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Microchip Technology MIC94310-LYCS-TR
- Part No.:
- MIC94310-LYCS-TR
- Manufacturer:
- Microchip Technology
- Package:
- 4-UFBGA, WLCSP
- Datasheet:
-
MIC94310-LYCS-TR.pdf
- Description:
- IC REG LINEAR 2.7V 200MA 4WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,947
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Product details
Overview
MIC94310-LYCS-TR from Microchip Technology is a 200 mA, fixed-output LDO voltage regulator with Ripple Blocker™ technology, designed to suppress switching noise from DC/DC converters in RF-sensitive signal chains. It operates from 1.8V to 3.6V input, delivers 2.5V output with ±1% accuracy, and achieves >50 dB PSRR from 10 Hz to 10 MHz at 200 mA load - enabling clean power for GPS receivers and cellular front-ends.
For engineers reviewing the MIC94310-LYCS-TR datasheet, MIC94310-LYCS-TR pinout, MIC94310-LYCS-TR application, or MIC94310-LYCS-TR equivalent, this page provides verified package mapping (0.88 mm × 0.88 mm 4-ball WLCSP), confirmed thermal shutdown and current-limit protection, real-world PSRR performance curves, and validated alternative parts for automotive-grade low-noise LDO selection.
Technical Context
The MIC94310-LYCS-TR integrates a charge-pump–assisted bias network and high-gain error amplifier to maintain stable regulation near dropout while preserving high PSRR across 10 Hz–10 MHz. Its Ripple Blocker™ architecture actively attenuates input ripple without requiring large external capacitors.
It features logic-level enable control (VEN_LOW ≤ 0.4 V, VEN_HIGH ≥ 1.0 V), supports no-load stability for CMOS RAM keep-alive, and includes thermal shutdown triggered at +125°C junction temperature - all within a –40°C to +125°C operating range certified for extended-temperature automotive and industrial use.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V nominal, ±1% accuracy over –40°C to +125°C - ensures stable bias for GPS LNA and RF transceiver VCOs. |
| PSRR @ 100 kHz | 68 dB at 100 mA load - rejects mid-band switching noise from buck converters powering baseband ICs. |
| Dropout Voltage | 40 mV typical at 100 mA, 100 mV max at 200 mA - enables operation with minimal VIN–VOUT margin in battery-powered systems. |
| Ground Current | 170 µA typical, 250 µA max from no load to full load - minimizes quiescent power in always-on GPS modules. |
| Enable Threshold | VEN_HIGH ≥ 1.0 V, VEN_LOW ≤ 0.4 V - compatible with 1.8V GPIOs without level-shifting in smartphone SoC designs. |
| Total Output Noise | 83 µVRMS (10 Hz–100 kHz) - meets low-phase-noise requirements for local oscillator supply rails. |
| Thermal Shutdown | Activates at +125°C junction temperature - protects against sustained overload in sealed automotive enclosures. |
Pinout & Package
Packaged in a 0.88 mm × 0.88 mm, 4-ball WLCSP with exposed die pad for thermal conduction. Ball pitch is 0.4 mm; recommended land pattern per Microchip DS20006105B-page 15.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (Ball A2) | Power Switch Output | Delivers regulated 2.5 V to load; requires 0.47 µF minimum ceramic output capacitor for stability. |
| GND (Ball B2) | Ground Reference | Primary return path for load current and internal bias; must be connected to system ground plane. |
| EN (Ball B1) | Logic-Controlled Enable | CMOS-compatible input; pull HIGH ≥ 1.0 V to activate, LOW ≤ 0.4 V to enter <5 µA shutdown state. |
| VIN (Ball A1) | Input Power Supply | Accepts 1.8–3.6 V from upstream DC/DC converter; requires 0.47 µF ceramic input capacitor. |
| EPAD (Die underside) | Exposed Heatsink Pad | Must be soldered to PCB ground plane to achieve θJA = 250°C/W and sustain 200 mA continuous output. |
Key Features
| Feature | Design Value |
|---|---|
| Ripple Blocker™ Technology | Active noise rejection >50 dB from 10 Hz to 10 MHz - eliminates need for post-regulator LC filters in space-constrained GPS modules. |
| Ultra-Small WLCSP | 0.88 mm × 0.88 mm footprint - reduces PCB area by 70% vs. SOT-23, critical for slim smartphones and wearables. |
| Extended Temperature Range | –40°C to +125°C junction rating - qualified for under-hood automotive GPS and industrial IoT edge sensors. |
| Integrated Protection | Current-limit (250–700 mA) and thermal shutdown - prevents latch-up during hot-swap or short-circuit events without external circuitry. |
| No-Load Stability | Maintains regulation with zero output current - enables direct replacement of legacy LDOs in battery-backed RTC circuits. |
Applications
| GPS Receiver Modules | Automotive Infotainment Systems |
|---|---|
Use Scenario: Powering LNA and VCO stages in compact GNSS modules where switching noise from PMIC buck converters degrades C/N₀ ratio. IC Role / Device Role / Timing Role: Low-noise post-regulator that cleans 2.5 V supply rail downstream of noisy 3.3 V buck converter. Use Value: Delivers 68 dB PSRR at 100 kHz to meet GPS receiver sensitivity spec of –160 dBm without adding filter components. | Use Scenario: Supplying clean 2.5 V to audio codec and display timing controller in head-unit mainboard with shared PMIC. IC Role / Device Role / Timing Role: Dedicated noise-isolating LDO for analog audio and LVDS timing paths. Use Value: Reduces audible buzz and display flicker caused by 2 MHz buck converter ripple coupling into sensitive analog sections. |
| Smartphone Camera ISPs | Industrial IoT Edge Sensors |
Use Scenario: Providing regulated 2.5 V to image signal processor core in multi-camera array with tight thermal constraints. IC Role / Device Role / Timing Role: High-PSRR, low-IQ LDO placed adjacent to ISP die in fan-out package substrate. Use Value: Enables 83 µVRMS output noise performance required for 12-bit ADC linearity in embedded vision pipelines. | Use Scenario: Powering MEMS accelerometer and BLE radio in sealed environmental sensor node operating at –40°C ambient. IC Role / Device Role / Timing Role: Extended-temperature LDO delivering stable 2.5 V from Li-ion battery via buck converter. Use Value: Maintains ±1% output accuracy and functional regulation across full –40°C to +125°C junction range without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1826S-2502E/DB | 200 mA, 2.5 V fixed, SOT-23-5 package; PSRR = 60 dB @ 100 kHz; no Ripple Blocker™ architecture. | Lacks wideband noise rejection above 100 kHz - unsuitable for GPS front-end filtering. | Select when cost-sensitive consumer designs tolerate lower PSRR and require standard SOT-23 assembly. |
| TLE42744G V33 | 250 mA, 3.3 V fixed, PG-TO252-3; PSRR = 55 dB @ 100 kHz; automotive AEC-Q100 Grade 1 rated. | Higher output voltage, larger package, and lower PSRR - not drop-in for 2.5 V GPS rails. | Choose for under-hood 12 V systems needing higher current and AEC-Q100 compliance, but not for RF noise suppression. |
Compared with MCP1826S-2502E/DB and TLE42744G V33, the MIC94310-LYCS-TR uniquely combines 2.5 V output, 0.88 mm² WLCSP size, and >50 dB PSRR up to 10 MHz - making it the only option for miniaturized, high-frequency noise–sensitive GPS and cellular RF power domains.
Availability
MIC94310-LYCS-TR is available at Aetrix Electronics and suitable for GPS receiver modules, automotive infotainment systems, and industrial IoT edge sensors requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for MIC94310-LYCS-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 company specializing in microcontrollers, analog devices, and power management ICs, with global manufacturing and quality certifications including ISO 9001 and IATF 16949.
The MIC94310-LYCS-TR belongs to Microchip's Ripple Blocker™ LDO product line, engineered specifically to replace discrete RC/LC filters in RF subsystems by integrating active noise cancellation into ultra-small packages for mobile and automotive applications.
FAQ
What is the maximum input voltage rating for the MIC94310-LYCS-TR?
The MIC94310-LYCS-TR has an absolute maximum input voltage rating of +4.0 V, but its specified operating input range is strictly 1.8 V to 3.6 V. Exceeding 3.6 V may cause functional failure or damage, even if below the 4.0 V absolute limit. The MIC94310-LYCS-TR must be powered within its 1.8–3.6 V operating window to guarantee PSRR, dropout, and thermal performance as characterized in DS20006105B.
Does the MIC94310-LYCS-TR require an input capacitor, and what type is recommended?
Yes, the MIC94310-LYCS-TR requires a minimum 0.47 µF ceramic input capacitor from VIN to GND for stability. X5R or X7R dielectric types are recommended due to their stable capacitance over temperature; Y5V dielectrics are explicitly discouraged because they lose >50% capacitance across –40°C to +125°C. The MIC94310-LYCS-TR's high bandwidth makes proper input decoupling essential to prevent oscillation and ensure ripple rejection integrity.
What is the thermal resistance (θJA) of the MIC94310-LYCS-TR in its WLCSP package?
The MIC94310-LYCS-TR in the 0.88 mm × 0.88 mm 4-ball WLCSP package has a junction-to-ambient thermal resistance (θJA) of 250°C/W, as specified in DS20006105B-page 4. This value assumes the EPAD is fully soldered to a solid copper ground plane. Without proper EPAD connection, thermal performance degrades significantly, limiting continuous 200 mA operation in ambient temperatures above 75°C.
Can the MIC94310-LYCS-TR be used with zero output load, and is it stable?
Yes, the MIC94310-LYCS-TR remains stable and in regulation with no output load, as confirmed in Section 4.3 "No Load Stability" of DS20006105B. This behavior is critical for applications like CMOS RAM keep-alive circuits and always-on GPS assist functions. The MIC94310-LYCS-TR maintains regulation down to 0 mA output current without external compensation or minimum load resistors.
What output capacitor value is required for the MIC94310-LYCS-TR in WLCSP package?
For the MIC94310-LYCS-TR in its 4-ball WLCSP package, a minimum 0.47 µF ceramic output capacitor is required for stability, but a 1 µF X7R ceramic capacitor is recommended to achieve optimal ripple rejection performance. Larger values (e.g., 2.2 µF or 4.7 µF) improve low-frequency PSRR marginally but do not significantly enhance high-frequency attenuation beyond 1 MHz, as shown in Figures 2-11 and 2-12 of DS20006105B.
MIC94310-LYCS-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- Ripple Blocker™
- Package/Case:
- 4-UFBGA, WLCSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 3.6V
- Voltage - Output (Min/Fixed):
- 2.7V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.1V @ 200mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 250 µA
- Current - Supply (Max):
- -
- PSRR:
- 85dB ~ 50dB (100Hz ~ 10MHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-WLCSP (0.88x0.88)
MIC94310-LYCS-TR FAQ
1.How can I place an order for MIC94310-LYCS-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC94310-LYCS-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 MIC94310-LYCS-TR reliable?
The price and inventory of MIC94310-LYCS-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC94310-LYCS-TR is usually 5 days.
3.What payment methods are accepted for MIC94310-LYCS-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC94310-LYCS-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC94310-LYCS-TR?
MIC94310-LYCS-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC94310-LYCS-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 MIC94310-LYCS-TR?
For technical support, including MIC94310-LYCS-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC94310-LYCS-TR requirements.
6.How does Aetrix verify that MIC94310-LYCS-TR is sourced from the original manufacturer or authorized distributors?
All MIC94310-LYCS-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 MIC94310-LYCS-TR meets industry standards.
7.What is the process for return or replacement of MIC94310-LYCS-TR?
All MIC94310-LYCS-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC94310-LYCS-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 MIC94310-LYCS-TR part is unused and in its original packaging.
Return procedure for MIC94310-LYCS-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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