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Microchip Technology MIC5301-4.6YMT-TR
- Part No.:
- MIC5301-4.6YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 6-UFDFN Exposed Pad, 6-TMLF®
- Datasheet:
-
MIC5301-4.6YMT-TR.pdf
- Description:
- IC REG LINEAR 4.6V 150MA 6TMLF
- Quantity:
- Payment:
- Shipping:
Inventory:3,211
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Product details
Overview
MIC5301-4.6YMT-TR from Micrel is a fixed-output 4.6V ultra-low dropout (ULDO™) linear regulator delivering 150mA output current with 40mV dropout at full load, ±2% initial output accuracy, and 30µVRMS output noise - designed for RF-sensitive battery-powered systems such as GPS receivers and portable cameras.
For engineers reviewing the MIC5301-4.6YMT-TR datasheet, MIC5301-4.6YMT-TR pinout, MIC5301-4.6YMT-TR application, or MIC5301-4.6YMT-TR equivalent, key selection criteria include its 2.3V–5.5V input range, zero-off-mode shutdown (<2µA), 1.6mm × 1.6mm Thin MLF® package, and compatibility with 1µF ceramic output capacitors without external compensation.
Technical Context
The MIC5301-4.6YMT-TR integrates a CMOS-based error amplifier, thermal shutdown, and current limit protection in a single-stage LDO architecture. Its reference bypass (BYP) pin accepts a 0.01µF capacitor to reduce output noise by stabilizing the internal bandgap reference.
It operates across –40°C to +125°C junction temperature with 100°C/W θJA, supports active-high enable control (EN), and maintains regulation down to zero load - eliminating need for dummy loads in keep-alive applications like CMOS RAM backup.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 4.6V ±2% (initial), ±3% over –40°C to +125°C - ensures stable supply for 4.5V–4.7V logic rails. |
| Dropout Voltage | 40mV @ 150mA - enables operation with only 4.64V input, critical for single-cell Li-ion or dual-cell alkaline systems. |
| Output Noise | 30µVRMS (10Hz–100kHz) - low enough for RF front-end biasing without additional filtering. |
| PSRR | 75dB @ 1kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Quiescent Current | 85µA typical - extends battery life in always-on portable devices with intermittent active periods. |
| Enable Threshold | Logic-high EN ≥1V, logic-low EN ≤0.2V - compatible with 1.8V/3.3V GPIO without level-shifting. |
| Shutdown Current | <2µA - achieves true zero-power state when disabled, essential for long-term storage modes. |
Pinout & Package
Package: 6-pin 1.6mm × 1.6mm Thin MLF® (RoHS-compliant, NiPdAu lead finish, exposed heatsink pad connected to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - EN | Enable input | Active-high digital control; must be pulled high (>1V) to activate output; floating prohibited. |
| 2 - GND | Ground reference | Primary return path for load and internal circuitry; connects to exposed heatsink pad. |
| 3 - VIN | Input supply | Accepts 2.3V–5.5V; requires 1µF ceramic bypass to GND for stability. |
| 4 - OUT | Regulated output | Delivers 4.6V ±2% to load; stable with ≥1µF X7R/X5R ceramic capacitor. |
| 5 - NC | No connection | Internally unconnected; no external tie required. |
| 6 - BYP | Reference bypass | Connects 0.01µF capacitor to GND to reduce output noise and improve PSRR. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low dropout | 40mV @ 150mA enables use with minimal input headroom - e.g., 4.64V input sustains 4.6V output under full load. |
| Ceramic-capacitor stability | Stable with ≥1µF X7R/X5R ceramic output capacitor - eliminates need for tantalum or electrolytic parts. |
| Low-noise regulation | 30µVRMS output noise with 0.01µF BYP capacitor - meets stringent RF IC power-supply requirements. |
| Zero-off-mode shutdown | Draws <2µA when EN = low - preserves battery charge during extended sleep or storage intervals. |
| No-load regulation | Maintains regulation with 0mA load - supports CMOS RAM keep-alive and other ultra-low-power standby functions. |
Applications
| GPS Receivers | Digital Still Cameras |
|---|---|
Use Scenario: Powering GPS baseband ICs and RF front-end LNAs requiring clean, stable 4.6V supply. IC Role / Device Role / Timing Role: Low-noise voltage regulator providing bias for sensitive analog RF sections. Use Value: 30µVRMS noise and 75dB PSRR prevent degradation of GPS signal acquisition sensitivity and tracking accuracy. |
Use Scenario: Supplying image sensor interface circuitry and flash memory controllers in compact camera modules. IC Role / Device Role / Timing Role: Fixed-output LDO delivering precise 4.6V to high-speed digital interfaces. Use Value: ±2% output accuracy ensures reliable operation of 4.5V–4.7V I/O domains without margin loss. |
| Portable Medical Sensors | Handheld Test Equipment |
Use Scenario: Powering low-power analog front-ends in wearable ECG or pulse oximetry units. IC Role / Device Role / Timing Role: Ultra-low-quiescent LDO enabling multi-week battery life in always-on monitoring mode. Use Value: 85µA ground current and zero-off-mode shutdown extend coin-cell or small Li-ion runtime significantly. |
Use Scenario: Regulating supply for precision ADC references and microcontroller peripherals in field-deployable meters. IC Role / Device Role / Timing Role: High-accuracy, thermally robust LDO supporting measurement integrity across –40°C to +85°C ambient. Use Value: ±3% output tolerance over full temperature range maintains calibration stability without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-dropout regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1801T-4602E/OT | 4.6V fixed, 150mA, 190mV dropout @ 150mA, SOT-23-5 package, 120µA quiescent current | Higher dropout limits use in low-headroom battery systems; larger package increases board area | Select when cost sensitivity outweighs dropout and noise performance; verify thermal derating at 150mA. |
| TCS2117-4600MV | 4.6V fixed, 200mA, 60mV dropout @ 150mA, 1.6mm × 1.6mm DFN, 100µVRMS noise | Higher noise degrades RF performance; slightly higher dropout reduces margin in Li-ion discharge tail | Choose only if 200mA output capability is required; confirm noise filtering suffices for target RF ICs. |
Compared with MCP1801T-4602E/OT and TCS2117-4600MV, the MIC5301-4.6YMT-TR delivers superior dropout (40mV vs. ≥60mV), lower noise (30µVRMS vs. ≥100µVRMS), and smaller footprint - making it optimal for space-constrained, noise-sensitive, single-cell battery designs.
Availability
MIC5301-4.6YMT-TR is available at Aetrix Electronics and suitable for GPS receivers, portable medical sensors, handheld test equipment, digital still cameras, and other applications requiring stable component supply with guaranteed long-term availability.
Supply support for MIC5301-4.6YMT-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 MIC5301 family was designed specifically for ultra-low-noise, ultra-low-dropout regulation in portable RF and battery-critical systems - emphasizing minimal board area, zero-load stability, and sub-100µA quiescent operation.
FAQ
What is the maximum input voltage rating for the MIC5301-4.6YMT-TR?
The MIC5301-4.6YMT-TR has an absolute maximum input voltage (VIN) rating of +6V. However, its operational input range is specified from +2.3V to +5.5V. Exceeding 5.5V may cause functional failure or damage, even if below the 6V absolute maximum - always maintain VIN within 2.3V–5.5V for reliable operation of the MIC5301-4.6YMT-TR.
Does the MIC5301-4.6YMT-TR require an external bypass capacitor on the BYP pin?
The MIC5301-4.6YMT-TR does not require the BYP pin to be used, but connecting a 0.01µF capacitor from BYP to GND reduces output noise to 30µVRMS and improves PSRR. Leaving BYP open results in higher noise (typically ~50µVRMS) - so for RF or precision analog applications, the 0.01µF capacitor is strongly recommended for the MIC5301-4.6YMT-TR.
Can the MIC5301-4.6YMT-TR operate with no load connected to the OUT pin?
Yes, the MIC5301-4.6YMT-TR remains stable and in regulation with zero load - a key differentiator from many LDOs that require minimum load current. This makes the MIC5301-4.6YMT-TR ideal for CMOS RAM keep-alive circuits, real-time clocks, and other ultra-low-power standby functions where load current drops to 0µA.
What is the thermal resistance (θJA) of the MIC5301-4.6YMT-TR package?
The MIC5301-4.6YMT-TR uses the 6-pin 1.6mm × 1.6mm Thin MLF® package with a junction-to-ambient thermal resistance (θJA) of 100°C/W under standard PCB footprint conditions. This value assumes proper soldering of the exposed heatsink pad to a thermal land - inadequate copper area will increase θJA and reduce safe operating current for the MIC5301-4.6YMT-TR.
Is the MIC5301-4.6YMT-TR RoHS compliant and lead-free?
Yes, the MIC5301-4.6YMT-TR is RoHS compliant and lead-free. Per the datasheet, the Thin MLF® package uses NiPdAu lead finish and halogen-free mold compound - fully meeting EU RoHS Directive 2011/65/EU requirements. The "-TR" suffix indicates tape-and-reel packaging compatible with automated assembly for the MIC5301-4.6YMT-TR.
MIC5301-4.6YMT-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 6-UFDFN Exposed Pad, 6-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):
- 4.6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.1V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 120 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB ~ 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:
- 6-TMLF® (1.6x1.6)
MIC5301-4.6YMT-TR FAQ
1.How can I place an order for MIC5301-4.6YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5301-4.6YMT-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 MIC5301-4.6YMT-TR reliable?
The price and inventory of MIC5301-4.6YMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5301-4.6YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5301-4.6YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5301-4.6YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5301-4.6YMT-TR?
MIC5301-4.6YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5301-4.6YMT-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 MIC5301-4.6YMT-TR?
For technical support, including MIC5301-4.6YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5301-4.6YMT-TR requirements.
6.How does Aetrix verify that MIC5301-4.6YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5301-4.6YMT-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 MIC5301-4.6YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5301-4.6YMT-TR?
All MIC5301-4.6YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5301-4.6YMT-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 MIC5301-4.6YMT-TR part is unused and in its original packaging.
Return procedure for MIC5301-4.6YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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