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Microchip Technology MIC5366-2.6YC5-TR
- Part No.:
- MIC5366-2.6YC5-TR
- Manufacturer:
- Microchip Technology
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MIC5366-2.6YC5-TR.pdf
- Description:
- IC REG LINEAR 2.6V 150MA SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,001
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Product details
Overview
MIC5366-2.6YC5-TR from Micrel is a fixed-output 2.6V, 150mA low-dropout linear regulator in SC-70-5 package with auto-discharge functionality, 2% initial output accuracy, 155mV dropout at full load, and 29µA quiescent current-designed for power management in space-constrained portable electronics such as GPS modules and handheld PDAs.
For engineers reviewing the MIC5366-2.6YC5-TR datasheet, MIC5366-2.6YC5-TR pinout, MIC5366-2.6YC5-TR application, or MIC5366-2.6YC5-TR equivalent, this page delivers verified specifications, thermal performance data, enable logic behavior, auto-discharge resistance value, and real-world layout guidance for battery-powered systems requiring ultra-low standby current and fast transient response.
Technical Context
The MIC5366-2.6YC5-TR implements a CMOS-based LDO architecture with active-high enable control and integrated NFET auto-discharge circuitry activated only when EN is low. Its internal reference and error amplifier deliver ±2% output accuracy over –40°C to +125°C junction temperature range.
It operates across 2.5V–5.5V input voltage range, supports stable regulation with 1µF ceramic output capacitors (X5R/X7R), and achieves 70dB PSRR at low frequencies while maintaining <125µs turn-on time under 150mA load-enabling clean supply rail generation in noise-sensitive RF and mixed-signal subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.6V ±2% initial accuracy; maintains regulation across –40°C to +125°C ambient. |
| Max Output Current | 150mA guaranteed continuous output; current limit trips at 200–550mA to protect against short-circuit faults. |
| Dropout Voltage | 155mV at 150mA load; enables operation with minimal VIN–VOUT headroom (e.g., 2.755V min input at 2.6V out). |
| Quiescent Current | 29µA typical at light load; drops to ≤1µA in shutdown (EN ≤ 0.2V), enabling multi-week battery life in always-on sensors. |
| PSRR | 70dB at low frequency; suppresses ripple from noisy DC-DC stages feeding sensitive analog/RF circuits. |
| Auto-Discharge Resistance | 30Ω typical when disabled (VEN = 0V); rapidly discharges output capacitance to prevent residual voltage hold-up. |
| Thermal Resistance θJA | 256.5°C/W for SC-70-5 package; limits max ambient to ~95°C at 150mA with 3.6V→2.6V drop (0.12W dissipation). |
Pinout & Package
SC-70-5 package: 1.25mm × 1.75mm footprint, 0.65mm pitch, RoHS-compliant NiPdAu lead finish, exposed heatsink pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VOUT) | Regulated output node | Delivers stable 2.6V to load; requires ≥1µF X5R/X7R ceramic capacitor to ground for stability. |
| 2 (GND) | Power ground reference | Low-impedance return path for load and quiescent current; must connect directly to PCB ground plane. |
| 3 (EN) | Enable control input | Active-high CMOS input; 1.2V min logic high, 0.2V max logic low; must not float-tie to VOUT or GND via resistor if unused. |
| 4 (VIN) | Unregulated input supply | Accepts 2.5V–5.5V; requires 1µF ceramic input capacitor close to pin for high-frequency noise filtering. |
| 5 (NC) | No-connect terminal | Internally unconnected; no electrical function-leave unconnected on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-discharge circuit | 30Ω NFET discharge path activated only during EN = low state, eliminating external bleed resistors in battery backup rails. |
| Ultra-small SC-70-5 package | 1.25mm × 1.75mm footprint-75% smaller than standard SOT-23, enabling dense portable PCB layouts. |
| Stable with 1µF ceramic output cap | Eliminates need for large tantalum or aluminum electrolytics; reduces BOM count and improves reliability in shock/vibe environments. |
| Zero-off-mode shutdown | Draws ≤1µA total current when disabled, extending shelf life of coin-cell–powered IoT edge nodes. |
| High PSRR (70dB) | Rejects switching noise from upstream DC-DC converters, preserving signal integrity in ADC reference and RF front-end supplies. |
Applications
| GPS Module Power Supply | Digital Camera Sensor Bias |
|---|---|
Use Scenario: Powers GNSS baseband IC and RF frontend in compact handheld GPS receivers operating from single Li-ion cell. IC Role / Device Role / Timing Role: Primary 2.6V LDO delivering clean, low-noise bias to GPS correlator and LNA stages. Use Value: 155mV dropout allows >95% battery utilization down to 2.755V input; 70dB PSRR prevents clock jitter from DC-DC ripple. |
Use Scenario: Supplies image sensor analog core and column ADC in low-power digital cameras. IC Role / Device Role / Timing Role: Low-noise 2.6V regulator for precision analog pixel readout circuitry. Use Value: 29µA quiescent current minimizes standby drain; auto-discharge clears residual voltage before sensor reset cycles. |
| PDA Application Processor I/O Rail | Handheld Medical Diagnostic Display |
Use Scenario: Generates 2.6V I/O supply for ARM-based PDA SoC interfacing with touch controller and SD card. IC Role / Device Role / Timing Role: Fixed-output LDO decoupling high-speed digital interfaces from noisy system rails. Use Value: 150mA capability supports burst-mode SD transfers; SC-70-5 size fits tight board area near SoC BGA. |
Use Scenario: Powers OLED display driver IC in portable ECG or pulse oximeter units powered by CR2032 coin cell. IC Role / Device Role / Timing Role: Ultra-low-IQ regulator maintaining display bias during long sleep intervals. Use Value: ≤1µA shutdown current enables >6-month shelf life; 2% accuracy ensures consistent display brightness calibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC5365-2.6YC5-TR | No auto-discharge; identical pinout, package, and electrical specs except discharge circuit omission. | Suitable where rapid output discharge is unnecessary-e.g., non-battery-backed systems with controlled power sequencing. | Select when lowest BOM cost is prioritized and external discharge path is acceptable. |
| Torex XC6206P262MR-G | Same 2.6V output, 150mA rating, SOT-23-5 package; 35µA IQ, 220mV dropout @150mA, no auto-discharge. | Lacks integrated discharge; higher dropout limits usable input range in deep-discharge battery scenarios. | Choose for second-source availability where Micrel legacy support is constrained. |
Compared with MIC5365-2.6YC5-TR and XC6206P262MR-G, the MIC5366-2.6YC5-TR uniquely provides integrated 30Ω auto-discharge without increasing footprint or bill-of-materials-critical for space-limited, battery-dependent devices requiring fast rail collapse during sleep transitions.
Availability
MIC5366-2.6YC5-TR is available at Aetrix Electronics and suitable for GPS modules, handheld medical diagnostics, portable imaging systems, and PDA power management requiring stable component supply with guaranteed long-term sourcing.
Supply support for MIC5366-2.6YC5-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 high-performance analog and power management ICs before its acquisition by Microchip Technology in 2015.
The MIC5365/6 family was designed specifically for ultra-compact, battery-operated portable electronics demanding high PSRR, low IQ, and rapid enable/disable response-targeting mobile handsets, GPS, and imaging subsystems.
FAQ
What is the maximum input voltage rating for the MIC5366-2.6YC5-TR?
The MIC5366-2.6YC5-TR 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 cause permanent damage. For reliable operation with a 3.6V Li-ion battery, the MIC5366-2.6YC5-TR provides sufficient headroom (1.0V) to maintain regulation across the full discharge curve down to ~2.755V.
Does the MIC5366-2.6YC5-TR require an external pull-up resistor on the EN pin?
No, the MIC5366-2.6YC5-TR does not require an external pull-up on EN-it features internal CMOS logic with defined thresholds (0.2V max logic low, 1.2V min logic high). However, the EN pin must never be left floating; it should be tied directly to VIN for always-on operation or to GND via a switch or microcontroller GPIO. Leaving EN unconnected risks indeterminate output behavior.
How does the auto-discharge feature of the MIC5366-2.6YC5-TR function in practice?
When the EN pin is driven low (≤0.2V), the MIC5366-2.6YC5-TR activates an internal 30Ω NFET between VOUT and GND, actively discharging external output capacitance. This eliminates reliance on slow passive RC decay, reducing discharge time from seconds to milliseconds-critical for systems needing rapid power-state transitions or preventing unintended wake-up from residual voltage.
Can the MIC5366-2.6YC5-TR operate stably with a 0.47µF output capacitor?
No-the MIC5366-2.6YC5-TR is specified and characterized for stable operation only with ≥1µF ceramic output capacitance (X5R/X7R dielectric). Using 0.47µF violates the minimum stability requirement and may cause oscillation or poor transient response. The datasheet explicitly states "stable with 1µF ceramic output capacitors" and warns against high-ESR types like Y5V or Z5U.
What thermal derating applies to the MIC5366-2.6YC5-TR in SC-70-5 package at 150mA load?
With θJA = 256.5°C/W and 150mA load at 3.6V input → 2.6V output, power dissipation is ~0.12W. At TJ(max) = 125°C, the maximum allowable ambient temperature is ~95°C. Above this, thermal shutdown may activate. To sustain full load in warmer environments, reduce input voltage, add copper pour under the SC-70-5 pad, or lower output current-no internal thermal foldback is implemented beyond shutdown.
MIC5366-2.6YC5-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):
- 2.6V
- 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
MIC5366-2.6YC5-TR FAQ
1.How can I place an order for MIC5366-2.6YC5-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5366-2.6YC5-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 MIC5366-2.6YC5-TR reliable?
The price and inventory of MIC5366-2.6YC5-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5366-2.6YC5-TR is usually 5 days.
3.What payment methods are accepted for MIC5366-2.6YC5-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5366-2.6YC5-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5366-2.6YC5-TR?
MIC5366-2.6YC5-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5366-2.6YC5-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 MIC5366-2.6YC5-TR?
For technical support, including MIC5366-2.6YC5-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5366-2.6YC5-TR requirements.
6.How does Aetrix verify that MIC5366-2.6YC5-TR is sourced from the original manufacturer or authorized distributors?
All MIC5366-2.6YC5-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 MIC5366-2.6YC5-TR meets industry standards.
7.What is the process for return or replacement of MIC5366-2.6YC5-TR?
All MIC5366-2.6YC5-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5366-2.6YC5-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 MIC5366-2.6YC5-TR part is unused and in its original packaging.
Return procedure for MIC5366-2.6YC5-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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