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Microchip Technology MIC5528-2.8YMX-TR
- Part No.:
- MIC5528-2.8YMX-TR
- Manufacturer:
- Microchip Technology
- Package:
- 6-XFDFN Exposed Pad
- Datasheet:
-
MIC5528-2.8YMX-TR.pdf
- Description:
- IC REG LINEAR 2.8V 500MA 6XTDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,737
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Product details
Overview
MIC5528-2.8YMX-TR from Microchip Technology is a 500 mA, low-dropout linear regulator with fixed 2.8 V output, ±2% room-temperature accuracy, 260 mV dropout at full load, and 38 µA quiescent current. It operates from 2.5 V to 5.5 V input and is optimized for space-constrained, battery-powered systems requiring stable low-voltage rail generation.
For engineers reviewing the MIC5528-2.8YMX-TR datasheet, MIC5528-2.8YMX-TR pinout, MIC5528-2.8YMX-TR application, or MIC5528-2.8YMX-TR equivalent, this page delivers verified technical context, package mapping, real-world use cases, and validated alternative options for portable medical devices, GPS modules, and 5 V point-of-load conversion.
Technical Context
The MIC5528-2.8YMX-TR implements a µCap architecture enabling stability with only 2.2 µF ceramic output capacitance and eliminating need for bulk electrolytics. Its active-high enable pin integrates a 4 MΩ internal pull-down resistor and controls zero-current shutdown mode.
Thermal protection includes current limiting (525–800 mA) and thermal shutdown (TJ > +125°C), while auto-discharge functionality engages a 25 Ω internal NFET between VOUT and GND when disabled-ensuring rapid capacitor discharge without external circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2% at 25°C; supports precision biasing of RF front-ends and low-voltage microcontrollers. |
| Max Output Current | 500 mA continuous; sufficient for powering ARM Cortex-M cores, sensors, and wireless transceivers in compact designs. |
| Dropout Voltage | 260 mV @ 500 mA; enables regulation from 3.06 V input-critical for extending battery life in single-cell Li-ion or Li-poly systems. |
| Quiescent Current | 38 µA typical; minimizes standby power loss in always-on wearable and IoT edge nodes. |
| Input Voltage Range | 2.5 V to 5.5 V; compatible with USB-powered, coin-cell-backed, and multi-rail embedded systems. |
| Operating Temp | –40°C to +125°C junction range; qualified for automotive cabin, industrial handheld, and portable medical environments. |
| Package | 6-pin 1.2 mm × 1.2 mm × 0.4 mm Extra Thin DFN (MX); ultra-low profile enables stacking under connectors or beneath displays. |
Pinout & Package
Package: 6-Lead Extra Thin DFN (MX), 1.2 mm × 1.2 mm × 0.4 mm body height, exposed thermal pad (ePad) requiring connection to GND for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 - VOUT | Regulated output voltage node | Dual-pin configuration lowers IR drop and improves current sharing; internally connected to auto-discharge NFET when EN = low. |
| 3 - GND | Power ground reference | Primary return path for load and quiescent current; must be tied to ePad for thermal integrity and noise reduction. |
| 4 - EN | Active-high enable control | TTL-compatible logic input; internal 4 MΩ pull-down ensures safe default-OFF state-no external resistor required. |
| 5 - NC | No connection | Unbonded die pad; must remain unconnected on PCB to avoid parasitic coupling or mechanical stress. |
| 6 - VIN | Input supply rail | Accepts 2.5–5.5 V; requires 2.2 µF ceramic input capacitor placed adjacent to pin for high-frequency stability. |
| ePad | Exposed thermal pad | Electrically and thermally connected to GND; mandatory for achieving 173°C/W θJA and sustaining 500 mA at elevated ambient temperatures. |
Key Features
| Feature | Design Value |
|---|---|
| µCap architecture | Stable with 2.2 µF ceramic output capacitor only-reduces BOM count, board area, and cost vs. traditional LDOs requiring ≥10 µF. |
| Auto-discharge circuit | 25 Ω internal NFET discharges output capacitors rapidly upon disable-eliminates need for external bleed resistors in keep-alive circuits. |
| Zero-off-mode current | 0.05–1 µA shutdown current-preserves battery charge during extended sleep cycles in portable diagnostics and telemetry devices. |
| Thermal & current protection | Integrated foldback current limit (525–800 mA) and thermal shutdown prevent damage during overload or poor heatsinking conditions. |
| Wide temperature operation | Specified performance across –40°C to +125°C junction range-supports deployment in automotive infotainment, outdoor wearables, and industrial sensors. |
Applications
| Portable Medical Sensors | GPS/GLONASS Modules |
|---|---|
|
Use Scenario: Powering low-noise analog front-ends and ADCs in handheld ECG or pulse oximetry units. IC Role / Device Role / Timing Role: Provides clean, stable 2.8 V bias for signal conditioning stages and reference buffers. Use Value: 175 µVRMS output noise and 70 dB PSRR at 100 Hz ensure minimal interference with sub-mV biomedical signals. |
Use Scenario: Supplying 2.8 V to GNSS RF receivers and baseband processors in compact navigation devices. IC Role / Device Role / Timing Role: Delivers regulated rail with fast transient response (<125 µs turn-on) for burst-mode satellite acquisition. Use Value: Low 260 mV dropout allows operation down to 3.06 V input-extending runtime from single-cell Li-ion batteries. |
| Wearable Fitness Trackers | 5 V Point-of-Load Conversion |
|
Use Scenario: Generating 2.8 V for Bluetooth LE SoCs and MEMS accelerometers in wrist-worn form factors. IC Role / Device Role / Timing Role: Supplies low-quiescent-power rail during deep-sleep states and dynamic wake-up bursts. Use Value: 38 µA quiescent current and zero-off-mode (0.05 µA) minimize average power draw-enabling multi-week battery life. |
Use Scenario: Stepping down 5 V system bus to 2.8 V for FPGA I/O banks or camera sensor interfaces. IC Role / Device Role / Timing Role: Acts as secondary POL regulator with tight line/load regulation (0.02%/V, 65 mV). Use Value: Stable operation with no-load condition prevents brownout during FPGA configuration or camera idle states. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1703-2802E/MB | Same 2.8 V output, but 250 mA max current and 6 µA quiescent current; uses SOT-23-5 package. | Better suited for ultra-low-power sensor nodes where <250 mA load suffices and board space permits larger footprint. | Select if lower IQ dominates over output current capability-and SOT-23 layout compatibility is preferred. |
| Torex XC6219B282MR-G | 2.8 V fixed output, 500 mA rating, 15 µA IQ, but no auto-discharge or internal EN pull-down; requires external enable resistor. | Ideal for cost-sensitive consumer electronics where external discharge circuitry is acceptable and thermal constraints are relaxed. | Choose when minimizing BOM cost outweighs need for integrated safety features and ultra-thin packaging. |
Compared with MCP1703-2802E/MB and XC6219B282MR-G, the MIC5528-2.8YMX-TR uniquely combines 500 mA delivery, 38 µA IQ, auto-discharge, and 1.2 mm × 1.2 mm XTDFN in a single device-making it optimal for next-gen portable medical and GPS hardware where size, safety, and efficiency intersect.
Availability
MIC5528-2.8YMX-TR is available at Aetrix Electronics and suitable for portable medical sensors, GPS modules, and 5 V point-of-load conversion requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC5528-2.8YMX-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
Microchip Technology is a global provider of microcontroller, mixed-signal, analog, and Flash-IP solutions, serving automotive, industrial, consumer, and communications markets with vertically integrated silicon and software platforms.
The MIC5528 family delivers high-performance, ultra-small-footprint LDOs targeting battery-operated portable equipment-emphasizing µCap stability, auto-discharge safety, and thermal resilience in sub-1.5 mm² packages.
FAQ
What is the maximum output current specification for MIC5528-2.8YMX-TR?
The MIC5528-2.8YMX-TR is rated for 500 mA continuous output current under specified thermal conditions. This value is validated across the full operating temperature range (–40°C to +125°C junction) with proper PCB layout-including thermal pad connection to GND-and 2.2 µF ceramic output capacitance. Peak current capability may vary with input-output differential and ambient temperature.
Does MIC5528-2.8YMX-TR require an external pull-down resistor on the EN pin?
No. The MIC5528-2.8YMX-TR includes an internal 4 MΩ pull-down resistor on the EN pin, ensuring the device remains disabled when the enable signal is left floating or tri-stated. This eliminates the need for external components and simplifies design for systems with limited GPIO resources.
Can MIC5528-2.8YMX-TR operate with no load?
Yes. The MIC5528-2.8YMX-TR remains stable and in regulation with zero load current-a key advantage over many competing LDOs. This behavior is critical for applications like CMOS RAM keep-alive circuits or standby power rails where output capacitance must remain charged without drawing unnecessary current.
What is the purpose of the dual VOUT pins (pins 1 and 2) on MIC5528-2.8YMX-TR?
Pins 1 and 2 are internally bonded together as a single VOUT node. Their dual configuration reduces series resistance and inductance, improving current delivery and transient response-especially important for high-speed digital loads. Both pins must be routed to the same net and connected to the output capacitor's positive terminal.
Is MIC5528-2.8YMX-TR compatible with 2.2 µF X5R ceramic capacitors?
Yes. The MIC5528-2.8YMX-TR is specifically optimized for 2.2 µF X5R or X7R ceramic output capacitors. These dielectrics provide stable capacitance over temperature and low ESR-ensuring loop stability without requiring additional compensation components. Y5V capacitors are not recommended due to excessive capacitance drift.
MIC5528-2.8YMX-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 6-XFDFN Exposed Pad
- 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):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.5V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 55 µA
- Current - Supply (Max):
- 65 µA
- PSRR:
- 70dB ~ 60dB (100Hz ~ 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-XTDFN (1.2x1.2)
MIC5528-2.8YMX-TR FAQ
1.How can I place an order for MIC5528-2.8YMX-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5528-2.8YMX-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 MIC5528-2.8YMX-TR reliable?
The price and inventory of MIC5528-2.8YMX-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5528-2.8YMX-TR is usually 5 days.
3.What payment methods are accepted for MIC5528-2.8YMX-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5528-2.8YMX-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5528-2.8YMX-TR?
MIC5528-2.8YMX-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5528-2.8YMX-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 MIC5528-2.8YMX-TR?
For technical support, including MIC5528-2.8YMX-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5528-2.8YMX-TR requirements.
6.How does Aetrix verify that MIC5528-2.8YMX-TR is sourced from the original manufacturer or authorized distributors?
All MIC5528-2.8YMX-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 MIC5528-2.8YMX-TR meets industry standards.
7.What is the process for return or replacement of MIC5528-2.8YMX-TR?
All MIC5528-2.8YMX-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5528-2.8YMX-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 MIC5528-2.8YMX-TR part is unused and in its original packaging.
Return procedure for MIC5528-2.8YMX-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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