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Microchip Technology MIC5366-2.85YMT-TZ
- Part No.:
- MIC5366-2.85YMT-TZ
- Manufacturer:
- Microchip Technology
- Package:
- 4-UDFN Exposed Pad, 4-TMLF®
- Datasheet:
-
MIC5366-2.85YMT-TZ.pdf
- Description:
- IC REG LINEAR 2.85V 150MA 4TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:4,801
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Product details
Overview
MIC5366-2.85YMT-TZ from Micrel is a fixed-output 2.85V, 150mA low-dropout linear regulator in a 4-pin 1mm × 1mm Thin MLF package, featuring auto-discharge on disable, ±2% initial output accuracy, 155mV dropout at 150mA, and 29µA quiescent current - deployed in portable electronics requiring ultra-low power and rapid output discharge during sleep mode.
For engineers reviewing the MIC5366-2.85YMT-TZ datasheet, MIC5366-2.85YMT-TZ pinout, MIC5366-2.85YMT-TZ application, or MIC5366-2.85YMT-TZ equivalent, key selection criteria include enable-active-high logic compatibility, 2.5V–5.5V input range, thermal shutdown protection, and stable operation with 1µF ceramic output capacitors in space-constrained battery-powered designs.
Technical Context
The MIC5366-2.85YMT-TZ integrates a CMOS-based pass element with internal feedback control to maintain regulation across –40°C to +125°C junction temperature. Its auto-discharge function uses an internal NFET (30Ω typical) between VOUT and GND, activated only when EN is low - enabling fast output voltage decay without external circuitry.
It delivers high PSRR (70dB up to 1kHz, 65dB up to 10kHz) and excellent load transient response due to high-bandwidth error amplifier design. Ground current remains stable at 29µA (typ) from no-load to full 150mA, and drops to ≤1µA in shutdown - critical for maintaining system-level standby power budgets.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.85V ±2% initial accuracy ensures reliable biasing of 2.8V–3.0V I/O domains in mobile SoCs and PMICs. |
| Max Output Current | 150mA guaranteed - sufficient to power RF transceivers, sensor interfaces, or low-power microcontrollers without derating. |
| Dropout Voltage | 155mV @ 150mA - enables operation from 3.0V supply while sustaining 2.85V output, maximizing battery runtime in single-cell Li-ion systems. |
| Quiescent Current | 29µA typical - minimizes no-load power loss in always-on subsystems such as real-time clocks or wake-up controllers. |
| PSRR | 70dB @ 1kHz - suppresses switching noise from adjacent DC/DC converters, preserving signal integrity in mixed-signal audio or RF sections. |
| Auto-Discharge Resistance | 30Ω typical (MIC5366 only) - discharges 1µF output capacitor from 2.85V to <100mV in <32µs, meeting fast-wake timing requirements. |
| Enable Threshold | Logic-high ≥1.2V, logic-low ≤0.2V - compatible with 1.8V/3.3V GPIOs without level-shifting. |
Pinout & Package
Package: 4-pin 1mm × 1mm Thin MLF (RoHS-compliant, NiPdAu lead finish, exposed heatsink pad). Pin 1 identified by ▲ mark.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT | Regulated output node | Delivers stable 2.85V; requires ≥1µF X5R/X7R ceramic capacitor to ground for stability. |
| GND | Power and signal reference | Must be connected directly to low-impedance PCB ground plane; ties to exposed heatsink pad for thermal performance. |
| EN | Active-high digital control input | Pulled high to enable regulation; pulled low to disable and activate auto-discharge; must not float. |
| VIN | Unregulated input supply | Accepts 2.5V–5.5V; requires 1µF ceramic input capacitor to ground for EMI filtering and loop stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | 1mm² board area - 75% smaller than SC-70-5, enabling placement in tight spaces behind displays or near RF modules. |
| Auto-discharge circuit | Integrated 30Ω NFET activated only during EN = low - eliminates need for external bleed resistor and saves BOM cost. |
| Low-noise operation | 200µVRMS (10Hz–100kHz) - avoids interference in precision analog front-ends or ADC reference supplies. |
| Robust protection | Thermal shutdown + foldback current limiting - prevents damage during output short or overload without latch-up. |
| Capacitor flexibility | Stable with 1µF ceramic output caps (X5R/X7R); no ESR requirements - simplifies layout and reduces component count. |
Applications
| Mobile Phone Baseband | Digital Camera Sensor Bias |
|---|---|
Use Scenario: Powers baseband processor I/O rails during active and deep-sleep modes in LTE smartphones. IC Role / Device Role / Timing Role: LDO providing clean, fast-discharging 2.85V supply to interface logic with strict <100µs wake-up latency. Use Value: Auto-discharge ensures VOUT collapses before processor exit from retention state, preventing bus contention or leakage paths. | Use Scenario: Supplies image sensor analog core and timing controller in compact point-and-shoot cameras. IC Role / Device Role / Timing Role: Low-noise, low-quiescent-current regulator delivering stable 2.85V under varying illumination-driven load profiles. Use Value: 70dB PSRR rejects noise from flash LED drivers and autofocus motors, reducing image sensor pattern noise. |
| GPS Receiver Front-End | Portable Medical Pulse Oximeter |
Use Scenario: Powers GPS RF front-end IC and crystal oscillator in handheld navigation devices. IC Role / Device Role / Timing Role: Ultra-low-noise LDO supplying 2.85V to sensitive LNA and downconverter stages. Use Value: 200µVRMS output noise avoids degradation of GPS C/N₀ ratio and improves position fix accuracy. | Use Scenario: Regulates power to optical sensor and ADC in battery-operated pulse oximeters. IC Role / Device Role / Timing Role: Precision 2.85V source with ±2% accuracy and zero-off-mode current for multi-day continuous monitoring. Use Value: 29µA quiescent current extends battery life beyond 7 days on coin-cell; thermal shutdown prevents overheating during skin-contact use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC5365-2.85YMT-TZ | No auto-discharge; identical pinout, specs except EN-controlled discharge path | Suitable where fast VOUT decay is unnecessary and lowest possible BOM cost is prioritized | Select when system does not require controlled output discharge during sleep transitions. |
| Torex XC6206P285MR-G | 2.85V, 150mA, SOT-25 package; no auto-discharge; 300mV dropout @ 150mA; 15µA IQ | Larger footprint (2.9mm²), higher dropout limits usable input range in low-VIN scenarios | Choose if board space allows SOT-25 and lower quiescent current outweighs need for auto-discharge. |
Compared with MIC5365-2.85YMT-TZ, the MIC5366-2.85YMT-TZ adds essential auto-discharge for fast wake-up systems, while versus XC6206P285MR-G, it offers superior dropout and integrated discharge - making it optimal for miniaturized, battery-sensitive portable designs demanding both efficiency and timing control.
Availability
MIC5366-2.85YMT-TZ is available at Aetrix Electronics and suitable for mobile phones, digital cameras, GPS receivers, and portable medical devices requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.
Supply support for MIC5366-2.85YMT-TZ 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 high-performance analog and power management ICs, acquired by Microchip Technology in 2015.
The MIC5366 series belongs to Micrel's high-density LDO family designed specifically for ultra-portable electronics where board area, power efficiency, and fast dynamic response are critical constraints.
FAQ
What is the maximum input voltage rating for MIC5366-2.85YMT-TZ?
The MIC5366-2.85YMT-TZ has an absolute maximum input voltage of 6V, but its recommended operating input range is 2.5V to 5.5V. Exceeding 5.5V may trigger internal protection or degrade long-term reliability. The device is commonly used with 3.3V or 3.6V Li-ion battery sources, where the 155mV dropout ensures regulation down to ~2.95V battery voltage.
Does MIC5366-2.85YMT-TZ require an external discharge resistor?
No, MIC5366-2.85YMT-TZ does not require an external discharge resistor. It integrates an auto-discharge NFET (30Ω typical) that activates automatically when the EN pin is driven low, discharging the output capacitor rapidly. This eliminates BOM cost and PCB area otherwise needed for discrete discharge solutions - a key differentiator from MIC5365 variants.
Can MIC5366-2.85YMT-TZ operate stably with a 0.47µF output capacitor?
No - MIC5366-2.85YMT-TZ requires a minimum 1µF ceramic output capacitor (X5R or X7R dielectric) for guaranteed stability across temperature and load. Using 0.47µF risks high-frequency oscillation due to phase margin degradation. The datasheet explicitly specifies "stable with 1µF ceramic output capacitors" and warns against high-ESR or low-capacitance alternatives.
What is the thermal resistance (θJA) of the MIC5366-2.85YMT-TZ package?
The MIC5366-2.85YMT-TZ uses the 4-pin 1mm × 1mm Thin MLF package with a junction-to-ambient thermal resistance (θJA) of 240°C/W under standard JEDEC 2-layer board conditions. This value assumes proper connection of the exposed heatsink pad to a thermal copper plane - failure to do so increases θJA significantly and limits safe continuous output current.
Is MIC5366-2.85YMT-TZ pin-compatible with MIC5365-2.85YMT-TZ?
Yes, MIC5366-2.85YMT-TZ is pin-compatible with MIC5365-2.85YMT-TZ in the same 4-pin Thin MLF package: both share identical VIN, GND, EN, and VOUT pin assignments and mechanical footprint. The only functional difference is the presence of the auto-discharge circuit in the MIC5366 variant - no PCB layout change is required when upgrading from MIC5365 to MIC5366 for enhanced system wake-up behavior.
MIC5366-2.85YMT-TZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 4-UDFN Exposed Pad, 4-TMLF®
- 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):
- 0.31V @ 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:
- 4-TMLF® (1x1)
MIC5366-2.85YMT-TZ FAQ
1.How can I place an order for MIC5366-2.85YMT-TZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5366-2.85YMT-TZ 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 MIC5366-2.85YMT-TZ reliable?
The price and inventory of MIC5366-2.85YMT-TZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5366-2.85YMT-TZ is usually 5 days.
3.What payment methods are accepted for MIC5366-2.85YMT-TZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5366-2.85YMT-TZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5366-2.85YMT-TZ?
MIC5366-2.85YMT-TZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5366-2.85YMT-TZ 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 MIC5366-2.85YMT-TZ?
For technical support, including MIC5366-2.85YMT-TZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5366-2.85YMT-TZ requirements.
6.How does Aetrix verify that MIC5366-2.85YMT-TZ is sourced from the original manufacturer or authorized distributors?
All MIC5366-2.85YMT-TZ 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 MIC5366-2.85YMT-TZ meets industry standards.
7.What is the process for return or replacement of MIC5366-2.85YMT-TZ?
All MIC5366-2.85YMT-TZ units undergo pre-shipment inspection (PSI). If there is an issue with MIC5366-2.85YMT-TZ, 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 MIC5366-2.85YMT-TZ part is unused and in its original packaging.
Return procedure for MIC5366-2.85YMT-TZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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