My Inquiry
My Account
Microchip Technology MIC23656YFT-TR
- Part No.:
- MIC23656YFT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 16-PowerUFQFN
- Datasheet:
-
MIC23656YFT-TR.pdf
- Description:
- IC REG BUCK PROG 6A 16FTQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,319
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MIC23656YFT-TR from Microchip Technology is a high-efficiency, I²C-programmable 6A peak synchronous step-down regulator with Constant-On-Time (COT) control and HyperLight Load™ mode. It operates from 2.4V–5.5V input, delivers ±1.5% output voltage accuracy over line/load/temperature, supports 0.6V–1.28V output at 5 mV resolution, and features latch-off thermal/current protection. It is used in FPGA core power delivery where precise low-voltage regulation and fast transient response are critical.
For engineers reviewing the MIC23656YFT-TR datasheet, MIC23656YFT-TR pinout, MIC23656YFT-TR application, or MIC23656YFT-TR equivalent, this page provides verified technical context, real-world design meaning of key specs, validated pin functions, confirmed alternative parts with documented differences, and supply-chain support for production ramp-up.
Technical Context
The MIC23656YFT-TR implements adaptive Constant-On-Time (COT) control with HyperLight Load™ mode to maintain ultra-fast transient response while achieving up to 95% efficiency at light loads. Its internal 8-bit DAC enables I²C programming of output voltage (0.6V–1.28V, 5 mV step), slew rate (100–3710 µs/V), switching frequency (via TON<1:0> bits), and high-side current limit (3.5A–10A).
It integrates dual MOSFETs (30 mΩ HS / 16 mΩ LS typical RDS(on)), open-drain Power Good with 91% threshold and 4% hysteresis, and safe start-up into pre-biased outputs. Fault reporting-including overcurrent, overtemperature (165°C latch-off), and undervoltage lockout (2.225V typ)-is communicated via I²C registers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.4V to 5.5V - supports single-cell Li-ion battery operation and wide system rail compatibility. |
| Output Current (Peak) | 6A pulsed - sufficient for FPGA core rails and ASIC logic domains requiring burst-mode load handling. |
| Output Voltage Accuracy | ±1.5% over line/load/temperature - ensures stable core voltage under dynamic load and thermal variation. |
| I²C Interface Speed | Up to 3.4 MHz - enables rapid configuration during boot or runtime voltage scaling without bus contention. |
| Shutdown Supply Current | 1.5 µA typical - minimizes battery drain in always-on subsystems or standby modes. |
| Thermal Shutdown | Latch-off at 165°C with 22°C hysteresis - prevents thermal runaway and enables safe recovery after cooling. |
| Package | 16-pin FTQFN, 2.5 mm × 2.5 mm × 0.55 mm - thermally efficient layout with exposed pad tied to PGND for PCB heat sinking. |
Pinout & Package
The MIC23656YFT-TR is housed in a 16-lead 2.5 mm × 2.5 mm thin FTQFN package with an exposed thermal pad (EP) electrically connected to PGND. Thermal resistance θJA is 45°C/W. Layout requires short, wide SW traces and separate PGND/AGND planes with minimal loop area.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SW (Pins 1, 16) | Switch Node | High-current connection to external inductor; carries full AC ripple and peak switch current-requires low-inductance routing. |
| PGND (Pins 2, 3, 13, 14, 15) | Power Ground | Return path for high-side/low-side MOSFETs and input/output capacitors; must be partitioned from AGND to avoid noise coupling. |
| PVIN (Pins 4, 5) | Main Input Supply | Connects to 2.4V–5.5V source; requires local 10 µF ceramic capacitor placed adjacent to pins for high-frequency decoupling. |
| SVIN (Pin 6) | Analog Input Supply | Powers internal reference/control circuitry; requires dedicated 1.0 µF ceramic cap to AGND; internally biased via 10 Ω from PVIN. |
| SCL / SDA (Pins 7, 8) | I²C Interface | Slave-mode interface (address 0x5B); supports standard/fast/high-speed modes; SDA is open-drain with internal pull-down. |
| EN (Pin 9) | Enable Control | Active-high logic input; programmable delay (0.25–3 ms) prevents inrush; must not float-tie to PVIN or MCU GPIO. |
| PG (Pin 10) | Power Good Output | Open-drain status signal asserting when VOUT ≥ 91% of target; 65 µs blanking prevents false triggers during transients. |
| VOUT (Pin 11) | Remote Sense / Discharge Path | Connects directly to load for accurate feedback; also enables internal 10 Ω discharge resistor when EN = GND (if enabled). |
| AGND (Pin 12) | Analog Ground | Reference for error amplifier and DAC; connect to clean ground plane near output capacitor to minimize sensing error. |
| EP (Pin 17) | Exposed Thermal Pad | Internally tied to PGND; requires ≥4 thermal vias to inner ground layer for effective junction-to-board heat transfer. |
Key Features
| Feature | Design Value |
|---|---|
| I²C Programmability | Full configuration-including output voltage (0.6V–1.28V, 5 mV step), slew rate, ON-time, current limit, and discharge enable-without hardware changes. |
| HyperLight Load™ Mode | Adaptive COT control reduces switching frequency at light loads, maintaining >90% efficiency down to 1 mA while preserving <10 µs transient response. |
| Safe Start-Up | Operates into pre-biased outputs without reverse current or overshoot-critical for multi-rail systems with staggered power sequencing. |
| 100% Duty Cycle Operation | Extends usable input range down to VOUT + dropout (e.g., 0.6V out from 0.7V input), maximizing battery runtime in portable applications. |
| Latch-Off Fault Protection | Immediate shutdown on overtemperature or overcurrent-prevents cumulative stress and enables deterministic system-level fault recovery. |
Applications
| FPGA Core Power | SSD Controller Rail |
|---|---|
|
Use Scenario: Powering Xilinx Artix-7 or Intel Cyclone V FPGA core logic with dynamic current demand up to 5A. IC Role / Device Role / Timing Role: Primary DC/DC converter delivering tightly regulated 0.9V/1.0V core voltage with sub-10 µs load-step response. Use Value: Maintains ±1.5% output accuracy across -40°C to +125°C junction temperature, preventing timing violations during thermal cycling. |
Use Scenario: Supplying NVMe SSD controller ICs requiring stable 1.2V at up to 4A with fast wake-from-sleep response. IC Role / Device Role / Timing Role: High-efficiency buck regulator enabling rapid voltage ramp (programmable slew) during PCIe link training sequences. Use Value: I²C-configurable soft-start and Power Good signaling coordinate with host SoC power sequencing to meet NVMe spec tPS2 timing. |
| Low-Voltage ASIC Bias | Li-ion Portable System Rail |
|
Use Scenario: Generating 0.6V–1.28V bias for custom ASICs in edge AI accelerators with burst-mode compute workloads. IC Role / Device Role / Timing Role: Digitally programmable point-of-load regulator supporting dynamic voltage/frequency scaling (DVFS) via I²C writes. Use Value: 5 mV output resolution and on-the-fly voltage change (with controlled slew) enable precise DVFS steps without firmware reflash. |
Use Scenario: Main system rail in handheld medical devices powered by single-cell 3.0–4.2V Li-ion batteries. IC Role / Device Role / Timing Role: Efficient step-down converter sustaining operation down to 2.4V input while delivering 6A peak for display backlight drivers. Use Value: 100% duty cycle capability extends usable battery capacity by ~12% compared to non-latching buck regulators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC23650YMT-TR | Pin-compatible predecessor; lacks I²C interface and HyperLight Load™; fixed 0.6V/0.9V/1.0V default outputs. | Not suitable for dynamic voltage scaling or remote fault monitoring; limited to static rail configurations. | Select only if I²C control and programmable soft-start are unnecessary and cost is primary constraint. |
| TPS628641RQYR | TI 6A buck with I²C, but uses voltage-mode control; 0.4V–1.95V output range; 1.8V min input; no 100% duty cycle. | Cannot operate from discharged Li-ion (<2.4V); less suitable for ultra-low-input portable systems. | Prefer when higher input voltage (>2.8V) and tighter output ripple (voltage-mode) are prioritized over battery-endurance extension. |
Compared with MIC23650YMT-TR, the MIC23656YFT-TR adds I²C configurability and adaptive light-load efficiency; versus TPS628641RQYR, it offers lower VIN capability and 100% duty cycle-making it uniquely suited for single-cell Li-ion systems demanding both programmability and extended runtime.
Availability
MIC23656YFT-TR is available at Aetrix Electronics and suitable for FPGA core power, SSD controller rails, and low-voltage ASIC bias applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for MIC23656YFT-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 industrial-grade qualification.
The MIC23656YFT-TR belongs to Microchip's high-efficiency, I²C-programmable buck regulator family designed for space-constrained, battery-powered, and FPGA/ASIC power applications demanding precision, speed, and configurability.
FAQ
What is the default output voltage of the MIC23656YFT-TR at power-up?
The MIC23656YFT-TR powers up at 0.6V by default, as specified in the Ordering Information table for the YFT variant. This safe-start voltage allows system initialization before I²C programming to the final operating voltage (e.g., 0.9V or 1.0V). The device retains register settings across EN toggles, so the programmed voltage persists unless overwritten.
Does the MIC23656YFT-TR support operation below 2.4V input?
No-the MIC23656YFT-TR has a hard input voltage limit of 2.4V minimum, enforced by its undervoltage lockout (UVLO) threshold of 2.225V (typical). Below this, the device remains disabled. Its 100% duty cycle capability applies only within the 2.4V–5.5V operating range and does not extend functionality below the UVLO threshold.
Can the MIC23656YFT-TR be configured while disabled (EN = GND)?
Yes-the I²C interface remains fully active even when EN = GND, provided PVIN is above the 2.225V UVLO threshold. This allows housekeeping MCUs to pre-configure output voltage, slew rate, and fault thresholds before enabling power delivery, ensuring glitch-free startup with known parameters.
What is the purpose of the VOUT pin on the MIC23656YFT-TR beyond remote sensing?
In addition to remote voltage sensing for improved regulation accuracy, the VOUT pin serves as the discharge path for the output capacitor when the device is disabled and output discharge is enabled via I²C. An internal 10 Ω resistor connects VOUT to PGND during shutdown, actively pulling the rail to ground within milliseconds-ensuring predictable state transitions.
How does the MIC23656YFT-TR achieve ultra-fast transient response?
The MIC23656YFT-TR uses Constant-On-Time (COT) control with HyperLight Load™ mode, eliminating traditional error amplifier compensation delays. Its adaptive on-time adjustment responds to load steps within one switching cycle, achieving <10 µs recovery time for 1A–6A steps-verified in Figure 2-29 of DS20006112A. This is independent of output capacitance value within the supported 47–1000 µF range.
MIC23656YFT-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):
- 1.28V
- Current - Output:
- 6A
- Frequency - Switching:
- 1.6MHz, 2.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-FTQFN (2.5x2.5)
MIC23656YFT-TR FAQ
1.How can I place an order for MIC23656YFT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC23656YFT-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 MIC23656YFT-TR reliable?
The price and inventory of MIC23656YFT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC23656YFT-TR is usually 5 days.
3.What payment methods are accepted for MIC23656YFT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC23656YFT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC23656YFT-TR?
MIC23656YFT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC23656YFT-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 MIC23656YFT-TR?
For technical support, including MIC23656YFT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC23656YFT-TR requirements.
6.How does Aetrix verify that MIC23656YFT-TR is sourced from the original manufacturer or authorized distributors?
All MIC23656YFT-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 MIC23656YFT-TR meets industry standards.
7.What is the process for return or replacement of MIC23656YFT-TR?
All MIC23656YFT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC23656YFT-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 MIC23656YFT-TR part is unused and in its original packaging.
Return procedure for MIC23656YFT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC23656YFT-TR Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
