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Microchip Technology MIC5327-1.8YMT-TR
- Part No.:
- MIC5327-1.8YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 4-UFDFN Exposed Pad, 4-TMLF®
- Datasheet:
-
MIC5327-1.8YMT-TR.pdf
- Description:
- IC REG LINEAR 1.8V 300MA 4TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:4,111
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Product details
Overview
MIC5327-1.8YMT from Micrel Inc. is a fixed 1.8V, 300mA low-dropout linear regulator with 24µA quiescent current, 180mV dropout at full load, and stable operation with 1µF ceramic output capacitors - designed for space-constrained battery-powered systems such as GPS receivers and portable media players.
For engineers reviewing the MIC5327-1.8YMT datasheet, MIC5327-1.8YMT pinout, MIC5327-1.8YMT application, or MIC5327-1.8YMT equivalent, key selection criteria include ultra-low IQ, thermal shutdown protection, TTL-compatible enable input, and compatibility with tiny 1.2mm × 1.6mm Thin MLF® packaging.
Technical Context
The MIC5327-1.8YMT implements a CMOS-based LDO architecture with internal reference and error amplifier, delivering regulated 1.8V output across 2.3V–5.5V input range. It features active-high enable logic, ground-pin current tracking under load (24–35µA), and fast transient response enabled by high-bandwidth design.
Thermal protection is implemented via junction-sensing shutdown at 125°C, and current limiting activates at 400–950mA depending on input voltage. The device operates without minimum load requirement and maintains regulation down to zero load current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±2% over –40°C to +125°C; enables direct replacement of 1.8V logic rails without external feedback. |
| Max Output Current | 300mA continuous; supports core power for microcontrollers and RF ICs in compact portable devices. |
| Quiescent Current | 24µA typical at 100µA load; extends battery life in always-on sensor nodes and standby modes. |
| Dropout Voltage | 180mV at 300mA; allows operation from single-cell Li-ion (3.0V min) down to 1.98V input while sustaining 1.8V output. |
| PSRR | 60dB at 1kHz, 50dB at 20kHz; suppresses switching noise from adjacent DC/DC converters in mixed-power-supply systems. |
| Output Noise | 90µVRMS (10Hz–100kHz); suitable for noise-sensitive analog circuitry like ADC references and RF synthesizers. |
| Enable Threshold | VIH = 1.2V min, VIL = 0.2V max; interfaces directly with 1.8V/3.3V GPIO without level-shifting. |
Pinout & Package
Package: 4-pin 1.2mm × 1.6mm Thin MLF® (MT) with exposed EPAD thermally connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Input supply connection | Accepts 2.3V–5.5V; requires 1µF ceramic bypass capacitor placed adjacent to pin for stability. |
| 2 - GND | Power and signal reference | Common return path for input/output currents; EPAD must be soldered to PCB ground plane for thermal performance. |
| 3 - EN | Active-high enable control | Pulled high ≥1.2V to activate regulator; pulled low ≤0.2V to enter <1µA shutdown mode; must not float. |
| 4 - VOUT | Regulated output terminal | Delivers fixed 1.8V ±2%; stable with ≥1µF X5R/X7R ceramic capacitor; no minimum load required. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 24µA operating current enables >1-year battery life in 10µA average-load IoT endpoints. |
| Small-footprint stabilization | Stable with 1µF ceramic output capacitor only - eliminates need for large tantalum or electrolytic bulk caps. |
| Robust fault protection | Integrated thermal shutdown and current limit prevent damage during overload or ambient temperature excursions. |
| TTL-compatible enable | Direct interface with 1.8V/3.3V microcontroller GPIO pins without external pull-ups or level shifters. |
| Green RoHS-compliant package | Thin MLF® with NiPdAu lead finish and halogen-free mold compound meets IPC/JEDEC J-STD-020 moisture sensitivity Level 3. |
Applications
| GPS Receivers | Portable Media Players |
|---|---|
Use Scenario: Powering GNSS baseband processors and RF front-end ICs in handheld navigation units with single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Primary 1.8V core supply regulator delivering clean, low-noise voltage to sensitive analog and digital blocks. Use Value: 90µVRMS output noise and 60dB PSRR preserve carrier-to-noise ratio and reduce bit error rate in weak-signal environments. | Use Scenario: Supplying 1.8V logic rails for audio CODECs, display drivers, and NAND flash controllers in MP3/MP4 players. IC Role / Device Role / Timing Role: Low-quiescent LDO providing always-on bias for real-time clock and memory retention during deep sleep. Use Value: 24µA IQ extends playback time between charges and enables >30-day standby with coin-cell backup. |
| Digital Cameras | PDAs |
Use Scenario: Powering image sensor interface circuitry and ISP cores in compact digital still/video cameras. IC Role / Device Role / Timing Role: Stable 1.8V supply for high-speed MIPI CSI-2 transceivers and embedded SRAM buffers. Use Value: 180mV dropout at 300mA ensures uninterrupted operation during burst capture when battery voltage sags to 1.98V. | Use Scenario: Regulating 1.8V for ARM9/ARM11 application processors and touch controller ASICs in legacy PDA platforms. IC Role / Device Role / Timing Role: Main system LDO enabling dynamic voltage scaling and rapid enable/disable sequencing with GPIO control. Use Value: 150–500µs turn-on time supports fast wake-from-suspend transitions without brownout resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1802E/TT | 250mA rated, 1.6µA IQ, SOT-23-5 package, no enable pin | Lacks active enable; requires external logic for shutdown control | Preferred where ultra-low IQ dominates over enable functionality and board area permits SOT-23 footprint |
| TPS7A0518PDBVR | 200mA rated, 25µA IQ, 5-pin SOT-23, integrated thermal foldback | Lower current rating; includes soft-start but no independent enable pin | Selected when tighter thermal management is needed and 200mA load ceiling is acceptable |
Compared with MCP1700T-1802E/TT and TPS7A0518PDBVR, the MIC5327-1.8YMT uniquely delivers 300mA output with enable control and 1.2mm × 1.6mm footprint - making it optimal for high-density portable designs requiring both performance headroom and power sequencing capability.
Availability
MIC5327-1.8YMT is available at Aetrix Electronics and suitable for GPS receivers, portable media players, and digital cameras requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for MIC5327-1.8YMT 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 timing solutions before its acquisition by Microchip Technology in 2015.
The MIC5327 product line was engineered for ultra-low-power, space-constrained portable electronics - targeting battery-operated devices needing high PSRR, minimal board area, and robust thermal protection in sub-2mm² packages.
FAQ
What is the maximum input voltage rating for the MIC5327-1.8YMT?
The MIC5327-1.8YMT has an absolute maximum input voltage rating of +6V, but its specified operating range is 2.3V to 5.5V. Operation above 5.5V risks permanent damage even if within the absolute maximum limit, and the device is not characterized or guaranteed beyond 5.5V per its datasheet operating ratings.
Does the MIC5327-1.8YMT require an external resistor divider for output voltage setting?
No, the MIC5327-1.8YMT is a fixed-output LDO with internally trimmed 1.8V regulation. It does not support adjustable output voltages and contains no feedback pin - eliminating the need for external resistors and simplifying layout for cost-sensitive portable designs.
Can the MIC5327-1.8YMT operate without an output capacitor?
No, the MIC5327-1.8YMT requires a minimum 1µF ceramic output capacitor for stability, as confirmed in the Applications Information section. Omitting this capacitor will cause oscillation or regulation failure; X5R or X7R dielectric types are recommended for temperature stability.
What is the thermal resistance (θJA) of the MIC5327-1.8YMT package?
The MIC5327-1.8YMT in its 4-pin 1.2mm × 1.6mm Thin MLF® package has a junction-to-ambient thermal resistance (θJA) of 173°C/W, measured under standard JEDEC test conditions. Effective thermal performance depends on proper EPAD soldering to a PCB ground plane with adequate copper area.
Is the MIC5327-1.8YMT compatible with lead-free reflow processes?
Yes, the MIC5327-1.8YMT uses a GREEN RoHS-compliant Thin MLF® package with NiPdAu lead finish and halogen-free mold compound, qualified for standard lead-free reflow profiles up to 260°C peak temperature for 5 seconds, as stated in the Absolute Maximum Ratings table.
MIC5327-1.8YMT-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 4-UFDFN 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):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 35 µA
- Current - Supply (Max):
- -
- PSRR:
- 60dB ~ 50dB (1kHz ~ 20kHz)
- 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® (1.2x1.6)
MIC5327-1.8YMT-TR FAQ
1.How can I place an order for MIC5327-1.8YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5327-1.8YMT-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 MIC5327-1.8YMT-TR reliable?
The price and inventory of MIC5327-1.8YMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5327-1.8YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5327-1.8YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5327-1.8YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5327-1.8YMT-TR?
MIC5327-1.8YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5327-1.8YMT-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 MIC5327-1.8YMT-TR?
For technical support, including MIC5327-1.8YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5327-1.8YMT-TR requirements.
6.How does Aetrix verify that MIC5327-1.8YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5327-1.8YMT-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 MIC5327-1.8YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5327-1.8YMT-TR?
All MIC5327-1.8YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5327-1.8YMT-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 MIC5327-1.8YMT-TR part is unused and in its original packaging.
Return procedure for MIC5327-1.8YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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