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Microchip Technology MIC22600YML-TR
- Part No.:
- MIC22600YML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 24-VFQFN Exposed Pad, 24-MLF®
- Datasheet:
-
MIC22600YML-TR.pdf
- Description:
- IC REG BUCK ADJ 6A 24MLF
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
MIC22600YML-TR from Microchip Technology is a 6A, 1 MHz synchronous buck regulator with integrated high-side P-channel and low-side N-channel MOSFETs, adjustable output down to 0.7V, input range 2.6V–5.5V, and full sequencing/tracking capability - deployed in FPGA core power, server point-of-load, and telecom base station DC/DC conversion.
For engineers reviewing the MIC22600YML-TR datasheet, MIC22600YML-TR pinout, MIC22600YML-TR application, or MIC22600YML-TR equivalent, key selection criteria include its 100% duty cycle support, ultra-fast transient response under FPGA load steps, thermal shutdown at 160°C, RC-controlled soft-start for voltage tracking, and QFN-24 (4 mm × 4 mm) package with exposed pad for thermal management.
Technical Context
The MIC22600YML-TR implements voltage-mode PWM control with a fixed 1 MHz oscillator and internal compensation featuring a built-in phase-lead zero and phase-lag pole, enabling stable operation with minimal external components. Its adaptive drive circuitry delivers precise gate timing for the integrated 30 mΩ P-MOSFET and 25 mΩ N-MOSFET switches.
Sequencing is enabled via three dedicated pins: EN/DLY (1 μA current source, 1.24 V threshold), DELAY (1 μA charge/discharge for POR timing), and RC (1 μA programmable slew rate control). The device supports both master-slave tracking (via RC-to-FB coupling) and up/down sequencing using open-drain POR/PG with 10% hysteresis and 90% valid-voltage assertion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.6 V to 5.5 V - supports single-supply operation from common intermediate bus rails (3.3 V, 5 V) without LDO pre-regulation. |
| Output Current | Up to 6 A continuous - sufficient for powering high-current FPGA cores, DSPs, and low-voltage ASICs without external current sharing. |
| Switching Frequency | 1 MHz ±20% - enables use of compact 1 μH inductors and ceramic output capacitors while maintaining predictable EMI fundamentals. |
| Feedback Reference | 0.7 V ±1% - sets minimum output at 0.7 V; allows precise adjustment of 1.2 V, 1.8 V, or 3.3 V rails using standard resistor dividers. |
| Efficiency | >90% across 1–6 A load range - reduces thermal load and PCB area vs. lower-efficiency alternatives, critical in dense server and telecom modules. |
| Thermal Protection | 160°C junction shutdown with 20°C hysteresis - prevents permanent damage during sustained overload or airflow loss in enclosed systems. |
| Package | 24-pin QFN (4 mm × 4 mm, ML variant) - thermally enhanced with exposed pad; θJA = 40°C/W, θJC = 14°C/W per datasheet DS20006288A. |
Pinout & Package
Package: 24-pin 4 mm × 4 mm QFN (ML), thermally enhanced with exposed ground pad (EP). Requires full solder connection to PCB GND plane for rated 6 A performance and thermal derating compliance.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| PVIN (Pins 1,6,13,18) | Power Input Supply | Bypassed separately per pin with ≥10 μF X5R/X7R ceramic; feeds high-side P-MOSFET; must be tied to SVIN externally. |
| SVIN (Pin 17) | Signal Input Supply | Provides bias for internal logic and error amplifier; requires local 10 μF bypass; connected to PVIN net. |
| EN/DLY (Pin 2) | Enable & Startup Delay Control | 1 μA current source charges external capacitor; turn-on delayed until voltage reaches 1.24 V; enables sequencing with precise timing. |
| RC (Pin 4) | Ramp Control | 1 μA current source/sink programs output voltage slew rate; enables soft-start and voltage tracking between multiple MIC22600YML-TR devices. |
| FB (Pin 14) | Feedback Input | Connects to resistor divider; compares against 0.7 V reference; determines regulated output voltage; sensitive to noise - requires low-impedance path. |
| COMP (Pin 15) | Compensation Node | External RC network (e.g., 20 kΩ + 15–33 pF) stabilizes voltage-mode loop; simplifies design vs. full Type II/III compensation. |
| POR/PG (Pin 5) | Power-On Reset / Power Good | Open-drain output asserted high when VOUT ≥ 90% of nominal after DELAY timeout; used for system reset coordination and fault signaling. |
| DELAY (Pin 3) | POR Timing Control | 1 μA charge/discharge current sets POR assertion delay on startup and controlled ramp-down timing on shutdown. |
| SW (Pins 8–11,20–23) | Switch Node | Drain connection of internal P-MOSFET and N-MOSFET; high di/dt node requiring short, wide PCB traces and tight layout to minimize EMI and ringing. |
| PGND (Pins 7,12,19,24) | Power Ground | Source connection of internal N-MOSFET; must be routed separately from SGND and tied to EP for optimal thermal and electrical performance. |
| SGND (Pin 16) | Signal Ground | Reference for FB, COMP, EN/DLY, RC, DELAY, and POR/PG; isolated from PGND to prevent noise coupling into control loop. |
| EP | Exposed Thermal Pad | Must be soldered fully to internal/external GND plane; primary thermal path - failure to connect de-rates max current below 6 A. |
Key Features
| Feature | Design Value |
|---|---|
| Fully Integrated Power Stage | On-chip 30 mΩ P-MOSFET and 25 mΩ N-MOSFET eliminate external switch selection, gate drivers, and layout complexity for 6 A loads. |
| Ultra-Fast Transient Response | Stabilizes within 200 μs under 0.6 A → 6 A load step (per Fig 2-20); maintains ±1% regulation for FPGA dynamic current demands without external compensation tuning. |
| Programmable Sequencing & Tracking | Three dedicated pins (EN/DLY, DELAY, RC) enable deterministic multi-rail power-up/down order and ratio-metric voltage ramping - no external controllers required. |
| Micropower Shutdown | 5 μA typical shutdown current (Fig 2-2); extends battery life in portable applications and reduces standby losses in always-on systems. |
| 100% Duty Cycle Operation | Supports dropout conditions (e.g., VIN = 2.6 V → VOUT = 1.8 V); maintains regulation without pulse-skipping or frequency foldback artifacts. |
| Robust Protection Suite | Includes thermal shutdown (160°C), overcurrent limiting (9 A typ), UVLO (2.5 V threshold), and open-drain POR/PG with 10% hysteresis for system-level fault detection. |
Applications
| FPGA Core Power | Server Point-of-Load |
|---|---|
|
Use Scenario: Delivering tightly regulated 0.85–1.2 V at up to 6 A to Xilinx or Intel FPGA core logic under dynamic switching loads. IC Role / Device Role / Timing Role: Primary synchronous buck regulator with fast transient response and RC-programmed soft-start to meet FPGA configuration timing requirements. Use Value: Eliminates need for external current-sense amplifiers or digital PMBus controllers; achieves <±1% output accuracy and <200 μs recovery from 80% load step. |
Use Scenario: Generating 1.8 V or 3.3 V rails for CPU I/O, memory buffers, or PCIe switch logic in 1U rack servers with strict thermal envelope limits. IC Role / Device Role / Timing Role: High-density POL converter operating at 1 MHz to minimize inductor size while maintaining >90% efficiency at 4–6 A. Use Value: Reduces total solution footprint by 35% vs. discrete controller + MOSFET solutions; exposed pad enables direct thermal coupling to heatsink or chassis. |
| Telecom Base Station RF Power | DVD Recorder SoC Supply |
|
Use Scenario: Powering RF transceiver ASICs requiring clean, low-noise 1.2 V supply with precise sequencing relative to analog front-end rails. IC Role / Device Role / Timing Role: Sequenced POL regulator synchronized via RC pin to adjacent MIC22600YML-TR units for simultaneous voltage ramping across RF chain. Use Value: Prevents latch-up or brownout during power-up by enforcing ∆V < 50 mV between interdependent rails - verified in Fig 2-27/2-28. |
Use Scenario: Supplying 1.5 V and 3.3 V to DVD recorder SoC (e.g., Realtek RTD1185) with strict cost and board space constraints. IC Role / Device Role / Timing Role: Dual-output POL solution using two MIC22600YML-TR ICs with EN/DLY and DELAY pin coordination for "I/O before core" power sequence. Use Value: Replaces legacy multi-chip solutions with single-package integration, reducing BOM count by 40% and eliminating discrete timing RC networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2315DJ-LF-Z | 4 A rated, 2.5–6 V input, 500 kHz switching, no integrated RC/DELAY sequencing pins. | Lacks dedicated tracking/sequencing capability; requires external logic for multi-rail coordination. | Select when cost sensitivity outweighs sequencing needs and 4 A output suffices. |
| TPS546B24RVFT | 6 A, 4–18 V input, PMBus-enabled, 500 kHz–2 MHz programmable frequency, larger 3.5 mm × 4.5 mm QFN. | Supports digital telemetry and margining but adds firmware overhead and layout complexity. | Select when remote monitoring, dynamic voltage scaling, or tighter output tolerance (<±0.5%) are required. |
Compared with MP2315DJ-LF-Z and TPS546B24RVFT, the MIC22600YML-TR uniquely combines 6 A capability, 1 MHz fixed frequency, and hardware-based sequencing in a compact 4 mm × 4 mm QFN - making it optimal for space-constrained, analog-controlled FPGA and telecom POL designs where digital interface adds unnecessary cost and complexity.
Availability
MIC22600YML-TR is available at Aetrix Electronics and suitable for FPGA core power, server point-of-load conversion, and telecom base station RF power applications requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for MIC22600YML-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 Inc. is a leading provider of microcontrollers, analog devices, and power management ICs, with a focus on reliability, longevity, and industrial-grade qualification.
The MIC22600YML-TR belongs to Microchip's MIC22xxx family of high-current synchronous buck regulators, designed specifically for high-power-density, low-noise point-of-load conversion in computing, networking, and communications infrastructure.
FAQ
What is the maximum output current capability of the MIC22600YML-TR?
The MIC22600YML-TR delivers up to 6 A continuous output current under recommended thermal conditions (θJA ≤ 40°C/W, TJ ≤ +125°C). Its current limit is specified at 6.5–11.5 A depending on FB voltage, and it includes internal thermal shutdown at 160°C to protect against sustained overload. Derating is required above +85°C ambient.
Does the MIC22600YML-TR support adjustable output voltage, and what is the minimum setting?
Yes, the MIC22600YML-TR supports adjustable output voltage via an external resistor divider on the FB pin. Its internal reference is 0.7 V ±1%, allowing outputs as low as 0.7 V. For example, a 1.8 V output uses R1 = 15.8 kΩ and R2 = 10 kΩ (per Equation 5-5 in DS20006288A), and the feedback node must be kept low-impedance to avoid noise-induced regulation errors.
How does the RC pin function in the MIC22600YML-TR, and what capacitor value is recommended?
The RC pin in the MIC22600YML-TR sources/sinks a trimmed 1 μA current to program output voltage slew rate during startup and shutdown. A minimum 220 pF capacitor to ground is required (not floating), with typical values ranging from 1 nF to 10 nF depending on desired ramp time. It enables hardware-based voltage tracking between multiple MIC22600YML-TR devices without external controllers.
What package type is used for the MIC22600YML-TR, and how should the exposed pad be handled?
The MIC22600YML-TR uses a 24-pin 4 mm × 4 mm QFN package (ML variant) with an exposed thermal pad (EP). This pad must be fully soldered to a solid PCB GND plane to achieve rated 6 A performance and thermal resistance of θJC = 14°C/W. Inadequate EP connection causes premature thermal shutdown and current derating.
Can the MIC22600YML-TR operate with 100% duty cycle, and under what conditions?
Yes, the MIC22600YML-TR supports 100% duty cycle operation when the FB voltage drops to ≤0.5×VNOM, enabling regulation even during input voltage dropout (e.g., VIN = 2.6 V → VOUT = 1.8 V). This behavior is confirmed in Electrical Characteristics Table (DS20006288A, page 3) and avoids pulse-skipping artifacts common in current-mode controllers.
MIC22600YML-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad, 24-MLF®
- 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):
- 2.6V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.7V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 6A
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-MLF® (4x4)
MIC22600YML-TR FAQ
1.How can I place an order for MIC22600YML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC22600YML-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 MIC22600YML-TR reliable?
The price and inventory of MIC22600YML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC22600YML-TR is usually 5 days.
3.What payment methods are accepted for MIC22600YML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC22600YML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC22600YML-TR?
MIC22600YML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC22600YML-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 MIC22600YML-TR?
For technical support, including MIC22600YML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC22600YML-TR requirements.
6.How does Aetrix verify that MIC22600YML-TR is sourced from the original manufacturer or authorized distributors?
All MIC22600YML-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 MIC22600YML-TR meets industry standards.
7.What is the process for return or replacement of MIC22600YML-TR?
All MIC22600YML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC22600YML-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 MIC22600YML-TR part is unused and in its original packaging.
Return procedure for MIC22600YML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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