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Microchip Technology MIC5305-2.85YML-TR
- Part No.:
- MIC5305-2.85YML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 6-VDFN Exposed Pad, 6-MLF®
- Datasheet:
-
MIC5305-2.85YML-TR.pdf
- Description:
- IC REG LINEAR 2.85V 150MA 6MLF
- Quantity:
- Payment:
- Shipping:
Inventory:3,354
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Product details
Overview
MIC5305-2.85YML-TR from Micrel is a fixed-output 2.85V, 150mA ultra-low-dropout linear regulator in a 6-pin 2mm × 2mm MLF® package, featuring 60mV dropout at full load, ±1.0% initial output accuracy, and 20µVrms output noise - designed for space-constrained, battery-powered audio codec and portable electronics power rails.
For engineers reviewing the MIC5305-2.85YML-TR datasheet, MIC5305-2.85YML-TR pinout, MIC5305-2.85YML-TR application, or MIC5305-2.85YML-TR equivalent, key selection criteria include dropout voltage at 150mA, PSRR performance up to 85dB at 1kHz, enable pin logic compatibility, thermal shutdown behavior, and ceramic capacitor stability with 1µF output capacitance.
Technical Context
The MIC5305-2.85YML-TR integrates a CMOS-based LDO core with a precision bandgap reference, quick-start bypass circuitry, and internal current limit (300–900mA) plus thermal shutdown protection. Its error amplifier drives a low-RDS(on) pass element optimized for 2.25V–5.5V input range.
Operation relies on three external capacitors: 1µF input, 1µF output, and optional 0.1µF bypass on the BYP pin to reduce reference noise and improve PSRR. The EN pin accepts 0–VIN logic-level control with <1µA leakage in both states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.85V ±1.0% initial accuracy ensures stable bias for audio codecs and RF front-ends without trimming. |
| Max Output Current | 150mA guaranteed continuous output supports single-rail digital baseband or sensor interface ICs. |
| Dropout Voltage | 60mV @ 150mA enables operation from 2.91V input - critical for Li-ion single-cell systems near end-of-discharge. |
| Ground Current | 90µA typical quiescent current minimizes standby power loss in always-on keep-alive circuits. |
| PSRR | 85dB @ 1kHz with 0.1µF BYP capacitor suppresses switching noise from adjacent DC/DC converters. |
| Output Noise | 20µVrms (10Hz–100kHz) preserves SNR in analog signal chains like microphone preamps or DAC outputs. |
| Enable Threshold | Logic-high enable ≥1.0V allows direct interfacing with 1.8V/3.3V GPIO without level-shifting. |
Pinout & Package
Package: 6-pin 2mm × 2mm MLF® (exposed pad grounded), 0.5mm pitch, RoHS-compliant leadless construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Active-high enable input | CMOS-compatible control pin; must be pulled high (>1.0V) to activate regulator; floating state prohibited. |
| 2 - GND | Power ground reference | Primary return path for load and quiescent current; connects internally to exposed heatsink pad. |
| 3 - VIN | Input supply connection | Accepts 2.25V–5.5V; requires 1µF ceramic bypass to GND for stability and transient response. |
| 4 - VOUT | Regulated output terminal | Delivers 2.85V ±1.0% to load; stable with ≥1µF X7R/X5R ceramic output capacitor. |
| 5 - NC | No-connect terminal | Internally unconnected; no external connection required; electrically isolated. |
| 6 - BYP | Reference bypass node | Connects 0.1µF capacitor to GND to reduce output noise and improve PSRR; open-circuit allowed. |
Key Features
| Feature | Design Value |
|---|---|
| µCap ceramic-stable design | Operates stably with only 1µF output capacitance - eliminates need for large tantalum or electrolytic capacitors. |
| Zero-off-mode shutdown | Draws ≤0.5µA when EN ≤0.2V - enables true power gating in battery-backed memory retention circuits. |
| Ultra-thin profile | 0.55mm max height in MLF® package fits within tight Z-axis constraints of slim mobile devices. |
| High-accuracy thermal regulation | ±2.0% output tolerance over –40°C to +125°C junction temperature ensures consistent performance across environmental extremes. |
| Fast turn-on time | ≤100µs with 1µF COUT and 0.1µF CBYP supports rapid power sequencing in multi-rail systems. |
Applications
| Audio Codec Power Supply | Fiber Optic Module Bias |
|---|---|
Use Scenario: Providing clean, low-noise 2.85V bias to stereo audio DACs and ADCs in smartphones and wearables. IC Role / Device Role / Timing Role: Primary low-noise analog rail regulator with PSRR >85dB suppressing PMIC switching noise. Use Value: 20µVrms output noise prevents audible hiss; 60mV dropout extends playback time by enabling operation down to 2.91V input. | Use Scenario: Powering laser diode drivers and transimpedance amplifiers in SFP+ optical transceivers. IC Role / Device Role / Timing Role: Precision bias source for analog front-end components requiring stable voltage under fast load transients. Use Value: 150mA output sustains peak driver currents; 30–100µs turn-on time aligns with module initialization sequences. |
| Portable Medical Sensor Node | Low-Power IoT Microcontroller Core Rail |
Use Scenario: Supplying regulated 2.85V to ultra-low-power biosensor signal conditioning ASICs in patch-style monitors. IC Role / Device Role / Timing Role: Always-on LDO maintaining RAM and real-time clock during deep-sleep modes. Use Value: 90µA quiescent current extends battery life to >1 year; no-load stability eliminates need for dummy loads. | Use Scenario: Delivering core voltage to ARM Cortex-M0+ microcontrollers in battery-operated edge nodes. IC Role / Device Role / Timing Role: Main system regulator enabling dynamic voltage scaling between active and sleep states. Use Value: Logic-compatible EN pin synchronizes with MCU wake-up signals; ±1.0% accuracy maintains timing margin for 2.85V-tolerant cores. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-285I/OT | 300mA output, 1.6µA quiescent current, SOT-23-3 package, no enable or bypass pin. | Lacks EN/BYP functionality; suited for simpler, lower-current, cost-sensitive designs without noise-critical analog sections. | Select when board space permits SOT-23-3 and system does not require zero-off-mode or PSRR optimization. |
| Torex XC6206P282MR-G | 150mA output, 1.0% accuracy, SOT-25 package, no enable pin, 25µVrms noise, 120mV dropout @150mA. | Higher dropout limits usable input range; no enable function restricts power sequencing flexibility. | Choose for footprint compatibility with existing SOT-25 layouts where enable control is unnecessary and 2.85V accuracy is acceptable. |
Compared with MCP1700T-285I/OT and XC6206P282MR-G, the MIC5305-2.85YML-TR uniquely combines ultra-low dropout (60mV), integrated enable, bypass-capacitor noise reduction, and MLF® space efficiency - making it optimal for compact, noise-sensitive, battery-constrained applications requiring precise 2.85V regulation.
Availability
MIC5305-2.85YML-TR is available at Aetrix Electronics and suitable for portable medical sensors, fiber optic transceivers, audio codec power supplies, and low-power IoT microcontroller core rails requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MIC5305-2.85YML-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
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 MIC5305 product line delivers µCap ultra-low-dropout regulators targeting space- and noise-constrained portable electronics, emphasizing ceramic capacitor compatibility, minimal quiescent current, and robust thermal protection.
FAQ
What is the maximum input voltage rating for the MIC5305-2.85YML-TR?
The MIC5305-2.85YML-TR has an absolute maximum input voltage of 6V, but its recommended operating input range is 2.25V to 5.5V. Exceeding 5.5V may trigger internal protection or cause reliability degradation. The device achieves optimal PSRR and dropout performance within this specified range, and operation above 5.5V voids guaranteed specifications per the datasheet's Absolute Maximum Ratings table.
Does the MIC5305-2.85YML-TR require an external bypass capacitor for basic operation?
No, the MIC5305-2.85YML-TR operates stably without an external bypass capacitor on the BYP pin. However, connecting a 0.1µF capacitor from BYP to GND reduces output noise to 20µVrms and improves PSRR to 85dB at 1kHz - essential for noise-sensitive analog circuits. Leaving BYP open is permissible but sacrifices noise and ripple rejection performance.
Can the MIC5305-2.85YML-TR be used with a 1.0µF X5R ceramic output capacitor?
Yes, the MIC5305-2.85YML-TR is specifically characterized and guaranteed stable with a 1.0µF X5R or X7R ceramic output capacitor. The datasheet confirms stability across temperature and bias conditions using these dielectrics. Y5V or Z5U capacitors are discouraged due to excessive capacitance drift, which may compromise regulation under varying thermal or voltage conditions.
What is the thermal shutdown threshold of the MIC5305-2.85YML-TR?
The MIC5305-2.85YML-TR activates thermal shutdown when the junction temperature exceeds +125°C, as defined in its Absolute Maximum Ratings. Recovery occurs once the junction cools below approximately +110°C, allowing automatic restart. This protection is internal and non-latching; no external reset is needed. Thermal resistance θJA is 93°C/W for the MLF® package, so ambient temperature limits depend on power dissipation - e.g., at 150mA and 5.0V input, max ambient is ~95°C.
Is the MIC5305-2.85YML-TR pin-compatible with other variants in the MIC5305 family?
Yes, all MIC5305 fixed-output variants in the 6-pin 2mm × 2mm MLF® package - including MIC5305-2.85YML-TR - share identical pinout, footprint, and thermal characteristics. Voltage differences are implemented internally; no PCB layout change is required when substituting between MIC5305-2.5YML-TR, MIC5305-2.85YML-TR, or MIC5305-3.3YML-TR, provided input/output capacitor values remain appropriate for the new output voltage.
MIC5305-2.85YML-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 6-VDFN Exposed Pad, 6-MLF®
- 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):
- 2.85V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.85V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 150 µA
- Current - Supply (Max):
- -
- PSRR:
- 85dB ~ 65dB (1kHz ~ 10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DFN (2x2)
MIC5305-2.85YML-TR FAQ
1.How can I place an order for MIC5305-2.85YML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5305-2.85YML-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 MIC5305-2.85YML-TR reliable?
The price and inventory of MIC5305-2.85YML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5305-2.85YML-TR is usually 5 days.
3.What payment methods are accepted for MIC5305-2.85YML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5305-2.85YML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5305-2.85YML-TR?
MIC5305-2.85YML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5305-2.85YML-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 MIC5305-2.85YML-TR?
For technical support, including MIC5305-2.85YML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5305-2.85YML-TR requirements.
6.How does Aetrix verify that MIC5305-2.85YML-TR is sourced from the original manufacturer or authorized distributors?
All MIC5305-2.85YML-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 MIC5305-2.85YML-TR meets industry standards.
7.What is the process for return or replacement of MIC5305-2.85YML-TR?
All MIC5305-2.85YML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5305-2.85YML-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 MIC5305-2.85YML-TR part is unused and in its original packaging.
Return procedure for MIC5305-2.85YML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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