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Microchip Technology MIC5302-2.1YMT-TR
- Part No.:
- MIC5302-2.1YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 4-UFDFN Exposed Pad, 4-TMLF®
- Datasheet:
-
MIC5302-2.1YMT-TR.pdf
- Description:
- IC REG LINEAR 2.1V 150MA 4TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:4,485
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Product details
Overview
MIC5302-2.1YMT-TR from Micrel is a fixed 2.1V ultra-low dropout (ULDO™) CMOS linear regulator delivering up to 150mA with 50mV dropout at full load, 120µVRMS output noise, and ±2% initial output accuracy. It operates from 2.3V–5.5V input and targets space-constrained RF power stages in mobile phones and camera modules.
For engineers reviewing the MIC5302-2.1YMT-TR datasheet, MIC5302-2.1YMT-TR pinout, MIC5302-2.1YMT-TR application, or MIC5302-2.1YMT-TR equivalent, this page provides verified package mapping, thermal performance data across –40°C to +125°C, enable-controlled zero-off-mode operation, and ceramic-capacitor-stable design for portable imaging and wireless subsystems.
Technical Context
The MIC5302-2.1YMT-TR integrates a precision bandgap reference, error amplifier, and PMOS pass transistor in a single-stage LDO architecture. Its active-high enable input directly controls the pass device gate via internal logic, enabling fast 35µs turn-on while maintaining <0.1µA shutdown current.
Designed for high PSRR in RF-sensitive applications, it achieves 65dB ripple rejection below 1kHz and sustains stability with ≥1µF X7R ceramic output capacitors-no external compensation required. Thermal shutdown and foldback current limiting protect against sustained overloads at junction temperatures up to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.1V ±2% initial accuracy ensures stable biasing for 2.1V-tolerant image sensors and RF ICs without external feedback. |
| Dropout Voltage | 50mV at 150mA enables regulation from 2.15V input-critical for battery-powered systems operating near end-of-discharge. |
| Output Noise | 120µVRMS (10Hz–100kHz) minimizes phase noise coupling into RF front-ends and analog sensor signal chains. |
| Quiescent Current | 85µA typical ground current supports always-on functions like real-time clocks or memory backup with minimal battery drain. |
| Enable Threshold | Logic-high enable requires ≥1.1V; logic-low disable draws ≤2µA-compatible with 1.8V/3.3V GPIOs without level-shifting. |
| Thermal Resistance | θJA = 173°C/W in 1.2mm × 1.6mm Thin MLF® allows 150mA continuous output at ambient ≤104°C with minimum footprint layout. |
| Stability | Guaranteed stable with 1µF X7R ceramic output capacitor-eliminates need for tantalum or electrolytic alternatives. |
Pinout & Package
Package: 4-pin 1.2mm × 1.6mm Thin MLF® (MT) with exposed thermal pad (EPAD) internally 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 internal pass transistor gate; must be pulled high (>1.1V) for regulation or low (<0.2V) for zero-current shutdown-floating state prohibited. |
| 2 - GND | Power and signal ground reference | Connects to PCB ground plane and EPAD; serves as return path for load, quiescent, and enable currents. |
| 3 - VIN | Input supply terminal | Accepts 2.3V–5.5V; requires 1µF low-ESR ceramic bypass capacitor placed adjacent to pin for transient immunity. |
| 4 - VOUT | Regulated output terminal | Delivers 2.1V ±2% to load; connects to 1µF X7R ceramic output capacitor-no ESR requirements or series resistance needed. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | 1.2mm × 1.6mm Thin MLF® package reduces board area by 50% vs. SC-70-enables placement directly beneath camera modules or RF ICs. |
| Zero-off-mode shutdown | Draws ≤2µA when EN = low-preserves battery life in sleep modes of portable media players and GPS receivers. |
| RF-optimized noise performance | 120µVRMS output noise and 65dB PSRR below 1kHz prevent clock jitter and SNR degradation in RF transceivers and CMOS image sensors. |
| Ceramic-capacitor-only stability | No external compensation required with ≥1µF X7R ceramic output capacitor-reduces BOM count and eliminates ESR tuning. |
| Wide temperature operation | Specified from –40°C to +125°C junction temperature-supports under-hood automotive camera modules and industrial handheld scanners. |
Applications
| Mobile Phone RF Power Stage | Digital Camera Image Sensor Bias |
|---|---|
Use Scenario: Powers RF power amplifier bias circuitry in LTE/5G handsets where input voltage sags to 2.3V during peak transmit bursts. IC Role / Device Role / Timing Role: ULDO regulator providing clean, low-noise 2.1V supply to PA driver stage with sub-50mV headroom margin. Use Value: Maintains PA linearity and EVM performance despite battery voltage droop-no brownout-induced transmission errors. |
Use Scenario: Supplies analog core voltage to 12MP+ CMOS image sensors in smartphones and action cameras. IC Role / Device Role / Timing Role: Low-noise, fast-turn-on LDO delivering stable 2.1V for sensor analog front-end and ADC reference. Use Value: Prevents fixed-pattern noise and temporal noise in raw image data by suppressing supply-induced pixel variation. |
| Portable GPS Receiver Front-End | Industrial Barcode Scanner Core Logic |
Use Scenario: Powers GNSS RF frontend ICs (e.g., MAX2769, u-blox UBX-M8) in battery-operated asset trackers. IC Role / Device Role / Timing Role: Ultra-low-noise 2.1V source for LNA and mixer stages to maximize C/N₀ ratio and cold-start sensitivity. Use Value: Enables -160dBm acquisition sensitivity by reducing phase noise contribution from power supply to <0.1° RMS jitter. |
Use Scenario: Regulates 2.1V supply for ARM Cortex-M4 microcontroller and laser diode driver in rugged handheld scanners. IC Role / Device Role / Timing Role: High-accuracy, thermally robust LDO supporting continuous scanning at ambient temperatures up to +85°C. Use Value: Ensures deterministic boot timing and flash programming reliability across extended temperature cycling without output drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-noise LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B212MR-G | 2.1V fixed output, 100mA max, 150mV dropout at 100mA, 40µVRMS noise, SOT-25 package (2.9mm × 2.8mm) | Lower noise but 33% lower current rating and 3.7× larger footprint-unsuitable for 150mA camera sensor rails. | Select when ultra-low noise dominates over current capability and board space is not constrained. |
| Analog Devices ADP160ACBZ-2.1-R7 | 2.1V fixed output, 150mA max, 195mV dropout at 150mA, 25µVRMS noise, 5-pin TSOT-23 package | Superior noise and PSRR but higher dropout limits use below 2.3V input; requires 2.2µF output capacitor. | Select for ultra-sensitive RF receivers where 25µV noise justifies larger dropout penalty and extra capacitance. |
Compared with XC6219B212MR-G and ADP160ACBZ-2.1-R7, the MIC5302-2.1YMT-TR uniquely balances 150mA delivery, 50mV dropout, and 120µVRMS noise in a 1.92mm² footprint-making it optimal for space-limited, battery-voltage-critical imaging and RF subsystems.
Availability
MIC5302-2.1YMT-TR is available at Aetrix Electronics and suitable for mobile phone RF power stages, digital camera image sensor biasing, and portable GPS receiver front-ends requiring stable component supply with guaranteed RoHS-compliant lead-free packaging.
Supply support for MIC5302-2.1YMT-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 fabless semiconductor company specializing in high-performance analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015.
The MIC5302-2.1YMT-TR belongs to Micrel's ULDO™ family-designed specifically for portable electronics demanding ultra-small size, ultra-low noise, and ultra-low dropout in battery-powered imaging and RF subsystems.
FAQ
What is the maximum output current supported by the MIC5302-2.1YMT-TR?
The MIC5302-2.1YMT-TR delivers up to 150mA of guaranteed continuous output current across –40°C to +125°C junction temperature. This rating is validated with proper thermal layout using the exposed pad and adhering to θJA = 173°C/W. At 150mA and 2.3V input, dropout remains within specification at 50mV.
Does the MIC5302-2.1YMT-TR require an external output capacitor, and what type is recommended?
Yes, the MIC5302-2.1YMT-TR requires a minimum 1µF output capacitor for stability. X7R dielectric ceramic capacitors are explicitly recommended due to their ±15% capacitance tolerance over temperature-ensuring consistent regulation across –40°C to +125°C. Z5U or Y5V types are discouraged due to >50% capacitance loss at temperature extremes.
How does the enable function operate on the MIC5302-2.1YMT-TR, and what happens in shutdown mode?
The MIC5302-2.1YMT-TR features an active-high enable pin (EN). When EN ≥ 1.1V, the regulator powers up with 35µs typical turn-on time; when EN ≤ 0.2V, it enters zero-off-mode drawing ≤2µA total current. The EN pin must never be left floating-it requires a defined logic level to avoid indeterminate output states.
Can the MIC5302-2.1YMT-TR be used with input voltages below 2.3V?
No-the MIC5302-2.1YMT-TR has a specified minimum input voltage of 2.3V per its Absolute Maximum Ratings and Operating Ratings tables. Operation below 2.3V is not characterized and may result in unregulated output, increased dropout, or failure to maintain 2.1V ±2% accuracy. For sub-2.3V applications, consider alternative regulators with lower VIN(min).
What thermal considerations apply when using the MIC5302-2.1YMT-TR at full 150mA load?
At 150mA with 2.3V input and 2.1V output, power dissipation is ~30mW. With θJA = 173°C/W and TJ(max) = +125°C, the maximum allowable ambient temperature is ~123°C-well above typical operating conditions. However, PCB layout must include the EPAD soldered to a thermal copper pour to achieve rated θJA.
MIC5302-2.1YMT-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):
- 2.1V
- 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)
MIC5302-2.1YMT-TR FAQ
1.How can I place an order for MIC5302-2.1YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5302-2.1YMT-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 MIC5302-2.1YMT-TR reliable?
The price and inventory of MIC5302-2.1YMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5302-2.1YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5302-2.1YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5302-2.1YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5302-2.1YMT-TR?
MIC5302-2.1YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5302-2.1YMT-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 MIC5302-2.1YMT-TR?
For technical support, including MIC5302-2.1YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5302-2.1YMT-TR requirements.
6.How does Aetrix verify that MIC5302-2.1YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5302-2.1YMT-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 MIC5302-2.1YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5302-2.1YMT-TR?
All MIC5302-2.1YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5302-2.1YMT-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 MIC5302-2.1YMT-TR part is unused and in its original packaging.
Return procedure for MIC5302-2.1YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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