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Microchip Technology MIC33M656-HAYMP-TR
- Part No.:
- MIC33M656-HAYMP-TR
- Manufacturer:
- Microchip Technology
- Package:
- 53-PowerBFQFN Module
- Datasheet:
-
MIC33M656-HAYMP-TR.pdf
- Description:
- IC REG BUCK PROG 6A 53B1QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,170
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Product details
Overview
MIC33M656-HAYMP-TR from Microchip Technology is an I²C-programmable, 6A synchronous buck power module with integrated inductor, operating from 2.4V to 5.5V input and delivering 0.6V–1.28V output at ±1.5% accuracy. It features HyperLight Load® mode for >95% peak efficiency, latch-off thermal/current protection, and Power Good open-drain output. Used in FPGA, ASIC, and SSD core power rails requiring fast transient response and precise voltage sequencing.
For engineers reviewing the MIC33M656-HAYMP-TR datasheet, MIC33M656-HAYMP-TR pinout, MIC33M656-HAYMP-TR application, or MIC33M656-HAYMP-TR equivalent, this page delivers verified technical context, validated pin functions, confirmed I²C programmability (0.6V–1.28V @ 5 mV step), thermal shutdown behavior (165°C latch-off), and real-world design meaning for high-density low-voltage power delivery.
Technical Context
The MIC33M656-HAYMP-TR implements Constant-On-Time (COT) control with adaptive on-time adjustment to maintain near-constant switching frequency in CCM while enabling ultra-fast load transients. Its HyperLight Load® mode dynamically reduces switching frequency at light loads using low-side MOSFET diode emulation, minimizing drive and switching losses.
I²C interface (up to 3.4 MHz) provides full configuration of output voltage, slew rate (100–3710 µs/V), high-side current limit (3.5A–10A), enable delay (0.2–3 ms), and output discharge. Default power-up voltage is 1.0V, with safe start-up into pre-biased outputs and 100% duty-cycle low-dropout operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.4V–5.5V - supports single-cell Li-ion battery systems and USB-powered applications without external LDO pre-regulation. |
| Output Current | 6A continuous - sufficient for FPGA core rails and multi-core ASICs with dynamic current demands. |
| Output Voltage Accuracy | ±1.5% over line/load/temperature - ensures reliable logic-level compliance for 0.8V–1.2V VDD domains. |
| I²C Resolution | 5 mV step from 0.6V–1.28V - enables fine-grained margining and adaptive voltage scaling (AVS) in performance-critical systems. |
| Thermal Protection | Latch-off at 165°C with 22°C hysteresis - prevents thermal runaway during sustained overload or poor PCB heatsinking. |
| Shutdown Current | 1.5 µA typical - extends battery life in always-on subsystems and enables low-power sleep states. |
| EMI Compliance | Meets CISPR32 Class B radiated emissions - reduces need for external EMI filters in compact consumer and industrial enclosures. |
Pinout & Package
Package: 53-lead, 6 mm × 10 mm × 3 mm B1QFN with exposed thermal pads (EP_OUT, EP_SW, EP_PGND, EP_PVIN) for enhanced thermal dissipation in high-current applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND (Pins 2,3,4,5,23,24,39,40) | Power Ground Return Path | Low-impedance return for high-frequency switch-node current; must be routed separately from AGND to avoid noise coupling into control circuitry. |
| SW (Pins 6–22) | Switch Node Connection | High-dV/dt node connecting internal HS/LS MOSFETs and inductor; requires short, wide traces to minimize EMI and voltage ringing. |
| PVIN (Pins 41,42) | Main Input Power Supply | Primary 2.4V–5.5V input path for power stage; requires local 47 µF ceramic capacitor placed adjacent to pins. |
| OUT (Pins 25–38) | Regulated Output Terminal | Delivers 6A output; multiple parallel pins reduce IR drop and improve current sharing across PCB copper planes. |
| SCL / SDA (Pins 45,48) | I²C Interface Signals | Enable runtime reconfiguration without power cycle; support up to 3.4 MHz High-Speed mode for fast register writes during boot. |
| EN (Pin 49) | Enable Control Input | Logic-high active; supports programmable 0.2–3 ms startup delay to coordinate power sequencing with other rails. |
| PG (Pin 50) | Open-Drain Power Good | Signals valid regulation (≥91% VOUT); used to enable downstream regulators or assert system reset when VOUT falls below 87% threshold. |
| VOUT (Pin 51) | Remote Output Sense | Enables Kelvin sensing for accurate regulation under PCB trace resistance; also activates 10 Ω internal pull-down when EN = GND. |
Key Features
| Feature | Design Value |
|---|---|
| I²C Programmable Output Voltage | 0.6V–1.28V in 5 mV steps - allows dynamic voltage scaling for power/performance optimization in FPGAs and SoCs. |
| HyperLight Load® Mode | Ultra-low quiescent current with automatic transition to PFM at light loads - maintains >85% efficiency down to 1 mA output. |
| Safe Start-up into Pre-Biased Output | Prevents reverse current flow when powering into existing bus voltage - eliminates risk of damaging downstream components during hot-swap or multi-rail sequencing. |
| Latch-Off Fault Protection | Thermal and overcurrent faults trigger irreversible shutdown until power cycle - ensures system safety during sustained overload or short-circuit conditions. |
| Integrated Inductor & Decoupling | Reduces external component count by 7+ passive devices - simplifies layout, improves reliability, and shrinks footprint vs. discrete buck solutions. |
Applications
| FPGA Core Power | SSD Controller Rail |
|---|---|
Use Scenario: Powering Xilinx Artix-7 or Intel Cyclone V FPGA core logic with dynamic current ranging from 0.5A to 6A during configuration and computation. IC Role / Device Role / Timing Role: Primary 1.0V core regulator with I²C-controlled voltage margining and sequencing coordination via PG signal. Use Value: ±1.5% output accuracy and ultra-fast transient response (<100 µs recovery) prevent timing violations during burst-mode processing. |
Use Scenario: Delivering stable 1.2V supply to NVMe SSD controller ICs under rapid load changes during read/write bursts. IC Role / Device Role / Timing Role: High-current, low-noise DC/DC converter with HyperLight Load® mode enabling <10 µA idle current during NAND flash standby. Use Value: Meets CISPR32 Class B emissions without added ferrite beads, reducing BOM cost and board space in M.2 form factor designs. |
| ASIC Low-Voltage Domain | Portable System PMIC Sub-Rail |
Use Scenario: Supplying 0.85V to ARM-based application processors in handheld medical devices with strict battery life requirements. IC Role / Device Role / Timing Role: Secondary regulated rail configured via host MCU I²C before processor boot to ensure correct VDD level prior to clock enable. Use Value: 1.5 µA shutdown current and 100% duty-cycle operation extend usable battery time between charges by >12% vs. non-latch buck modules. |
Use Scenario: Providing configurable 0.6V–1.28V output in wearable electronics where firmware dynamically adjusts voltage per sensor activity state. IC Role / Device Role / Timing Role: Digitally programmable power stage supporting adaptive voltage scaling (AVS) with on-the-fly slew-rate control (100–3710 µs/V). Use Value: I²C accessibility during EN = low enables pre-configuration by system MCU, eliminating boot-time voltage glitches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-current, I²C-programmable buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MPM3695-100 from Monolithic Power Systems | 6A output, 2.7–16V input, no integrated inductor, 0.6–5.5V output, I²C interface, but lacks latch-off thermal protection and pre-biased start-up. | Requires external inductor and additional EMI filtering; suitable for higher-input systems but not direct replacement in 2.4–5.5V battery-powered designs. | Select when input voltage exceeds 5.5V or when board-level inductor selection is preferred for thermal tuning. |
| TPS62097 from Texas Instruments | 3A output, 2.5–6V input, 0.6–1.8V output, I²C programmable, but no integrated inductor, lower current rating, and no latch-off fault mode. | Not suitable for 6A FPGA/ASIC loads; limited to sub-3A applications like microcontrollers or memory interfaces. | Choose only for space-constrained 3A applications where external inductor integration is acceptable and latch-off safety is not required. |
Compared with MPM3695-100 and TPS62097, the MIC33M656-HAYMP-TR uniquely combines 6A capability, integrated inductor, latch-off protection, and pre-biased start-up in a 2.4–5.5V input range-making it the only option qualified for robust, compact, battery-fed high-performance digital power rails.
Availability
MIC33M656-HAYMP-TR is available at Aetrix Electronics and suitable for FPGA core power, SSD controller rails, and portable ASIC applications requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for MIC33M656-HAYMP-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 U.S.-based semiconductor company specializing in microcontrollers, analog devices, and power management ICs, with emphasis on reliability, longevity, and industrial-grade qualification.
The MIC33M656 product line delivers fully integrated, I²C-configurable power modules targeting high-density computing applications-including FPGAs, ASICs, and SSDs-where minimal external components, precise voltage control, and robust fault handling are critical.
FAQ
What is the default output voltage of the MIC33M656-HAYMP-TR at power-up?
The MIC33M656-HAYMP-TR powers up at 1.0V by default, as specified in its ordering code "HAYMP" (H = 1.0V). This safe-start voltage ensures compatibility with common FPGA and ASIC core domains before I²C reprogramming. The device retains register settings-including output voltage-even when EN is pulled low, allowing host MCU pre-configuration prior to enable.
Does the MIC33M656-HAYMP-TR support remote voltage sensing?
Yes, the MIC33M656-HAYMP-TR includes a dedicated VOUT pin (Pin 51) for Kelvin sensing. This pin connects directly to the output capacitor's positive terminal to compensate for PCB trace IR drop, maintaining ±1.5% regulation accuracy under high-current load conditions. It also activates the internal 10 Ω output discharge path when EN = GND.
Can the MIC33M656-HAYMP-TR be programmed while disabled?
Yes, the MIC33M656-HAYMP-TR accepts I²C commands regardless of EN pin state, provided PVIN remains above the 2.225V UVLO threshold. This allows a system MCU to configure output voltage, slew rate, and fault thresholds before asserting EN-enabling glitch-free power delivery and eliminating boot-time voltage transients.
What thermal protection mechanisms does the MIC33M656-HAYMP-TR implement?
The MIC33M656-HAYMP-TR features latch-off thermal shutdown at 165°C (with 22°C hysteresis) and thermal warning at 118°C. Unlike auto-retry thermal foldback, the latch-off mode holds shutdown until power is cycled-preventing uncontrolled restarts during persistent overheating. This behavior is confirmed in DS20006256A, Section 9.1.
Is the MIC33M656-HAYMP-TR pin-compatible with other members of the MIC33M65x family?
Yes, the MIC33M656-HAYMP-TR shares identical 53-pin B1QFN packaging and pinout with the MIC33M650, enabling drop-in replacement in existing layouts. Pin mapping-including PGND, SW, PVIN, OUT, SCL, SDA, EN, PG, and VOUT-is functionally identical across the family, simplifying migration to higher-current variants without PCB redesign.
MIC33M656-HAYMP-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- HyperLight Load®
- Package/Case:
- 53-PowerBFQFN Module
- 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:
- 53-B1QFN (6x10)
MIC33M656-HAYMP-TR FAQ
1.How can I place an order for MIC33M656-HAYMP-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC33M656-HAYMP-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 MIC33M656-HAYMP-TR reliable?
The price and inventory of MIC33M656-HAYMP-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC33M656-HAYMP-TR is usually 5 days.
3.What payment methods are accepted for MIC33M656-HAYMP-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC33M656-HAYMP-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC33M656-HAYMP-TR?
MIC33M656-HAYMP-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC33M656-HAYMP-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 MIC33M656-HAYMP-TR?
For technical support, including MIC33M656-HAYMP-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC33M656-HAYMP-TR requirements.
6.How does Aetrix verify that MIC33M656-HAYMP-TR is sourced from the original manufacturer or authorized distributors?
All MIC33M656-HAYMP-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 MIC33M656-HAYMP-TR meets industry standards.
7.What is the process for return or replacement of MIC33M656-HAYMP-TR?
All MIC33M656-HAYMP-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC33M656-HAYMP-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 MIC33M656-HAYMP-TR part is unused and in its original packaging.
Return procedure for MIC33M656-HAYMP-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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