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Microchip Technology MIC5366-1.5YMT-TZ
- Part No.:
- MIC5366-1.5YMT-TZ
- Manufacturer:
- Microchip Technology
- Package:
- 4-UDFN Exposed Pad, 4-TMLF®
- Datasheet:
-
MIC5366-1.5YMT-TZ.pdf
- Description:
- IC REG LINEAR 1.5V 150MA 4TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:3,561
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Product details
Overview
MIC5366-1.5YMT-TZ from Micrel is a fixed-output 1.5V, 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 - designed for space-constrained portable electronics requiring fast transient response and ultra-low off-state current.
For engineers reviewing the MIC5366-1.5YMT-TZ datasheet, MIC5366-1.5YMT-TZ pinout, MIC5366-1.5YMT-TZ application, or MIC5366-1.5YMT-TZ equivalent, key selection criteria include enable-active-high logic compatibility, 2.5V–5.5V input range, 1µF ceramic capacitor stability, thermal shutdown protection, and auto-discharge functionality for rapid output voltage decay during power-down sequences.
Technical Context
The MIC5366-1.5YMT-TZ implements a CMOS-based LDO architecture with internal P-channel pass transistor, enabling low dropout and high PSRR (70dB @ 1kHz). Its enable pin controls both regulation state and activation of an integrated NFET discharge path (30Ω typical) when pulled low.
It operates across –40°C to +125°C junction temperature, supports stable regulation with only 1µF X5R/X7R ceramic output capacitance, and maintains ±3% total output voltage accuracy over full temperature and load range while drawing ≤1µA in shutdown mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±2% initial accuracy; ensures precise biasing for low-voltage logic cores and RF ICs without external feedback. |
| Max Output Current | 150mA guaranteed; sufficient to power single-core microcontrollers, sensor interfaces, or memory I/O rails in handheld devices. |
| Dropout Voltage | 155mV @ 150mA; enables operation from 1.65V input, supporting Li-ion battery discharge down to ~3.0V system supply. |
| 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 upstream power domains. |
| Auto-Discharge | 30Ω NFET path activated when EN = low; discharges output capacitance rapidly (<1ms for 1µF), preventing unintended device wake-up. |
| Input Voltage Range | 2.5V to 5.5V; compatible with single-cell Li-ion, dual-cell alkaline, or regulated 3.3V/5V system rails. |
Pinout & Package
Package: 4-pin 1mm × 1mm Thin MLF (RoHS-compliant, NiPdAu lead finish, exposed heatsink pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VOUT) | Regulated output node | Delivers stable 1.5V to load; requires ≥1µF ceramic capacitor to ground for stability. |
| 2 (GND) | Power ground reference | Common return path for input, output, and internal circuitry; must be connected directly to low-impedance PCB ground plane. |
| 3 (EN) | Enable control input | Active-high CMOS input; >1.2V enables regulation, <0.2V disables output and activates auto-discharge; must not float. |
| 4 (VIN) | Unregulated input supply | Accepts 2.5V–5.5V input; requires 1µF ceramic decoupling capacitor placed adjacent to pin. |
| EP (Heatsink Pad) | Thermal conduction path | Internally connected to GND; soldered to PCB copper pour to improve thermal dissipation (θJA = 240°C/W). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | 1mm² board area (1mm × 1mm Thin MLF); reduces PCB space by 75% vs. SC-70-5, critical for wearables and compact modules. |
| Auto-discharge function | Integrated 30Ω NFET discharge path activated on EN low; eliminates need for external bleed resistor in power-gated systems. |
| Low-noise regulation | 200µVRMS output noise (10Hz–100kHz); suitable for noise-sensitive analog circuits like ADC references or RF synthesizers. |
| Robust protection | Thermal shutdown and foldback current limiting prevent damage during overload or ambient temperature extremes. |
| Capacitor flexibility | Stable with 1µF X5R/X7R ceramic capacitors only; eliminates need for tantalum or electrolytic output caps, improving reliability and lifetime. |
Applications
| Mobile Phone Baseband | Digital Camera Sensor Bias |
|---|---|
Use Scenario: Powering baseband processor I/O banks during active call mode and deep-sleep states. IC Role / Device Role / Timing Role: Low-noise, enable-controlled 1.5V supply rail with rapid discharge to prevent leakage-induced wake events. Use Value: Enables reliable low-power sleep modes via sub-1µA shutdown current and deterministic discharge timing. | Use Scenario: Providing clean 1.5V bias to CMOS image sensor analog front-end during exposure and readout cycles. IC Role / Device Role / Timing Role: High-PSRR LDO isolating sensor analog section from noisy digital domain switching transients. Use Value: Maintains signal integrity with 70dB ripple rejection, reducing image noise and fixed-pattern artifacts. |
| GPS Receiver Front-End | Portable Medical Monitor MCU Core |
Use Scenario: Supplying 1.5V to GPS RF front-end LNA and mixer stages in battery-powered asset trackers. IC Role / Device Role / Timing Role: Ultra-low-noise, thermally robust voltage source operating across automotive-grade temperature range. Use Value: Delivers consistent RF gain and phase noise performance despite wide input voltage swing (2.5V–5.5V) and ambient variation. | Use Scenario: Regulating 1.5V core voltage for ARM Cortex-M0+ MCU in handheld ECG or pulse oximeter units. IC Role / Device Role / Timing Role: Precision, low-quiescent-current LDO supporting continuous sensor sampling and Bluetooth LE transmission bursts. Use Value: Extends battery life with 29µA operating current and zero-off-mode shutdown during idle intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC5365-1.5YMT | No auto-discharge circuit; identical pinout, specs, and package; EN pin disables output but leaves VOUT floating. | Suitable where controlled discharge is unnecessary or handled externally; lower BOM cost if discharge not required. | Select MIC5365-1.5YMT only when system-level discharge is managed via separate circuitry or software-controlled load switching. |
| Torex XC6219B152MR-G | 1.5V fixed output, 150mA, 250mV dropout @ 150mA, no auto-discharge, SOT-25 package (2.9mm × 2.8mm). | Larger footprint and higher dropout limit minimum input voltage to ≥1.75V; lacks integrated discharge path. | Choose XC6219B152MR-G only if board layout accommodates larger SOT-25 and auto-discharge is implemented externally. |
Compared with MIC5365-1.5YMT, the MIC5366-1.5YMT-TZ adds essential auto-discharge for safe power sequencing in multi-rail systems; versus XC6219B152MR-G, it delivers 40% smaller footprint, 38% lower dropout, and integrated discharge - making it optimal for miniaturized, battery-critical designs requiring deterministic power-down behavior.
Availability
MIC5366-1.5YMT-TZ is available at Aetrix Electronics and suitable for mobile phones, digital cameras, GPS receivers, and portable medical monitors requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC5366-1.5YMT-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 power management, analog, and RF solutions before its acquisition by Microchip Technology in 2015.
The MIC5365/6 family was developed by Micrel to address ultra-compact, high-PSRR LDO needs in battery-powered portable electronics - emphasizing minimal board area, low quiescent current, and fast enable/disable response.
FAQ
What is the maximum input voltage rating for the MIC5366-1.5YMT-TZ?
The MIC5366-1.5YMT-TZ has an absolute maximum input voltage rating of 6V, but its recommended operating input voltage range is 2.5V to 5.5V. Exceeding 5.5V may trigger internal protection or cause permanent damage. The MIC5366-1.5YMT-TZ is commonly used with single-cell Li-ion (up to 4.2V) or regulated 3.3V/5V supplies within this safe window.
Does the MIC5366-1.5YMT-TZ require an external discharge resistor?
No, the MIC5366-1.5YMT-TZ integrates an auto-discharge NFET (30Ω typical) activated automatically when the EN pin is driven low. This eliminates the need for an external bleed resistor, simplifying design and reducing component count. The MIC5366-1.5YMT-TZ discharges a 1µF output capacitor in under 1ms, ensuring rapid and predictable power-down behavior.
Can the MIC5366-1.5YMT-TZ operate stably with no load connected?
Yes, the MIC5366-1.5YMT-TZ remains stable and in regulation with zero load current - a feature critical for applications like CMOS RAM keep-alive circuits or always-on sensor bias rails. Unlike many LDOs, it does not require a minimum load for stability, and its 29µA quiescent current ensures minimal power draw in no-load conditions.
What ceramic capacitor dielectric types are recommended for use with the MIC5366-1.5YMT-TZ?
X5R and X7R dielectric ceramic capacitors are explicitly recommended for both input and output filtering with the MIC5366-1.5YMT-TZ. These offer stable capacitance over temperature (±15% for X7R), low ESR, and reliable performance. Y5V and Z5U dielectrics are discouraged due to severe capacitance loss (>50%) over temperature, which risks instability and poor transient response in the MIC5366-1.5YMT-TZ.
Is the MIC5366-1.5YMT-TZ pin-compatible with other variants in the MIC5365/6 family?
Yes, the MIC5366-1.5YMT-TZ shares identical 4-pin 1mm × 1mm Thin MLF pinout and footprint with all MIC5365/6-YMT variants (e.g., MIC5365-1.5YMT, MIC5366-3.3YMT). Pin 1 = VOUT, Pin 2 = GND, Pin 3 = EN, Pin 4 = VIN. This allows direct substitution within the same package variant, provided functional requirements (e.g., auto-discharge) align with the target application.
MIC5366-1.5YMT-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):
- 1.5V
- 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:
- 4-TMLF® (1x1)
MIC5366-1.5YMT-TZ FAQ
1.How can I place an order for MIC5366-1.5YMT-TZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5366-1.5YMT-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 MIC5366-1.5YMT-TZ reliable?
The price and inventory of MIC5366-1.5YMT-TZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5366-1.5YMT-TZ is usually 5 days.
3.What payment methods are accepted for MIC5366-1.5YMT-TZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5366-1.5YMT-TZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5366-1.5YMT-TZ?
MIC5366-1.5YMT-TZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5366-1.5YMT-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 MIC5366-1.5YMT-TZ?
For technical support, including MIC5366-1.5YMT-TZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5366-1.5YMT-TZ requirements.
6.How does Aetrix verify that MIC5366-1.5YMT-TZ is sourced from the original manufacturer or authorized distributors?
All MIC5366-1.5YMT-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 MIC5366-1.5YMT-TZ meets industry standards.
7.What is the process for return or replacement of MIC5366-1.5YMT-TZ?
All MIC5366-1.5YMT-TZ units undergo pre-shipment inspection (PSI). If there is an issue with MIC5366-1.5YMT-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 MIC5366-1.5YMT-TZ part is unused and in its original packaging.
Return procedure for MIC5366-1.5YMT-TZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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