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Microchip Technology MIC4930YFL-T5
- Part No.:
- MIC4930YFL-T5
- Manufacturer:
- Microchip Technology
- Package:
- 10-PowerVDFN
- Datasheet:
-
MIC4930YFL-T5.pdf
- Description:
- IC REG BUCK ADJ 3A 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,579
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Product details
Overview
MIC4930YFL-T5 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 internal reference with ±1.5% feedback accuracy over temperature.
For engineers reviewing the MIC4930YFL-T5 datasheet, MIC4930YFL-T5 pinout, MIC4930YFL-T5 application, or MIC4930YFL-T5 equivalent, this page provides verified technical context, validated pin functions, confirmed thermal and electrical specifications, and real-world design constraints including DFN-10L layout requirements, PGND/AGND separation, and external ripple injection thresholds.
Technical Context
The MIC4930YFL-T5 implements a proprietary ripple-based adaptive constant-ON-time control loop with three timing limits: minimum ON time (665 ns typ), minimum OFF time (176 ns typ), and maximum ON time. Regulation shifts between valley-mode (low duty cycle) and peak-mode (high duty cycle) depending on input voltage and load, directly impacting line regulation behavior across wide VIN ranges.
It integrates matched P-channel (30 mΩ RDS(ON)) and N-channel (25 mΩ RDS(ON)) MOSFETs, uses separate PVIN/AVIN supplies with dedicated PGND/AGND pins, and includes an open-drain Power Good output referenced to 88% of nominal VOUT with 7% hysteresis - all operating across –40°C to +125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports direct connection to 3.3V or 5V system rails without pre-regulation. |
| Output Current | 3A continuous - sufficient for mid-power processor cores and FPGA I/O banks. |
| Switching Frequency | Up to 3.3 MHz - enables use of ≤1 μH inductors and 10 μF ceramic output capacitors, reducing solution size. |
| Feedback Reference | 0.625V ±1.5% - sets output voltage via external resistor divider; enables 0.7V–5.5V programmable range. |
| Shutdown Current | 0.01 μA - allows ultra-low power state retention in battery-backed or always-on systems. |
| Junction Temp Range | –40°C to +125°C - qualified for industrial and extended-temperature embedded applications. |
| Package | 3 mm × 4 mm DFN-10L with exposed pad - requires thermal land pattern per Microchip DS20005669A-page 17. |
Pinout & Package
Package: 10-pin 3 mm × 4 mm DFN (Flip Chip), thermally enhanced with exposed pad (EP). Requires solder paste stencil design per Microchip's recommended land pattern (DS20005669A-page 17).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, EP | PGND | High-current power ground return for SW node; must be connected to low-inductance ground plane with short trace. |
| 3, 8 | PVIN | Main power input for internal MOSFETs; requires ≥10 μF X5R/X7R ceramic capacitor to PGND. |
| 4 | AVIN | Analog supply for reference and error amplifier; decoupled with ≥1 μF ceramic cap to AGND. |
| 5 | AGND | Low-noise analog ground; must be isolated from PGND except at single-point star connection. |
| 6 | FB | Feedback input referenced to 0.625V; accepts resistive divider; internal ripple injection active. |
| 7 | PG | Open-drain Power Good output; requires external pull-up (≥10 kΩ) to VOUT or VIN. |
| 9 | EN | Active-high enable; logic high >0.8V activates regulator; <0.5V shuts down with 0.01 μA quiescent current. |
| 10 | SW | Switch node connecting internal high-side and low-side MOSFETs; drives external inductor. |
Key Features
| Feature | Design Value |
|---|---|
| Hyper Speed Control® topology | Adaptive constant-ON-time ripple control with mode transition between valley and peak regulation - enables stable operation across 0.1–3A loads without external compensation. |
| Safe pre-biased start-up | Starts regulation without forcing reverse current into already-biased output rail - critical for hot-swap and multi-rail sequencing. |
| Ultra-fast transient response | Sub-20 μs recovery from 1.5A–3A load steps (DS20005669A-page 10, FIG 2-27/2-28) - maintains <200 mV droop with 10 μF COUT. |
| Integrated MOSFETs | Matched 30 mΩ P-ch / 25 mΩ N-ch switches - eliminates external FET selection and gate drive complexity. |
| Power Good monitoring | Open-drain PG output with 88% VOUT threshold and 7% hysteresis - provides reliable power sequencing signal for downstream logic. |
Applications
| DTV Power Management | Set-Top Box Core Supply |
|---|---|
Use Scenario: Regulating 1.2V/1.8V core and I/O voltages for SoC in digital television receivers under dynamic video workload. IC Role / Device Role / Timing Role: Primary synchronous buck converter delivering 3A peak current with <20 μs transient response to prevent brownout during scene changes. Use Value: Eliminates need for external compensation or ripple injection due to integrated Hyper Speed Control®, reducing BOM count by 2–3 passive components. |
Use Scenario: Providing stable 2.5V/3.3V I/O rail for HDMI interface and memory controllers in cable/satellite set-top boxes. IC Role / Device Role / Timing Role: High-frequency (3.3 MHz) buck regulator enabling compact 1 μH inductor + 10 μF ceramic capacitor solution. Use Value: Achieves 95% peak efficiency at full load, lowering thermal load in sealed plastic enclosures without heatsinks. |
| Printer Engine Controller | Distributed Power Architecture |
Use Scenario: Generating 1.8V logic supply for motor control MCU and sensor interface in multifunction printers. IC Role / Device Role / Timing Role: Buck regulator with pre-biased start-up capability ensuring clean power-up when auxiliary rails are already active. Use Value: Prevents backfeeding and latch-up during complex power sequencing - verified in DS20005669A-page 9, FIG 2-22. |
Use Scenario: Local point-of-load conversion from 5V/3.3V backplane to 1.0V–2.5V sub-system rails in network equipment. IC Role / Device Role / Timing Role: Compact DFN-10L buck regulator supporting multiple output voltages via FB divider, with PG signal for system-level health monitoring. Use Value: Exposed thermal pad and 35°C/W θJA allow 3A operation at +85°C ambient without derating in dense PCB layouts. |
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) but same control architecture. | Required where peak load exceeds 3A; supports same layout but needs larger inductor/capacitor for thermal margin. | Select MIC4950YFL only if sustained >3.5A load or higher current limit headroom is required - no change to schematic or footprint. |
| MP2332HGTL-Z | 3A rating, 2.2–5.5V input, 500 kHz–2.2 MHz adjustable frequency; different control scheme (current-mode); no pre-bias start-up support. | Used where lower EMI is prioritized over transient speed; lacks safe pre-biased start-up and PG output. | Choose MP2332HGTL-Z for cost-sensitive designs with fixed 1.2V/1.8V outputs and relaxed transient specs - requires new layout and compensation. |
Compared with MIC4950YFL, the MIC4930YFL-T5 offers tighter thermal design at 3A with lower RDS(ON), while MP2332HGTL-Z trades transient performance and sequencing safety for wider frequency adjustability and lower BOM cost - neither is pin-compatible nor drop-in.
Availability
MIC4930YFL-T5 is available at Aetrix Electronics and suitable for DTVs, set-top boxes, and printer engine controllers requiring stable component supply, long-term lifecycle assurance, and guaranteed traceable sourcing.
Supply support for MIC4930YFL-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 company specializing in microcontrollers, analog devices, and power management ICs, with broad industrial and automotive qualification coverage.
The MIC4930YFL-T5 belongs to Microchip's Hyper Speed Control® buck regulator product line, engineered for high-frequency, low-ripple point-of-load conversion in space-constrained consumer and industrial systems.
FAQ
What is the maximum supported switching frequency for MIC4930YFL-T5?
The MIC4930YFL-T5 operates up to 3.3 MHz, as confirmed in the General Description (DS20005669A-page 1) and Typical Performance Curves (page 8, FIG 2-14–2-17). This frequency is not user-adjustable but varies dynamically with load and input voltage under its adaptive constant-ON-time control scheme. At 3A load and 5V input, typical frequency is ~3.2 MHz.
Does MIC4930YFL-T5 support start-up into a pre-biased output voltage?
Yes, MIC4930YFL-T5 explicitly supports safe start-up into a pre-biased output, as stated in both the Features list and Functional Description (DS20005669A-page 1 and page 11). This prevents reverse current flow during power sequencing and is validated in FIG 2-22 (page 9) showing successful 1.4V pre-bias start-up.
What are the exact thermal resistance and junction temperature limits for MIC4930YFL-T5?
MIC4930YFL-T5 has a θJA of 35°C/W (DS20005669A-page 5) and a maximum junction temperature of +125°C (page 1). Its operating junction temperature range is –40°C to +125°C, and storage temperature extends to –65°C to +150°C. Thermal design must ensure power dissipation stays within limits using the exposed pad and proper PCB copper area.
Can MIC4930YFL-T5 be used with ceramic output capacitors smaller than 10 μF?
No - the datasheet specifies "designed for use with an output ceramic capacitor as small as 10 μF" (page 1) and requires ≥10 μF for stable operation without external ripple injection (page 15). Using <10 μF risks instability, especially at light loads, due to insufficient FB ripple amplitude for the internal ripple-based control loop.
What is the function of the AVIN and AGND pins on MIC4930YFL-T5?
AVIN supplies clean power to the internal reference and error amplifier; it must be decoupled with ≥1 μF ceramic capacitor to AGND. AGND is the quiet analog ground reference, strictly separated from PGND except at one star point - routing power currents on AGND causes regulation errors and noise coupling into the FB node.
MIC4930YFL-T5 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-T5 FAQ
1.How can I place an order for MIC4930YFL-T5 through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC4930YFL-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 MIC4930YFL-T5 reliable?
The price and inventory of MIC4930YFL-T5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC4930YFL-T5 is usually 5 days.
3.What payment methods are accepted for MIC4930YFL-T5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC4930YFL-T5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC4930YFL-T5?
MIC4930YFL-T5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC4930YFL-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 MIC4930YFL-T5?
For technical support, including MIC4930YFL-T5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC4930YFL-T5 requirements.
6.How does Aetrix verify that MIC4930YFL-T5 is sourced from the original manufacturer or authorized distributors?
All MIC4930YFL-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 MIC4930YFL-T5 meets industry standards.
7.What is the process for return or replacement of MIC4930YFL-T5?
All MIC4930YFL-T5 units undergo pre-shipment inspection (PSI). If there is an issue with MIC4930YFL-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 MIC4930YFL-T5 part is unused and in its original packaging.
Return procedure for MIC4930YFL-T5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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