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Microchip Technology MIC5380-G4YFT-TR
- Part No.:
- MIC5380-G4YFT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 6-UFQFN, 6-TMLF®
- Datasheet:
-
MIC5380-G4YFT-TR.pdf
- Description:
- IC REG LINEAR 1.2V/1.8V 6TMLF
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MIC5380-G4YFT-TR from Micrel is a dual low-dropout linear regulator IC delivering two independent 150mA outputs at fixed 1.8V and 1.2V, housed 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 systems such as portable medical devices and USB peripherals.
For engineers reviewing the MIC5380-G4YFT-TR datasheet, MIC5380-G4YFT-TR pinout, MIC5380-G4YFT-TR application, or MIC5380-G4YFT-TR equivalent, key selection criteria include dual-rail voltage generation with independent enable control, zero-off-mode shutdown (0.05µA), stability with 0402 1µF ceramic capacitors, and thermal/overcurrent protection in a RoHS-compliant ultra-small footprint.
Technical Context
The MIC5380-G4YFT-TR integrates two CMOS-based LDOs sharing a common input and ground but operating independently via dedicated EN1/EN2 pins. Each regulator uses internal bandgap reference and error amplifier feedback to maintain tight regulation across –40°C to +125°C junction temperature.
It employs low-ESR ceramic capacitor–optimized control loop architecture enabling fast transient response and 60dB PSRR at 1kHz. Unlike the MIC5381 variant, it lacks auto-discharge circuitry-output discharge requires external design when disabling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | 1.8V (LDO1) and 1.2V (LDO2), fixed and non-adjustable-enables direct power delivery to core logic and I/O rails without external resistors. |
| Max Output Current | 150mA per LDO-supports moderate-power digital subsystems like camera DSPs or Bluetooth baseband ICs. |
| Dropout Voltage | 155mV at 150mA-allows operation down to VIN = VOUT + 0.155V, extending battery runtime in single-cell Li-ion (2.8V min) applications. |
| Accuracy | ±1% typical over load/temperature-ensures reliable margin for 1.2V core supplies requiring tight tolerance (e.g., ARM Cortex-M cores). |
| Quiescent Current | 32µA per LDO (64µA total active)-minimizes standby drain in always-on sensor nodes or keep-alive RAM circuits. |
| Shutdown Current | 0.05µA max when both EN1 and EN2 are low-enables true zero-power state for long-term storage or deep-sleep modes. |
| PSRR | 60dB at 1kHz-effectively suppresses switching noise from upstream DC/DC converters feeding VIN. |
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 | LDO1 regulated output (1.8V); connects directly to load requiring stable 1.8V supply (e.g., memory I/O). |
| 2 | VOUT2 | LDO2 regulated output (1.2V); powers low-voltage cores such as microcontroller cores or analog sensor interfaces. |
| 3 | EN2 | Active-high enable for LDO2; must be pulled high (>1.2V) to activate-prevents floating-induced erratic behavior. |
| 4 | EN1 | Active-high enable for LDO1; enables independent sequencing (e.g., power LDO1 before LDO2 during boot). |
| 5 | GND | Common ground return for both regulators and enable inputs-requires low-inductance PCB connection to minimize noise coupling. |
| 6 | VIN | Shared input supply (2.5V–5.5V); feeds both LDOs-must be decoupled with ≥1µF ceramic capacitor close to pin 6. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | 1mm × 1mm Thin MLF® package saves >70% board area vs. standard SOT-23 dual-LDO solutions-critical for Bluetooth headsets and PDA modules. |
| Independent enable control | Dedicated EN1/EN2 pins allow staggered power-up/down sequencing-enables compliance with processor power-state transitions (e.g., ARM WFI/WFE). |
| Stability with 0402 capacitors | Guaranteed stable with 1µF X5R/X7R 0402 ceramics-eliminates need for larger 0603 or tantalum caps, reducing BOM count and height. |
| Thermal & current protection | Integrated thermal shutdown and foldback current limiting prevent damage during overload or poor heatsinking-no external protection circuitry required. |
| No-load regulation | Maintains regulation with zero output current-essential for CMOS RAM keep-alive circuits where load may be disconnected. |
Applications
| Bluetooth Headset Power Management | USB Thumb Drive Controller Supply |
|---|---|
|
Use Scenario: Powers Bluetooth baseband IC (1.8V I/O) and RF transceiver core (1.2V) from single Li-ion cell (2.8–4.2V). IC Role / Device Role / Timing Role: Dual-rail LDO providing isolated, low-noise, sequenced voltage domains for digital and analog blocks. Use Value: Eliminates need for two discrete regulators-reduces solution size by 40% and improves PSRR over switching alternatives. |
Use Scenario: Supplies USB 2.0 controller (1.2V core) and NAND flash interface (1.8V I/O) from 5V USB bus via internal buck converter. IC Role / Device Role / Timing Role: Secondary LDO stage delivering clean, low-ripple rails after primary DC/DC conversion. Use Value: 60dB PSRR at 1kHz suppresses switching noise from upstream buck converter-prevents USB enumeration failures. |
| Medical Handheld Sensor Interface | Portable GPS Receiver Core Supply |
|
Use Scenario: Powers low-power MCU (1.2V core) and analog front-end (1.8V ADC reference) in battery-operated glucose meter. IC Role / Device Role / Timing Role: Precision dual-LDO ensuring accurate ADC reference and deterministic MCU timing under varying load. Use Value: ±1% output accuracy maintains ADC linearity; 32µA quiescent current extends battery life beyond 6 months in standby. |
Use Scenario: Supplies GPS baseband processor (1.2V) and RF front-end bias (1.8V) from single-cell Li-ion in compact navigation device. IC Role / Device Role / Timing Role: Low-noise local regulator isolating sensitive GNSS RF section from digital switching noise. Use Value: 155mV dropout enables operation down to 2.95V input-maximizes usable battery capacity before brownout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS70248PWPR | 200mA per LDO, 1.5V/3.3V fixed outputs, 16-pin HTSSOP package (3.1mm × 3.1mm) | Higher current, wider voltage pairing, larger footprint-suited for industrial controllers needing higher drive capability. | Select when >150mA per rail or different voltage combinations (e.g., 1.5V/3.3V) are required; not drop-in due to pinout and size mismatch. |
| AP7361-1812D-7 | Dual 300mA LDO, 1.8V/1.2V outputs, 10-pin DFN (2.5mm × 2.5mm), no independent enables | Higher current, shared enable, larger package-better for cost-sensitive consumer electronics with less stringent size constraints. | Choose when board space allows 2.5mm × 2.5mm and simultaneous enable suffices; lacks independent sequencing capability of MIC5380-G4YFT-TR. |
Compared with TPS70248PWPR and AP7361-1812D-7, the MIC5380-G4YFT-TR uniquely delivers 150mA dual-rail regulation in a 1mm × 1mm footprint with independent enables-making it optimal for ultra-compact portable designs where sequencing and minimal area are critical.
Availability
MIC5380-G4YFT-TR is available at Aetrix Electronics and suitable for Bluetooth headsets, portable GPS receivers, and medical handheld electronics requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for MIC5380-G4YFT-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 power management, analog, and RF solutions before its acquisition by Microchip Technology in 2015. Its LDO portfolio emphasized high accuracy, low quiescent current, and miniature packaging.
The MIC5380/1 family was designed specifically for space-constrained portable electronics requiring dual, independently controlled, low-noise voltage rails-targeting applications where board area, battery life, and reliability outweigh cost sensitivity.
FAQ
What are the fixed output voltages of the MIC5380-G4YFT-TR?
The MIC5380-G4YFT-TR provides two fixed, non-adjustable output voltages: 1.8V on VOUT1 (Pin 1) and 1.2V on VOUT2 (Pin 2). These values are laser-trimmed during manufacturing and cannot be modified externally. The marking code "G4" on the device body confirms this 1.8V/1.2V configuration per the Micrel ordering guide.
Does the MIC5380-G4YFT-TR include auto-discharge functionality?
No, the MIC5380-G4YFT-TR does not include auto-discharge circuitry. That feature is exclusive to the MIC5381 variant (e.g., MIC5381-G4YFT). When EN1 or EN2 is pulled low on the MIC5380-G4YFT-TR, the corresponding output enters zero-current shutdown but leaves the output capacitor charged-external discharge paths must be added if rapid voltage decay is required.
What input voltage range is supported by the MIC5380-G4YFT-TR?
The MIC5380-G4YFT-TR operates with an input voltage range of +2.5V to +5.5V. This allows compatibility with single-cell Li-ion (2.8–4.2V), Li-polymer, or regulated 3.3V/5V system rails. Operation below 2.5V risks dropout or loss of regulation, especially at full 150mA load on either output.
Can the MIC5380-G4YFT-TR be used without load on either output?
Yes, the MIC5380-G4YFT-TR remains stable and in regulation with zero load on either or both outputs. This no-load stability is confirmed in the datasheet's Application Information section and is essential for applications like CMOS RAM keep-alive circuits where one rail may be unconnected during certain states.
What ceramic capacitor dielectrics are recommended for use with the MIC5380-G4YFT-TR?
X5R and X7R dielectric ceramic capacitors are recommended for both input and output filtering with the MIC5380-G4YFT-TR. These offer stable capacitance over temperature (±15% for X7R), low ESR, and compatibility with 0402 case size. Y5V and Z5U dielectrics are explicitly discouraged due to excessive capacitance loss across temperature.
MIC5380-G4YFT-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, 1.8V
- 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-G4YFT-TR FAQ
1.How can I place an order for MIC5380-G4YFT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5380-G4YFT-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-G4YFT-TR reliable?
The price and inventory of MIC5380-G4YFT-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-G4YFT-TR is usually 5 days.
3.What payment methods are accepted for MIC5380-G4YFT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5380-G4YFT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5380-G4YFT-TR?
MIC5380-G4YFT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5380-G4YFT-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-G4YFT-TR?
For technical support, including MIC5380-G4YFT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5380-G4YFT-TR requirements.
6.How does Aetrix verify that MIC5380-G4YFT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5380-G4YFT-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-G4YFT-TR meets industry standards.
7.What is the process for return or replacement of MIC5380-G4YFT-TR?
All MIC5380-G4YFT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5380-G4YFT-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-G4YFT-TR part is unused and in its original packaging.
Return procedure for MIC5380-G4YFT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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