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Microchip Technology MIC5305-2.0YML-TR
- Part No.:
- MIC5305-2.0YML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 6-VDFN Exposed Pad, 6-MLF®
- Datasheet:
-
MIC5305-2.0YML-TR.pdf
- Description:
- IC REG LINEAR 2V 150MA 6MLF
- Quantity:
- Payment:
- Shipping:
Inventory:4,463
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Product details
Overview
MIC5305-2.0YML-TR from Micrel is a fixed-output 2.0V, 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. It delivers stable power to noise-sensitive analog circuitry in space-constrained portable systems.
For engineers reviewing the MIC5305-2.0YML-TR datasheet, MIC5305-2.0YML-TR pinout, MIC5305-2.0YML-TR application, or MIC5305-2.0YML-TR equivalent, key selection criteria include dropout voltage under 150mA load, PSRR performance above 85dB at 1kHz, enable pin logic compatibility, ceramic capacitor stability, and thermal resistance of 93°C/W in the MLF package.
Technical Context
The MIC5305-2.0YML-TR integrates a CMOS-based LDO core with a precision bandgap reference, quick-start bypass circuitry, and thermal shutdown protection. Its error amplifier drives a low-RDS(on) pass transistor optimized for 60mV dropout at 150mA while maintaining stability with ≥1µF ceramic output capacitance.
It uses an active-high enable input compatible with 1.0V logic high threshold and 0.2V logic low threshold, and includes a dedicated BYP pin for external 0.1µF capacitor connection to reduce reference noise and improve PSRR by up to 85dB at 1kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.0V ±1.0% initial accuracy ensures precise biasing for 2.0V logic rails and analog sensors. |
| Max Output Current | 150mA guaranteed continuous output supports moderate-power RF modules and audio codecs. |
| Dropout Voltage | 60mV @ 150mA enables operation from 2.06V input - critical for single-cell Li-ion or Li-poly battery systems. |
| PSRR | 85dB @ 1kHz with 0.1µF BYP capacitor suppresses switching noise from adjacent DC/DC converters. |
| Output Noise | 20µVrms (10Hz–100kHz) minimizes jitter in clock buffers and SNR degradation in ADC/DAC signal chains. |
| Quiescent Current | 90µA typical at light load extends battery life in always-on keep-alive circuits like RTC or SRAM backup. |
| Enable Threshold | Logic-compatible: 1.0V min high, 0.2V max low - interfaces directly with 1.8V/2.5V/3.3V GPIO without level shifters. |
| Input Voltage Range | 2.25V to 5.5V supports wide-input applications including USB-powered peripherals and multi-rail systems. |
Pinout & Package
Package: 6-pin 2mm × 2mm MLF® (leadless, exposed thermal pad grounded internally).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Enable input | Active-high digital control: drives output on when ≥1.0V; reduces ground current to 0.5µA when ≤0.2V. |
| 2 - GND | Power ground | Reference node for all internal circuitry and thermal path via exposed pad; must be soldered to PCB ground plane. |
| 3 - VIN | Input supply | Accepts 2.25–5.5V; requires 1µF ceramic bypass capacitor to ensure transient response and stability. |
| 4 - VOUT | Regulated output | Delivers fixed 2.0V ±1.0%; stable with ≥1µF X7R/X5R ceramic capacitor; no-load regulation supported. |
| 5 - NC | No connection | Internally unconnected; must remain floating - not tied to any net including ground or VOUT. |
| 6 - BYP | Reference bypass | Connects to 0.1µF capacitor to GND to reduce output noise and improve PSRR; optional but recommended for low-noise apps. |
Key Features
| Feature | Design Value |
|---|---|
| µCap ceramic-stable design | Operates with ≥1µF X7R/X5R ceramic output capacitor - eliminates need for bulky tantalum or electrolytic caps. |
| Zero-off-mode shutdown | Draws only 0.5µA when EN ≤ 0.2V - ideal for battery-backed memory retention and low-power sleep states. |
| High PSRR with BYP pin | 85dB rejection at 1kHz achieved by adding 0.1µF to BYP - enables clean power in mixed-signal SoC environments. |
| Thermal and current protection | Integrated thermal shutdown and 300–900mA current limit prevent damage during overload or ambient temperature excursions. |
| Fast turn-on time | 30–100µs startup with 1µF COUT and 0.1µF CBYP - meets timing requirements for rapid system wake-up sequences. |
| Wide temperature range | Specified from –40°C to +125°C junction temperature - suitable for automotive infotainment and industrial edge nodes. |
Applications
| Cellular Phone Power | Fiber Optic Module Bias |
|---|---|
Use Scenario: Powers baseband processor I/O banks and RF front-end bias rails in 4G/LTE handsets operating from single-cell Li-ion (3.0–4.2V). IC Role / Device Role / Timing Role: LDO regulator providing clean, low-noise 2.0V supply to sensitive transceiver analog sections. Use Value: 60mV dropout allows >95% battery utilization down to 2.06V; 20µVrms noise prevents EVM degradation in QAM-modulated signals. | Use Scenario: Supplies bias voltage to laser diode drivers and TIAs in SFP/SFP+ optical transceivers. IC Role / Device Role / Timing Role: Low-noise post-regulator delivering stable 2.0V to analog front-end components requiring minimal ripple-induced jitter. Use Value: 85dB PSRR at 1kHz rejects switching noise from upstream DC/DC converters; ±1.0% accuracy maintains consistent laser bias current calibration. |
| Notebook PC Audio Codec | Portable Medical Sensor Node |
Use Scenario: Powers stereo audio codec ICs (e.g., Cirrus CS42L52) in ultrabook platforms where board area and thermal budget are constrained. IC Role / Device Role / Timing Role: Fixed-output LDO supplying clean 2.0V AVDD rail for DAC/ADC sections and headphone amplifiers. Use Value: Ceramic-capacitor stability reduces BOM count and PCB footprint; 90µA quiescent current minimizes standby power draw. | Use Scenario: Provides regulated 2.0V to low-power biosensor signal conditioning circuits (ECG, pulse oximetry) in wearable health monitors. IC Role / Device Role / Timing Role: Primary power source for analog front-end amplifiers and sigma-delta ADCs requiring ultra-low noise and high accuracy. Use Value: 20µVrms output noise preserves SNR in microvolt-level bio-signals; zero-off-mode enables multi-week battery life in intermittent-sampling modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2002E/TO | 250mA rated, 1.6µA quiescent current, SOT-23-3 package, no enable or BYP pin. | Lacks active enable and noise-reduction bypass functionality; limited to simpler, lower-current apps without dynamic power control. | Select when ultra-low IQ dominates over noise performance and enable control is unnecessary. |
| Torex XC6206P202MR-G | 150mA rated, 3µA IQ, SOT-25 package, no BYP pin, ±2% output accuracy. | Lower accuracy and no bypass option limits suitability for precision analog or high-PSRR applications. | Select for cost-sensitive, low-power always-on functions where 2% tolerance and absence of noise filtering are acceptable. |
Compared with MCP1700-2002E/TO and XC6206P202MR-G, the MIC5305-2.0YML-TR uniquely combines 60mV dropout, 20µVrms noise, active enable, and BYP-pin PSRR enhancement - making it optimal for noise-critical, dynamically powered portable subsystems.
Availability
MIC5305-2.0YML-TR is available at Aetrix Electronics and suitable for cellular phone power management, fiber optic module biasing, and notebook audio codec supplies requiring stable component supply across production lifecycles.
Supply support for MIC5305-2.0YML-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 was designed for ultra-compact, battery-powered portable electronics requiring high PSRR, low noise, and minimal board area - targeting cellular handsets, PDAs, and optical modules.
FAQ
What is the maximum input voltage rating for the MIC5305-2.0YML-TR?
The MIC5305-2.0YML-TR has an absolute maximum input voltage rating of 6V, but its specified operating input range is 2.25V to 5.5V. Exceeding 5.5V may cause permanent damage or violate safe operating area limits, even if within the 6V absolute maximum. Always maintain VIN ≤ 5.5V in normal operation to ensure reliability and parametric compliance per the June 2007 datasheet.
Does the MIC5305-2.0YML-TR require an external bypass capacitor on the BYP pin?
The MIC5305-2.0YML-TR does not require an external capacitor on the BYP pin for basic operation, but a 0.1µF ceramic capacitor to ground is strongly recommended to achieve 85dB PSRR at 1kHz and reduce output noise to 20µVrms. Omitting the BYP capacitor degrades noise performance and PSRR, particularly in noisy mixed-signal environments where the MIC5305-2.0YML-TR is commonly deployed.
Can the MIC5305-2.0YML-TR operate stably with no load connected to VOUT?
Yes, the MIC5305-2.0YML-TR remains stable and in regulation with zero load - a key differentiator from many legacy LDOs. This capability is explicitly confirmed in the Application Information section and enables use in CMOS RAM keep-alive circuits, real-time clock backups, and other always-on, ultra-low-current applications where the MIC5305-2.0YML-TR delivers 2.0V with ±1.0% accuracy even at 0mA load.
What is the thermal resistance (θJA) of the MIC5305-2.0YML-TR in its MLF package?
For the MIC5305-2.0YML-TR in the 6-pin 2mm × 2mm MLF® package, the junction-to-ambient thermal resistance (θJA) is 93°C/W under standard PCB mounting conditions with recommended minimum copper footprint. This value assumes proper soldering of the exposed thermal pad to a solid ground plane - failure to do so will significantly increase θJA and risk thermal shutdown under 150mA load.
Is the NC pin on the MIC5305-2.0YML-TR required to be left unconnected?
Yes, Pin 5 (NC) on the MIC5305-2.0YML-TR must remain unconnected - it is internally not bonded and has no electrical function. Connecting it to ground, VOUT, or any other net may compromise device reliability or parametric performance. The datasheet explicitly states "NC - No connection for fixed voltage parts" and confirms this pin is not to be used in the MLF-6 fixed-voltage configuration of the MIC5305-2.0YML-TR.
MIC5305-2.0YML-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):
- 2V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- 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)
MIC5305-2.0YML-TR FAQ
1.How can I place an order for MIC5305-2.0YML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5305-2.0YML-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 MIC5305-2.0YML-TR reliable?
The price and inventory of MIC5305-2.0YML-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5305-2.0YML-TR is usually 5 days.
3.What payment methods are accepted for MIC5305-2.0YML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5305-2.0YML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5305-2.0YML-TR?
MIC5305-2.0YML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5305-2.0YML-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 MIC5305-2.0YML-TR?
For technical support, including MIC5305-2.0YML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5305-2.0YML-TR requirements.
6.How does Aetrix verify that MIC5305-2.0YML-TR is sourced from the original manufacturer or authorized distributors?
All MIC5305-2.0YML-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 MIC5305-2.0YML-TR meets industry standards.
7.What is the process for return or replacement of MIC5305-2.0YML-TR?
All MIC5305-2.0YML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5305-2.0YML-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 MIC5305-2.0YML-TR part is unused and in its original packaging.
Return procedure for MIC5305-2.0YML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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