fully shielded power module meeting IEC 60601 leakage and EMI requirements for Class II medical equipment. Use Value: Integrated inductor and QFN package reduce radiated emissions below CISPR-32 limits without added ferrite beads or shielding cans. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPM3695-25 from Monolithic Power Systems | 4A rated, 2.5MHz switching, smaller 4mm × 4mm package; no adjustable current limit or pre-bias start-up. | Better suited for space-constrained consumer electronics; lacks hiccup-mode protection and wide-temp qualification. | Select when board area is primary constraint and industrial temp range not required. |
| TPSM84624 from Texas Instruments | 6A rated, 500kHz, integrated LDO for bias rail; requires external soft-start capacitor and has no ILIM pin. | Stronger for mixed-signal systems needing clean auxiliary 3.3V; less flexible for custom current limiting or fast transient optimization. | Select when dual-rail (core + I/O) generation is needed and TI ecosystem support is preferred. |
Compared with MPM3695-25 and TPSM84624, the MIC45116-2YMP-TR uniquely combines 6A capability, Hyper Speed Control® for sub-100µs transients, programmable current limit, and guaranteed –40°C to +125°C operation - making it optimal for ruggedized telecom and industrial PoL designs where reliability and dynamic performance are co-prioritized.
Availability
MIC45116-2YMP-TR is available at Aetrix Electronics and suitable for FPGA power supplies, telecom base station PoL conversion, and industrial PLC CPU rails requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MIC45116-2YMP-TR 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 global semiconductor company specializing in microcontrollers, analog devices, and power management ICs, with emphasis on industrial, automotive, and communications markets.
The MIC45116 product line delivers fully integrated DC/DC modules targeting high-efficiency, high-power-density point-of-load conversion for FPGAs, ASICs, and DSPs in thermally constrained environments.
FAQ
What is the maximum output current rating of the MIC45116-2YMP-TR?
The MIC45116-2YMP-TR is rated for up to 6A continuous output current across its full input voltage range (4.75V–20V) and operating temperature range (–40°C to +125°C), as validated in Microchip's DS20005571A datasheet under thermal test conditions with proper PCB thermal management.
Does the MIC45116-2YMP-TR support start-up into a pre-biased output voltage?
Yes, the MIC45116-2YMP-TR supports safe start-up into a pre-biased output, as confirmed in the Functional Description section of DS20005571A. This feature prevents reverse current flow and output overshoot during hot-swap or multi-rail sequencing scenarios involving the MIC45116-2YMP-TR.
How is output voltage adjusted on the MIC45116-2YMP-TR?
Output voltage on the MIC45116-2YMP-TR is adjusted using an external resistor divider connected to the FB pin, referencing the internal 0.8V feedback threshold. The output can be set from 0.8V up to 85% of the PVIN voltage, with ±1% accuracy over temperature, as specified in Table 1-1 of DS20005571A.
What protection features does the MIC45116-2YMP-TR include?
The MIC45116-2YMP-TR includes thermal shutdown (160°C trip, 15°C hysteresis), hiccup-mode short-circuit protection, adjustable overcurrent limiting via the ILIM pin, and under-voltage lockout on the 5VDD rail. All protections are implemented in hardware and validated across –40°C to +125°C operation.
Is the MIC45116-2YMP-TR pin-compatible with the MIC45116-1YMP-TR?
No, the MIC45116-2YMP-TR and MIC45116-1YMP-TR share identical pinout and package but differ in control architecture: MIC45116-2YMP-TR uses Hyper Speed Control® for fast transients, while MIC45116-1YMP-TR uses HyperLight Load® for light-load efficiency. They are not functionally interchangeable without circuit re-optimization.
MIC45116-2YMP-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- Hyper Speed Control®
- Package/Case:
- 52-PowerBFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 4.75V
- Voltage - Input (Max):
- 20V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 17V
- Current - Output:
- 6A
- Frequency - Switching:
- 600kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 52-QFN (8x8)
MIC45116-2YMP-TR FAQ
1.How can I place an order for MIC45116-2YMP-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC45116-2YMP-TR 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 MIC45116-2YMP-TR reliable?
The price and inventory of MIC45116-2YMP-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC45116-2YMP-TR is usually 5 days.
3.What payment methods are accepted for MIC45116-2YMP-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC45116-2YMP-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC45116-2YMP-TR?
MIC45116-2YMP-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC45116-2YMP-TR 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 MIC45116-2YMP-TR?
For technical support, including MIC45116-2YMP-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC45116-2YMP-TR requirements.
6.How does Aetrix verify that MIC45116-2YMP-TR is sourced from the original manufacturer or authorized distributors?
All MIC45116-2YMP-TR 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 MIC45116-2YMP-TR meets industry standards.
7.What is the process for return or replacement of MIC45116-2YMP-TR?
All MIC45116-2YMP-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC45116-2YMP-TR, 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 MIC45116-2YMP-TR part is unused and in its original packaging.
Return procedure for MIC45116-2YMP-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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