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Microchip Technology MIC23650YFT-TR
- Part No.:
- MIC23650YFT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 16-PowerUFQFN
- Datasheet:
-
MIC23650YFT-TR.pdf
- Description:
- IC REG BUCK PROG 6A 16FTQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,612
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Product details
Overview
MIC23650YFT-TR from Microchip Technology is a high-efficiency, 6A peak synchronous step-down DC/DC regulator with Constant-On-Time (COT) control and HyperLight Load™ mode. It operates from 2.4V to 5.5V input, delivers nine factory-programmable output voltages (0.6V–3.3V) via VSEL1/VSEL2 pin strapping, and achieves ±1.5% output voltage accuracy over line/load/temperature. Its 1.2 MHz switching frequency (at 1.0V out), 100% duty cycle capability, and integrated power-good (PG) output make it suitable for FPGA, ASIC, and SSD core power rails.
For engineers reviewing the MIC23650YFT-TR datasheet, MIC23650YFT-TR pinout, MIC23650YFT-TR application, or MIC23650YFT-TR equivalent, key selection considerations include its pin-strapped voltage selection (no external resistors), ultra-fast transient response, output discharge during shutdown, latch-off thermal/current protection, and compatibility with the MIC23656 I²C-programmable variant.
Technical Context
The MIC23650YFT-TR implements adaptive Constant-On-Time control with HyperLight Load™ mode to maintain high efficiency across light-to-heavy loads while delivering ultra-fast load transient response. Its COT architecture dynamically adjusts on-time based on input/output voltage to stabilize switching frequency in continuous conduction mode.
It integrates dual MOSFETs (30 mΩ HS / 16 mΩ LS typical RDS(on)), internal soft-start (0.8 ms/V), pre-biased output start-up support, and open-drain PG with 91% activation threshold and 4% hysteresis. Protection includes latch-off thermal shutdown (+165°C trip), hiccup-mode current limiting, and undervoltage lockout (2.225V UVLO with 153 mV hysteresis).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.4V to 5.5V - supports single-cell Li-ion battery operation with full regulation down to 2.4V. |
| Max Output Current | 6A pulsed - enables powering high-performance FPGA cores and ASIC logic blocks. |
| Output Voltage Options | Nine fixed values (0.6V–3.3V) set by VSEL1/VSEL2 logic states - eliminates feedback resistor network and improves accuracy. |
| Output Voltage Accuracy | ±1.5% over line/load/temperature - ensures stable core voltage under dynamic system conditions. |
| Switching Frequency | 1.2 MHz typical at 1.0V output - allows compact 0.47 µH inductor and reduces EMI filtering burden. |
| Shutdown Current | 1.5 µA typical - extends battery life in portable systems during sleep modes. |
| Thermal Shutdown | +165°C latch-off with +22°C hysteresis - prevents thermal runaway and enables safe recovery after fault clearance. |
| Power Good Threshold | 91% of nominal VOUT with 4% hysteresis - provides reliable sequencing signal for multi-rail systems. |
Pinout & Package
Package: 16-lead 2.5 mm × 2.5 mm × 0.55 mm thin FTQFN with exposed thermal pad (EP), rated for –40°C to +125°C junction temperature and θJA = 45°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | SW | High-current switch node - connects directly to inductor; requires short, wide PCB trace to minimize ringing and losses. |
| 2, 3, 13, 14, 15 | PGND | Power ground return for MOSFETs and bulk capacitors - must be low-inductance, separate from AGND loop. |
| 4, 5 | PVIN | Main power input (2.4V–5.5V) to high-side P-MOSFET source - requires local 22 µF ceramic capacitor to PGND. |
| 6 | SVIN | Analog supply for control circuitry - internally biased via 10 Ω from PVIN; requires 1.0 µF ceramic bypass to AGND. |
| 7 | VSEL2 | Three-state voltage select input - GND/float/VIN sets nine output options with VSEL1; no pull-up/down needed. |
| 8 | VSEL1 | Three-state voltage select input - paired with VSEL2 to configure output without external components. |
| 9 | EN | Active-high enable - logic high >1.2V enables regulation; logic low <0.4V disables with 1.5 µA quiescent current. |
| 10 | PG | Open-drain power-good indicator - asserts high when VOUT ≥91% of target; requires external pull-up for sequencing. |
| 11 | VOUT | Remote sense/discharge node - connects near output capacitor for accurate regulation; discharges VOUT via 10 Ω internal FET when disabled. |
| 12 | AGND | Analog ground reference - ties internal error amplifier and reference; must connect to quiet ground plane near VOUT. |
| 17 | EP | Exposed thermal pad - electrically connected to PGND; requires ≥4 thermal vias to inner ground plane for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Pin-strapped output voltage selection | Nine precise outputs (0.6V–3.3V) set by VSEL1/VSEL2 logic states - eliminates feedback resistors and improves accuracy vs. resistor-divider solutions. |
| HyperLight Load™ mode | Adaptive COT control reduces switching frequency proportionally to load - maintains >85% efficiency at 1 mA while enabling fast wake-up. |
| Output discharge on disable | Internal 10 Ω pull-down between VOUT and PGND - ensures known startup state and prevents back-powering of downstream circuitry. |
| Safe pre-biased start-up | Controlled 8-cycle delay before enabling negative current limit - avoids destructive reverse inductor current when powering into existing rail voltage. |
| Latch-off protection | Thermal and current-limit faults trigger four consecutive hiccup cycles before permanent shutdown - prevents repeated stress during persistent overload. |
| 100% duty cycle operation | High-side MOSFET latched on below dropout threshold - extends usable battery range by regulating down to VOUT + RDS(on)×ILOAD. |
Applications
| FPGA Core Power | SSD Controller Supply |
|---|---|
|
Use Scenario: Powers 1.0V or 1.2V core rails of Xilinx Artix-7 or Intel Cyclone V FPGAs in battery-backed edge compute modules. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering up to 6A peak current with tight voltage tolerance and fast transient response to logic switching events. Use Value: ±1.5% output accuracy and 1.2 MHz switching ensure stable timing margins; VSEL pin strapping simplifies BOM and layout vs. resistor-based solutions. |
Use Scenario: Supplies 1.8V or 3.3V I/O and 1.2V core rails for NVMe SSD controllers in ultraportable laptops and embedded storage. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter supporting rapid burst writes and low-idle power states. Use Value: HyperLight Load™ mode sustains >90% efficiency at 10 mA idle current; PG output coordinates power sequencing with NAND flash and PCIe interface rails. |
| Low-Voltage ASIC Power | Li-ion Portable System Rail |
|
Use Scenario: Delivers 0.9V or 1.0V to custom ASICs in medical imaging sensors and industrial IoT nodes requiring precise analog/digital domain separation. IC Role / Device Role / Timing Role: Precision-regulated DC/DC stage with remote sensing (VOUT pin) and low-noise control loop for mixed-signal integrity. Use Value: AGND/PGND separation and dedicated SVIN supply reduce noise coupling; ±1.5% accuracy ensures ADC reference stability across temperature. |
Use Scenario: Main system rail in handheld test equipment powered by single-cell 3.6V Li-ion, operating down to 2.4V cutoff. IC Role / Device Role / Timing Role: Input-wide buck regulator with 100% duty cycle and low shutdown current to maximize runtime and standby duration. Use Value: 1.5 µA shutdown current extends shelf life; dropout operation maintains regulation until battery reaches end-of-discharge voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC23656YFT-TR | I²C-programmable output (0.6V–3.3V in 10 mV steps) vs. fixed pin-strapped options; same pinout and package. | Requires I²C host and firmware control; better for dynamic voltage scaling or field calibration. | Select MIC23656YFT-TR only if programmability justifies added software complexity and I²C routing overhead. |
| TPS6286418RTER | 3.0A max output, 2.7V–6.0V input, 1.8V fixed output only; no VSEL pins or PG; smaller 1.2 mm × 1.6 mm DSBGA. | Limited to single fixed output; lacks power sequencing and precision accuracy (±2%); suited for space-constrained non-critical rails. | Choose TPS6286418RTER only for cost-sensitive, low-current applications where pin strapping, PG, and ±1.5% accuracy are not required. |
Compared with MIC23650YFT-TR, the MIC23656YFT-TR adds programmability at the cost of firmware dependency, while the TPS6286418RTER trades output flexibility, accuracy, and sequencing capability for size and cost reduction in simpler systems.
Availability
MIC23650YFT-TR is available at Aetrix Electronics and suitable for FPGA core power, SSD controller supply, and low-voltage ASIC applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for MIC23650YFT-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 a focus on reliability, longevity, and embedded system integration.
The MIC23650YFT-TR belongs to Microchip's high-efficiency, pin-configurable DC/DC converter family designed specifically for low-voltage, high-current power delivery in portable and space-constrained computing systems.
FAQ
What output voltages does the MIC23650YFT-TR support?
The MIC23650YFT-TR supports nine precise output voltages: 0.6V, 0.8V, 0.9V, 1.0V, 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. These are selected using the logic states (GND, float, or VIN) of the VSEL1 and VSEL2 pins per Table 4-1 in the datasheet. No external resistors are required, and output accuracy is ±1.5% over line, load, and temperature for each setting.
Does the MIC23650YFT-TR support pre-biased output start-up?
Yes, the MIC23650YFT-TR supports safe start-up into a pre-biased output. It delays PWM activation for eight switching cycles upon enable assertion, preventing destructive reverse inductor current. After this delay, the low-side negative current limit transitions from 0A to –3A. This behavior is confirmed in Section 4.13 of the DS20006098B datasheet and applies directly to the MIC23650YFT-TR.
What is the purpose of the SVIN pin on the MIC23650YFT-TR?
The SVIN pin on the MIC23650YFT-TR supplies power to the internal reference and control circuitry. It is internally connected to PVIN through a 10 Ω resistor and requires a dedicated 1.0 µF ceramic capacitor to AGND. Separating SVIN from PVIN improves noise immunity and regulation stability, especially under high di/dt load transients - a design requirement explicitly stated in Section 3.4 of the datasheet.
How does the MIC23650YFT-TR handle thermal overload?
The MIC23650YFT-TR features latch-off thermal shutdown at +165°C with +22°C hysteresis. If thermal faults occur four times consecutively - such as during persistent overheating or repeated current-limit hiccup events - the device enters a permanent latch-off state. Recovery requires cycling PVIN or toggling EN low-then-high. This behavior is documented in Section 4.12 and confirmed for the MIC23650YFT-TR package variant.
Can the MIC23650YFT-TR operate with 100% duty cycle?
Yes, the MIC23650YFT-TR supports 100% duty cycle operation to maintain regulation during dropout conditions. When input voltage approaches output voltage, the high-side MOSFET latches on once duty cycle reaches ~92%, remaining on until VOUT falls 4% below regulation. This extends usable input range in battery-powered systems and is specified in Section 4.9 of the official datasheet for MIC23650YFT-TR.
MIC23650YFT-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- HyperLight Load®
- Package/Case:
- 16-PowerUFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Programmable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.4V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 3.3V
- Current - Output:
- 6A
- Frequency - Switching:
- 1.1MHz, 1.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-FTQFN (2.5x2.5)
MIC23650YFT-TR FAQ
1.How can I place an order for MIC23650YFT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC23650YFT-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 MIC23650YFT-TR reliable?
The price and inventory of MIC23650YFT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC23650YFT-TR is usually 5 days.
3.What payment methods are accepted for MIC23650YFT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC23650YFT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC23650YFT-TR?
MIC23650YFT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC23650YFT-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 MIC23650YFT-TR?
For technical support, including MIC23650YFT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC23650YFT-TR requirements.
6.How does Aetrix verify that MIC23650YFT-TR is sourced from the original manufacturer or authorized distributors?
All MIC23650YFT-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 MIC23650YFT-TR meets industry standards.
7.What is the process for return or replacement of MIC23650YFT-TR?
All MIC23650YFT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC23650YFT-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 MIC23650YFT-TR part is unused and in its original packaging.
Return procedure for MIC23650YFT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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