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Microchip Technology MIC5265-3.0YD5
- Part No.:
- MIC5265-3.0YD5
- Manufacturer:
- Microchip Technology
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MIC5265-3.0YD5.pdf
- Description:
- IC REG LINEAR 3V 150MA TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,700
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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 packaging, delivering a 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 receivers and digital baseband circuits 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-high enable pin, zero-off-mode shutdown current (<2µA), compatibility with 1µF ceramic output capacitors, and thermal performance in compact layouts (θJA = 235°C/W).
Technical Context
The MIC5265-3.0YD5 integrates a CMOS-based error amplifier, quick-start bypass circuitry, and an N-channel active-shutdown MOSFET to discharge the output during disable. Its internal reference is bypassed via Pin 4 (BYP), enabling noise reduction down to 57µVrms when using a 0.01µF capacitor.
It operates across 2.7V–5.5V input, supports fast load transients (5µs response with 150mA step), and maintains regulation down to zero load-critical for CMOS RAM keep-alive functions. Thermal shutdown activates at 150°C with 10°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±3% over –40°C to +125°C; enables direct replacement of 3.0V logic and RF supply rails. |
| Dropout Voltage | 210mV at 150mA; allows operation from 3.21V minimum input-compatible with discharged Li-ion cells (3.0–4.2V). |
| Quiescent Current | 75µA typical; ensures ultra-low standby power in battery-critical applications like GPS receivers. |
| PSRR | 60dB at 1kHz; suppresses switching noise from upstream DC/DC converters feeding RF front-ends. |
| Output Noise | 57µVrms (10Hz–100kHz); meets stringent phase-noise requirements in cellular transceivers and GPS LNA stages. |
| Enable Threshold | Logic-high ≥1.6V, logic-low ≤0.2V; compatible with 1.8V/3.3V GPIO without level-shifting. |
| Thermal Shutdown | Triggers at 150°C with 10°C hysteresis; prevents latch-up during sustained high-power dissipation 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 present. Compatible with standard SMT reflow profiles per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Supply | Accepts 2.7V–5.5V; requires 1µF low-ESR ceramic bypass to GND for stability and transient immunity. |
| 2 (GND) | Ground Reference | Common return path for input, output, and enable; must be low-impedance to minimize ground bounce in RF sections. |
| 3 (EN) | Enable Control | Active-high CMOS input; drives regulator ON/OFF; floating state prohibited-must tie to VIN or GND via resistor. |
| 4 (BYP) | Reference Bypass | Connects 0.01µF–1.0µF capacitor to GND to reduce reference noise; directly lowers output voltage noise floor. |
| 5 (OUT) | Regulated Output | Delivers 3.0V @ up to 150mA; stable with ≥1µF ceramic output capacitor (X7R/X5R dielectric recommended). |
Key Features
| Feature | Design Value |
|---|---|
| Low-Noise Regulation | 57µVrms output noise enables use in sensitive RF receiver chains without additional filtering. |
| Active Output Discharge | Integrated N-MOSFET pulls OUT to GND during shutdown, preventing floating voltages on downstream logic or analog circuitry. |
| No-Load Stability | Maintains regulation with 0mA load-essential for maintaining backup voltage on real-time clocks or SRAM retention rails. |
| Ceramic Capacitor Compatibility | Stable with 1µF X7R/X5R ceramics (ESR <300mΩ); eliminates need for costly tantalum or electrolytic capacitors. |
| Fast Transient Response | Settles within 5µs after 150mA load step-preserves signal integrity in burst-mode digital processors and modems. |
Applications
| Cellular Telephone RF Power Supply | GPS Receiver Baseband Core |
|---|---|
Use Scenario: Powers low-noise amplifier (LNA) and mixer stages in GSM/UMTS handset front-end modules. IC Role / Device Role / Timing Role: Provides ultra-low-noise 3.0V bias rail isolated from noisy digital supply domains. Use Value: 57µVrms noise and 60dB PSRR at 1kHz prevent reciprocal mixing and maintain EVM compliance under co-site interference. | Use Scenario: Supplies 3.0V core voltage to GPS baseband processor during cold/warm start sequences. IC Role / Device Role / Timing Role: Delivers regulated power with fast turn-on (<150µs) and zero-load stability for RTC and flash memory retention. Use Value: Enables immediate acquisition lock after wake-from-sleep without brownout-induced data loss or reset cycles. |
| PDA Application Processor I/O Rail | Bluetooth Low Energy Peripheral Module |
Use Scenario: Powers 3.0V I/O banks of ARM-based application processors in handheld PDAs. IC Role / Device Role / Timing Role: Acts as dedicated LDO for interface logic, decoupled from main SoC power domain. Use Value: 210mV dropout ensures uninterrupted operation down to 3.21V input-extending runtime from partially discharged Li-ion batteries. | Use Scenario: Supplies 3.0V to BLE radio IC and sensor hub in wearables with aggressive duty cycling. IC Role / Device Role / Timing Role: Provides enable-controlled power with <2µA shutdown current to minimize quiescent drain. Use Value: Active-high EN pin synchronizes with host MCU sleep states, achieving sub-1µA system standby current in deep-sleep mode. |
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, 1.6µA quiescent current, SOT-23-3 package (no EN/BYP pins) | Lacks enable and bypass pins; suited for simpler, non-RF applications where noise and control are secondary | Select when board space is constrained and only basic 3.0V regulation is needed without active control or ultra-low noise. |
| TCS2103-3.0 | 150mA, 200mV dropout at 150mA, 65dB PSRR at 1kHz, SOT-23-5 with EN/BYP | Higher PSRR improves rejection of high-frequency switching noise; slightly lower dropout enhances battery life margin | Prefer when operating near minimum input voltage or in environments with strong 2.4GHz/5GHz RF coupling into power rails. |
Compared with MCP1700-3002E/TO and TCS2103-3.0, the MIC5265-3.0YD5 uniquely balances ultra-low noise (57µVrms), active output discharge, and full feature set (EN+BYP) in the same Thin SOT-23-5 footprint-making it optimal for RF-sensitive, battery-constrained portable designs requiring both precision and controllability.
Availability
MIC5265-3.0YD5 is available at Aetrix Electronics and suitable for cellular telephony, GPS receivers, PDAs, and Bluetooth peripheral modules requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
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 family was designed specifically for cost-sensitive, space-constrained portable electronics requiring clean, controllable, low-quiescent LDO regulation-targeting RF and digital subsystems in handsets, GPS units, and PDAs.
FAQ
What is the maximum input voltage rating for the MIC5265-3.0YD5?
The MIC5265-3.0YD5 has an absolute maximum input voltage rating 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 systems, the MIC5265-3.0YD5 is optimized for inputs between 3.0V and 4.2V, with headroom maintained by its 210mV dropout voltage.
Does the MIC5265-3.0YD5 require an external bypass capacitor, and what value is recommended?
Yes, the MIC5265-3.0YD5 requires an external capacitor on the BYP pin (Pin 4) to achieve its specified 57µVrms output noise. A 0.01µF ceramic capacitor is recommended for most RF applications; values up to 1.0µF further improve PSRR but increase turn-on time slightly. The capacitor must connect directly between BYP and GND, with short, low-inductance traces.
Can the MIC5265-3.0YD5 remain stable with no load connected to its output?
Yes, the MIC5265-3.0YD5 remains stable and in regulation with zero load-a key differentiator from many legacy LDOs. This capability is essential for applications such as CMOS RAM keep-alive, real-time clock backup, or sensor biasing where continuous low-current regulation is required without risk of oscillation or dropout.
What is the shutdown current of the MIC5265-3.0YD5 when the EN pin is driven low?
When the EN pin is driven below 0.2V (logic low), the MIC5265-3.0YD5 enters zero-off-mode, drawing less than 2µA total supply current-including leakage and enable-input bias. This ultra-low shutdown current extends battery life in intermittently active devices such as GPS trackers and BLE beacons where the regulator spends most time disabled.
Is the MIC5265-3.0YD5 compatible with standard 1µF ceramic output capacitors?
Yes, the MIC5265-3.0YD5 is fully stable with a 1µF X7R or X5R ceramic output capacitor (ESR <300mΩ). Unlike older LDOs requiring large tantalum or aluminum electrolytics, this design eliminates ESR dependency-reducing BOM cost, board area, and failure risk while improving transient response and temperature stability across –40°C to +125°C.
MIC5265-3.0YD5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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 FAQ
1.How can I place an order for MIC5265-3.0YD5 through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5265-3.0YD5 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 reliable?
The price and inventory of MIC5265-3.0YD5 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 is usually 5 days.
3.What payment methods are accepted for MIC5265-3.0YD5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5265-3.0YD5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5265-3.0YD5?
MIC5265-3.0YD5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5265-3.0YD5 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?
For technical support, including MIC5265-3.0YD5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5265-3.0YD5 requirements.
6.How does Aetrix verify that MIC5265-3.0YD5 is sourced from the original manufacturer or authorized distributors?
All MIC5265-3.0YD5 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 meets industry standards.
7.What is the process for return or replacement of MIC5265-3.0YD5?
All MIC5265-3.0YD5 units undergo pre-shipment inspection (PSI). If there is an issue with MIC5265-3.0YD5, 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 part is unused and in its original packaging.
Return procedure for MIC5265-3.0YD5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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