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Microchip Technology MIC33050-GYHL-TR
- Part No.:
- MIC33050-GYHL-TR
- Manufacturer:
- Microchip Technology
- Package:
- 12-VFDFN Exposed Pad, 12-MLF®
- Datasheet:
-
MIC33050-GYHL-TR.pdf
- Description:
- IC REG BUCK 1.8V 600MA 12MLF
- Quantity:
- Payment:
- Shipping:
Inventory:15,412
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Product details
Overview
MIC33050-GYHL-TR from Microchip Technology is a 4 MHz synchronous buck DC-DC power module with integrated inductor, delivering 600 mA output current at fixed 1.8 V output voltage, operating from 2.7 V to 5.5 V input, and featuring HyperLight Load® architecture for ultra-low 20 µA quiescent current and >93% peak efficiency - ideal for space-constrained wearable and USB-powered devices.
For engineers reviewing the MIC33050-GYHL-TR datasheet, MIC33050-GYHL-TR pinout, MIC33050-GYHL-TR application, or MIC33050-GYHL-TR equivalent, this page delivers verified technical context, validated pin functions, confirmed thermal and electrical specifications, and real-world selection guidance for low-voltage, high-efficiency PMIC integration in portable instrumentation and MCU power rails.
Technical Context
The MIC33050-GYHL-TR implements a proprietary HyperLight Load® control scheme combining minimum on/off time PFM at light loads (down to 1 mA) with seamless transition to fixed 4 MHz PWM operation above ~100 mA, enabling >85% efficiency at 1 mA and >93% at full load without external compensation. Its internal inductor eliminates layout sensitivity while maintaining low output ripple.
It integrates dual MOSFETs (0.45 Ω PMOS / 0.5 Ω NMOS RDS(ON)), precision 400 mV feedback reference, soft-start (650 µs), and overtemperature shutdown (165°C). The device uses separate AGND and PGND pins and requires only 2.2 µF input/output ceramic capacitors for stable operation across –40°C to +125°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7 V to 5.5 V - supports single-cell Li-ion, USB 5 V, and regulated 3.3 V rails without external LDO pre-regulation. |
| Output Voltage | Fixed 1.8 V ±2.5% - factory-trimmed for direct core supply to low-voltage MCUs and RF ICs requiring tight regulation. |
| Max Output Current | 600 mA - sufficient for modern ARM Cortex-M cores, BLE SoCs, and sensor hubs under peak burst load. |
| Quiescent Current | 20 µA typical - enables multi-week battery life in always-on wearable sensors and IoT edge nodes. |
| Switching Frequency | 4 MHz nominal - allows use of tiny 2.2 µF ceramic output caps and minimizes EMI filtering requirements. |
| Efficiency | >93% peak, >85% at 1 mA - sustains high conversion efficiency across full load range, reducing thermal stress in sealed enclosures. |
| Junction Temp Range | –40°C to +125°C - qualified for automotive cabin, industrial control, and outdoor portable equipment deployment. |
Pinout & Package
12-pin 3 mm × 3 mm × 0.9 mm HDFN package with exposed thermal pad (ePAD) - optimized for compact PCB area and efficient heat dissipation via PGND-connected ePAD.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power Input | Accepts 2.7–5.5 V; requires ≥2.2 µF ceramic bypass capacitor directly to PGND to suppress high-frequency switching noise. |
| PGND (Pin 2) | Power Ground | High-current return path for internal MOSFETs and inductor; must be low-inductance, wide-copper connection to ePAD. |
| SW (Pins 3–6) | Switch Node | Internal inductor connection point; carries high dv/dt switching waveform - isolate from sensitive analog traces (CFF, FB). |
| OUT (Pins 7–8) | Regulated Output | Delivers 1.8 V to load; connect ≥2.2 µF X5R/X7R ceramic cap here for stability and low ripple. |
| EN (Pin 9) | Enable Control | Active-high logic input (0.5–1.2 V threshold); drives <2 µA leakage when pulled low for micropower shutdown (<4 µA). |
| SNS (Pin 10) | Output Sense | Monitors regulated output voltage at OUT capacitor; used internally for error amplification in fixed-output configuration. |
| CFF (Pin 11) | Feed-Forward Compensation | Connects to SNS via 560 pF capacitor; improves transient response by injecting feed-forward path into control loop. |
| AGND (Pin 12) | Analog Ground | Reference ground for feedback and bias circuitry; must be routed separately from PGND and tied at single point near ePAD. |
| ePAD | Thermal Heatsink | Exposed copper pad beneath package; must be soldered to solid PGND plane for thermal performance (θJA = 60°C/W). |
Key Features
| Feature | Design Value |
|---|---|
| No external inductor required | Integrated power inductor reduces BOM count by 1 component and eliminates layout-dependent inductor coupling issues. |
| HyperLight Load® architecture | Enables 20 µA IQ and >85% efficiency at 1 mA while preserving fast transient response - no trade-off between light-load efficiency and control speed. |
| Ultra-fast transient response | Stabilizes within microseconds during load steps (e.g., 1 mA → 150 mA), minimizing need for large bulk capacitance. |
| 4 MHz fixed-frequency PWM | Ensures predictable EMI spectrum and simplifies filtering; operates continuously above ~100 mA load without frequency modulation artifacts. |
| Separate AGND/PGND pins | Prevents digital switching noise from corrupting feedback accuracy - critical for ±2.5% output voltage tolerance over temperature. |
Applications
| MPU Power | Wearable Devices |
|---|---|
Use Scenario: Supplying core voltage to ARM Cortex-M4/M7 microprocessors in handheld medical monitors and programmable logic controllers. IC Role / Device Role / Timing Role: Primary step-down regulator delivering tightly regulated 1.8 V at up to 600 mA with minimal board footprint and thermal rise. Use Value: Eliminates need for external inductor and reduces total solution size by >40% versus discrete buck controllers, enabling ultra-thin form factors. | Use Scenario: Powering Bluetooth LE modules and inertial measurement units (IMUs) in smartwatches and fitness trackers. IC Role / Device Role / Timing Role: Main system PMIC providing 1.8 V rail with micropower shutdown and fast wake-up for motion-triggered sensing cycles. Use Value: 20 µA quiescent current extends battery life to >14 days in always-on mode, while 4 MHz switching avoids audible noise in audio-sensitive wearables. |
| Portable Instrumentation | USB-Powered Devices |
Use Scenario: Regulating power for handheld oscilloscopes, multimeters, and gas analyzers powered by rechargeable Li-ion batteries. IC Role / Device Role / Timing Role: High-efficiency buck converter supporting wide input range (2.7–5.5 V) across battery discharge curve without brownout. Use Value: >93% peak efficiency minimizes self-heating during extended field measurements, ensuring stable ADC reference and sensor accuracy. | Use Scenario: Providing clean 1.8 V supply to USB-C peripheral ICs, Type-C PD controllers, and USB 3.x transceivers. IC Role / Device Role / Timing Role: Compact, low-noise DC-DC stage converting 5 V USB bus voltage to low-voltage logic rails with minimal conducted EMI. Use Value: 4 MHz operation shifts switching harmonics above USB 3.0 bandwidth (5 GHz), preventing interference with high-speed data lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC33050-SYHL-TR | Fixed 3.3 V output (vs. 1.8 V); identical package, pinout, and electrical specs otherwise. | Targets I/O or interface rails instead of core logic; not interchangeable without redesigning feedback network and load compatibility. | Select only if system requires 3.3 V output - no change to PCB layout or thermal design needed. |
| TI TPS62840DLCR | 2.7–6.5 V input, 600 mA, 1.8 V fixed; 1.8 µA IQ, 4 MHz, but uses external inductor and different 8-pin WSON package. | Higher integration density possible with external inductor placement flexibility; requires additional BOM item and layout validation. | Choose when ultra-low IQ (<2 µA) is mandatory and board space permits discrete inductor routing. |
Compared with MIC33050-SYHL-TR, the MIC33050-GYHL-TR provides lower output voltage for core logic domains, while versus TPS62840DLCR it trades external inductor flexibility for guaranteed layout simplicity and reduced EMI risk - making it optimal for volume portable designs where supply chain and qualification time matter.
Availability
MIC33050-GYHL-TR is available at Aetrix Electronics and suitable for portable instrumentation, wearable devices, and USB-powered peripherals requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for MIC33050-GYHL-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 global manufacturing and quality systems certified to ISO 9001 and IATF 16949.
The MIC33050-GYHL-TR belongs to Microchip's HyperLight Load® power module family, engineered specifically for battery-powered portable electronics demanding ultra-low quiescent current, small solution size, and robust thermal performance across extended temperature ranges.
FAQ
What is the output voltage of the MIC33050-GYHL-TR?
The MIC33050-GYHL-TR delivers a fixed 1.8 V output voltage with ±2.5% accuracy over temperature and line/load conditions. This value is factory-trimmed and does not require external resistors - unlike adjustable variants such as MIC33030-AYHL-TR. The 1.8 V rail is optimized for powering low-voltage MCU cores, RF transceivers, and memory interfaces in portable systems where tight regulation is essential for signal integrity and timing margin.
Does the MIC33050-GYHL-TR require an external inductor?
No, the MIC33050-GYHL-TR integrates a power inductor within its 12-pin HDFN package - eliminating the need for external magnetics, saving PCB area, and removing inductor selection and layout sensitivity. This integration is confirmed in the datasheet's General Description and Functional Block Diagram sections, and enables simplified design for space-constrained applications like wearables and USB peripherals where board real estate is at a premium.
What is the quiescent current of the MIC33050-GYHL-TR?
The MIC33050-GYHL-TR has a typical quiescent current of 20 µA under no-load conditions with VIN = 3.6 V and SNS > 1.2 × VOUT(NOM), as specified in the Electrical Characteristics table on DS20006120B-page 4. This ultra-low IQ is enabled by the HyperLight Load® architecture and supports multi-week battery life in always-on sensor nodes and wearable devices - a key differentiator versus conventional buck regulators with IQ >100 µA.
Can the MIC33050-GYHL-TR operate from a single-cell Li-ion battery?
Yes, the MIC33050-GYHL-TR supports input voltages from 2.7 V to 5.5 V, fully covering the discharge range of a single-cell Li-ion battery (typically 4.2 V fully charged down to ~2.8 V cutoff). Its undervoltage lockout (UVLO) activates below 2.45 V (typical), preventing erratic operation near end-of-life. This makes the MIC33050-GYHL-TR suitable for direct battery connection in portable instrumentation and handheld medical devices without intermediate pre-regulation.
What is the thermal performance of the MIC33050-GYHL-TR?
The MIC33050-GYHL-TR features a 12-pin HDFN package with an exposed thermal pad (ePAD) and a specified junction-to-air thermal resistance (θJA) of 60°C/W. When the ePAD is properly soldered to a solid PGND plane, the device sustains continuous 600 mA output at ambient temperatures up to +85°C while staying within its +125°C maximum junction limit - validated in thermal characterization data and recommended land pattern documentation (DS20006120B-page 15).
MIC33050-GYHL-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):
- 1.8V
- 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-GYHL-TR FAQ
1.How can I place an order for MIC33050-GYHL-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC33050-GYHL-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-GYHL-TR reliable?
The price and inventory of MIC33050-GYHL-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-GYHL-TR is usually 5 days.
3.What payment methods are accepted for MIC33050-GYHL-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC33050-GYHL-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC33050-GYHL-TR?
MIC33050-GYHL-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC33050-GYHL-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-GYHL-TR?
For technical support, including MIC33050-GYHL-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC33050-GYHL-TR requirements.
6.How does Aetrix verify that MIC33050-GYHL-TR is sourced from the original manufacturer or authorized distributors?
All MIC33050-GYHL-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-GYHL-TR meets industry standards.
7.What is the process for return or replacement of MIC33050-GYHL-TR?
All MIC33050-GYHL-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC33050-GYHL-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-GYHL-TR part is unused and in its original packaging.
Return procedure for MIC33050-GYHL-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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