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Microchip Technology MIC5366-1.0YMT-TZ
- Part No.:
- MIC5366-1.0YMT-TZ
- Manufacturer:
- Microchip Technology
- Package:
- 4-UDFN Exposed Pad, 4-TMLF®
- Datasheet:
-
MIC5366-1.0YMT-TZ.pdf
- Description:
- IC REG LINEAR 1V 150MA 4TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:9,810
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Product details
Overview
MIC5366-1.0YMT-TZ from Micrel is a fixed-output 1.0V, 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 full load, and 29µA quiescent current - optimized for space-constrained, battery-powered portable electronics requiring fast transient response and ultra-low off-state current.
For engineers reviewing the MIC5366-1.0YMT-TZ datasheet, MIC5366-1.0YMT-TZ pinout, MIC5366-1.0YMT-TZ application, or MIC5366-1.0YMT-TZ equivalent, this page delivers verified specifications, validated pin functions, confirmed thermal and PSRR performance, and real-world substitution guidance for portable power rail design.
Technical Context
The MIC5366-1.0YMT-TZ implements a CMOS-based LDO architecture with active-high enable control and an integrated NFET auto-discharge circuit activated only when EN is low, ensuring rapid VOUT discharge without external components. Its internal bandgap reference and error amplifier deliver tight regulation across –40°C to +125°C junction temperature.
It operates from 2.5V to 5.5V input, supports stable regulation with only 1µF ceramic output capacitance, and achieves 70dB PSRR at low frequencies while maintaining <1µs turn-on time under 150mA load - critical for noise-sensitive RF and digital baseband rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.0V ±2% (initial), ±3% over –40°C to +125°C - ensures compatibility with 1.0V core logic and memory I/O rails. |
| Max Output Current | 150mA guaranteed - sufficient for powering single-core microcontrollers, sensor interfaces, or low-power FPGAs. |
| Dropout Voltage | 155mV @ 150mA - enables operation from 1.155V minimum input, supporting single-cell Li-ion or Li-poly backup supplies. |
| Quiescent Current | 29µA typical - minimizes standby power loss in always-on subsystems like RTC or wake-up controllers. |
| PSRR | 70dB @ low frequency - suppresses switching noise from adjacent DC/DC converters feeding shared input rails. |
| Auto-Discharge | 30Ω NFET path enabled only when EN = low - discharges output to <100mV within ~1ms, preventing back-powering of upstream circuits. |
| Thermal Shutdown | Integrated protection triggers at TJ ≥ 150°C - prevents damage during sustained overload or poor PCB heatsinking. |
Pinout & Package
Package: 4-pin 1mm × 1mm Thin MLF (RoHS-compliant, NiPdAu lead finish, exposed heatsink pad). Pin 1 identified by triangle marker (▲) on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT (Pin 1) | Regulated output terminal | Delivers stable 1.0V to load; requires 1µF ceramic capacitor to ground for stability. |
| GND (Pin 2) | Power ground reference | Return path for load and quiescent current; must be connected directly to low-impedance ground plane. |
| EN (Pin 3) | Active-high enable input | Logic high (≥1.2V) enables regulation; logic low (≤0.2V) disables output and activates auto-discharge. |
| VIN (Pin 4) | Input supply terminal | Accepts 2.5V–5.5V input; requires 1µF ceramic decoupling capacitor to GND close to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | 1mm² board area - reduces PCB real estate by 75% vs. SC-70-5, enabling dense wearable and IoT designs. |
| Auto-discharge function | Integrated 30Ω NFET activated only during shutdown - eliminates need for external bleed resistor and saves BOM cost. |
| Zero-off-mode current | <1µA shutdown current - preserves battery life in long-duration sleep modes without compromising wake-up latency. |
| Stable with minimal capacitance | Guaranteed stability with 1µF X5R/X7R ceramic output cap - simplifies layout and avoids costly high-ESR alternatives. |
| High PSRR & low noise | 70dB ripple rejection + 200µVRMS output noise (10Hz–100kHz) - maintains clean power for ADCs, PLLs, and RF receivers. |
Applications
| Mobile Phone Baseband | Digital Camera Sensor Bias |
|---|---|
Use Scenario: Powering 1.0V application processor cores and cache SRAM during active and deep-sleep states. IC Role / Device Role / Timing Role: Primary low-noise core LDO with fast enable/disable sequencing and auto-discharge to prevent leakage paths during suspend-to-RAM. Use Value: Enables sub-10µA system standby current and eliminates external discharge circuitry, reducing component count and PCB area. | Use Scenario: Supplying bias voltage to CMOS image sensor analog front-end and column ADC drivers. IC Role / Device Role / Timing Role: Low-noise, high-PSRR post-regulator isolating sensitive analog circuitry from noisy digital supply domains. Use Value: Maintains <200µVRMS noise floor and >70dB supply rejection, preserving SNR and dynamic range in low-light imaging. |
| GPS Receiver RF Front-End | Portable Medical Sensor Node |
Use Scenario: Delivering clean 1.0V power to GPS LNA, mixer, and VCO bias circuits in handheld navigation devices. IC Role / Device Role / Timing Role: Ultra-stable, low-dropout regulator with rapid transient response to handle burst-mode RF transmission current spikes. Use Value: Sustains regulation during 150mA pulsed loads with <10mV droop and recovers in <1µs, preventing GPS signal lock loss. | Use Scenario: Powering ultra-low-power biosensor ASICs and BLE transceivers in disposable patch monitors. IC Role / Device Role / Timing Role: Primary system LDO with zero-off-mode and auto-discharge, synchronized to MCU sleep/wake cycles via EN pin. Use Value: Extends coin-cell battery life to >12 months by limiting shutdown current to <1µA and eliminating passive discharge paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC5365-1.0YMT | No auto-discharge circuit; identical pinout, package, and electrical specs otherwise. | Suitable where output discharge is handled externally or not required. | Select MIC5365-1.0YMT only if auto-discharge is unnecessary and cost minimization is prioritized. |
| Torex XC6206P102MR-G | 1.0V fixed, 150mA, but no enable pin; requires external ON/OFF control via input switch. | Limited to always-on or input-switched applications; lacks precise enable timing and auto-discharge. | Choose XC6206P102MR-G only for simple, non-sequenced power rails where EN control and VOUT discharge are not needed. |
Compared with MIC5365-1.0YMT and XC6206P102MR-G, the MIC5366-1.0YMT-TZ uniquely combines pin-compatible enable control, guaranteed auto-discharge, and zero-off-mode current - making it the only option among the three that fully supports advanced power sequencing and leakage-free shutdown in portable systems.
Availability
MIC5366-1.0YMT-TZ is available at Aetrix Electronics and suitable for mobile phone baseband, digital camera sensor bias, GPS receiver RF front-end, and portable medical sensor node applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC5366-1.0YMT-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, 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, minimal quiescent current, and integrated power sequencing features in sub-1mm² packages.
FAQ
What is the maximum input voltage rating for the MIC5366-1.0YMT-TZ?
The MIC5366-1.0YMT-TZ has an absolute maximum input voltage rating of 6V, but its recommended operating input voltage range is 2.5V to 5.5V. Operation above 5.5V risks permanent damage even if within the absolute maximum limit, and operation below 2.5V may fail to maintain regulation at 150mA load due to insufficient headroom relative to the 155mV dropout specification. Always verify VIN margin against worst-case VOUT tolerance and load conditions in final design.
Does the MIC5366-1.0YMT-TZ require an external discharge resistor?
No, the MIC5366-1.0YMT-TZ does not require an external discharge resistor because it integrates an auto-discharge NFET with 30Ω on-resistance that activates automatically when the EN pin is driven low. This internal circuit safely discharges the output capacitor to <100mV within approximately 1ms, eliminating leakage paths and simplifying BOM. External resistors are unnecessary and would degrade discharge speed and efficiency.
Can the MIC5366-1.0YMT-TZ operate stably with less than 1µF output capacitance?
No, the MIC5366-1.0YMT-TZ is specified and characterized for stable operation only with ≥1µF ceramic output capacitance (X5R or X7R dielectric). Using smaller values - even high-quality 0.47µF capacitors - risks oscillation, excessive overshoot during load transients, or failure to regulate under full 150mA load. The internal compensation is optimized for 1µF; deviation voids stability guarantees and may cause system-level reset or data corruption.
What is the thermal resistance (θJA) of the MIC5366-1.0YMT-TZ package?
The MIC5366-1.0YMT-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 PCB layout: direct connection of the exposed heatsink pad to a ≥1cm² internal copper pour, and use of ≥2 thermal vias under the pad. Without these, θJA degrades significantly - potentially exceeding 300°C/W - limiting safe continuous output current to <100mA at 70°C ambient.
Is the MIC5366-1.0YMT-TZ pin-compatible with the MIC5365-1.0YMT variant?
Yes, the MIC5366-1.0YMT-TZ is fully pin-compatible with the MIC5365-1.0YMT in the same 4-pin 1mm × 1mm Thin MLF package: both share identical pinout (VOUT, GND, EN, VIN), footprint, and solder reflow profile. The only functional difference is the presence of the auto-discharge circuit in the MIC5366-1.0YMT-TZ; all other electrical, thermal, and mechanical specifications match. No PCB redesign is required when upgrading from MIC5365-1.0YMT to MIC5366-1.0YMT-TZ.
MIC5366-1.0YMT-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):
- 1V
- 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:
- 4-TMLF® (1x1)
MIC5366-1.0YMT-TZ FAQ
1.How can I place an order for MIC5366-1.0YMT-TZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5366-1.0YMT-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 MIC5366-1.0YMT-TZ reliable?
The price and inventory of MIC5366-1.0YMT-TZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5366-1.0YMT-TZ is usually 5 days.
3.What payment methods are accepted for MIC5366-1.0YMT-TZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5366-1.0YMT-TZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5366-1.0YMT-TZ?
MIC5366-1.0YMT-TZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5366-1.0YMT-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 MIC5366-1.0YMT-TZ?
For technical support, including MIC5366-1.0YMT-TZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5366-1.0YMT-TZ requirements.
6.How does Aetrix verify that MIC5366-1.0YMT-TZ is sourced from the original manufacturer or authorized distributors?
All MIC5366-1.0YMT-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 MIC5366-1.0YMT-TZ meets industry standards.
7.What is the process for return or replacement of MIC5366-1.0YMT-TZ?
All MIC5366-1.0YMT-TZ units undergo pre-shipment inspection (PSI). If there is an issue with MIC5366-1.0YMT-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 MIC5366-1.0YMT-TZ part is unused and in its original packaging.
Return procedure for MIC5366-1.0YMT-TZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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