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Microchip Technology MIC5265-3.0YD5-TR
- Part No.:
- MIC5265-3.0YD5-TR
- Manufacturer:
- Microchip Technology
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MIC5265-3.0YD5-TR.pdf
- Description:
- IC REG LINEAR 3V 150MA TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,775
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Product details
Overview
MIC5265-3.0YD5 from Micrel is a 150mA low-dropout linear regulator in Pb-free Thin SOT-23-5 package, delivering fixed 3.0V output with 210mV dropout at full load, 57µVrms output noise, and 60dB PSRR at 1kHz. It serves as a clean, low-noise power source for RF and digital circuitry in portable electronics powered by single-cell Li-ion or 3.3V/5V rails.
For engineers reviewing the MIC5265-3.0YD5 datasheet, MIC5265-3.0YD5 pinout, MIC5265-3.0YD5 application, or MIC5265-3.0YD5 equivalent, key selection criteria include its active shutdown discharge capability, CMOS-compatible enable input, ceramic-capacitor stability, and thermal performance in compact layouts.
Technical Context
The MIC5265-3.0YD5 integrates a precision bandgap reference, error amplifier, and NMOS pass transistor with quick-start/noise-cancellation circuitry. Its active shutdown uses an internal N-channel MOSFET to discharge the output capacitor when disabled, enabling rapid system power sequencing.
It operates across 2.7V–5.5V input, supports 0.01µF–1.0µF bypass capacitance on the BYP pin to tune noise/PSRR trade-offs, and maintains regulation down to zero load-critical for CMOS RAM keep-alive functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±3% over –40°C to +125°C; ensures stable core voltage for 3.0V logic and RF ICs. |
| Dropout Voltage | 210mV at 150mA; enables operation from 3.21V input-compatible with discharged Li-ion cells (3.0–4.2V). |
| Quiescent Current | 75µA typical; minimizes standby power loss in battery-powered systems with frequent sleep/wake cycles. |
| Output Noise | 57µVrms (10Hz–100kHz); preserves signal integrity in sensitive RF receivers and ADC reference supplies. |
| PSRR | 60dB at 1kHz; suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Enable Threshold | Logic-high ≥1.6V, logic-low ≤0.2V; compatible with 1.8V/3.3V GPIO without level-shifting. |
| Thermal Shutdown | 150°C with 10°C hysteresis; protects against sustained overload in confined PCB areas. |
Pinout & Package
Pb-Free Thin SOT-23-5 (M5) package: 2.9mm × 1.6mm × 1.1mm body, 0.95mm pitch, exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Input | Accepts 2.7V–5.5V unregulated input; requires 1µF ceramic bypass to GND for stability. |
| 2 (GND) | Ground Reference | Common return path for input, output, and enable; must be low-impedance connection to minimize noise coupling. |
| 3 (EN) | Enable Control | CMOS-compatible active-high input; drives output to regulation when ≥1.6V, forces zero-off current when ≤0.2V. |
| 4 (BYP) | Reference Bypass | Connects 0.01µF–1.0µF capacitor to GND to reduce reference noise and improve PSRR; optional but recommended for RF apps. |
| 5 (OUT) | Regulated Output | Delivers 3.0V ±3% to load; requires ≥1µF low-ESR ceramic capacitor (≤300mΩ) for stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Active Output Discharge | Internal N-MOSFET clamps OUT to GND during shutdown, preventing floating voltage on downstream circuitry. |
| Ceramic-Capacitor Stability | Stable with ≥1µF X7R/X5R ceramic output caps (ESR ≤300mΩ); eliminates need for tantalum or electrolytic alternatives. |
| No-Load Regulation | Maintains 3.0V output with 0mA load-enables use in always-on memory backup and real-time clock circuits. |
| Fast Transient Response | Settles within microseconds after 100µA ↔ 150mA load steps; prevents brownout during digital processor burst activity. |
| Low-Noise Architecture | 57µVrms noise + 60dB PSRR enables direct powering of VCOs, PLLs, and RF front-end ICs without additional filtering. |
Applications
| Cellular RF Power Supply | Portable GPS Receiver |
|---|---|
Use Scenario: Powers RF synthesizer and receiver chain in GSM/UMTS handsets operating from single Li-ion cell. IC Role / Device Role / Timing Role: Low-noise 3.0V supply for VCO biasing and LNA analog sections. Use Value: 57µVrms noise and 60dB PSRR prevent phase noise degradation and adjacent-channel interference. | Use Scenario: Supplies baseband processor and GPS RF front-end in handheld navigation devices. IC Role / Device Role / Timing Role: Stable 3.0V rail for correlator ASIC and low-noise amplifier stages. Use Value: Active shutdown discharges output during sleep mode, eliminating hold-up voltage that could delay wake-up timing. |
| Digital Baseband Core | Bluetooth Audio Module |
Use Scenario: Provides regulated 3.0V to ARM-based application processors in PDAs and smart remotes. IC Role / Device Role / Timing Role: Primary core voltage regulator with fast load-step response. Use Value: 210mV dropout allows >95% battery utilization; 75µA quiescent current extends standby time. | Use Scenario: Powers Bluetooth SoC and audio DAC in wireless earbuds and headsets. IC Role / Device Role / Timing Role: Clean 3.0V supply for mixed-signal audio processing and RF transceiver. Use Value: No-load stability maintains voltage during deep-sleep states; BYP pin enables noise tuning for SNR-critical DAC reference. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3002E/TO | 300mA rating, 6µA quiescent current, SOT-23-3 package (no EN/BYP pins) | Lacks enable and bypass pins; unsuitable for RF noise-sensitive or sequenced-power designs | Select when ultra-low IQ dominates and active shutdown is unnecessary. |
| Torex XC6206P302MR | 150mA, 3.0V, 25µA IQ, SOT-23-5, no BYP pin, 45dB PSRR at 1kHz | Lower PSRR and no reference bypass option limits RF suitability | Select for cost-sensitive digital-only loads where noise is non-critical. |
Compared with MCP1700-3002E/TO and XC6206P302MR, the MIC5265-3.0YD5 uniquely combines RF-grade noise performance, active output discharge, and enable-controlled sequencing-all in the same Thin SOT-23-5 footprint-making it optimal for space-constrained, multi-rail portable systems.
Availability
MIC5265-3.0YD5 is available at Aetrix Electronics and suitable for cellular telephones, GPS receivers, and portable digital assistants requiring stable component supply with consistent parametric performance across temperature and production lots.
Supply support for MIC5265-3.0YD5 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
Micrel Inc. was a U.S.-based semiconductor company specializing in analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015.
The MIC5265 product line delivers µCap LDO regulators optimized for cost-sensitive, space-constrained portable electronics-emphasizing low noise, fast transient response, and seamless integration with ceramic capacitors.
FAQ
What is the maximum input voltage rating for the MIC5265-3.0YD5?
The MIC5265-3.0YD5 has an absolute maximum input voltage of +7V, but its specified operating range is +2.7V to +5.5V. Exceeding 5.5V may cause permanent damage or unpredictable behavior. For reliable operation in single-cell Li-ion applications, VIN should remain between 3.0V and 4.2V, well within the safe operating window of the MIC5265-3.0YD5.
Does the MIC5265-3.0YD5 require an external bypass capacitor on the BYP pin?
The MIC5265-3.0YD5 does not require the BYP pin to be used-it can be left open-but connecting a 0.01µF capacitor to GND significantly reduces output noise to 57µVrms and improves PSRR. This is strongly recommended for RF and precision analog applications. Larger values up to 1.0µF further enhance noise suppression at the cost of slightly increased turn-on time.
How does the active shutdown feature of the MIC5265-3.0YD5 work?
The MIC5265-3.0YD5 incorporates an internal N-channel MOSFET that connects the OUT pin to GND when the EN pin is driven low. This active discharge rapidly de-energizes the output capacitor and downstream load, preventing residual voltage from interfering with power sequencing or causing latch-up in connected ICs. The discharge resistance is specified at 500Ω, enabling predictable discharge timing.
Can the MIC5265-3.0YD5 operate stably with no load connected?
Yes, the MIC5265-3.0YD5 remains stable and maintains regulation even with zero load current-a key differentiator from many older LDO architectures. This capability is essential for applications like CMOS RAM keep-alive circuits, RTC backup supplies, and always-on sensor nodes where continuous voltage regulation is required regardless of system activity state.
What output capacitor types and values are validated for use with the MIC5265-3.0YD5?
The MIC5265-3.0YD5 is validated for stable operation with ≥1µF X7R or X5R ceramic capacitors having ESR ≤300mΩ. Z5U and Y5V dielectrics are discouraged due to large capacitance drift over temperature. While larger values (e.g., 2.2µF) are permissible, performance is optimized at 1µF; increasing capacitance yields diminishing returns in transient response and noise reduction.
MIC5265-3.0YD5-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 2 µA
- Current - Supply (Max):
- 150 µA
- PSRR:
- 64dB ~ 62dB (1kHz ~ 100Hz)
- Control Features:
- Enable
- Protection Features:
- Over Temperature, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
MIC5265-3.0YD5-TR FAQ
1.How can I place an order for MIC5265-3.0YD5-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5265-3.0YD5-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 MIC5265-3.0YD5-TR reliable?
The price and inventory of MIC5265-3.0YD5-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5265-3.0YD5-TR is usually 5 days.
3.What payment methods are accepted for MIC5265-3.0YD5-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5265-3.0YD5-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5265-3.0YD5-TR?
MIC5265-3.0YD5-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5265-3.0YD5-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 MIC5265-3.0YD5-TR?
For technical support, including MIC5265-3.0YD5-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5265-3.0YD5-TR requirements.
6.How does Aetrix verify that MIC5265-3.0YD5-TR is sourced from the original manufacturer or authorized distributors?
All MIC5265-3.0YD5-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 MIC5265-3.0YD5-TR meets industry standards.
7.What is the process for return or replacement of MIC5265-3.0YD5-TR?
All MIC5265-3.0YD5-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5265-3.0YD5-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 MIC5265-3.0YD5-TR part is unused and in its original packaging.
Return procedure for MIC5265-3.0YD5-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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