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Microchip Technology MIC2205-1.5YML-TR
- Part No.:
- MIC2205-1.5YML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 10-VFDFN Exposed Pad, 10-MLF®
- Datasheet:
-
MIC2205-1.5YML-TR.pdf
- Description:
- IC REG BUCK 1.5V 600MA 10MLF
- Quantity:
- Payment:
- Shipping:
Inventory:1,138
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Product details
Overview
MIC2205-1.5YML-TR from Microchip Technology is a 2 MHz synchronous buck regulator with integrated LDO standby mode, delivering 1.5 V fixed output at up to 600 mA in PWM mode and 60 mA in LDO mode, with 18 μA quiescent current and 75 μVRMS output noise. It operates from 2.7–5.5 V input, supports 100% duty cycle, and targets portable power rails in USB peripherals and handheld devices.
For engineers reviewing the MIC2205-1.5YML-TR datasheet, MIC2205-1.5YML-TR pinout, MIC2205-1.5YML-TR application, or MIC2205-1.5YML-TR equivalent, key selection criteria include fixed 1.5 V output accuracy (±2% over temperature), ultra-low-noise LDO mode operation, thermal shutdown at 160°C, stable performance with 1 μF ceramic output capacitor, and compatibility with 2.2 μH inductors in compact 3 mm × 3 mm VDFN-10L packaging.
Technical Context
The MIC2205-1.5YML-TR integrates dual regulation architectures: a constant-frequency 2 MHz PWM buck converter with internal high-side/low-side MOSFETs and an independent low-noise LDO activated via LOWQ pin control. Its type III compensation enables stability with small 1–4.7 μF output capacitors while maintaining >95% efficiency at full load.
It features separate analog (AGND) and power (PGND) ground paths, dedicated AVIN bias supply decoupled by 0.1 μF, and a feedback pin (FB) internally configured for 1.5 V fixed output-eliminating external resistor dividers but retaining feed-forward capacitor support (100 pF typical) for transient response optimization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±2% over –40°C to +125°C junction range |
| Input Voltage Range | 2.7 V to 5.5 V - supports single-cell Li-ion, USB 5 V, and 3.3 V system rails |
| Max Output Current | 600 mA in PWM mode; 60 mA in LDO mode - enables dynamic load scaling |
| Quiescent Current | 18 μA in LDO mode - extends battery life during system sleep without ripple penalty |
| Switching Frequency | 2 MHz ±10% - allows use of small 2.2 μH inductors and reduces EMI fundamental frequency |
| Output Noise | 75 μVRMS (10 Hz–100 kHz) - meets low-noise analog rail requirements without post-regulation |
| Duty Cycle Range | 0–100% - supports dropout operation down to VIN = VOUT + 110 mV at 50 mA |
| Thermal Protection | 160°C shutdown with 20°C hysteresis - prevents thermal runaway in sealed enclosures |
Pinout & Package
Package: 10-lead 3 mm × 3 mm × 0.9 mm Very Thin Plastic Dual Flat No-Lead (VDFN-10L), RoHS-compliant, with exposed thermal pad (EP/GND) for enhanced heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 AGND | Analog Ground Reference | Low-noise return path for FB, BIAS, and internal reference - must be isolated from PGND loop |
| 2 LDO | LDO Output Terminal | Connects directly to VOUT; provides regulated 1.5 V in LOWQ = low state; high-impedance in PWM mode |
| 3 BIAS | Internal Bias Supply Input | Powered from AVIN via 6 Ω resistor; requires 0.1 μF local bypass to AGND for control-loop stability |
| 4 AVIN | Analog Power Input | Supplies LDO and bias circuitry; must tie to VIN with careful layout to reject switching noise |
| 5 FB | Feedback Input | Internally connected to 1.5 V divider; accepts 100 pF feed-forward cap to improve load transient response |
| 6 EN | Enable Control Input | Logic-high (>0.85 V) enables regulation; logic-low (<0.5 V) reduces IQ to <5 μA and tri-states SW/PGND |
| 7 LOWQ | Mode Select Input | Logic-low (<0.5 V) activates LDO mode (18 μA IQ); logic-high (>1.5 V) enables PWM mode (600 mA) |
| 8 VIN | Main Power Input | Supplies internal MOSFETs and drivers; requires ≥1 μF X5R/X7R ceramic bypass to PGND |
| 9 SW | Power Switch Node | Drives external 2.2 μH inductor; high dv/dt node - minimize trace area and distance to PGND |
| 10 PGND | Power Ground Return | High-current return for PWM switch; must form tight loop with VIN and SW to limit EMI |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Noise LDO Mode | 75 μVRMS output noise with no burst-mode ripple - suitable for RF, ADC, and audio supply rails |
| 100% Duty-Cycle Capability | Enables operation with VIN as low as VOUT + 110 mV at 50 mA - critical for battery end-of-life support |
| Single-Capacitor Stability | Stable with 1 μF ceramic output capacitor - reduces BOM count and board space vs. traditional buck regulators |
| Integrated Power MOSFETs | 0.4 Ω high-side and low-side RDS(on) - eliminates external FETs and gate drivers for compact 600 mA solutions |
| Independent Analog/Power Grounds | AGND and PGND separation minimizes coupling of switching noise into feedback and reference circuits |
| Micropower Shutdown | <5 μA shutdown current with EN = low - preserves battery charge during long-term storage |
Applications
| USB Peripheral Power | Portable Audio Codec Supply |
|---|---|
Use Scenario: Powering USB HID devices (keyboards, mice) and bus-powered hubs requiring clean, low-noise 1.5 V logic rails. IC Role / Device Role / Timing Role: Primary DC-DC converter providing regulated 1.5 V from 5 V USB input; switches to LDO mode during device suspend. Use Value: Eliminates need for discrete LDO post-regulator by delivering 75 μVRMS noise in LDO mode while maintaining 600 mA capability during active data transfer. | Use Scenario: Supplying analog front-end and DAC sections in Bluetooth headphones and portable DAC/amps. IC Role / Device Role / Timing Role: Low-noise voltage source for precision audio circuitry; leverages LDO mode during playback pause to extend battery runtime. Use Value: Achieves 1.5 V output with ±2% tolerance and 75 μVRMS noise - meets THD+N requirements without additional filtering components. |
| Cellular Baseband Core Rail | PDA Application Processor I/O Supply |
Use Scenario: Delivering core voltage to 2G/3G baseband processors operating in burst transmission modes with rapid load transients. IC Role / Device Role / Timing Role: Synchronous buck regulator with ultra-fast transient response; transitions between PWM and LDO modes based on processor activity state. Use Value: Maintains output regulation within ±1.5% during 10–90% load steps (100 mA → 600 mA) with <10 μs recovery - prevents digital logic errors during RF transmit bursts. | Use Scenario: Powering I/O banks of ARM-based PDAs requiring stable 1.5 V for SDIO, USB OTG, and display interface logic. IC Role / Device Role / Timing Role: Fixed-output step-down regulator supporting wide input range (2.7–5.5 V) from Li-ion or wall adapter sources. Use Value: Delivers 600 mA at >95% efficiency across input range while meeting JEDEC JESD22-A114 reliability standards for industrial temperature operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62231DRVR | 1.5 V fixed output; 2.05 MHz switching; 350 mA max; 22 μA LDO quiescent current; 6-pin WSON package | Lower output current; no LDO mode - uses PFM for light-load efficiency | Select when board space is constrained and 350 mA suffices; avoid if LDO-mode noise immunity is required. |
| RT8059NGSP | 1.5 V fixed output; 2 MHz switching; 600 mA max; 25 μA quiescent current; 10-pin WDFN package | No dedicated LDO mode - achieves low IQ via pulse-skipping; higher output ripple in light load | Choose for cost-sensitive designs where 75 μVRMS noise is not mandatory; verify PSRR meets system sensitivity. |
Compared with TPS62231DRVR and RT8059NGSP, the MIC2205-1.5YML-TR uniquely combines 600 mA PWM capability with true LDO standby mode - enabling simultaneous high-efficiency heavy-load operation and ultra-low-noise light-load regulation without trade-offs in output accuracy or transient response.
Availability
MIC2205-1.5YML-TR is available at Aetrix Electronics and suitable for USB peripheral power, portable audio codec supply, and cellular baseband core rail applications requiring stable component supply, extended temperature operation (–40°C to +125°C), and RoHS-compliant packaging.
Supply support for MIC2205-1.5YML-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 manufacturer specializing in microcontrollers, analog devices, and power management ICs, with broad industrial and automotive qualification coverage.
The MIC2205 product line delivers high-efficiency, low-noise DC-DC conversion for portable electronics, emphasizing seamless PWM-to-LDO mode transition, minimal external component count, and robust thermal protection for space-constrained battery-powered systems.
FAQ
What is the output voltage tolerance of the MIC2205-1.5YML-TR over temperature?
The MIC2205-1.5YML-TR provides a fixed 1.5 V output with ±2% tolerance across its full operating junction temperature range of –40°C to +125°C, as specified in the Electrical Characteristics table under "Fixed Output Voltages" with test conditions at TA = 25°C and bold values covering the full temperature range.
Can the MIC2205-1.5YML-TR operate with a 1 μF output capacitor?
Yes, the MIC2205-1.5YML-TR is explicitly characterized for stability with a minimum 1 μF ceramic output capacitor, as stated in the General Description and Applications Information sections. It uses type III internal compensation optimized for 1–4.7 μF capacitance, making 1 μF a valid and space-saving design choice.
What is the maximum continuous output current in LDO mode for the MIC2205-1.5YML-TR?
The MIC2205-1.5YML-TR delivers up to 60 mA continuously in LDO mode, as confirmed in the Electrical Characteristics table under "LDO Current Limit" (60–120 mA) and the Functional Description section, which states "In linear (LDO) mode the output can deliver 60 mA of current to the output."
Does the MIC2205-1.5YML-TR require an external feedback resistor network?
No, the MIC2205-1.5YML-TR is a fixed 1.5 V output variant and does not require external feedback resistors. The FB pin is internally connected to a precision voltage divider; only a 100 pF feed-forward capacitor between FB and VOUT is recommended per the Typical Application schematic and Applications Information section.
What thermal protection features does the MIC2205-1.5YML-TR include?
The MIC2205-1.5YML-TR incorporates overtemperature shutdown at 160°C with 20°C hysteresis, as documented in the Electrical Characteristics table. This protects the device during sustained overload or poor PCB thermal design, and the thermal shutdown threshold is guaranteed across the full –40°C to +125°C junction temperature range.
MIC2205-1.5YML-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad, 10-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):
- 1.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 600mA
- Frequency - Switching:
- 2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MLF® (3x3)
MIC2205-1.5YML-TR FAQ
1.How can I place an order for MIC2205-1.5YML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC2205-1.5YML-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 MIC2205-1.5YML-TR reliable?
The price and inventory of MIC2205-1.5YML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC2205-1.5YML-TR is usually 5 days.
3.What payment methods are accepted for MIC2205-1.5YML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC2205-1.5YML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC2205-1.5YML-TR?
MIC2205-1.5YML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC2205-1.5YML-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 MIC2205-1.5YML-TR?
For technical support, including MIC2205-1.5YML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC2205-1.5YML-TR requirements.
6.How does Aetrix verify that MIC2205-1.5YML-TR is sourced from the original manufacturer or authorized distributors?
All MIC2205-1.5YML-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 MIC2205-1.5YML-TR meets industry standards.
7.What is the process for return or replacement of MIC2205-1.5YML-TR?
All MIC2205-1.5YML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC2205-1.5YML-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 MIC2205-1.5YML-TR part is unused and in its original packaging.
Return procedure for MIC2205-1.5YML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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