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Microchip Technology MIC4723YMME-TR
- Part No.:
- MIC4723YMME-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
MIC4723YMME-TR.pdf
- Description:
- IC REG BUCK ADJ 3A 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,749
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Product details
Overview
MIC4723YMME-TR from Micrel is a 3A, 2MHz non-synchronous buck regulator IC with integrated p-channel MOSFET switch, adjustable output down to 1V, and operation from 3.0V to 5.5V input. It delivers up to 94% efficiency, supports 100% duty cycle for low-dropout operation, and targets FPGA/DSP point-of-load power delivery in compact industrial and computing systems.
For engineers reviewing the MIC4723YMME-TR datasheet, MIC4723YMME-TR pinout, MIC4723YMME-TR application, or MIC4723YMME-TR equivalent, key selection considerations include its 10-pin ePAD MSOP package, internal compensation enabling stable operation with 1µH/4.7µF output filter, thermal shutdown and current limit protection, and compatibility with Schottky freewheeling diodes in non-synchronous topology.
Technical Context
The MIC4723YMME-TR implements voltage-mode PWM control with proprietary type III internal compensation, delivering closed-loop bandwidth exceeding 200kHz. Its architecture integrates a high-side p-channel MOSFET (typ. 200mΩ RDS(on)) and supports discontinuous conduction mode at light loads to improve efficiency.
It features dedicated signal ground (SGND) and power ground (PGND) pins to isolate control circuitry from high-current switching paths, and uses a 1.0V precision feedback reference with ±2% tolerance over temperature. The enable threshold is 0.85V typical with 50mV hysteresis, and PGOOD asserts within ±7.5% of regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3.0V to 5.5V - Enables direct use with 3.3V and 5V system rails without pre-regulation. |
| Output Current | Up to 3A - Sufficient for powering core logic in FPGAs, DSPs, and ASICs. |
| Switching Frequency | 2.0MHz (±10%) - Allows ultra-small external components: 1µH inductor + 4.7µF ceramic output capacitor. |
| Feedback Reference | 1.0V ±2% - Sets output via resistor divider; enables precise 1.2V, 1.5V, 1.8V, 2.5V, 3.3V configurations. |
| Efficiency | Up to 94% - Achieved using low-RDS(on) internal p-MOSFET and optimized gate drive. |
| Duty Cycle Range | 0–100% - Supports dropout conditions where VOUT ≈ VIN, critical for low-VOUT applications. |
| Thermal Protection | Junction shutdown at 160°C with 25°C hysteresis - Prevents damage during sustained overload or poor heatsinking. |
Pinout & Package
The MIC4723YMME-TR is housed in a Pb-free, thermally enhanced 10-pin ePAD MSOP package (3mm × 3mm footprint, 0.8mm height) with exposed thermal pad (EP) connected to GND. This package provides θJA = 76°C/W and θJC = 28°C/W for reliable 3A operation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 10 | VIN | Input supply for p-MOSFET source and driver; requires local 10µF + 0.1µF bypass to PGND. |
| 2, 9 | SW | Switch node connecting to inductor; carries full 3A pulsed current and high dv/dt. |
| 3 | PGND | Power ground return for MOSFET drive current; must be low-inductance, separate from SGND. |
| 4 | SGND | Signal ground for error amplifier, reference, and control logic; isolated from PGND to prevent noise coupling. |
| 5 | BIAS | Bias supply for internal analog circuitry; requires 10Ω series resistor from VIN and 0.1µF to SGND. |
| 6 | FB | Feedback input referenced to 1.0V; connects to resistor divider for output voltage setting. |
| 7 | PGOOD | Open-drain power-good flag; pulled low when VOUT is within ±7.5% of target. |
| 8 | EN | Logic-enable input; device shuts down with IQ < 10µA when pulled low. |
| EP | GND | Exposed thermal pad - must be soldered to PCB GND plane for thermal and electrical performance. |
Key Features
| Feature | Design Value |
|---|---|
| Fully integrated 3A p-channel MOSFET | Eliminates external high-side switch and current-sense resistor, reducing BOM count and layout complexity. |
| 2MHz fixed-frequency PWM | Enables use of miniature 1µH shielded inductors and avoids AM radio band interference. |
| Ultra-fast transient response | Bandwidth >200kHz ensures <1% output deviation during 1A/µs load steps in FPGA core supplies. |
| 100% duty-cycle capability | Permits operation with VIN as low as VOUT + 100mV, essential for low-VOUT systems near input rail limits. |
| Micropower shutdown | Reduces quiescent current to <10µA, supporting battery-backed or always-on standby modes. |
Applications
| FPGA Core Power Supply | DSP Point-of-Load Regulation |
|---|---|
Use Scenario: Delivering 1.2V/2A to Xilinx Spartan-6 FPGA core rail with tight transient requirements. IC Role / Device Role / Timing Role: Primary non-synchronous buck regulator providing regulated DC output; operates at 2MHz to minimize inductor size and EMI. Use Value: Integrated p-MOSFET and internal compensation eliminate loop compensation components, reducing solution footprint by >40% vs discrete controllers. | Use Scenario: Generating 1.8V/1.5A for TI C6000 DSP memory interface under dynamic load conditions. IC Role / Device Role / Timing Role: Adjustable-output step-down converter with fast load-step response and PGOOD monitoring for system sequencing. Use Value: 100% duty cycle and 1.0V FB reference enable accurate low-voltage setting; PGOOD signals host processor when rail is stable. |
| Set-Top Box SoC Supply | Industrial Peripheral Controller |
Use Scenario: Powering 3.3V/2.5A application processor in cable set-top box with thermal constraints. IC Role / Device Role / Timing Role: High-efficiency buck regulator operating from 5V main rail; uses ePAD MSOP for thermal dissipation in confined enclosure. Use Value: 94% peak efficiency minimizes heat generation; thermal shutdown protects against airflow blockage or ambient temperature rise. | Use Scenario: Providing 2.5V/3A to ARM Cortex-M7 microcontroller and peripherals in factory automation controller. IC Role / Device Role / Timing Role: Robust point-of-load regulator with EN-controlled sequencing and –40°C to +125°C junction rating. Use Value: Wide temperature range and integrated protections (OCP, OTP, UVLO) ensure reliability in uncontrolled industrial environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2307DN-LF-Z | 3A, 2MHz synchronous buck; integrated n-channel high-side + p-channel low-side switches; no external diode required. | Higher light-load efficiency due to synchronous rectification; slightly larger solution size due to dual MOSFET drive complexity. | Select MP2307DN-LF-Z when >90% efficiency at 10mA–100mA loads is critical and board space allows for marginally larger layout. |
| TPS54302DDCR | 3A, 2.5MHz synchronous buck; 2.5V–6V input; 0.6V reference; integrated compensation; soft-start programmable. | Wider input range and lower reference enable tighter low-VOUT accuracy; higher frequency allows smaller inductors but increases switching loss at 3A. | Select TPS54302DDCR when design requires 0.6V feedback for sub-1V outputs or programmable soft-start for system-level power sequencing. |
Compared with MP2307DN-LF-Z and TPS54302DDCR, the MIC4723YMME-TR offers simpler non-synchronous implementation with proven stability using minimal external components, making it ideal for cost-sensitive, space-constrained designs where Schottky diode integration is acceptable.
Availability
MIC4723YMME-TR is available at Aetrix Electronics and suitable for FPGA core power, DSP point-of-load regulation, and industrial peripheral controller applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC4723YMME-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
Micrel Inc. was a U.S.-based semiconductor company specializing in power management, analog, and RF solutions before its acquisition by Microchip Technology in 2015.
The MIC4723YMME-TR belongs to Micrel's high-frequency integrated buck regulator product line, designed specifically for compact, efficient point-of-load conversion in FPGA, DSP, and SoC applications where small size and fast transient response are critical.
FAQ
What is the maximum output current supported by the MIC4723YMME-TR?
The MIC4723YMME-TR supports up to 3A of continuous output current under recommended thermal conditions (TJ ≤ 125°C). Peak switch current capability is 5A in PWM mode per datasheet specifications. Actual achievable output current depends on PCB layout, input voltage, output voltage, ambient temperature, and heatsinking - with 3A reliably deliverable using the 10-pin ePAD MSOP package and proper copper area under the EP pad.
Does the MIC4723YMME-TR require an external freewheeling diode?
Yes, the MIC4723YMME-TR is a non-synchronous buck regulator and requires an external Schottky diode connected between SW and PGND. A low-forward-voltage, fast-recovery Schottky diode rated for ≥3A average current and ≥5.5V reverse voltage is recommended to maximize efficiency and reliability. The diode is not integrated, unlike synchronous buck regulators.
What is the feedback reference voltage of the MIC4723YMME-TR?
The MIC4723YMME-TR uses a precision 1.0V feedback reference voltage (VFB) with ±2% tolerance over temperature (–40°C to +125°C). This reference is used with an external resistor divider (R1 from VOUT to FB, R2 from FB to GND) to set the output voltage according to VOUT = 1.0V × (1 + R1/R2). Typical designs use R1 = 10kΩ for optimal noise immunity.
Can the MIC4723YMME-TR operate with a 2.7V input supply?
No - the MIC4723YMME-TR variant is specified for 3.0V to 5.5V input voltage. While the related MIC4723YML variant supports 2.7V–5.5V, the YMME package version has a minimum input of 3.0V per the Ordering Information table and Absolute Maximum Ratings. Operating below 3.0V may result in UVLO activation or unstable regulation.
How is thermal performance managed in the MIC4723YMME-TR's 10-pin ePAD MSOP package?
The MIC4723YMME-TR's 10-pin ePAD MSOP package incorporates an exposed thermal pad (EP) that must be soldered to a PCB GND plane for effective heat dissipation. With θJC = 28°C/W and θJA = 76°C/W, achieving 3A output requires ≥2 cm² of 2-oz copper connected to EP via ≥4 thermal vias. Layout guidelines emphasize separating PGND and SGND traces and minimizing SW node area to reduce EMI and thermal coupling.
MIC4723YMME-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad
- 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):
- 3V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 3A
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP-EP
MIC4723YMME-TR FAQ
1.How can I place an order for MIC4723YMME-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC4723YMME-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 MIC4723YMME-TR reliable?
The price and inventory of MIC4723YMME-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC4723YMME-TR is usually 5 days.
3.What payment methods are accepted for MIC4723YMME-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC4723YMME-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC4723YMME-TR?
MIC4723YMME-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC4723YMME-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 MIC4723YMME-TR?
For technical support, including MIC4723YMME-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC4723YMME-TR requirements.
6.How does Aetrix verify that MIC4723YMME-TR is sourced from the original manufacturer or authorized distributors?
All MIC4723YMME-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 MIC4723YMME-TR meets industry standards.
7.What is the process for return or replacement of MIC4723YMME-TR?
All MIC4723YMME-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC4723YMME-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 MIC4723YMME-TR part is unused and in its original packaging.
Return procedure for MIC4723YMME-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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