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Microchip Technology MIC5302-1.5YMT-TR
- Part No.:
- MIC5302-1.5YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 4-UFDFN Exposed Pad, 4-TMLF®
- Datasheet:
-
MIC5302-1.5YMT-TR.pdf
- Description:
- IC REG LINEAR 1.5V 150MA 4TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:1,194
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Product details
Overview
MIC5302-1.5YMT-TR from Micrel is a fixed 1.5V, 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 sensor biasing in space-constrained portable electronics.
For engineers reviewing the MIC5302-1.5YMT-TR datasheet, MIC5302-1.5YMT-TR pinout, MIC5302-1.5YMT-TR application, or MIC5302-1.5YMT-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 PCB footprint reduction versus SC-70.
Technical Context
The MIC5302-1.5YMT-TR integrates a CMOS pass element with error amplifier, thermal shutdown, and current-limit protection. Its quick-start architecture enables 35µs turn-on time with 1µF output capacitance, and its ground current remains stable at 85µA across 0–150mA load range.
It uses an active-high enable input (EN) referenced to VIN, requiring no external pull-up; logic high ≥1.1V enables regulation, while logic low ≤0.2V forces near-zero shutdown current. The exposed pad (EPAD) is internally connected to GND for thermal conduction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5V ±2% initial accuracy - ensures precise biasing for low-voltage analog sensors and RF front-end ICs. |
| Max Output Current | 150mA guaranteed - supports camera modules and GPS receivers without derating at +125°C junction. |
| Dropout Voltage | 50mV at 150mA - enables operation with only 1.55V input, critical for single-cell Li-ion or coin-cell systems. |
| Output Noise | 120µVRMS (10Hz–100kHz) - minimizes phase noise in RF LDO applications such as cellular transceivers. |
| Quiescent Current | 85µA total - maintains efficiency in always-on subsystems like real-time clocks or keep-alive memory rails. |
| Shutdown Current | <2µA - eliminates battery drain during deep sleep modes in portable media players and PDA standby. |
| Input Voltage Range | 2.3V to 5.5V - compatible with wide-input DC-DC outputs and multi-cell battery configurations. |
Pinout & Package
Package: 4-pin 1.2mm × 1.6mm Thin MLF® (MT) with exposed thermal pad (EPAD) internally tied to GND. Total PCB area: 1.92mm² - 50% smaller than SC-70 and 2mm × 2mm MLF® packages.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Enable input | Active-high CMOS control; must be driven - floating state causes indeterminate output. Draws <1µA when enabled. |
| 2 - GND | Ground reference | Primary return path for load and quiescent current; EPAD connects internally to this pin for thermal dissipation. |
| 3 - VIN | Supply input | Accepts 2.3V–5.5V; requires 1µF low-ESR ceramic bypass capacitor placed adjacent to pin. |
| 4 - VOUT | Regulated output | Delivers stable 1.5V; requires ≥1µF X7R/X5R ceramic capacitor for stability - no minimum load required. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | 1.2mm × 1.6mm Thin MLF® package occupies only 1.92mm² - enables placement under camera modules or near RF ICs. |
| Zero-off-mode shutdown | Draws <2µA when EN = low - extends battery life in GPS receivers during periodic wake/sleep cycles. |
| Ceramic-capacitor stability | Stable with ≥1µF X7R/X5R ceramics - eliminates need for tantalum or electrolytic capacitors in portable designs. |
| Low-noise regulation | 120µVRMS output noise - preserves SNR in image sensors and ADC reference rails without additional filtering. |
| Fast turn-on response | 35µs rise time with 1µF COUT - meets timing requirements of burst-mode camera autofocus and flash charging circuits. |
Applications
| RF Power Stage Biasing | Digital Camera Sensor Supply |
|---|---|
|
Use Scenario: Providing clean, low-noise 1.5V bias to power amplifier driver stages in GSM/UMTS front-ends. IC Role / Device Role / Timing Role: Ultra-low-noise LDO delivering stable rail to RF transistor bias networks. Use Value: 120µVRMS noise and 50mV dropout preserve PA linearity and EVM performance while enabling single-cell operation. |
Use Scenario: Supplying image sensor analog core and PLL circuitry in compact digital still/video cameras. IC Role / Device Role / Timing Role: Precision voltage source for sensor pixel array and clock generation blocks. Use Value: ±2% output accuracy and no-load stability ensure consistent exposure calibration and frame synchronization. |
| GPS Receiver Front-End | Portable Media Player Codec Rail |
|
Use Scenario: Powering low-noise amplifiers and downconverters in handheld GPS modules operating from Li-ion batteries. IC Role / Device Role / Timing Role: Low-dropout regulator maintaining 1.5V supply under dynamic input sag during satellite acquisition bursts. Use Value: 85µA quiescent current and 35µs startup support rapid TTFF (Time-To-First-Fix) without compromising battery runtime. |
Use Scenario: Delivering regulated 1.5V to audio DACs and headphone amplifiers in flash-based media players. IC Role / Device Role / Timing Role: High-PSRR LDO isolating sensitive analog audio paths from noisy digital supply domains. Use Value: 65dB ripple rejection up to 1kHz suppresses switching noise from DC-DC converters feeding digital subsystems. |
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 XC6206P152MR | 150mA, 1.5V, 120mV dropout at 150mA; SOT-25 package (2.9mm²) | Larger footprint and higher dropout limit use in tighter input-margin designs | Select when board layout allows SOT-25 and lower cost is prioritized over minimal size/noise |
| Ricoh RP108L151B-TR | 150mA, 1.5V, 80mV dropout at 150mA; 1.2mm × 1.6mm DFN package, 150µVRMS noise | Higher output noise and slightly larger dropout reduce suitability for RF-sensitive loads | Choose when thermal performance under 125°C ambient is primary concern and noise margin is relaxed |
Compared with XC6206P152MR and RP108L151B-TR, the MIC5302-1.5YMT-TR provides the smallest PCB footprint (1.92mm²), lowest dropout (50mV), and lowest noise (120µVRMS) - making it optimal for RF and imaging applications where space, efficiency, and signal integrity are co-constrained.
Availability
MIC5302-1.5YMT-TR is available at Aetrix Electronics and suitable for mobile phone RF modules, digital camera sensor rails, and GPS receiver front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MIC5302-1.5YMT-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. Known for high-performance LDOs and Ethernet PHYs.
The MIC5302-1.5YMT-TR belongs to Micrel's ULDO™ family - engineered specifically for ultra-low-noise, ultra-small-footprint regulation in battery-powered imaging, RF, and portable consumer electronics.
FAQ
What is the maximum input voltage rating for the MIC5302-1.5YMT-TR?
The MIC5302-1.5YMT-TR has an absolute maximum input voltage rating of +6V, but its recommended operating input range is +2.3V to +5.5V. Exceeding 5.5V may trigger internal protection or cause reliability degradation. The device is designed for single-cell Li-ion, dual-cell alkaline, or post-regulated DC-DC outputs - not direct connection to unregulated wall adapters.
Does the MIC5302-1.5YMT-TR require an external pull-up resistor on the EN pin?
No, the MIC5302-1.5YMT-TR does not require an external pull-up on the EN pin. Its enable input uses CMOS logic with defined thresholds (VIH ≥1.1V, VIL ≤0.2V) and draws <1µA. However, the EN pin must never be left floating - it must be actively driven high or low by a microcontroller GPIO or dedicated enable signal to avoid indeterminate output states.
Can the MIC5302-1.5YMT-TR operate stably with no load connected to VOUT?
Yes, the MIC5302-1.5YMT-TR remains stable and in regulation with zero load - a key differentiator from many legacy LDOs. This capability is essential for applications like CMOS RAM keep-alive rails or always-on sensor biasing where intermittent loading occurs. No minimum load capacitor or resistor is required for stability.
What type of output capacitor is recommended for the MIC5302-1.5YMT-TR?
The MIC5302-1.5YMT-TR is optimized for 1µF X7R or X5R ceramic capacitors with low ESR. These dielectrics provide stable capacitance over temperature (±15% for X7R), ensuring consistent loop stability. Y5V or Z5U types are discouraged due to >50% capacitance loss over temperature, which risks oscillation or poor transient response.
Is the exposed pad (EPAD) on the MIC5302-1.5YMT-TR electrically isolated or grounded?
The exposed pad (EPAD) on the MIC5302-1.5YMT-TR is internally connected to the GND pin and must be soldered to a PCB thermal pad tied to the system ground plane. This connection provides both electrical grounding and thermal conduction - omitting it degrades thermal resistance from 173°C/W to >250°C/W and risks thermal shutdown under 150mA load at elevated ambient temperatures.
MIC5302-1.5YMT-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):
- 1.5V
- 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)
MIC5302-1.5YMT-TR FAQ
1.How can I place an order for MIC5302-1.5YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5302-1.5YMT-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 MIC5302-1.5YMT-TR reliable?
The price and inventory of MIC5302-1.5YMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5302-1.5YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5302-1.5YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5302-1.5YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5302-1.5YMT-TR?
MIC5302-1.5YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5302-1.5YMT-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 MIC5302-1.5YMT-TR?
For technical support, including MIC5302-1.5YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5302-1.5YMT-TR requirements.
6.How does Aetrix verify that MIC5302-1.5YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5302-1.5YMT-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 MIC5302-1.5YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5302-1.5YMT-TR?
All MIC5302-1.5YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5302-1.5YMT-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 MIC5302-1.5YMT-TR part is unused and in its original packaging.
Return procedure for MIC5302-1.5YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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