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Microchip Technology MIC5366-2.8YMT-TZ
- Part No.:
- MIC5366-2.8YMT-TZ
- Manufacturer:
- Microchip Technology
- Package:
- 4-UDFN Exposed Pad, 4-TMLF®
- Datasheet:
-
MIC5366-2.8YMT-TZ.pdf
- Description:
- IC REG LINEAR 2.8V 150MA 4TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:9,459
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Product details
Overview
MIC5366-2.8YMT-TZ from Micrel is a fixed-output 2.8V, 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 - optimized for space-constrained portable electronics requiring fast transient response and ultra-low off-state current.
For engineers reviewing the MIC5366-2.8YMT-TZ datasheet, MIC5366-2.8YMT-TZ pinout, MIC5366-2.8YMT-TZ application, or MIC5366-2.8YMT-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 high-density handheld PCB layouts.
Technical Context
The MIC5366-2.8YMT-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 circuit activates only when EN is low, sinking output load via an internal NFET (30Ω typical) to rapidly discharge downstream capacitance.
It delivers 70dB PSRR up to 1kHz and maintains stability with minimal 1µF X5R/X7R ceramic output capacitance, while ground current remains at 29µA under light load and drops to ≤1µA in shutdown - enabling battery-powered systems to meet stringent zero-power standby requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8V ±2% initial accuracy ensures reliable biasing of 2.8V I/O rails and RF front-end components without external feedback. |
| Max Output Current | 150mA guaranteed continuous output supports power delivery to baseband processors, camera modules, and GPS receivers. |
| Dropout Voltage | 155mV @ 150mA enables operation from 2.955V input - critical for single-cell Li-ion (3.0V min) and Li-polymer battery systems. |
| Quiescent Current | 29µA typical operating ground current minimizes battery drain during active mode in always-on sensor nodes. |
| PSRR | 70dB @ 1kHz suppresses switching noise from adjacent DC/DC converters, preserving signal integrity in mixed-signal SoC applications. |
| Auto-Discharge | Internal 30Ω NFET discharges VOUT when EN = low - eliminates need for external bleed resistors in power sequencing designs. |
| Enable Logic | Active-high EN with 1.2V VIH threshold ensures direct interface with 1.8V/2.8V/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 marked with ▲ identifier.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT | Regulated output node | Delivers stable 2.8V to load; requires ≥1µF ceramic capacitor to ground for stability. |
| GND | Power and signal reference | Must be connected to low-impedance PCB ground plane; ties to exposed heatsink pad for thermal performance. |
| EN | Enable control input | CMOS-compatible active-high signal; must not float - tie to VIN or microcontroller GPIO for controlled startup/shutdown. |
| VIN | Input supply rail | Accepts 2.5V–5.5V; requires 1µF ceramic bypass capacitor close to pin for high-frequency noise filtering. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | 1mm² board area (75% smaller than SC-70), enabling integration into <5mm² wearable PCBs and compact IoT modules. |
| Auto-discharge function | Eliminates external discharge circuitry - reduces BOM count and layout complexity in multi-rail power sequencing. |
| Low-noise regulation | 200µVRMS output noise (10Hz–100kHz) prevents interference with sensitive analog sensors and RF receivers. |
| Thermal & current protection | Integrated thermal shutdown and foldback current limiting prevent damage during overload or ambient temperature excursions. |
| Zero-off-mode current | ≤1µA shutdown current extends shelf life and battery runtime in devices with long idle periods (e.g., remote controls, asset trackers). |
Applications
| Mobile Phone Power Management | Digital Camera Sensor Biasing |
|---|---|
Use Scenario: Supplying clean 2.8V to image sensor I/O and AF motor drivers in slim smartphone camera modules. IC Role / Device Role / Timing Role: Primary LDO delivering regulated 2.8V with fast load transient response to handle burst-mode sensor readout. Use Value: 155mV dropout allows operation down to 2.955V input - extending usable battery voltage range by ~120mV vs. legacy 3.0V-only regulators. | Use Scenario: Powering CMOS image sensor analog front-end and ADC reference in portable digital cameras. IC Role / Device Role / Timing Role: Low-noise, low-PSRR LDO providing stable 2.8V bias unaffected by switching noise from main SoC DC/DC. Use Value: 70dB PSRR at 1kHz suppresses noise coupling from 1MHz buck converters, reducing image sensor pattern noise by >15dB. |
| GPS Receiver Module | Handheld PDA Core Logic |
Use Scenario: Delivering 2.8V to GPS RF frontend and baseband IC in battery-powered navigation devices. IC Role / Device Role / Timing Role: Enable-controlled LDO enabling precise power-up sequencing and rapid VOUT discharge during sleep transitions. Use Value: Auto-discharge (30Ω NFET) clears residual charge in <1ms - preventing false wake-ups and ensuring deterministic cold-start timing. | Use Scenario: Supplying 2.8V to application processor I/O banks and touch controller in palm-sized PDAs. IC Role / Device Role / Timing Role: High-accuracy LDO maintaining ±2% output tolerance across –40°C to +85°C operating range. Use Value: ±2% initial accuracy eliminates need for post-production calibration - reducing test time and manufacturing cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC5365-2.8YMT | No auto-discharge circuit; identical pinout, specs, and package. | Requires external discharge path if rapid VOUT decay is needed during shutdown. | Select MIC5365-2.8YMT only when auto-discharge is unnecessary and cost minimization is prioritized. |
| Torex XC6206P282MR-G | 200mA output, 120mV dropout @ 100mA, no enable pin, SOT-23-3 package. | Lacks enable control and auto-discharge; limited to always-on or simple ON/OFF via input rail. | Choose XC6206P282MR-G only for non-sequenced, space-tolerant designs where enable functionality is omitted. |
Compared with MIC5365-2.8YMT and XC6206P282MR-G, the MIC5366-2.8YMT-TZ uniquely combines enable control, auto-discharge, and ultra-small 1mm² footprint - making it the only option supporting compact, sequenced, low-quiescent-power portable systems without external discharge components.
Availability
MIC5366-2.8YMT-TZ is available at Aetrix Electronics and suitable for mobile phones, GPS modules, digital cameras, and handheld PDAs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC5366-2.8YMT-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 analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015.
The MIC5365/6 family was designed specifically for ultra-compact, battery-powered portable electronics demanding high PSRR, low quiescent current, and minimal PCB footprint - targeting next-generation handheld and wearable devices.
FAQ
What is the maximum input voltage rating for the MIC5366-2.8YMT-TZ?
The MIC5366-2.8YMT-TZ has an absolute maximum input voltage of 6V, but its specified operating input range is 2.5V to 5.5V. Exceeding 5.5V may cause permanent damage or violate safety margins defined in the Absolute Maximum Ratings table. Always maintain VIN within 2.5V–5.5V for reliable operation of the MIC5366-2.8YMT-TZ across its full temperature range.
Does the MIC5366-2.8YMT-TZ require an external capacitor on the EN pin?
No, the MIC5366-2.8YMT-TZ does not require an external capacitor on the EN pin. Its enable input uses CMOS logic with low leakage (<1µA), and the device specifies only that EN must not be left floating - it should be tied directly to VIN or a compatible GPIO. Adding capacitance to EN would delay turn-on/turn-off timing and is not recommended per the datasheet's Application Information section.
Can the MIC5366-2.8YMT-TZ operate stably with a 0.47µF output capacitor?
No, the MIC5366-2.8YMT-TZ requires a minimum 1µF ceramic output capacitor for guaranteed stability. The datasheet explicitly states "The MIC5365/6 requires an output capacitor of 1µF or greater to maintain stability" and warns that high-ESR or undersized capacitors may cause oscillation. Using 0.47µF violates the design specification and risks instability, especially under load transients - always use ≥1µF X5R/X7R ceramic capacitors for the MIC5366-2.8YMT-TZ.
What is the thermal resistance (θJA) of the MIC5366-2.8YMT-TZ in its 1mm × 1mm Thin MLF package?
The junction-to-ambient thermal resistance (θJA) for the MIC5366-2.8YMT-TZ in the 4-pin 1mm × 1mm Thin MLF package is 240°C/W, as specified in the Operating Ratings table. This value assumes standard JEDEC 2-layer board conditions; actual θJA improves with enhanced copper pour and thermal vias to inner ground planes. For worst-case thermal design at 150mA load and 3.6V input, this θJA yields a maximum ambient temperature of ~95°C before thermal shutdown.
Is the MIC5366-2.8YMT-TZ pin-compatible with the MIC5365-2.8YMT?
Yes, the MIC5366-2.8YMT-TZ is pin-compatible with the MIC5365-2.8YMT - both share identical 4-pin 1mm × 1mm Thin MLF pinout (VOUT, GND, EN, VIN), marking code (5M vs. 6M), and footprint. The only functional difference is the presence of the auto-discharge circuit in the MIC5366 variant; all other electrical characteristics, timing, and layout requirements match exactly for drop-in replacement where discharge functionality is required.
MIC5366-2.8YMT-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):
- 2.8V
- 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)
MIC5366-2.8YMT-TZ FAQ
1.How can I place an order for MIC5366-2.8YMT-TZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5366-2.8YMT-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 MIC5366-2.8YMT-TZ reliable?
The price and inventory of MIC5366-2.8YMT-TZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5366-2.8YMT-TZ is usually 5 days.
3.What payment methods are accepted for MIC5366-2.8YMT-TZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5366-2.8YMT-TZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5366-2.8YMT-TZ?
MIC5366-2.8YMT-TZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5366-2.8YMT-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 MIC5366-2.8YMT-TZ?
For technical support, including MIC5366-2.8YMT-TZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5366-2.8YMT-TZ requirements.
6.How does Aetrix verify that MIC5366-2.8YMT-TZ is sourced from the original manufacturer or authorized distributors?
All MIC5366-2.8YMT-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 MIC5366-2.8YMT-TZ meets industry standards.
7.What is the process for return or replacement of MIC5366-2.8YMT-TZ?
All MIC5366-2.8YMT-TZ units undergo pre-shipment inspection (PSI). If there is an issue with MIC5366-2.8YMT-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 MIC5366-2.8YMT-TZ part is unused and in its original packaging.
Return procedure for MIC5366-2.8YMT-TZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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