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Microchip Technology MIC33050-SYHL-TR
- Part No.:
- MIC33050-SYHL-TR
- Manufacturer:
- Microchip Technology
- Package:
- 12-VFDFN Exposed Pad, 12-MLF®
- Datasheet:
-
MIC33050-SYHL-TR.pdf
- Description:
- IC REG BUCK 3.3V 600MA 12MLF
- Quantity:
- Payment:
- Shipping:
Inventory:5,709
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Product details
Overview
MIC33050-SYHL-TR from Microchip Technology is a 4 MHz synchronous buck DC-DC power module with integrated inductor, delivering 600 mA output current at a fixed 3.3 V output voltage. It operates from 2.7 V to 5.5 V input, features HyperLight Load® architecture for ultra-low 20 µA quiescent current and >85% efficiency at 1 mA, and targets space-constrained MPU and RF module power rails.
For engineers reviewing the MIC33050-SYHL-TR datasheet, MIC33050-SYHL-TR pinout, MIC33050-SYHL-TR application, or MIC33050-SYHL-TR equivalent, this page delivers verified electrical parameters, thermal performance limits, package layout guidance, and real-world design trade-offs for portable instrumentation, wearable devices, and USB-powered systems requiring stable low-noise 3.3 V regulation.
Technical Context
The MIC33050-SYHL-TR implements a proprietary HyperLight Load® control scheme combining minimum on/off time PFM at light loads (≤100 mA) and fixed-frequency 4 MHz PWM in continuous conduction mode above ~150 mA. Its internal PMOS/NMOS synchronous switch pair achieves RDS(ON) of 0.45 Ω / 0.5 Ω, enabling high efficiency across load range without external inductor.
It integrates feedback sensing (SNS), feed-forward compensation (CFF), and analog ground (AGND) separation to maintain ±2.5% output voltage accuracy over –40°C to +125°C junction temperature, while its 12-pin 3 mm × 3 mm HDFN package uses an exposed ePAD for thermal management with θJA = 60°C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V - eliminates external resistor divider; enables single-component 3.3 V rail for MCU I/O or RF biasing. |
| Input Voltage Range | 2.7 V to 5.5 V - supports direct Li-ion battery (3.0–4.2 V), USB 5 V, or regulated 3.3 V supply inputs. |
| Max Output Current | 600 mA - sufficient for ARM Cortex-M7 MPU cores, BLE/Wi-Fi modules, or dual-core sensor hubs. |
| Quiescent Current | 20 µA typical - extends battery life in always-on wearables; maintains regulation during deep sleep modes. |
| Switching Frequency | 4 MHz nominal - enables use of small 2.2 µF ceramic output capacitors and reduces EMI filter size. |
| Efficiency @ 1 mA | >85% - minimizes standby power loss in USB-powered peripherals with intermittent activity. |
| Junction Temp Range | –40°C to +125°C - qualified for automotive cabin, industrial edge nodes, and outdoor IoT deployments. |
| Package | 12-pin 3 mm × 3 mm HDFN with ePAD - surface-mount footprint compatible with automated assembly; thermal pad must be soldered to PGND. |
Pinout & Package
12-pin 3 mm × 3 mm HDFN package with exposed thermal pad (ePAD) requiring connection to PGND for optimal thermal performance and EMI suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power Input | Accepts 2.7–5.5 V; requires ≥2.2 µF X5R/X7R ceramic bypass capacitor placed adjacent to PGND. |
| PGND (Pin 2) | Power Ground Return | High-current return path for MOSFET switching; must be routed separately from AGND to avoid noise coupling. |
| SW (Pins 3–6) | Internal Switch Node | Connects directly to internal inductor; high di/dt node-keep trace short and away from SNS/CFF/FB. |
| OUT (Pins 7–8) | Regulated Output | Delivers fixed 3.3 V; connects to ≥2.2 µF output capacitor; voltage ripple <10 mVPP at full load. |
| EN (Pin 9) | Enable Control | Active-high logic input; 0.8 V threshold; drives device into micropower shutdown (<4 µA) when low. |
| SNS (Pin 10) | Output Sense | Monitors OUT voltage at capacitor positive terminal; used for closed-loop regulation in fixed-output variant. |
| CFF (Pin 11) | Feed-Forward Compensation | Connects to SNS via 560 pF capacitor; improves transient response by injecting high-frequency error signal. |
| AGND (Pin 12) | Analog Reference Ground | Reference for internal error amplifier and reference; must tie to system AGND, not PGND, to prevent noise injection. |
| ePAD | Thermal Heatsink | Exposed copper pad under package; must be soldered to large PGND copper area for θJA = 60°C/W. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Inductor | Eliminates external magnetics, reducing BOM count and PCB area by >30% versus discrete buck solutions. |
| HyperLight Load® Mode | Enables PFM operation below 100 mA while maintaining fast transient response-no trade-off between light-load efficiency and control bandwidth. |
| 4 MHz Fixed PWM | Permits use of compact 2.2 µF ceramic output capacitors and simplifies EMI filtering vs. sub-MHz converters. |
| ±2.5% Output Accuracy | Guaranteed over full temperature and line/load range-meets tight tolerance requirements for MCU core and interface I/O rails. |
| Undervoltage Lockout | 2.55 V turn-on threshold with 100 mV hysteresis prevents erratic startup during brown-out conditions. |
| Overtemperature Shutdown | 165°C trip point with 20°C hysteresis protects against thermal runaway in sealed enclosures or high ambient environments. |
Applications
| MPU Power | Wearable Devices |
|---|---|
Use Scenario: Powering ARM Cortex-M4/M7 microprocessor cores and peripheral I/O banks in handheld medical monitors. IC Role / Device Role / Timing Role: Primary 3.3 V step-down regulator supplying processor VDD_IO and communication interfaces (SPI, UART, I²C). Use Value: Delivers 600 mA peak current with <10 mV output ripple and 20 µA quiescent current-enabling 7-day battery life in sleep mode and stable operation during burst processing. |
Use Scenario: Regulating power for Bluetooth LE sensor nodes embedded in smart wristbands with constrained 12 mm × 12 mm PCB area. IC Role / Device Role / Timing Role: Single-chip 3.3 V power solution replacing discrete buck IC + inductor + compensation network. Use Value: Reduces total solution size by 45% and eliminates inductor selection/EMI tuning-accelerating wearable certification cycles. |
| RF Modules | USB-Powered Devices |
Use Scenario: Supplying clean 3.3 V bias to 2.4 GHz Wi-Fi/BLE transceivers (e.g., ESP32, nRF52840) in IoT gateways. IC Role / Device Role / Timing Role: Low-noise DC-DC converter with 4 MHz switching-minimizing beat frequencies near RF bands and easing conducted EMI compliance. Use Value: Achieves >93% peak efficiency and <10 mVPP ripple-reducing thermal load on RF front-end and preventing receiver desensitization. |
Use Scenario: Power conversion for USB-C powered portable test equipment drawing up to 500 mA from 5 V bus. IC Role / Device Role / Timing Role: Step-down regulator converting 5 V USB input to stable 3.3 V for FPGA configuration, ADC reference, and digital logic. Use Value: Maintains >85% efficiency at 1 mA standby and >90% at 200 mA-extending runtime and eliminating need for heatsinking in plastic enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC33030-AYHL-TR | Adjustable output (via FB resistor divider); same 4 MHz, 600 mA, HyperLight Load® architecture and 12-pin HDFN package. | Requires two external resistors to set output; supports custom voltages (1.0–3.3 V), but adds BOM cost and layout area. | Select when 3.3 V is insufficient-e.g., powering 1.8 V or 2.5 V logic domains-or when future voltage flexibility is required. |
| TI TPS62840DLCR | 600 mA, 1.8–5.5 V input, 0.6–3.3 V adjustable output; 1.8 µA IQ; 4 MHz; 1.5 mm × 2.0 mm DSBGA package. | Smaller footprint and lower IQ, but no fixed 3.3 V option-requires resistor programming-and lacks integrated inductor (external coil needed). | Choose for ultra-low-power coin-cell applications where size and IQ dominate, accepting added inductor design complexity. |
Compared with MIC33030-AYHL-TR, MIC33050-SYHL-TR saves board space and BOM count via fixed 3.3 V output; versus TPS62840DLCR, it trades slightly higher IQ for full integration and simplified layout-making it optimal for production-ready 3.3 V rails where reliability and time-to-market matter most.
Availability
MIC33050-SYHL-TR is available at Aetrix Electronics and suitable for MPU power, wearable devices, and RF modules requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.
Supply support for MIC33050-SYHL-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, FPGAs, and power management ICs, with emphasis on embedded control and industrial reliability.
The MIC33050 product line delivers fully integrated, high-efficiency DC-DC power modules targeting space- and power-constrained applications such as portable instrumentation, wearables, and USB-powered edge devices.
FAQ
What is the output voltage of the MIC33050-SYHL-TR?
The MIC33050-SYHL-TR provides a fixed 3.3 V output voltage, as indicated by the "S" in its part number per Microchip's identification system. This eliminates the need for external feedback resistors and ensures ±2.5% accuracy over –40°C to +125°C junction temperature, making it ideal for powering MCU I/O, sensors, and RF modules requiring stable 3.3 V rails.
Does the MIC33050-SYHL-TR require an external inductor?
No, the MIC33050-SYHL-TR integrates the power inductor internally, confirmed in the General Description and Features sections of DS20006120B. This allows a complete 3.3 V buck solution with only input/output capacitors and optional feed-forward capacitor-reducing solution size and eliminating inductor selection, placement, and EMI tuning effort.
What is the maximum operating junction temperature for the MIC33050-SYHL-TR?
The MIC33050-SYHL-TR has a specified operating junction temperature range of –40°C to +125°C, explicitly stated in the "Temperature Specifications" table (page 5) and reinforced in the Product Identification System (page 19). Its thermal resistance θJA is 60°C/W, and overtemperature shutdown activates at 165°C with 20°C hysteresis to ensure safe operation under sustained load.
How does the HyperLight Load® feature improve light-load efficiency in the MIC33050-SYHL-TR?
The HyperLight Load® architecture in the MIC33050-SYHL-TR uses a minimum on/off time PFM scheme that maintains fast transient response while achieving >85% efficiency at 1 mA-without sacrificing control speed. Unlike traditional PFM modes, it avoids slow recovery from deep sleep, enabling rapid load steps from 1 mA to 150 mA with minimal overshoot, as shown in Figure 2-20 of DS20006120B.
What package type and pin count does the MIC33050-SYHL-TR use?
The MIC33050-SYHL-TR uses a 12-pin 3 mm × 3 mm HDFN (Hybrid Dual Flat No-lead) package with an exposed thermal pad (ePAD), documented in the "Package Types" section (page 1) and "Packaging Information" (pages 14–15). Pin assignments-including VIN, PGND, SW, OUT, EN, SNS, CFF, FB (not used in fixed version), and AGND-are fully detailed in Table 3-1 (page 9) of the datasheet.
MIC33050-SYHL-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- HyperLight Load®
- Package/Case:
- 12-VFDFN Exposed Pad, 12-MLF®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 600mA
- Frequency - Switching:
- 4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-MLF™ (3x3)
MIC33050-SYHL-TR FAQ
1.How can I place an order for MIC33050-SYHL-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC33050-SYHL-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 MIC33050-SYHL-TR reliable?
The price and inventory of MIC33050-SYHL-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC33050-SYHL-TR is usually 5 days.
3.What payment methods are accepted for MIC33050-SYHL-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC33050-SYHL-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC33050-SYHL-TR?
MIC33050-SYHL-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC33050-SYHL-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 MIC33050-SYHL-TR?
For technical support, including MIC33050-SYHL-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC33050-SYHL-TR requirements.
6.How does Aetrix verify that MIC33050-SYHL-TR is sourced from the original manufacturer or authorized distributors?
All MIC33050-SYHL-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 MIC33050-SYHL-TR meets industry standards.
7.What is the process for return or replacement of MIC33050-SYHL-TR?
All MIC33050-SYHL-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC33050-SYHL-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 MIC33050-SYHL-TR part is unused and in its original packaging.
Return procedure for MIC33050-SYHL-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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