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Microchip Technology MIC4930YFL-TR
- Part No.:
- MIC4930YFL-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-PowerVDFN
- Datasheet:
-
MIC4930YFL-TR.pdf
- Description:
- IC REG BUCK ADJ 3A 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,965
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Product details
Overview
MIC4930YFL-TR from Microchip Technology is a 3A synchronous buck regulator with Hyper Speed Control® architecture, designed for processor core and I/O voltage regulation from 2.7V–5.5V input buses. It delivers up to 95% efficiency at 3.3 MHz switching frequency, supports safe start-up into pre-biased outputs, and features a 0.625V feedback reference with ±1.5% accuracy over temperature.
For engineers reviewing the MIC4930YFL-TR datasheet, MIC4930YFL-TR pinout, MIC4930YFL-TR application, or MIC4930YFL-TR equivalent, this page provides verified technical context, validated pin functions, confirmed thermal and electrical specifications, and real-world design constraints for high-frequency DC/DC conversion in space-constrained embedded systems.
Technical Context
The MIC4930YFL-TR implements a proprietary ripple-based adaptive constant-on-time control loop with three internal timers (min ON, max ON, min OFF), enabling near-constant frequency operation at light loads and smooth transition to ON-time modulation under high duty cycles. Regulation occurs at the valley of the FB ripple waveform in low-duty mode and at the peak in high-duty mode.
It integrates matched P-channel (30 mΩ) and N-channel (25 mΩ) MOSFETs, supports 1 μH inductors and 10 μF ceramic output capacitors without external ripple injection, and includes dedicated AVIN/AGND rails for analog reference stability-separate from high-current PVIN/PGND paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports direct regulation from standard 3.3V and 5V system rails without pre-regulation. |
| Output Current | 3A continuous - sufficient for mid-tier processor cores and FPGA I/O banks in DTVs and set-top boxes. |
| Switching Frequency | Up to 3.3 MHz - enables use of sub-2.2 μH inductors and <10 μF output capacitance while maintaining low output ripple. |
| Feedback Reference | 0.625V ±1.5% - sets output voltage via external resistor divider; enables 0.7V–5.5V programmable VOUT with precision line/load regulation. |
| Junction Temperature | –40°C to +125°C - qualified for industrial and extended-temperature consumer applications including printers and DVD players. |
| Shutdown Current | 0.01 μA - allows ultra-low-power standby states in battery-backed or energy-sensitive systems. |
| Power Good Threshold | 88% of nominal VOUT (±7% hysteresis) - provides reliable power sequencing signal for downstream logic and processors. |
Pinout & Package
Package: 10-pin 3 mm × 4 mm DFN (Flip Chip), exposed pad (EP) for thermal dissipation. Thermal resistance θJA = 35°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, EP | PGND | High-current power ground return path for SW node; must be connected to low-impedance ground plane with short, wide traces. |
| 3, 8 | PVIN | Main power input for internal MOSFETs; requires ≥10 μF ceramic capacitor to PGND for high-frequency decoupling. |
| 4 | AVIN | Analog supply rail for error amplifier and reference; must be decoupled with 1 μF ceramic cap to AGND, isolated from PVIN noise. |
| 5 | AGND | Analog ground reference; connects to quiet ground plane and ties to PGND at single point to avoid noise coupling. |
| 6 | FB | Feedback input referenced to 0.625V internal reference; accepts resistive divider to program VOUT; sensitive to ripple injection. |
| 7 | PG | Open-drain Power Good output; requires external pull-up to VOUT or ≤VIN; asserts high when VOUT ≥88% of target. |
| 9 | EN | Logic-enable input; threshold 0.5–1.2V; drives device into 0.01 μA shutdown state when pulled low; must not float. |
| 10 | SW | Switch node output connecting to inductor; carries high di/dt current; requires tight layout to minimize EMI and ringing. |
Key Features
| Feature | Design Value |
|---|---|
| Hyper Speed Control® topology | Adaptive constant-on-time control with seamless mode transition ensures stable regulation across 0–3A load and 2.7–5.5V input without external compensation. |
| Pre-biased output start-up | Enables safe power sequencing in multi-rail systems where output voltage is already present before enable assertion. |
| Ultra-fast transient response | Sub-20 μs recovery from 1.5A–3A load steps with <200 mV undershoot/overshoot using 10 μF ceramic output capacitor. |
| Integrated low-RDS(ON) MOSFETs | 30 mΩ high-side + 25 mΩ low-side switches reduce conduction losses and eliminate external FET selection complexity. |
| Thermal & current protection | Internal thermal shutdown at 150°C (20°C hysteresis) and cycle-by-cycle current limiting (3.5–8A range) prevent damage during fault conditions. |
Applications
| Digital TV Power Rails | Set-Top Box Core Supply |
|---|---|
Use Scenario: Regulating 1.2V/1.8V core and I/O voltages for SoCs in broadcast receivers operating from 5V main rail. IC Role / Device Role / Timing Role: Primary synchronous buck converter delivering tightly regulated, low-noise DC power with fast load-step response. Use Value: Enables compliance with HDMI CEC and audio subsystem noise budgets while supporting burst-mode video processing loads. |
Use Scenario: Generating 2.5V/3.3V I/O supplies for tuners, demodulators, and USB peripherals in cable/satellite STBs. IC Role / Device Role / Timing Role: High-efficiency point-of-load regulator with Power Good signaling for coordinated system boot. Use Value: Reduces thermal footprint in sealed enclosures and eliminates need for external current-sense resistors or compensation networks. |
| Printer Engine Control | DVD Player Motor & Logic Supply |
Use Scenario: Powering stepper motor drivers and ASIC controllers in inkjet/laser printer mainboards with 3.3V bus input. IC Role / Device Role / Timing Role: Robust DC/DC stage handling pulsed motor current surges while maintaining clean logic rail. Use Value: Withstands repeated 3A load transients without dropout or thermal throttling, extending service life in high-duty-cycle environments. |
Use Scenario: Supplying 1.8V servo control and 2.5V DSP core in portable DVD players powered by 5V battery packs. IC Role / Device Role / Timing Role: Compact, high-frequency buck regulator minimizing board area and EMI emissions near optical pickup assemblies. Use Value: 3.3 MHz operation allows use of 1.0 μH inductors and avoids audible coil whine in consumer audio-visual devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC4950YFL | 5A rated output current; identical pinout and package; higher RDS(ON) (35/30 mΩ) and lower peak efficiency (93%) at 3A. | Better suited for future-proofing or designs requiring >3A headroom; same PCB layout but higher thermal mass required. | Select MIC4950YFL only if sustained >3.5A load or long-term derating margin is needed; otherwise MIC4930YFL-TR offers optimal size/performance balance. |
| TPS54331DR | 3A output, 28V max input, fixed 500kHz frequency, external compensation required; no pre-bias start-up support. | Targeted at wider-input industrial supplies; lacks integrated PG and safe-start capability critical for consumer electronics sequencing. | Choose TPS54331DR for cost-sensitive 12V-input systems where layout flexibility and external compensation are acceptable trade-offs. |
Compared with MIC4950YFL and TPS54331DR, the MIC4930YFL-TR uniquely combines 3.3 MHz operation, pre-biased start-up, and integrated PG in a 3×4 mm DFN-making it the most space- and sequence-efficient choice for 3.3V/5V-fed consumer digital video platforms.
Availability
MIC4930YFL-TR is available at Aetrix Electronics and suitable for digital TV power rails, set-top box core supplies, printer engine control, DVD player motor & logic supply, and distributed power architectures requiring stable component supply across industrial temperature ranges.
Supply support for MIC4930YFL-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 reliability, longevity, and embedded system integration.
The MIC4930YFL-TR belongs to Microchip's Hyper Speed Control® buck regulator product line, engineered specifically for high-frequency, low-noise, space-constrained DC/DC conversion in consumer multimedia and industrial edge devices.
FAQ
What is the minimum recommended output capacitor value for stable operation of the MIC4930YFL-TR?
The MIC4930YFL-TR is designed for stable operation with a minimum 10 μF ceramic output capacitor. Using X5R or X7R dielectrics is recommended to maintain effective capacitance under DC bias. Smaller values may compromise load transient response and increase output voltage ripple beyond specification limits, especially at full 3A load and 3.3 MHz switching.
Does the MIC4930YFL-TR support power sequencing into a pre-charged output bus?
Yes, the MIC4930YFL-TR explicitly supports safe start-up into a pre-biased output-a key feature for multi-rail systems where downstream circuitry retains residual voltage. This capability is implemented via internal circuitry that prevents reverse current flow and ensures controlled soft-start even when VOUT > 0V at EN assertion.
What is the function of the AVIN and AGND pins on the MIC4930YFL-TR, and why are they separate from PVIN and PGND?
The AVIN and AGND pins supply and reference the internal analog circuitry-including the error amplifier, reference generator, and feedback comparator-while PVIN and PGND handle high-current switching paths. Separation prevents switching noise from degrading regulation accuracy and enables precise 0.625V feedback reference stability across temperature and load.
Can the MIC4930YFL-TR operate reliably at its maximum 3.3 MHz switching frequency across the full –40°C to +125°C junction temperature range?
Yes, the MIC4930YFL-TR maintains switching frequency within 1.2–3.6 MHz across –40°C to +125°C, as verified in Figure 2-14 of the datasheet. At 125°C, typical frequency remains ≥3.0 MHz under 1.8V/3A conditions, ensuring consistent small-component sizing and predictable EMI behavior in thermally demanding environments.
How does the MIC4930YFL-TR achieve ultra-fast transient response without external compensation components?
The MIC4930YFL-TR achieves ultra-fast transient response through its proprietary Hyper Speed Control® ripple-based control loop, which uses internal timing circuits and adaptive on/off time modulation. This eliminates the need for external compensation networks while maintaining stability across 0–3A load steps and 2.7–5.5V input variations-verified in Figures 2-27 and 2-28.
MIC4930YFL-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- Hyper Speed Control®
- Package/Case:
- 10-PowerVDFN
- 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):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.625V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 3A
- Frequency - Switching:
- Up to 3.3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (3x4)
MIC4930YFL-TR FAQ
1.How can I place an order for MIC4930YFL-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC4930YFL-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 MIC4930YFL-TR reliable?
The price and inventory of MIC4930YFL-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC4930YFL-TR is usually 5 days.
3.What payment methods are accepted for MIC4930YFL-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC4930YFL-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC4930YFL-TR?
MIC4930YFL-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC4930YFL-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 MIC4930YFL-TR?
For technical support, including MIC4930YFL-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC4930YFL-TR requirements.
6.How does Aetrix verify that MIC4930YFL-TR is sourced from the original manufacturer or authorized distributors?
All MIC4930YFL-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 MIC4930YFL-TR meets industry standards.
7.What is the process for return or replacement of MIC4930YFL-TR?
All MIC4930YFL-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC4930YFL-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 MIC4930YFL-TR part is unused and in its original packaging.
Return procedure for MIC4930YFL-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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