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Microchip Technology MIC33050-CYHL-TR
- Part No.:
- MIC33050-CYHL-TR
- Manufacturer:
- Microchip Technology
- Package:
- 12-VFDFN Exposed Pad, 12-MLF®
- Datasheet:
-
MIC33050-CYHL-TR.pdf
- Description:
- IC REG BUCK 1V 600MA 12MLF
- Quantity:
- Payment:
- Shipping:
Inventory:4,417
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Product details
Overview
MIC33050-CYHL-TR from Microchip Technology is a 4 MHz synchronous buck DC-DC power module with integrated inductor, delivering 600 mA output current at fixed 1.0 V output voltage, operating from 2.7 V to 5.5 V input, and featuring HyperLight Load® architecture for ultra-low quiescent current (20 µA) and fast transient response-designed for space-constrained MPU and wearable power rails.
For engineers reviewing the MIC33050-CYHL-TR datasheet, MIC33050-CYHL-TR pinout, MIC33050-CYHL-TR application, or MIC33050-CYHL-TR equivalent, this page delivers verified technical context, package mapping, real-world load regulation performance (±0.3%), feedback voltage accuracy (400 mV ±2.5%), and validated alternatives for low-voltage, high-efficiency portable power design.
Technical Context
The MIC33050-CYHL-TR implements a proprietary HyperLight Load® control scheme combining minimum on/off time PFM at light loads (<100 mA) and seamless transition to fixed 4 MHz PWM operation in continuous conduction mode above ~150 mA, enabling >85% efficiency at 1 mA and >93% peak efficiency. Its internal PMOS/NMOS synchronous switch pair features RDS(ON) of 0.45 Ω (high-side) and 0.5 Ω (low-side), optimized for low dropout and minimal switching loss.
It integrates a 400 mV internal reference and supports fixed-output configuration via internal resistor divider (no external FB network required), with dedicated SNS and CFF pins enabling precise output voltage sensing and feed-forward compensation-critical for maintaining <1% output voltage deviation across –40°C to +125°C junction temperature range and 2.7–5.5 V input variation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.0 V ±2.5% - ensures stable core supply for low-voltage MPUs without external feedback resistors. |
| Input Voltage Range | 2.7 V to 5.5 V - compatible with single-cell Li-ion, USB 5 V, and regulated 3.3 V rails. |
| Max Output Current | 600 mA - sufficient for modern ARM Cortex-M7/M8 cores and RF transceivers in compact wearables. |
| Quiescent Current | 20 µA typical - extends battery life in always-on sensor nodes and BLE peripherals. |
| Switching Frequency | 4 MHz nominal - enables use of tiny 2.2 µF ceramic output capacitors and reduces EMI filter size. |
| Efficiency @ 1 mA | >85% - maintains usable runtime even during deep sleep modes in IoT endpoints. |
| Junction Temp Range | –40°C to +125°C - qualified for automotive cabin and industrial edge computing environments. |
| Package | 12-pin 3 mm × 3 mm HDFN - thermally enhanced with exposed ePAD for PCB-level heat dissipation. |
Pinout & Package
12-pin 3 mm × 3 mm HDFN package with exposed thermal pad (ePAD) connected to PGND for optimal thermal performance. Pin numbering follows standard top-view orientation with pin 1 marked by dot/delta.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power Input | Accepts 2.7–5.5 V supply; requires ≥2.2 µF ceramic bypass capacitor close to PGND to suppress high-frequency noise. |
| PGND (Pin 2) | Power Ground | High-current return path for MOSFET switches; must be routed separately from AGND to avoid ground bounce. |
| SW (Pins 3–6) | Switch Node | Internal inductor connection point; carries high di/dt switching current-keep trace short and away from sensitive analog nodes. |
| OUT (Pins 7–8) | Regulated Output | Delivers fixed 1.0 V; connects directly to 2.2 µF+ output capacitor-ripple <10 mVPP at full load. |
| EN (Pin 9) | Enable Control | Active-high logic input (0.8 V threshold); enables soft-start and micropower shutdown (<4 µA). |
| SNS (Pin 10) | Voltage Sense | Monitors regulated output at OUT capacitor; used internally for error amplification in fixed-output mode. |
| CFF (Pin 11) | Feed-Forward Compensation | Connects to SNS via 560 pF capacitor; improves transient response by injecting derivative gain into control loop. |
| AGND (Pin 12) | Analog Ground | Reference for internal error amplifier and reference circuitry; must be tied to PGND only at single point near ePAD. |
| ePAD | Thermal Heatsink | Exposed copper pad beneath package; soldered to large PGND copper area for θJA = 60°C/W thermal resistance. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Inductor | Eliminates external inductor selection, layout sensitivity, and EMI shielding-reduces BOM count by 1 component and saves >20 mm² PCB area. |
| HyperLight Load® Architecture | Delivers >85% efficiency at 1 mA while maintaining <10 µs load-step response-enables true "zero-power" sleep states in battery-powered devices. |
| 4 MHz Fixed-Frequency PWM | Enables use of small 2.2 µF X5R/X7R ceramic output capacitors instead of larger tantalum or polymer types-improves reliability and reduces footprint. |
| Ultra-Low Quiescent Current | 20 µA typical operating current minimizes standby power loss-critical for multi-year battery life in wireless sensors and medical patches. |
| –40°C to +125°C Operation | Validated over full automotive-grade junction temperature range-supports under-hood, industrial motor control, and outdoor edge node deployments. |
| Internal 400 mV Reference | Ensures ±2.5% output accuracy without external resistor tolerance drift-maintains MPU core voltage stability across temperature and aging. |
Applications
| MPU Core Power | Wearable Sensor Hub |
|---|---|
Use Scenario: Powering ARM Cortex-M7 core in a compact fitness tracker requiring 1.0 V @ 400 mA with <50 µs wake-from-sleep response. IC Role / Device Role / Timing Role: Primary step-down regulator supplying MPU VDDCORE rail with integrated inductor and HyperLight Load® for dynamic voltage scaling. Use Value: Eliminates need for external inductor and reduces total solution size to <12 mm²-enabling sub-20 mm × 20 mm PCB form factor. |
Use Scenario: Providing regulated 1.0 V supply to an optical heart-rate sensor ASIC and BLE radio in a wrist-worn device. IC Role / Device Role / Timing Role: Single-chip power solution delivering stable 1.0 V with <10 mV ripple and <20 µA quiescent current during motion-sensing idle cycles. Use Value: Extends coin-cell battery life beyond 12 months by maintaining >85% efficiency at 100 µA load and enabling rapid 1.0 V rail stabilization upon motion detection. |
| USB-Powered Diagnostic Tool | Space-Constrained MCU System |
Use Scenario: Compact handheld diagnostic dongle powered directly from USB 5 V port, requiring clean 1.0 V for precision ADC reference and microcontroller core. IC Role / Device Role / Timing Role: Buck converter with integrated inductor and 4 MHz switching-minimizing conducted EMI near sensitive analog front-end circuits. Use Value: Achieves <10 mVPP output ripple and >90% efficiency at 300 mA-ensuring 16-bit ADC accuracy without external LDO post-regulation. |
Use Scenario: Ultra-thin smart lock PCB with strict height limit (<1.2 mm), needing 1.0 V for secure element and low-power MCU. IC Role / Device Role / Timing Role: High-density power module with 3 mm × 3 mm footprint and 0.9 mm profile-compatible with 1.0 mm board thickness constraints. Use Value: Reduces total power solution height by 40% versus discrete buck + inductor, while maintaining thermal rise <15°C at full load on 2-layer FR4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-output buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC33050-4YHL-TR | Fixed 1.2 V output; identical package, pinout, and HyperLight Load® architecture. | Requires system-level voltage margin adjustment-suitable where 1.2 V is acceptable for newer LPDDR interfaces. | Select when target SoC specifies 1.2 V core voltage and board layout allows minor VOUT change without redesign. |
| TI TPS6208818RTER | 1.8 V fixed output; 2 A capability; 2.5–5.5 V input; no integrated inductor; 2.0 mm × 2.0 mm QFN. | Lacks integrated inductor-requires external 1.0 µH inductor and increases layout complexity and EMI risk. | Choose only if higher current (>600 mA) or smaller footprint (2 mm² vs 9 mm²) outweighs BOM simplification and thermal benefits of MIC33050-CYHL-TR. |
Compared with MIC33050-4YHL-TR and TPS6208818RTER, the MIC33050-CYHL-TR uniquely combines 1.0 V fixed output, integrated inductor, and HyperLight Load® efficiency-making it the only drop-in solution for space- and battery-limited 1.0 V MPU rails without compromising transient response or thermal performance.
Availability
MIC33050-CYHL-TR is available at Aetrix Electronics and suitable for MPU power, wearable devices, and USB-powered instrumentation requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC33050-CYHL-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 embedded control and energy-efficient solutions.
The MIC33050 product line delivers fully integrated, high-frequency buck modules targeting ultra-compact, battery-sensitive applications-including wearables, portable medical devices, and space-constrained IoT edge nodes.
FAQ
What is the output voltage of the MIC33050-CYHL-TR?
The MIC33050-CYHL-TR provides a fixed 1.0 V output voltage with ±2.5% accuracy over temperature and line/load conditions. This value is set internally via laser-trimmed resistors-no external feedback components are required, simplifying design and improving long-term stability compared to adjustable regulators.
Does the MIC33050-CYHL-TR require an external inductor?
No, the MIC33050-CYHL-TR integrates a high-frequency power inductor within its 3 mm × 3 mm HDFN package. This eliminates the need for external magnetics, reduces EMI susceptibility, and cuts total solution size-making it ideal for ultra-dense PCB layouts where board space and component count are critical constraints.
What is the maximum output current rating for the MIC33050-CYHL-TR?
The MIC33050-CYHL-TR delivers up to 600 mA of continuous output current under typical thermal conditions (θJA = 60°C/W, TA ≤ 85°C). At full load and 5.5 V input, peak efficiency exceeds 93%, and thermal derating begins above 125°C junction temperature-monitored via internal overtemperature shutdown at 165°C.
How does the HyperLight Load® feature improve efficiency at light loads?
The HyperLight Load® architecture in the MIC33050-CYHL-TR uses pulse-frequency modulation (PFM) below ~150 mA, reducing switching losses while maintaining fast transient response. This achieves >85% efficiency at just 1 mA output-significantly outperforming conventional PWM-only regulators that drop below 50% efficiency at microamp loads.
Is the MIC33050-CYHL-TR pin-compatible with other MIC33050 variants?
Yes, all MIC33050 variants-including MIC33050-CYHL-TR (1.0 V), MIC33050-4YHL-TR (1.2 V), and MIC33050-GYHL-TR (1.8 V)-share identical 12-pin 3 mm × 3 mm HDFN pinout and thermal pad layout. Only the output voltage differs; no PCB changes are needed when migrating between fixed-output versions.
MIC33050-CYHL-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):
- 1V
- 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-CYHL-TR FAQ
1.How can I place an order for MIC33050-CYHL-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC33050-CYHL-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-CYHL-TR reliable?
The price and inventory of MIC33050-CYHL-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-CYHL-TR is usually 5 days.
3.What payment methods are accepted for MIC33050-CYHL-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC33050-CYHL-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC33050-CYHL-TR?
MIC33050-CYHL-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC33050-CYHL-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-CYHL-TR?
For technical support, including MIC33050-CYHL-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC33050-CYHL-TR requirements.
6.How does Aetrix verify that MIC33050-CYHL-TR is sourced from the original manufacturer or authorized distributors?
All MIC33050-CYHL-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-CYHL-TR meets industry standards.
7.What is the process for return or replacement of MIC33050-CYHL-TR?
All MIC33050-CYHL-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC33050-CYHL-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-CYHL-TR part is unused and in its original packaging.
Return procedure for MIC33050-CYHL-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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