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Microchip Technology MIC5366-2.5YC5-TR
- Part No.:
- MIC5366-2.5YC5-TR
- Manufacturer:
- Microchip Technology
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MIC5366-2.5YC5-TR.pdf
- Description:
- IC REG LINEAR 2.5V 150MA SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,542
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Product details
Overview
MIC5366-2.5YC5-TR from Micrel is a fixed-output 2.5V, 150mA low-dropout linear regulator in SC-70-5 package with auto-discharge functionality activated on enable pin deactivation. It delivers ±2% initial output accuracy, 155mV dropout at full load, and 29µA quiescent current-enabling stable power for ultra-low-power portable electronics such as GPS modules and handheld imaging subsystems.
For engineers reviewing the MIC5366-2.5YC5-TR datasheet, MIC5366-2.5YC5-TR pinout, MIC5366-2.5YC5-TR application, or MIC5366-2.5YC5-TR equivalent, key selection criteria include its 2.5V fixed output, SC-70-5 thermal resistance (256.5°C/W), auto-discharge NFET (30Ω), and guaranteed operation from –40°C to +125°C junction temperature.
Technical Context
The MIC5366-2.5YC5-TR integrates a CMOS-based active-high enable input and an internal auto-discharge NFET that activates when EN is pulled low, rapidly discharging the output capacitor. Its bandgap reference and error amplifier deliver tight regulation across line (2.5V–5.5V VIN), load (0–150mA), and temperature (–40°C to +125°C) variations.
Designed for high PSRR (70dB up to 1kHz), it maintains clean output under noisy supply conditions using only 1µF ceramic input and output capacitors. Thermal shutdown and foldback current limiting protect against fault conditions without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±2% initial accuracy; ensures precise biasing for 2.5V logic rails and analog sensors. |
| Max Output Current | 150mA guaranteed; supports moderate-current peripherals like camera ISPs or RF front-end ICs. |
| Dropout Voltage | 155mV @ 150mA; enables operation with only 2.655V input, critical for single-cell Li-ion (3.0–4.2V) or coin-cell systems. |
| Quiescent Current | 29µA typical; minimizes standby power loss in always-on subsystems such as real-time clocks or wake-up controllers. |
| PSRR | 70dB @ 1kHz; suppresses switching noise from DC/DC converters feeding the LDO input. |
| Auto-Discharge Resistance | 30Ω (MIC5366 only); discharges output capacitance quickly upon disable, preventing residual voltage from interfering with downstream sequencing. |
| Operating Temp Range | –40°C to +125°C junction; qualified for automotive infotainment displays and industrial handheld terminals. |
| Input Voltage Range | 2.5V to 5.5V; compatible with common battery chemistries and intermediate rail voltages. |
Pinout & Package
SC-70-5 package: 1.25mm × 1.75mm footprint, 0.65mm pitch, exposed pad not present. Compatible with standard reflow profiles and automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Supply Input | Accepts 2.5V–5.5V input; requires 1µF X5R/X7R ceramic decoupling capacitor placed within 2mm. |
| 2 (GND) | Ground Reference | Primary return path for load and quiescent current; must connect directly to low-impedance ground plane. |
| 3 (EN) | Enable Control | Active-high CMOS input; drives high (>1.2V) to enable, low (<0.2V) to disable and activate auto-discharge. |
| 4 (VOUT) | Regulated Output | Delivers stable 2.5V ±2%; requires 1µF ceramic output capacitor with ESR < 100mΩ for stability. |
| 5 (NC) | No Connect | Not internally bonded; must remain unconnected and unstubbed on PCB to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-Discharge Circuit | 30Ω NFET activated during shutdown eliminates hold-up voltage on VOUT, enabling safe power sequencing in multi-rail systems. |
| Ultra-Low Quiescent Current | 29µA typical ensures <1µW standby power draw-critical for battery-backed memory retention and sensor wake-up circuits. |
| Stable with 1µF Ceramic Capacitors | Eliminates need for large tantalum or aluminum electrolytics, reducing BOM cost and board area in space-constrained designs. |
| High PSRR (70dB @ 1kHz) | Rejects ripple from upstream switching regulators, preserving signal integrity in ADC reference and RF local oscillator supplies. |
| Thermal Shutdown & Current Limit | Foldback current limiting and 150°C junction thermal cutoff prevent damage during short-circuit or overtemperature events without external protection. |
| ±2% Initial Accuracy | Meets tight tolerance requirements for precision analog circuitry such as DAC references and sensor excitation sources. |
Applications
| GPS Module Power | Digital Camera Sensor Bias |
|---|---|
Use Scenario: Powers GPS baseband processor and RF frontend in compact wearable navigation devices. IC Role / Device Role / Timing Role: Primary 2.5V LDO supplying core logic and analog blocks; auto-discharge prevents backfeed into disabled GPS RF section during sleep mode. Use Value: 155mV dropout allows operation down to 2.655V input-extending runtime on partially discharged Li-poly cells. | Use Scenario: Supplies image sensor analog front-end and timing controller in smartphone auxiliary cameras. IC Role / Device Role / Timing Role: Low-noise 2.5V source for pixel readout circuitry; high PSRR suppresses switching noise from adjacent PMIC rails. Use Value: 70dB PSRR at 1kHz reduces supply-induced fixed-pattern noise in raw image data. |
| Handheld PDA Core Rail | Industrial Barcode Scanner Logic |
Use Scenario: Provides regulated 2.5V to ARM Cortex-M microcontroller and touch controller in ruggedized PDAs. IC Role / Device Role / Timing Role: Main system LDO with enable control synchronized to display backlight PWM; zero-off-mode draws <1µA during deep sleep. Use Value: 29µA quiescent current extends battery life beyond 72 hours in standby without compromising wake latency. | Use Scenario: Powers laser driver IC and decode ASIC in battery-operated warehouse barcode scanners. IC Role / Device Role / Timing Role: Stable 2.5V rail for high-speed serial interface and flash memory controller; auto-discharge clears VOUT before reset assertion. Use Value: 30Ω discharge path reduces VOUT decay time to <1ms-ensuring reliable reset timing across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC5365-2.5YC5-TR | No auto-discharge circuit; otherwise identical pinout, specs, and package. | Suitable where output discharge is unnecessary or handled externally. | Select when lower BOM count is prioritized and no fast VOUT decay is required. |
| Torex XC6206P252MR-G | 2.5V fixed, 150mA, SOT-23-5; 300mV dropout @ 150mA; no enable or auto-discharge. | Limited to always-on or simple ON/OFF applications without sequencing needs. | Choose for cost-sensitive designs where 155mV vs. 300mV dropout margin is acceptable and enable control is omitted. |
Compared with MIC5365-2.5YC5-TR, the MIC5366-2.5YC5-TR adds essential auto-discharge for clean power-down sequencing; versus XC6206P252MR-G, it provides superior dropout performance and integrated enable control-making it optimal for battery-powered systems requiring precise rail management.
Availability
MIC5366-2.5YC5-TR is available at Aetrix Electronics and suitable for GPS modules, digital camera sensor biasing, handheld PDA core rails, industrial barcode scanner logic, and portable medical diagnostic devices requiring stable component supply across extended temperature ranges.
Supply support for MIC5366-2.5YC5-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 MIC5365/6 family was designed specifically for space-constrained, battery-powered portable electronics requiring high PSRR, ultra-low quiescent current, and fast enable/disable response-with the MIC5366 variant adding integrated auto-discharge for robust power sequencing.
FAQ
What is the dropout voltage specification for MIC5366-2.5YC5-TR at full 150mA load?
The MIC5366-2.5YC5-TR has a dropout voltage of 155mV at 150mA output current and VOUT ≥ 2.8V. For the 2.5V version, the datasheet specifies 180mV max at 150mA (VOUT < 2.8V condition). This value is measured as the VIN–VOUT differential at which output drops 2% below nominal-ensuring predictable minimum input headroom for MIC5366-2.5YC5-TR in low-voltage battery applications.
Does MIC5366-2.5YC5-TR require external capacitors, and what type is recommended?
Yes, MIC5366-2.5YC5-TR requires both input and output capacitors. A 1µF X5R or X7R ceramic capacitor (0402 size) is mandatory at both VIN and VOUT pins for stability. Y5V dielectrics are explicitly discouraged due to severe capacitance loss over temperature. The MIC5366-2.5YC5-TR design is optimized for low-ESR ceramics and does not support high-ESR types like tantalum or aluminum electrolytic.
How does the auto-discharge feature function in MIC5366-2.5YC5-TR, and what is its resistance value?
The auto-discharge feature in MIC5366-2.5YC5-TR activates automatically when the EN pin is driven low, connecting an internal NFET between VOUT and GND. This NFET has a typical on-resistance of 30Ω, enabling rapid discharge of output capacitance. The MIC5366-2.5YC5-TR datasheet confirms this behavior is exclusive to MIC5366 variants-MIC5365 parts lack this circuit entirely.
What is the maximum junction temperature and thermal resistance for MIC5366-2.5YC5-TR in SC-70-5 package?
The MIC5366-2.5YC5-TR has a maximum junction temperature of +125°C and a junction-to-ambient thermal resistance (θJA) of 256.5°C/W in the SC-70-5 package. This value assumes standard JEDEC 2-layer board layout. Derating is required above +85°C ambient; for example, at 150mA and 155mV dropout, power dissipation is ~23mW, allowing safe operation up to ~95°C ambient before reaching TJ(max).
Is MIC5366-2.5YC5-TR RoHS-compliant and lead-free?
Yes, MIC5366-2.5YC5-TR is RoHS-compliant and lead-free. The ordering information explicitly states "Pb-Free" for all SC-70-5 variants including MIC5366-2.5YC5*, and the package uses NiPdAu lead finish. Micrel's documentation confirms the SC-70-5 variant meets EU RoHS Directive 2011/65/EU requirements without exemptions.
MIC5366-2.5YC5-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.38V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 39 µA
- Current - Supply (Max):
- -
- PSRR:
- 80dB ~ 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:
- SC-70-5
MIC5366-2.5YC5-TR FAQ
1.How can I place an order for MIC5366-2.5YC5-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5366-2.5YC5-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 MIC5366-2.5YC5-TR reliable?
The price and inventory of MIC5366-2.5YC5-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5366-2.5YC5-TR is usually 5 days.
3.What payment methods are accepted for MIC5366-2.5YC5-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5366-2.5YC5-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5366-2.5YC5-TR?
MIC5366-2.5YC5-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5366-2.5YC5-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 MIC5366-2.5YC5-TR?
For technical support, including MIC5366-2.5YC5-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5366-2.5YC5-TR requirements.
6.How does Aetrix verify that MIC5366-2.5YC5-TR is sourced from the original manufacturer or authorized distributors?
All MIC5366-2.5YC5-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 MIC5366-2.5YC5-TR meets industry standards.
7.What is the process for return or replacement of MIC5366-2.5YC5-TR?
All MIC5366-2.5YC5-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5366-2.5YC5-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 MIC5366-2.5YC5-TR part is unused and in its original packaging.
Return procedure for MIC5366-2.5YC5-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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