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Microchip Technology MIC5380-M4YFT-TR
- Part No.:
- MIC5380-M4YFT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 6-UFQFN, 6-TMLF®
- Datasheet:
-
MIC5380-M4YFT-TR.pdf
- Description:
- IC REG LINEAR 1.2V/2.8V 6TMLF
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MIC5380-M4YFT-TR from Micrel is a dual low-dropout linear regulator IC delivering two independent 150mA outputs with fixed 2.8V and 1.2V voltages in a 6-pin 1mm × 1mm Thin MLF® package. It features ±1% typical output accuracy, 155mV dropout at full load, and 32µA quiescent current per LDO - optimized for space-constrained, battery-powered portable electronics such as GPS modules and medical handhelds.
For engineers reviewing the MIC5380-M4YFT-TR datasheet, MIC5380-M4YFT-TR pinout, MIC5380-M4YFT-TR application, or MIC5380-M4YFT-TR equivalent, key selection criteria include dual-output voltage pairing, ultra-small footprint compatibility, zero-off-mode shutdown behavior, and stability with 0402 1µF ceramic capacitors - all critical for compact, low-power embedded power rails.
Technical Context
The MIC5380-M4YFT-TR integrates two CMOS-based LDO regulators sharing a common input (VIN) and ground (GND), each controlled by dedicated active-high enable pins (EN1, EN2). Its architecture supports independent regulation without cross-coupling, enabling asymmetric rail sequencing in multi-voltage SoC subsystems.
It operates across 2.5V–5.5V input range with thermal shutdown and current-limit protection. Unlike the MIC5381 variant, it lacks auto-discharge circuitry - confirmed by ordering table footnote and block diagram differentiation - making output capacitor discharge external to the device.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | 2.8V (LDO1) and 1.2V (LDO2) - fixed, non-adjustable; enables direct powering of core logic and I/O rails without external feedback networks. |
| Max Output Current | 150mA per LDO - sufficient for low-power microcontrollers, sensors, and RF transceivers in portable devices. |
| Dropout Voltage | 155mV at 150mA - allows operation with minimal headroom; e.g., 2.8V output sustained from 2.955V input. |
| Quiescent Current | 32µA per LDO - ensures ultra-low standby power; total ~64µA active, <1µA in shutdown (EN1=EN2=0V). |
| Accuracy | ±1% typical over load/temperature - meets tight tolerance requirements for precision analog or memory keep-alive supplies. |
| PSRR | 60dB at 1kHz - suppresses switching noise from upstream DC/DC converters feeding VIN. |
| Stability | Guaranteed with 1µF X5R/X7R ceramic output capacitors in 0402 size - eliminates need for larger or higher-ESR alternatives. |
Pinout & Package
Package: 6-pin 1mm × 1mm Thin MLF® (RoHS-compliant, NiPdAu lead finish, halogen-free mold compound). Pin 1 identified by ▲ mark on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VOUT1 | Regulated 2.8V output - powers primary digital core or RF section; requires local 1µF ceramic decoupling. |
| 2 | VOUT2 | Regulated 1.2V output - supplies low-voltage logic or processor I/O; shares GND return path with VOUT1. |
| 3 | EN2 | Active-high enable for LDO2 - must be pulled to VIN or logic high; floating state causes indeterminate output. |
| 4 | EN1 | Active-high enable for LDO1 - enables independent power gating; supports staggered startup/shutdown sequences. |
| 5 | GND | Analog/digital common ground - single-point connection required; PCB layout must minimize impedance to avoid noise coupling. |
| 6 | VIN | Main input supply (2.5–5.5V) - requires 1µF ceramic input capacitor to ground for high-frequency stability. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent LDOs | Enables simultaneous generation of 2.8V and 1.2V rails with separate enable control - ideal for mixed-voltage SoC power domains. |
| Ultra-small 1mm × 1mm footprint | Reduces PCB area by >70% vs. standard SOT-23 dual-LDO solutions - critical for Bluetooth headsets and USB thumb drives. |
| Zero-off-mode shutdown | Draws <1µA total when both EN1 and EN2 are low - preserves battery life in always-on sensor nodes or medical monitors. |
| Stable with 0402 1µF ceramics | Eliminates need for larger case sizes or tantalum capacitors - lowers BOM cost and improves reliability in temperature-cycling environments. |
| Thermal & current protection | Integrated shutdown prevents damage during overload or ambient temperature excursions up to +125°C junction. |
Applications
| GPS Module Power Supply | Medical Handheld Core Rail |
|---|---|
|
Use Scenario: Compact GPS receiver requiring clean, sequenced 2.8V (RF front-end) and 1.2V (baseband processor) supplies from a single Li-ion cell. IC Role / Device Role / Timing Role: Dual LDO regulator providing isolated, low-noise voltage rails with independent enable control for power-state management. Use Value: Eliminates need for two discrete regulators and saves >0.8mm² PCB area while maintaining ±1% rail accuracy under dynamic load. |
Use Scenario: Portable blood glucose meter with ARM Cortex-M0 MCU needing stable 2.8V analog front-end and 1.2V core voltage. IC Role / Device Role / Timing Role: Primary power management IC delivering regulated, low-ripple supplies with fast transient response to handle sensor burst sampling. Use Value: 60dB PSRR at 1kHz suppresses switching noise from boost converter feeding VIN, ensuring ADC measurement integrity. |
| Bluetooth Headset Audio Codec | USB Thumb Drive Controller |
|
Use Scenario: Miniature headset using MEMS microphone and Class-D amplifier, powered by coin-cell or small Li-Po battery. IC Role / Device Role / Timing Role: Dual-output LDO supplying 2.8V to audio codec and 1.2V to DSP core with independent enable for sleep/wake control. Use Value: 32µA quiescent current per LDO extends battery runtime in standby mode; 155mV dropout maximizes usable cell voltage range. |
Use Scenario: High-speed USB 2.0 flash drive with NAND controller and USB PHY requiring tightly regulated 2.8V I/O and 1.2V core. IC Role / Device Role / Timing Role: Compact dual LDO replacing discrete regulators to meet USB-IF EMI and thermal limits in sealed plastic housing. Use Value: 1mm × 1mm footprint fits within 3mm × 3mm board area budget; thermal resistance (θJA = 150°C/W) supports continuous 150mA operation at 70°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6216D2812MR-G | Same 2.8V/1.2V fixed outputs, 150mA per channel, but uses SOT-25 (2.9mm × 2.8mm) package - 8× larger footprint than MIC5380-M4YFT-TR. | Lacks independent enable pins; single EN controls both LDOs - unsuitable for rail-sequencing or partial shutdown use cases. | Select when board space permits larger package and simplified control is acceptable. |
| Ricoh RP512F2812-TR-F | 2.8V/1.2V dual LDO with 200mA per channel and 25µA quiescent current, in 1.2mm × 1.2mm DFN-8 - 44% larger area than MIC5380-M4YFT-TR. | Includes built-in auto-discharge on both outputs - not present in MIC5380-M4YFT-TR - useful where rapid output discharge is required. | Select when higher output current or integrated discharge is needed, accepting larger footprint and different pin count. |
Compared with XC6216D2812MR-G and RP512F2812-TR-F, MIC5380-M4YFT-TR offers the smallest footprint (1mm²) and true independent enable control, making it optimal for ultra-compact, multi-rail portable designs where board area and sequencing flexibility are prioritized over auto-discharge or marginal current headroom.
Availability
MIC5380-M4YFT-TR is available at Aetrix Electronics and suitable for GPS modules, medical handhelds, Bluetooth headsets, and USB storage devices requiring stable component supply with consistent parametric performance across production batches.
Supply support for MIC5380-M4YFT-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 analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015. Its LDO portfolio emphasized high performance in miniature packages.
The MIC5380 family was designed specifically for space-constrained portable electronics requiring dual, independently enabled, low-quiescent-current LDOs - targeting applications where PCB real estate and battery efficiency are critical constraints.
FAQ
What are the fixed output voltages of the MIC5380-M4YFT-TR?
The MIC5380-M4YFT-TR provides two fixed output voltages: 2.8V on VOUT1 and 1.2V on VOUT2. These values are factory-trimmed and non-adjustable; no external resistors or feedback networks are required. The marking code "M4" in the ordering table explicitly denotes this 2.8V/1.2V configuration, verified in the datasheet's Ordering Information section.
Does the MIC5380-M4YFT-TR include auto-discharge functionality?
No, the MIC5380-M4YFT-TR does not include auto-discharge. Auto-discharge is exclusive to the MIC5381 variant (e.g., MIC5381-M4YFT), which integrates a 30Ω NFET between each output and ground when disabled. The MIC5380-M4YFT-TR block diagram, pin description, and ordering table footnote confirm absence of this feature - external discharge paths must be implemented if needed.
What is the minimum input voltage required for the MIC5380-M4YFT-TR to regulate at full load?
To maintain regulation at 150mA output current, the MIC5380-M4YFT-TR requires VIN ≥ VOUT + dropout voltage. For VOUT1 = 2.8V and dropout = 155mV (typical), minimum VIN = 2.955V. For VOUT2 = 1.2V, same dropout applies, so VIN ≥ 1.355V - but the device's absolute minimum operating VIN is 2.5V per datasheet specifications, making 2.955V the practical lower limit for 2.8V rail operation.
Which ceramic capacitor dielectrics are recommended for use with the MIC5380-M4YFT-TR?
X5R and X7R dielectric ceramic capacitors are recommended for both input and output filtering with the MIC5380-M4YFT-TR. These offer stable capacitance over temperature (±15% for X7R), low ESR, and compatibility with 0402 size. Y5V and Z5U dielectrics are explicitly discouraged due to >50% capacitance loss over temperature, risking instability per the Application Information section.
Can the MIC5380-M4YFT-TR operate without load on either output?
Yes, the MIC5380-M4YFT-TR remains stable and in regulation with no load on either VOUT1 or VOUT2 - a key differentiator from many legacy LDOs. This "no-load stability" is confirmed in the Application Information section and is essential for applications like CMOS RAM keep-alive circuits where one rail may be idle while the other is active.
MIC5380-M4YFT-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 6-UFQFN, 6-TMLF®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.2V, 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.31V @ 150mA, 0.31V @ 150mA
- Current - Output:
- 150mA, 150mA
- Current - Quiescent (Iq):
- 45 µA
- Current - Supply (Max):
- 85 µA
- PSRR:
- 60dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TMLF® (1x1)
MIC5380-M4YFT-TR FAQ
1.How can I place an order for MIC5380-M4YFT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5380-M4YFT-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 MIC5380-M4YFT-TR reliable?
The price and inventory of MIC5380-M4YFT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5380-M4YFT-TR is usually 5 days.
3.What payment methods are accepted for MIC5380-M4YFT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5380-M4YFT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5380-M4YFT-TR?
MIC5380-M4YFT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5380-M4YFT-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 MIC5380-M4YFT-TR?
For technical support, including MIC5380-M4YFT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5380-M4YFT-TR requirements.
6.How does Aetrix verify that MIC5380-M4YFT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5380-M4YFT-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 MIC5380-M4YFT-TR meets industry standards.
7.What is the process for return or replacement of MIC5380-M4YFT-TR?
All MIC5380-M4YFT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5380-M4YFT-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 MIC5380-M4YFT-TR part is unused and in its original packaging.
Return procedure for MIC5380-M4YFT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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