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Microchip Technology MIC5302-2.5YMT-TR
- Part No.:
- MIC5302-2.5YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 4-UFDFN Exposed Pad, 4-TMLF®
- Datasheet:
-
MIC5302-2.5YMT-TR.pdf
- Description:
- IC REG LINEAR 2.5V 150MA 4TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:2,505
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Product details
Overview
MIC5302-2.5YMT-TR from Micrel is a fixed 2.5V, 150mA ultra-low dropout (ULDO™) CMOS linear regulator in a 4-pin 1.2mm × 1.6mm Thin MLF® package. It delivers 50mV dropout at full load, 120µVRMS output noise, ±2% initial accuracy, and operates from 2.3V–5.5V input-optimized for RF power stages and imaging sensors in space-constrained portable electronics.
For engineers reviewing the MIC5302-2.5YMT-TR datasheet, MIC5302-2.5YMT-TR pinout, MIC5302-2.5YMT-TR application, or MIC5302-2.5YMT-TR equivalent, key selection criteria include dropout voltage at 150mA, zero-off-mode shutdown current (<2µA), thermal shutdown behavior, ceramic capacitor stability, and –40°C to +125°C junction temperature operation.
Technical Context
The MIC5302-2.5YMT-TR integrates a precision bandgap reference, error amplifier, and PMOS pass transistor in a single-stage LDO architecture with active-high enable control. Its low ground current (85µA typical) and fast 35µs turn-on time support dynamic power sequencing in battery-powered systems.
It features internal thermal shutdown and current limiting (250–725mA), supports 1µF ceramic output capacitors without external compensation, and maintains regulation down to zero load-critical for CMOS RAM keep-alive and always-on sensor bias rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.5V ±2% initial accuracy; ensures stable bias for ADC references and camera sensor analog front-ends. |
| Max Output Current | 150mA guaranteed; sufficient for RF power amplifiers and image sensor analog cores in mobile handsets. |
| Dropout Voltage | 50mV at 150mA; enables operation with only 2.55V input, extending battery runtime in Li-ion and Li-poly systems. |
| Output Noise | 120µVRMS (10Hz–100kHz); minimizes jitter and SNR degradation in high-resolution imaging and RF signal chains. |
| Quiescent Current | 85µA total; reduces standby power loss in always-on modules such as GPS receivers and ambient light sensors. |
| Enable Threshold | Logic-high enable ≥1.1V; compatible with 1.8V/2.5V/3.3V GPIOs without level-shifting in modern SoC platforms. |
| Operating Temp | –40°C to +125°C junction; qualified for under-hood automotive camera modules and industrial handheld scanners. |
Pinout & Package
Package: 4-pin 1.2mm × 1.6mm Thin MLF® (MT) with exposed EPAD thermally connected to GND. Occupies only 1.92mm² PCB area-50% smaller than SC-70 and 2mm × 2mm MLF® packages.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Active-high enable input | Drives regulator ON/OFF; must be pulled high or low-never left floating; draws <1µA when enabled. |
| 2 - GND | Power and signal ground | Reference node for all internal circuitry; EPAD internally tied to this pin for thermal conduction. |
| 3 - VIN | Input supply connection | Accepts 2.3V–5.5V; requires 1µF low-ESR ceramic bypass capacitor placed adjacent to pin. |
| 4 - VOUT | Regulated output terminal | Delivers stable 2.5V; requires ≥1µF X7R/X5R ceramic capacitor directly at pin for stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | 1.2mm × 1.6mm Thin MLF® package occupies 1.92mm²-enables placement in tight RF module layouts. |
| Zero-off-mode shutdown | Draws ≤2µA when EN = low; eliminates quiescent drain in sleep states of portable media players and PDA mainboards. |
| Ceramic-capacitor stability | Stable with ≥1µF X7R/X5R ceramics-no ESR requirements or external compensation needed. |
| No-load regulation | Maintains 2.5V output with 0mA load-supports CMOS RAM backup and always-on sensor bias without dummy loads. |
| High PSRR | 65dB @ 1kHz, 42dB @ 20kHz-rejects switching noise from DC-DC converters feeding the same system rail. |
Applications
| Mobile Phone RF Power Stage | Digital Camera Image Sensor Bias |
|---|---|
Use Scenario: Powers RF power amplifier (PA) bias rail in dual-band GSM/WCDMA handsets where board area and thermal headroom are constrained. IC Role / Device Role / Timing Role: Ultra-low-noise, low-dropout LDO delivering clean 2.5V to PA collector supply, minimizing AM-to-PM distortion. Use Value: 50mV dropout extends usable battery range by enabling operation down to 2.55V input; 120µVRMS noise preserves EVM performance. | Use Scenario: Supplies analog core voltage to CMOS image sensors in compact digital still/video cameras. IC Role / Device Role / Timing Role: Low-noise, high-accuracy voltage source for pixel array and analog-to-digital conversion circuitry. Use Value: ±2% output accuracy ensures consistent ADC reference scaling; no-load stability avoids need for bleed resistors in standby mode. |
| GPS Receiver Front-End | Portable Media Player Audio Codec |
Use Scenario: Provides regulated 2.5V to low-noise amplifier (LNA) and downconverter ICs in miniaturized GPS modules. IC Role / Device Role / Timing Role: Clean, stable bias rail isolating sensitive RF front-end from noisy digital subsystems. Use Value: 65dB PSRR at 1kHz suppresses digital switching noise from baseband processors; 35µs turn-on enables fast acquisition mode. | Use Scenario: Powers audio codec analog supply in flash-based MP3 players and voice recorders. IC Role / Device Role / Timing Role: Low-quiescent LDO supplying VANA rail to stereo DAC and headphone amplifier stages. Use Value: 85µA ground current minimizes battery depletion during playback; thermal shutdown protects against overcurrent during headphone short events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-noise LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6206P252MR | 2.5V fixed, 150mA, 150mV dropout at 150mA, 25µVRMS noise, SOT-23-5 package | Higher dropout limits use in sub-2.65V battery systems; lower noise suits ultra-sensitive analog circuits | Select when lowest possible noise is critical and board area allows SOT-23-5; avoid if 50mV dropout is required at full load. |
| Diodes Inc. AP2210K-2.5TRG1 | 2.5V fixed, 150mA, 250mV dropout at 150mA, 40µVRMS noise, SOT-23-5 package | Higher dropout and larger footprint reduce suitability for Li-ion discharge tail-end operation | Choose for cost-sensitive designs where 250mV dropout is acceptable and SOT-23-5 layout is already established. |
Compared with XC6206P252MR and AP2210K-2.5TRG1, the MIC5302-2.5YMT-TR uniquely combines 50mV dropout, 120µVRMS noise, and 1.92mm² footprint-making it optimal for RF and imaging applications where both efficiency and spectral purity are simultaneously constrained.
Availability
MIC5302-2.5YMT-TR is available at Aetrix Electronics and suitable for mobile phone RF power stages, digital camera image sensor bias, and GPS receiver front-end designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MIC5302-2.5YMT-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 legacy LDO portfolio remains widely deployed in portable and industrial electronics.
The MIC5302 family was designed specifically for ultra-compact, low-noise, high-accuracy power regulation in battery-powered imaging, RF, and sensor subsystems-emphasizing minimal PCB area, zero-load stability, and robust thermal protection.
FAQ
What is the maximum input voltage rating for the MIC5302-2.5YMT-TR?
The MIC5302-2.5YMT-TR has an absolute maximum input voltage rating of +6V, but its recommended operating input voltage range is +2.3V to +5.5V. Exceeding 5.5V may trigger internal protection or cause reliability degradation. The device is commonly used with 3.3V or 3.6V Li-ion battery inputs, where the 2.5V output provides adequate headroom for low-noise analog circuitry.
Does the MIC5302-2.5YMT-TR require an external pull-up resistor on the EN pin?
Yes-the EN pin of the MIC5302-2.5YMT-TR is an active-high CMOS input and must not be left floating. A pull-up resistor to VIN (typically 100kΩ–1MΩ) ensures reliable turn-on during power-up. Leaving EN unconnected risks indeterminate output behavior due to leakage-induced logic ambiguity. The MIC5302-2.5YMT-TR draws <1µA on EN when high, making high-value pull-ups practical.
Can the MIC5302-2.5YMT-TR operate stably with a 0.47µF ceramic output capacitor?
No-the MIC5302-2.5YMT-TR requires a minimum 1.0µF ceramic output capacitor (X7R or X5R dielectric) for guaranteed stability across temperature and load. Using 0.47µF may cause high-frequency oscillation or degraded transient response, especially under step-load conditions. The datasheet explicitly specifies ≥1µF, and design validation was performed with 1µF; reducing capacitance voids stability assurance.
What is the thermal shutdown threshold of the MIC5302-2.5YMT-TR?
The MIC5302-2.5YMT-TR activates thermal shutdown when its junction temperature exceeds +125°C, as defined in its Absolute Maximum Ratings. Once triggered, the device disables output and remains off until junction temperature falls below the hysteresis threshold (~110°C). This protection is internal and non-latching-output resumes automatically after cooldown. The 173°C/W θJA value enables calculation of safe ambient limits based on power dissipation.
Is the MIC5302-2.5YMT-TR RoHS compliant and lead-free?
Yes-the MIC5302-2.5YMT-TR is supplied in a lead-free (RoHS-compliant) Thin MLF® package, as confirmed in the Ordering Information table and Package Information section of the official datasheet. The "YMT" suffix denotes Pb-free finish, and the device meets JEDEC J-STD-020 moisture sensitivity level (MSL) requirements for reflow assembly. No lead-containing variants exist for this part number.
MIC5302-2.5YMT-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):
- 2.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.1V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 120 µA
- Current - Supply (Max):
- -
- PSRR:
- 65dB ~ 42dB (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)
MIC5302-2.5YMT-TR FAQ
1.How can I place an order for MIC5302-2.5YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5302-2.5YMT-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 MIC5302-2.5YMT-TR reliable?
The price and inventory of MIC5302-2.5YMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5302-2.5YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5302-2.5YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5302-2.5YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5302-2.5YMT-TR?
MIC5302-2.5YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5302-2.5YMT-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 MIC5302-2.5YMT-TR?
For technical support, including MIC5302-2.5YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5302-2.5YMT-TR requirements.
6.How does Aetrix verify that MIC5302-2.5YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5302-2.5YMT-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 MIC5302-2.5YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5302-2.5YMT-TR?
All MIC5302-2.5YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5302-2.5YMT-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 MIC5302-2.5YMT-TR part is unused and in its original packaging.
Return procedure for MIC5302-2.5YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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