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Microchip Technology MIC5302-2.9YMT-TR
- Part No.:
- MIC5302-2.9YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 4-UFDFN Exposed Pad, 4-TMLF®
- Datasheet:
-
MIC5302-2.9YMT-TR.pdf
- Description:
- IC REG LINEAR 2.9V 150MA 4TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:4,798
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Product details
Overview
MIC5302-2.9YMT-TR from Micrel is a fixed 2.9V, 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 in mobile phones and camera modules where board space and noise sensitivity are critical.
For engineers reviewing the MIC5302-2.9YMT-TR datasheet, MIC5302-2.9YMT-TR pinout, MIC5302-2.9YMT-TR application, or MIC5302-2.9YMT-TR equivalent, key selection criteria include dropout voltage at 150mA, zero-off-mode shutdown current (<2µA), thermal shutdown behavior, ceramic capacitor stability, and 1.92mm² footprint constraints in portable imaging and RF subsystems.
Technical Context
The MIC5302-2.9YMT-TR uses a CMOS pass element with error amplifier feedback to maintain regulation under fast load transients (35µs turn-on time). Its internal reference and quick-start circuit enable stable startup into pre-biased outputs without reverse current flow.
It integrates thermal shutdown and foldback current limiting (250–725mA trip range), with ground current tightly regulated at 85µA typical across 0–150mA load. The EN pin is CMOS-compatible, requiring active pull-up/down-no floating state permitted.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.9V ±2% initial accuracy ensures precise biasing for 2.8–3.0V nominal analog/RF ICs without external feedback. |
| Max Output Current | 150mA guaranteed continuous output supports camera sensor AVDD rails and low-power RF amplifiers. |
| Dropout Voltage | 50mV at 150mA enables operation with only 3.0V input for 2.9V output-critical for battery-powered systems near end-of-discharge. |
| Output Noise | 120µVRMS (10Hz–100kHz) minimizes phase noise in VCOs and jitter in high-speed image sensor clocks. |
| Quiescent Current | 85µA total ground current maintains efficiency in always-on keep-alive circuits (e.g., RTC, CMOS RAM). |
| Shutdown Current | <2µA in disable mode eliminates standby drain in sleep-state camera modules and GPS receivers. |
| Input Voltage Range | 2.3V–5.5V accommodates single-cell Li-ion (2.7–4.2V), Li-poly, or regulated 3.3V/5V system rails. |
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 | CMOS logic-level control; must be pulled high (>1.1V) to enable output, low (<0.2V) to enter zero-current shutdown-no floating allowed. |
| 2 - GND | Ground reference and thermal path | Primary return for load and quiescent current; EPAD internally tied to this pin for enhanced thermal dissipation. |
| 3 - VIN | Regulator input supply | Accepts 2.3V–5.5V; requires ≥1µF low-ESR ceramic bypass capacitor placed adjacent to pin for stability. |
| 4 - VOUT | Regulated output | Delivers fixed 2.9V; stable with ≥1µF X7R/X5R ceramic output capacitor-no minimum load required. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | 1.2mm × 1.6mm Thin MLF® package reduces PCB area by 50% vs. SC-70-enables placement directly beneath camera modules. |
| Low-noise regulation | 120µVRMS output noise preserves signal integrity in RF front-end biasing and high-resolution image sensor analog chains. |
| Zero-off-mode shutdown | Sub-2µA shutdown current eliminates battery leakage in GPS receivers and PMP standby modes. |
| Ceramic capacitor compatibility | Stable with 1µF X7R/X5R output capacitors-no tantalum or electrolytic required, reducing BOM count and height. |
| Fast transient response | 35µs turn-on time and robust load transient recovery support burst-mode camera operation without brownout. |
Applications
| Mobile Phone RF Power Stage | Digital Camera Image Sensor Bias |
|---|---|
Use Scenario: Supplying clean, low-noise 2.9V bias to power amplifier driver stages in LTE/WCDMA front-ends. IC Role / Device Role / Timing Role: Ultra-low-noise LDO delivering stable VPA rail with minimal PSRR-induced AM-to-PM distortion. Use Value: 120µVRMS noise and 65dB ripple rejection at 1kHz prevent EVM degradation in 256-QAM transmission. |
Use Scenario: Providing regulated 2.9V AVDD to CMOS image sensors in smartphone rear cameras. IC Role / Device Role / Timing Role: Low-dropout regulator maintaining rail integrity during rapid pixel readout bursts (150mA peak). Use Value: 50mV dropout at 150mA allows operation down to 3.0V input-extending usable battery voltage range by ~120mV. |
| Portable Media Player Audio Codec | GPS Receiver LNA Bias |
Use Scenario: Powering stereo audio DAC/ADC analog sections in PMPs where switching noise must be avoided. IC Role / Device Role / Timing Role: Low-quiescent, low-noise linear regulator replacing inefficient buck-boost + LDO cascades. Use Value: 85µA ground current and no-load stability reduce idle power by >30% versus legacy solutions. |
Use Scenario: Supplying 2.9V bias to low-noise amplifier (LNA) stages in miniaturized GPS modules. IC Role / Device Role / Timing Role: High-PSRR, thermally robust LDO ensuring consistent LNA gain across –40°C to +125°C ambient. Use Value: ±3% output accuracy over temperature and thermal shutdown protect against LNA saturation during hot-plug 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 XC6219B292MR-G | 2.9V fixed, 150mA, 60mV dropout @150mA, 20µVRMS noise, SOT-25 package (2.9mm²) | Larger footprint, lower noise-but lacks EN pin and thermal shutdown | Select when ultra-low noise dominates over enable control and fault protection. |
| Richtek RT9013-29GB | 2.9V fixed, 300mA, 120mV dropout @300mA, 40µVRMS noise, SOT-23-5 package (6.3mm²) | Higher current, larger size, no zero-off-mode shutdown (<1µA but not specified as "zero") | Select when higher output current is needed and PCB area is less constrained. |
Compared with MIC5302-2.9YMT-TR, the XC6219B292MR-G offers lower noise but sacrifices enable functionality and thermal safety; the RT9013-29GB provides higher current headroom at the cost of 3.3× larger footprint and reduced dropout efficiency at 150mA.
Availability
MIC5302-2.9YMT-TR is available at Aetrix Electronics and suitable for mobile phone RF power stages, digital camera image sensor bias, and GPS receiver LNA bias requiring stable component supply with RoHS-compliant, lead-free packaging and guaranteed 150mA delivery.
Supply support for MIC5302-2.9YMT-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. Known for high-performance LDOs and Ethernet PHYs.
The MIC5302 series was designed specifically for space-constrained, noise-sensitive portable electronics-including cellular RF sections and imaging subsystems-where ultra-small footprint, sub-100µA quiescent current, and <150µVRMS noise are mandatory.
FAQ
What is the dropout voltage of the MIC5302-2.9YMT-TR at 150mA load?
The MIC5302-2.9YMT-TR has a guaranteed dropout voltage of 50mV at 150mA output current, measured as the VIN–VOUT differential at which VOUT drops 2% below nominal. This enables reliable operation with input as low as 2.95V while delivering 2.9V-critical for Li-ion battery applications nearing end-of-discharge.
Does the MIC5302-2.9YMT-TR require an external pull-up resistor on the EN pin?
Yes-the EN pin of the MIC5302-2.9YMT-TR is CMOS-input and must never be left floating. A pull-up resistor to VIN (or compatible logic rail) ensures deterministic startup; typical values range from 100kΩ to 1MΩ depending on system noise immunity requirements. Leaving EN unconnected risks indeterminate output state.
Can the MIC5302-2.9YMT-TR operate without any load connected to VOUT?
Yes-the MIC5302-2.9YMT-TR remains stable and in regulation with zero load, unlike many older LDO architectures. This no-load stability is essential for CMOS RAM keep-alive rails and always-on sensor bias applications where intermittent loading occurs.
What type of output capacitor is recommended for the MIC5302-2.9YMT-TR?
X7R or X5R dielectric 1µF ceramic capacitors are recommended for the MIC5302-2.9YMT-TR output. These provide optimal ESR, temperature stability (±15% capacitance shift), and size efficiency. Y5V/Z5U types are discouraged due to >50% capacitance loss over temperature, risking instability.
Is the MIC5302-2.9YMT-TR RoHS compliant and lead-free?
Yes-the MIC5302-2.9YMT-TR is supplied in a lead-free (RoHS-compliant) Thin MLF® package per the ordering information table. The "YMT" suffix explicitly denotes Pb-free finish, and the device meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) requirements.
MIC5302-2.9YMT-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):
- 2.9V
- 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)
MIC5302-2.9YMT-TR FAQ
1.How can I place an order for MIC5302-2.9YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5302-2.9YMT-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 MIC5302-2.9YMT-TR reliable?
The price and inventory of MIC5302-2.9YMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5302-2.9YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5302-2.9YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5302-2.9YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5302-2.9YMT-TR?
MIC5302-2.9YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5302-2.9YMT-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 MIC5302-2.9YMT-TR?
For technical support, including MIC5302-2.9YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5302-2.9YMT-TR requirements.
6.How does Aetrix verify that MIC5302-2.9YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5302-2.9YMT-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 MIC5302-2.9YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5302-2.9YMT-TR?
All MIC5302-2.9YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5302-2.9YMT-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 MIC5302-2.9YMT-TR part is unused and in its original packaging.
Return procedure for MIC5302-2.9YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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