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Microchip Technology MIC5375-2.8YC5-TR
- Part No.:
- MIC5375-2.8YC5-TR
- Manufacturer:
- Microchip Technology
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MIC5375-2.8YC5-TR.pdf
- Description:
- IC REG LINEAR 2.8V 150MA SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,933
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Product details
Overview
MIC5375-2.8YC5-TR from Microchip Technology is a fixed-output 2.8 V, 150 mA low-dropout linear regulator in a 5-lead SC-70 package, featuring 120 mV dropout at full load, ±2% initial output accuracy, and integrated output discharge circuitry. It operates across 2.5 V to 5.5 V input, draws only 29 µA quiescent current, and maintains stability with 1 µF ceramic output capacitors - ideal for space-constrained portable electronics requiring fast transient response and zero-off-mode shutdown.
For engineers reviewing the MIC5375-2.8YC5-TR datasheet, MIC5375-2.8YC5-TR pinout, MIC5375-2.8YC5-TR application, or MIC5375-2.8YC5-TR equivalent, key selection considerations include its SC-70-5 footprint compatibility, guaranteed 150 mA output under 125°C junction temperature, auto-discharge functionality during disable, thermal shutdown protection, and suitability for battery-powered systems where low ground current and rapid load/line transient recovery are critical.
Technical Context
The MIC5375-2.8YC5-TR implements a CMOS-based LDO architecture with internal reference and error amplifier, enabling high PSRR (60 dB @ 1 kHz) and excellent line/load regulation (0.3% typ). Its active-high enable pin controls a zero-off-mode state drawing ≤1 µA, while the integrated NFET discharge path (30 Ω typical) actively drains the output capacitor when disabled.
This regulator is optimized for no-load stability and supports operation across –40°C to +125°C junction temperature. It requires only 1 µF input/output ceramic capacitance for ≥2.5 V outputs and delivers 200 µVRMS output noise (10 Hz–100 kHz), making it suitable for noise-sensitive analog and RF subsystems in portable devices.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V ±2% initial accuracy - ensures stable rail for core logic or RF ICs without external feedback components. |
| Max Output Current | 150 mA guaranteed - sufficient to power microcontrollers, sensors, or RF front-ends in handheld applications. |
| Dropout Voltage | 120 mV at 150 mA - enables operation down to 2.92 V input, extending battery runtime in single-cell Li-ion or Li-poly systems. |
| Quiescent Current | 29 µA typical - minimizes standby power loss, critical for always-on functions like RTC or memory retention. |
| Enable Threshold | Logic-high ≥1.2 V, logic-low ≤0.2 V - compatible with 1.8 V/3.3 V GPIO without level-shifting. |
| Thermal Protection | Integrated thermal shutdown - prevents damage during sustained overload or poor PCB thermal design. |
| Output Discharge | Active NFET (30 Ω typical) - discharges output capacitor on disable, preventing residual voltage from interfering with downstream sequencing. |
Pinout & Package
Package: 5-Lead SC-70 (C5), RoHS-compliant, 1.25 mm × 0.8 mm footprint, exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Input supply connection - accepts 2.5 V to 5.5 V; requires 1 µF ceramic capacitor to GND for stability. |
| 2 | GND | Power ground reference - must be connected directly to low-impedance system ground plane. |
| 3 | EN | Active-high enable control - drives output ON when ≥1.2 V; pulls output OFF and engages auto-discharge when ≤0.2 V. |
| 4 | VOUT | Regulated 2.8 V output - supplies load; stable with ≥1 µF ceramic capacitor; supports no-load regulation. |
| 5 | NC | No connection - internally unconnected; must remain floating or tied to GND per layout best practice (no electrical function). |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SC-70-5 package | 1.25 mm × 0.8 mm footprint - enables placement in tight spaces such as camera modules or wearable sensor nodes. |
| Auto-discharge circuit | 30 Ω internal NFET discharge path - eliminates need for external bleed resistor, simplifying BOM and improving power sequencing reliability. |
| Zero-off-mode shutdown | ≤1 µA shutdown current - preserves battery charge during extended sleep modes without compromising wake-up latency. |
| Stable with 0402 capacitors | Validated with 1 µF 0402 X7R ceramics - reduces board area and cost versus larger case sizes or tantalum alternatives. |
| High PSRR at 1 kHz | 60 dB rejection - suppresses switching noise from adjacent DC/DC converters, protecting sensitive analog circuits. |
Applications
| Mobile Phone Power Rail | Digital Camera Sensor Bias |
|---|---|
Use Scenario: Supplying 2.8 V to baseband processor I/O or RF transceiver bias circuitry in slim-profile smartphones. IC Role / Device Role / Timing Role: Primary LDO delivering clean, sequenced 2.8 V rail with fast load transient response to handle burst-mode transmission. Use Value: 120 mV dropout extends usable battery range; auto-discharge prevents back-powering during power-down sequences. | Use Scenario: Providing regulated 2.8 V to CMOS image sensor analog front-end and timing controller. IC Role / Device Role / Timing Role: Low-noise voltage source ensuring minimal pixel noise and stable clock generation for rolling shutter control. Use Value: 200 µVRMS output noise and 60 dB PSRR preserve SNR; SC-70 size fits near sensor die without routing congestion. |
| GPS Module Core Supply | Handheld PDA Audio Codec |
Use Scenario: Powering GPS baseband IC and LNA in compact navigation devices operating from single-cell Li-ion. IC Role / Device Role / Timing Role: Fixed-output LDO maintaining 2.8 V under dynamic load changes during satellite acquisition and tracking. Use Value: 29 µA quiescent current minimizes battery drain during cold-start search; thermal shutdown protects against enclosure overheating. | Use Scenario: Delivering 2.8 V to audio codec's analog section and headphone driver in palm-sized PDAs. IC Role / Device Role / Timing Role: Low-noise, fast-transient regulator isolating sensitive audio paths from digital supply noise. Use Value: Excellent line transient response (Fig 2-13) prevents audible pop/click during display backlight transitions or touch interrupts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC5376-2.8YC5-TR | Same family, identical 2.8 V fixed output, SC-70-5 package, but includes output discharge circuit (MIC5375 lacks discharge per DS20006080A Appendix A revision note). | Direct replacement where auto-discharge is required; not drop-in if discharge is unused or undesirable due to added leakage path. | Select MIC5376-2.8YC5-TR only when active output discharge during shutdown is needed; verify EN pin behavior matches system sequencing. |
| TPS7A0528PDBVR | 2.8 V fixed LDO in 5-pin SOT-23; 200 mA output, 170 mV dropout at 200 mA, 25 µA IQ, no auto-discharge. | Larger SOT-23 footprint; higher dropout limits low-VIN operation; no discharge function requires external resistor if needed. | Choose for higher current headroom or TI ecosystem alignment; avoid if SC-70 size or discharge functionality is mandatory. |
Compared with MIC5376-2.8YC5-TR, the MIC5375-2.8YC5-TR lacks auto-discharge - simplifying shutdown behavior but requiring external discharge if residual VOUT causes sequencing issues; versus TPS7A0528PDBVR, it offers smaller footprint and lower dropout at 150 mA, though with lower max current and no SOT-23 compatibility.
Availability
MIC5375-2.8YC5-TR is available at Aetrix Electronics and suitable for mobile phones, digital cameras, GPS modules, and handheld PDAs requiring stable component supply with consistent parametric performance across temperature and volume production.
Supply support for MIC5375-2.8YC5-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 U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and power management ICs, with ISO/TS 16949-certified global operations.
The MIC537x series was designed specifically for ultra-compact, battery-powered portable electronics demanding low quiescent current, fast transient response, and minimal board space - targeting applications where SC-70 packaging and sub-150 mV dropout are essential.
FAQ
What is the maximum input voltage rating for the MIC5375-2.8YC5-TR?
The MIC5375-2.8YC5-TR has an absolute maximum input voltage of +6 V, but its specified operating range is 2.5 V to 5.5 V. Operation above 5.5 V risks permanent damage, and designs should maintain VIN within the operating range to ensure ±2% output accuracy, thermal stability, and guaranteed 150 mA output current. The device includes overvoltage protection only via thermal shutdown - not input voltage clamping.
Does the MIC5375-2.8YC5-TR include an output discharge function?
No, the MIC5375-2.8YC5-TR does not include an output discharge circuit. Per Microchip's DS20006080A revision history (page 17), all references to MIC5375 were removed from the MIC5376/7/8 datasheet, and the MIC5375 is documented separately as a non-discharge variant. Only MIC5376 and MIC5378 feature auto-discharge; MIC5375-2.8YC5-TR relies on external discharge if required.
What capacitor values are required for stable operation of the MIC5375-2.8YC5-TR?
The MIC5375-2.8YC5-TR requires a minimum 1 µF ceramic capacitor on both input and output for stable operation at 2.8 V output. X7R or X5R dielectrics are recommended; Y5V is not advised due to excessive capacitance loss over temperature. For optimal high-frequency noise filtering, a parallel 100 pF NPO capacitor may be added at the input, but is not mandatory for basic stability.
Can the MIC5375-2.8YC5-TR operate with no load connected to VOUT?
Yes, the MIC5375-2.8YC5-TR remains stable and in regulation with no load - a key design feature confirmed in Section 4.3 ("No-Load Stability") of the datasheet. This makes it suitable for applications like CMOS RAM keep-alive circuits or always-on sensor bias rails where load current may drop to zero without causing oscillation or dropout.
What is the thermal shutdown threshold for the MIC5375-2.8YC5-TR?
The MIC5375-2.8YC5-TR activates thermal shutdown at a junction temperature of +125°C, as specified in the Absolute Maximum Ratings table. Once triggered, the device disables output and remains off until junction temperature falls below the hysteresis threshold (typically ~15°C below trip point). Thermal resistance (θJA) is 256.5°C/W for the SC-70-5 package, so ambient temperature must be derated based on power dissipation to avoid repeated cycling.
MIC5375-2.8YC5-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 0.2V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 45 µA
- Current - Supply (Max):
- -
- PSRR:
- 60dB ~ 50dB (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:
- SC-70-5
MIC5375-2.8YC5-TR FAQ
1.How can I place an order for MIC5375-2.8YC5-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5375-2.8YC5-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 MIC5375-2.8YC5-TR reliable?
The price and inventory of MIC5375-2.8YC5-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5375-2.8YC5-TR is usually 5 days.
3.What payment methods are accepted for MIC5375-2.8YC5-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5375-2.8YC5-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5375-2.8YC5-TR?
MIC5375-2.8YC5-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5375-2.8YC5-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 MIC5375-2.8YC5-TR?
For technical support, including MIC5375-2.8YC5-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5375-2.8YC5-TR requirements.
6.How does Aetrix verify that MIC5375-2.8YC5-TR is sourced from the original manufacturer or authorized distributors?
All MIC5375-2.8YC5-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 MIC5375-2.8YC5-TR meets industry standards.
7.What is the process for return or replacement of MIC5375-2.8YC5-TR?
All MIC5375-2.8YC5-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5375-2.8YC5-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 MIC5375-2.8YC5-TR part is unused and in its original packaging.
Return procedure for MIC5375-2.8YC5-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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