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Microchip Technology MIC5365-1.8YD5-T5
- Part No.:
- MIC5365-1.8YD5-T5
- Manufacturer:
- Microchip Technology
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MIC5365-1.8YD5-T5.pdf
- Description:
- IC REG LIN 1.8V 150MA TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,920
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Product details
Overview
MIC5365-1.8YD5-T5 from Micrel is a fixed-output 1.8V, 150mA low-dropout linear regulator in a 5-pin TSOT23 package, delivering ±2% initial output accuracy, 155mV dropout at full load, and 29µA quiescent current - optimized for space-constrained portable electronics requiring stable low-voltage biasing of RF ICs, microcontrollers, or sensors.
For engineers reviewing the MIC5365-1.8YD5-T5 datasheet, MIC5365-1.8YD5-T5 pinout, MIC5365-1.8YD5-T5 application, or MIC5365-1.8YD5-T5 equivalent, key selection criteria include its 2.5V–5.5V input range, zero-off-mode shutdown (0.05µA), PSRR of 70dB at 1kHz, and guaranteed stability with 1µF ceramic output capacitors.
Technical Context
The MIC5365-1.8YD5-T5 implements a CMOS-based LDO architecture with active-high enable control and internal thermal shutdown/current limit protection. It operates across –40°C to +125°C junction temperature and maintains regulation down to zero load without external compensation.
Its high PSRR (70dB @ 1kHz) and low 200µVRMS output noise (10Hz–100kHz) support noise-sensitive analog and RF circuitry. The device draws only 29µA ground current under light load and drops to 0.05µA in shutdown - critical for battery longevity in always-on subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±2% initial accuracy; ensures reliable logic-level supply for 1.8V I/O domains. |
| Max Output Current | 150mA guaranteed; sufficient for powering core logic blocks or sensor interfaces in handheld devices. |
| Dropout Voltage | 155mV @ 150mA; enables operation from 2.0V input when VOUT = 1.8V, extending battery runtime. |
| Quiescent Current | 29µA typical; minimizes standby power loss in sleep-mode applications. |
| PSRR | 70dB @ 1kHz; suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Stability | Guaranteed with ≥1µF ceramic output capacitor; eliminates need for bulk electrolytic or complex compensation. |
| Enable Logic | Active-high CMOS input; compatible with standard GPIOs and requires no pull-up for default-off behavior. |
Pinout & Package
Package: 5-Pin TSOT23 (Thin Small Outline Transistor), RoHS-compliant, 1.6mm × 2.9mm footprint, exposed heatsink pad (EP) for thermal relief.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Supply Input | Accepts 2.5V–5.5V unregulated input; must be decoupled with ≥1µF ceramic capacitor to GND. |
| 2 (GND) | Ground Reference | Primary return path for load and quiescent current; connects to EP for optimal thermal performance. |
| 3 (EN) | Enable Control | CMOS-compatible active-high input; <0.2V = OFF (0.05µA shutdown), >1.2V = ON; must not float. |
| 4 (NC) | No Connect | Internally unconnected; left floating on PCB - no routing or soldering required. |
| 5 (VOUT) | Regulated Output | Delivers stable 1.8V ±2%; requires ≥1µF ceramic capacitor to GND for stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 29µA typical operating current enables multi-week battery life in always-on sensor nodes. |
| Zero-off-mode shutdown | 0.05µA max shutdown current eliminates parasitic drain during system sleep states. |
| High PSRR at low frequency | 70dB rejection at 1kHz prevents noise coupling from PMIC switchers into sensitive analog rails. |
| Small-footprint TSOT23 package | 1.6mm × 2.9mm outline saves >75% board area vs. legacy SOT23-5, easing dense layout in wearables. |
| Full protection suite | Integrated thermal shutdown and current limiting prevent damage during overloads or ambient overheating. |
Applications
| Mobile Phone Baseband | Digital Camera Image Sensor |
|---|---|
Use Scenario: Powering 1.8V I/O and core logic of baseband processors during active call and idle modes. IC Role / Device Role / Timing Role: Primary low-noise voltage source for digital signal processing blocks and memory interfaces. Use Value: 155mV dropout extends usable battery voltage range; 29µA quiescent current minimizes standby drain. | Use Scenario: Supplying clean 1.8V bias to CMOS image sensor I/O banks and ADC reference circuits. IC Role / Device Role / Timing Role: Low-noise post-regulator isolating sensor rail from noisy main PMIC outputs. Use Value: 70dB PSRR and 200µVRMS noise prevent fixed-pattern noise and SNR degradation in captured images. |
| GPS Receiver Module | Portable Medical Monitor |
Use Scenario: Delivering regulated 1.8V to GPS baseband ICs and RF front-end controllers in handheld navigation units. IC Role / Device Role / Timing Role: Stable low-voltage supply enabling precise timing recovery and low-jitter clock generation. Use Value: ±2% output accuracy ensures consistent oscillator biasing; 1µF-stable design simplifies BOM and layout. | Use Scenario: Powering ultra-low-power microcontroller peripherals and analog front-end sensors in battery-operated patient monitors. IC Role / Device Role / Timing Role: Always-on LDO maintaining real-time clock and sensor bias during deep-sleep cycles. Use Value: Zero-off-mode shutdown (0.05µA) preserves battery charge over weeks of intermittent use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-1802E/TO | 30µA quiescent current; 6V max input; 250mA output; TO-92 package (larger footprint). | Higher output current but larger through-hole package; less suitable for ultra-compact PCBs. | Select when higher output current margin is needed and board space allows TO-92 mounting. |
| AP2112K-1.8TRG1 | 60µA quiescent current; 150mA output; 6V max input; SOT23-5 package; no zero-off-mode. | Higher shutdown current (1µA vs. 0.05µA); lacks ultra-low-off-state capability for long-term battery hold. | Select when cost sensitivity outweighs ultra-low shutdown current requirements. |
Compared with MCP1700-1802E/TO and AP2112K-1.8TRG1, the MIC5365-1.8YD5-T5 provides superior shutdown efficiency and smaller footprint - making it optimal for space- and battery-life-critical portable designs where 150mA output suffices.
Availability
MIC5365-1.8YD5-T5 is available at Aetrix Electronics and suitable for mobile phones, digital cameras, GPS receivers, and portable medical monitors requiring stable component supply with tight voltage tolerance and minimal board area consumption.
Supply support for MIC5365-1.8YD5-T5 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 family was designed specifically for portable electronics demanding ultra-small size, low quiescent current, and high PSRR in single-output LDO applications - targeting battery-powered systems with stringent space and efficiency constraints.
FAQ
What is the maximum input voltage rating for the MIC5365-1.8YD5-T5?
The MIC5365-1.8YD5-T5 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. For sustained operation, maintain VIN within this specified range to ensure compliance with dropout, thermal, and accuracy specifications across temperature.
Does the MIC5365-1.8YD5-T5 require an external output capacitor, and what type is recommended?
Yes, the MIC5365-1.8YD5-T5 requires a minimum 1µF ceramic output capacitor for stability. X5R or X7R dielectric types in 0402 or 0603 case sizes are strongly recommended due to their stable capacitance over temperature and low ESR. Y5V or Z5U dielectrics are not advised, as their capacitance variation exceeds ±50%, risking instability under thermal stress.
Is the MIC5365-1.8YD5-T5 pin-compatible with other variants in the MIC5365 family?
Yes, all MIC5365-xxYD5 variants share identical 5-pin TSOT23 pinout and electrical behavior - only the output voltage differs (e.g., MIC5365-1.2YD5 = 1.2V, MIC5365-2.8YD5 = 2.8V). This allows drop-in replacement during design iteration or voltage scaling without PCB changes, provided input/output capacitor values remain appropriate for the new VOUT.
What is the thermal resistance (θJA) of the MIC5365-1.8YD5-T5 in its TSOT23-5 package?
The MIC5365-1.8YD5-T5 has a junction-to-ambient thermal resistance (θJA) of 253°C/W in the 5-pin TSOT23 package, as specified in the datasheet. This value assumes standard JEDEC 2-layer board conditions. Actual thermal performance improves with PCB copper pour connected to the exposed pad (EP) and additional thermal vias to inner ground planes.
Does the MIC5365-1.8YD5-T5 include auto-discharge functionality like the MIC5366 series?
No, the MIC5365-1.8YD5-T5 does not include auto-discharge functionality. That feature is exclusive to the MIC5366 series (e.g., MIC5366-1.8YD5), which integrates an NFET discharge path activated when EN is low. The MIC5365-1.8YD5-T5 lacks this circuit - its output floats after shutdown unless externally discharged via a bleed resistor or downstream load.
MIC5365-1.8YD5-T5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- 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):
- 1.8V
- 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:
- TSOT-23-5
MIC5365-1.8YD5-T5 FAQ
1.How can I place an order for MIC5365-1.8YD5-T5 through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5365-1.8YD5-T5 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 MIC5365-1.8YD5-T5 reliable?
The price and inventory of MIC5365-1.8YD5-T5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5365-1.8YD5-T5 is usually 5 days.
3.What payment methods are accepted for MIC5365-1.8YD5-T5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5365-1.8YD5-T5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5365-1.8YD5-T5?
MIC5365-1.8YD5-T5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5365-1.8YD5-T5 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 MIC5365-1.8YD5-T5?
For technical support, including MIC5365-1.8YD5-T5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5365-1.8YD5-T5 requirements.
6.How does Aetrix verify that MIC5365-1.8YD5-T5 is sourced from the original manufacturer or authorized distributors?
All MIC5365-1.8YD5-T5 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 MIC5365-1.8YD5-T5 meets industry standards.
7.What is the process for return or replacement of MIC5365-1.8YD5-T5?
All MIC5365-1.8YD5-T5 units undergo pre-shipment inspection (PSI). If there is an issue with MIC5365-1.8YD5-T5, 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 MIC5365-1.8YD5-T5 part is unused and in its original packaging.
Return procedure for MIC5365-1.8YD5-T5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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