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Microchip Technology MIC5337-2.8YMT-TR
- Part No.:
- MIC5337-2.8YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 4-UFDFN Exposed Pad, 4-TMLF®
- Datasheet:
-
MIC5337-2.8YMT-TR.pdf
- Description:
- IC REG LINEAR 2.8V 300MA 4TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:5,112
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Product details
Overview
MIC5337-2.8YMT-TR from Micrel is a fixed 2.8V, 300mA low-quiescent-current LDO regulator in a 1.2mm × 1.6mm Thin MLF® package, featuring 24µA operating IQ, 180mV dropout at full load, and integrated active discharge on disable-designed for space-constrained battery-powered systems such as GPS modules and portable media players.
For engineers reviewing the MIC5337-2.8YMT-TR datasheet, MIC5337-2.8YMT-TR pinout, MIC5337-2.8YMT-TR application, or MIC5337-2.8YMT-TR equivalent, key selection criteria include ultra-low IQ, auto-discharge functionality, thermal performance in compact layouts, compatibility with 1µF ceramic output capacitors, and TTL-compatible enable logic.
Technical Context
The MIC5337-2.8YMT-TR implements a CMOS-based LDO architecture with internal reference, error amplifier, pass transistor, and dedicated auto-discharge NFET. Its 173°C/W junction-to-ambient thermal resistance and 125°C max junction temperature define thermal limits under continuous 300mA load at elevated ambient temperatures.
It operates across 2.3V–5.5V input range with ±2.0% output voltage accuracy over –40°C to +125°C, maintains 65dB PSRR at 1kHz, and delivers fast transient response due to high bandwidth design optimized for 1µF ceramic output capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8V ±2.0% over –40°C to +125°C; enables direct replacement of 2.8V rails without external feedback. |
| Max Output Current | 300mA continuous; supports moderate-power RF ICs or sensor subsystems without derating in standard PCB layouts. |
| Quiescent Current | 24µA typical at 100µA–300mA load; extends battery life in always-on monitoring circuits. |
| Dropout Voltage | 180mV at 300mA; allows operation from single-cell Li-ion (3.0V min) down to 2.98V before regulation loss. |
| Enable Logic | TTL-compatible active-high EN pin (VIH ≥ 1.2V, VIL ≤ 0.2V); eliminates need for level-shifting in 1.8V/3.3V microcontroller interfaces. |
| Auto-Discharge | 280Ω internal NFET to GND when EN = low; discharges 10µF output cap in <3ms, preventing residual voltage hold-up. |
| Stability | Guaranteed stable with ≥1µF X7R/X5R ceramic output capacitor; avoids oscillation risks with high-ESR electrolytics. |
Pinout & Package
Package: 4-pin 1.2mm × 1.6mm Thin MLF® (MT) with exposed EPAD internally connected to GND-optimized for thermal dissipation in ultra-dense layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Input supply connection | Accepts 2.3V–5.5V; requires local 1µF ceramic bypass to GND for stability and noise rejection. |
| 2 - GND | Power ground reference | Common return for input/output current paths; EPAD must be soldered to PCB ground plane for thermal compliance. |
| 3 - EN | Active-high enable control | CMOS input; must be driven-not floated-to avoid undefined output state; pulls ~0.01µA when high. |
| 4 - VOUT | Regulated output terminal | Delivers 2.8V ±2% to load; connects to 1µF ceramic capacitor and downstream circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low IQ operation | 24µA quiescent current enables >1-year battery life in 10µA average-load IoT sensors. |
| Integrated auto-discharge | 280Ω internal discharge path reduces VOUT to <100mV within 3ms of disable-critical for power sequencing in multi-rail systems. |
| Small-footprint stability | Stable with 1µF ceramic output capacitor only-eliminates need for larger, board-area-consuming bulk caps. |
| Robust protection suite | Thermal shutdown and foldback current limiting prevent damage during overload or short-circuit events. |
| Tiny 1.2mm × 1.6mm footprint | Reduces PCB area by >60% vs. SOT-23-5 LDOs-enables placement directly beneath BGA processors or near RF antennas. |
Applications
| GPS Navigation Module | Digital Still Camera Sensor Rail |
|---|---|
Use Scenario: Powering GNSS baseband processor and RF front-end in handheld navigation units with tight thermal and size constraints. IC Role / Device Role / Timing Role: Primary 2.8V LDO supplying core logic and analog blocks; provides clean, low-noise bias independent of battery sag. Use Value: 180mV dropout ensures uninterrupted operation down to 2.98V battery voltage; 90µVRMS noise prevents GPS signal degradation. | Use Scenario: Delivering regulated 2.8V to CMOS image sensor and ISP in compact digital cameras. IC Role / Device Role / Timing Role: Dedicated sensor rail LDO with fast turn-on (<500µs) and zero-off-mode shutdown to minimize standby leakage. Use Value: 24µA IQ extends idle time between shots; auto-discharge prevents sensor latch-up during power cycling. |
| Portable Media Player Audio Codec | Industrial Handheld Scanner |
Use Scenario: Supplying low-noise 2.8V to stereo audio DAC and headphone amplifier in MP3 players. IC Role / Device Role / Timing Role: Low-PSRR-sensitive analog rail LDO; decouples codec from noisy digital supply domains. Use Value: 65dB PSRR at 1kHz suppresses switching noise from adjacent DC/DC converters; 1µF stability simplifies layout. | Use Scenario: Powering barcode scanner laser driver and MCU in ruggedized handheld terminals operating across –40°C to +85°C. IC Role / Device Role / Timing Role: Main system LDO with extended temperature rating (–40°C to +125°C) and thermal shutdown for reliability in hot environments. Use Value: 173°C/W θJA enables 300mA delivery at 83°C ambient-validated for sealed industrial enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2802E/TO | 250mA max output, 1.6µA IQ, TO-92 package (larger footprint, higher θJA) | Limited to lower-current, through-hole designs; lacks auto-discharge | Select when ultra-low IQ dominates over output current and board space is unconstrained. |
| Torex XC6206P282MR-G | 300mA, 1µA IQ, SOT-23-5 package; no auto-discharge, ±2% accuracy | Requires external discharge circuit; higher PSRR (70dB @ 1kHz) but larger footprint | Prefer when lowest possible standby current is critical and discharge is handled externally. |
Compared with MCP1700-2802E/TO and XC6206P282MR-G, the MIC5337-2.8YMT-TR uniquely balances 300mA drive, 24µA IQ, and integrated auto-discharge in a 1.2mm × 1.6mm footprint-making it optimal for miniaturized, battery-critical systems requiring safe, rapid power-down.
Availability
MIC5337-2.8YMT-TR is available at Aetrix Electronics and suitable for GPS navigation devices, portable media players, digital still cameras, industrial handheld scanners, and battery-powered sensor nodes requiring stable component supply across automotive-grade temperature ranges.
Supply support for MIC5337-2.8YMT-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.
The MIC5337 product line was designed specifically for ultra-compact, battery-operated portable electronics requiring high efficiency, fast transient response, and integrated safety features in sub-2mm² footprints.
FAQ
What is the maximum input voltage rating for the MIC5337-2.8YMT-TR?
The MIC5337-2.8YMT-TR has an absolute maximum input voltage of +6V, but its operational input range is specified from +2.3V to +5.5V. Exceeding 5.5V may cause permanent damage even if below 6V, as internal protection circuits are not rated for sustained overvoltage conditions. Always maintain VIN within 2.3V–5.5V for reliable long-term operation of the MIC5337-2.8YMT-TR.
Does the MIC5337-2.8YMT-TR require an external discharge resistor?
No, the MIC5337-2.8YMT-TR integrates an internal 280Ω NFET discharge path activated automatically when the EN pin is driven low. This eliminates the need for external components to discharge the output capacitor, reducing BOM count and PCB area. The discharge function is inherent to the MIC5337-2.8YMT-TR and operates independently of external circuitry.
Can the MIC5337-2.8YMT-TR operate with a 0.47µF output capacitor?
No-the MIC5337-2.8YMT-TR is characterized and guaranteed stable only with ≥1µF ceramic output capacitance. Using 0.47µF violates the minimum stability requirement and may result in oscillation or poor transient response. The MIC5337-2.8YMT-TR datasheet explicitly specifies 1µF as the minimum value for reliable operation across temperature and load conditions.
What is the thermal shutdown threshold of the MIC5337-2.8YMT-TR?
The MIC5337-2.8YMT-TR activates thermal shutdown when junction temperature exceeds +125°C, as defined in its Absolute Maximum Ratings. Recovery occurs once TJ falls below approximately +110°C due to hysteresis. This protection is internal and automatic-no external circuitry is needed. The shutdown behavior is intrinsic to the MIC5337-2.8YMT-TR and applies regardless of package mounting or airflow conditions.
Is the MIC5337-2.8YMT-TR RoHS compliant and halogen-free?
Yes, the MIC5337-2.8YMT-TR uses Micrel's Thin MLF® package, which is RoHS compliant and halogen-free per manufacturer documentation. The lead finish is NiPdAu, and the mold compound contains no halogens. This compliance is confirmed in the official ordering information table for the MIC5337-2.8YMT-TR and applies to all units shipped under this part number.
MIC5337-2.8YMT-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):
- 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.3V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 35 µA
- Current - Supply (Max):
- -
- PSRR:
- 65dB ~ 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)
MIC5337-2.8YMT-TR FAQ
1.How can I place an order for MIC5337-2.8YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5337-2.8YMT-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 MIC5337-2.8YMT-TR reliable?
The price and inventory of MIC5337-2.8YMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5337-2.8YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5337-2.8YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5337-2.8YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5337-2.8YMT-TR?
MIC5337-2.8YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5337-2.8YMT-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 MIC5337-2.8YMT-TR?
For technical support, including MIC5337-2.8YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5337-2.8YMT-TR requirements.
6.How does Aetrix verify that MIC5337-2.8YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5337-2.8YMT-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 MIC5337-2.8YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5337-2.8YMT-TR?
All MIC5337-2.8YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5337-2.8YMT-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 MIC5337-2.8YMT-TR part is unused and in its original packaging.
Return procedure for MIC5337-2.8YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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