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Microchip Technology MIC5501-3.0YMT-TR
- Part No.:
- MIC5501-3.0YMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 4-UDFN Exposed Pad
- Datasheet:
-
MIC5501-3.0YMT-TR.pdf
- Description:
- IC REG LINEAR 3V 300MA 4TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,662
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Product details
Overview
MIC5501-3.0YMT-TR from Microchip Technology is a 3.0V fixed-output, 300 mA low-dropout linear regulator in a 4-lead 1.0 mm × 1.0 mm thin DFN package. It delivers ±2% output accuracy, 160 mV dropout at full load, and 38 μA quiescent current, enabling stable power for battery-sensitive portable electronics such as medical wearables and GPS modules.
For engineers reviewing the MIC5501-3.0YMT-TR datasheet, MIC5501-3.0YMT-TR pinout, MIC5501-3.0YMT-TR application, or MIC5501-3.0YMT-TR equivalent, key selection criteria include guaranteed 300 mA output under 2.5–5.5 V input, stability with 1 μF ceramic capacitors, thermal shutdown protection, and compatibility with –40°C to +125°C industrial operating conditions.
Technical Context
The MIC5501-3.0YMT-TR implements a CMOS-based LDO architecture optimized for ultra-low quiescent current and fast transient response. Its internal reference and error amplifier maintain tight regulation across temperature and load, with line regulation of 0.3%/V and load regulation up to 40 mV from 100 μA to 300 mA.
Unlike MIC5502/5504 variants, it lacks auto-discharge and EN pull-down features-EN must be actively driven high to enable operation. The device enters zero-off-mode (<1 μA shutdown current) when EN is low, and remains stable with no load-a critical trait for CMOS RAM keep-alive circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±2% over –40°C to +125°C; ensures precise biasing for 3.0 V logic rails and analog sensors. |
| Max Output Current | 300 mA guaranteed; supports moderate-power microcontrollers, RF front-ends, and display drivers without derating. |
| Input Voltage Range | 2.5 V to 5.5 V; compatible with single-cell Li-ion (3.0–4.2 V), USB-powered (5 V), and dual-cell alkaline systems. |
| Dropout Voltage | 160 mV @ 300 mA; enables >95% efficiency at 3.3 V input, extending battery runtime in portable designs. |
| Quiescent Current | 38 μA typical; minimizes standby power loss in always-on subsystems like real-time clocks or wake-on-event circuits. |
| Stability | Stable with ≥1 μF ceramic output capacitor; eliminates need for bulky tantalum or electrolytic caps, reducing board area and cost. |
| Thermal Protection | Integrated thermal shutdown and current limiting; prevents damage during overload or poor PCB heatsinking. |
Pinout & Package
Package: 4-Lead 1.0 mm × 1.0 mm Thin DFN (TDFN-4, MT suffix), ePAD exposed thermal pad (to be connected to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 4) | Supply Input | Accepts 2.5–5.5 V input; requires 1 μF ceramic decoupling to GND close to pin for stability. |
| EN (Pin 3) | Enable Input | Active-high logic control; must be driven to ≥1.2 V to enable; floating state is undefined-requires external pull-up or driver. |
| VOUT (Pin 1) | Regulated Output | Delivers regulated 3.0 V; connects to load and 1 μF ceramic output capacitor; no internal discharge circuit. |
| GND (Pin 2) | Ground Reference | Power and signal return path; ties to PCB ground plane and ePAD for optimal thermal performance. |
| ePAD | Exposed Heatsink Pad | Internally connected to GND; soldering to solid ground copper improves θJA by ~30% and sustains 300 mA at elevated ambient temperatures. |
Key Features
| Feature | Design Value |
|---|---|
| No-load stability | Maintains regulation with zero output current-enables use in memory backup and always-on monitoring circuits without minimum load resistors. |
| Low-noise operation | 175 μVRMS output noise (10 Hz–100 kHz); suitable for powering ADC references, precision op-amps, and RF receivers. |
| High PSRR | 60 dB ripple rejection at 1 kHz; suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Zero-off-mode | Draws ≤1 μA when EN = 0 V; reduces system standby power to nanoampere levels in sleep states. |
| Robust ESD rating | 3 kV HBM ESD tolerance; enhances reliability during handling and assembly in high-volume manufacturing. |
Applications
| Medical Wearables | Portable GPS Modules |
|---|---|
Use Scenario: Powering ultra-low-power MCU, BLE radio, and optical heart-rate sensor in a wrist-worn health monitor. IC Role / Device Role / Timing Role: Primary 3.0 V supply rail regulator delivering clean, stable voltage to mixed-signal SoC and analog front-end. Use Value: 38 μA quiescent current extends battery life beyond 7 days on a 120 mAh coin cell; ±2% accuracy ensures consistent sensor calibration across temperature. | Use Scenario: Supplying GNSS receiver IC and flash memory in handheld navigation devices operating from single-cell Li-ion. IC Role / Device Role / Timing Role: Post-regulator converting noisy 3.6–4.2 V battery voltage to tightly regulated 3.0 V for RF and digital core domains. Use Value: 160 mV dropout preserves headroom down to 3.16 V battery voltage, enabling full functionality until end-of-charge; 1 μF stability simplifies layout in space-constrained modules. |
| Smartphone Subsystems | Industrial Handheld Terminals |
Use Scenario: Powering camera ISP and image sensor interface in auxiliary camera modules. IC Role / Device Role / Timing Role: Dedicated low-noise 3.0 V LDO isolating sensitive imaging circuitry from noisy main PMIC rails. Use Value: 175 μVRMS noise and 60 dB PSRR prevent switching artifacts from degrading image SNR; 300 mA capacity handles burst-mode sensor readout currents. | Use Scenario: Providing reliable 3.0 V supply to barcode scanner engine and secure element in ruggedized field terminals. IC Role / Device Role / Timing Role: Main system LDO supporting wide-input industrial battery packs (2.5–5.5 V) and surviving –40°C cold storage and +70°C operational extremes. Use Value: Guaranteed operation from –40°C to +125°C junction temperature ensures functional integrity in sealed enclosures; thermal shutdown prevents latch-up during accidental short-circuit events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC5504-3.0YMT-TR | Includes auto-discharge circuit and internal EN pull-down resistor; otherwise identical electrical specs. | Suitable where automatic output capacitor discharge is required after shutdown (e.g., to meet safety discharge standards) or where EN signal may float during processor boot. | Select MIC5504-3.0YMT-TR only if auto-discharge or EN pull-down functionality is explicitly needed; MIC5501-3.0YMT-TR avoids unnecessary complexity in deterministic control environments. |
| Torex XC6210B302MR-G | 300 mA, 3.0 V, ±2% accuracy, 250 mV dropout @ 300 mA, 25 μA IQ, SOT-25 package (2.9 × 2.8 mm). | Larger footprint and higher dropout reduce efficiency in space- and battery-limited designs; lacks thermal shutdown flag or current limit spec. | Choose only if DFN-4 package is unavailable or if Torex's long-term supply commitment outweighs size and efficiency trade-offs. |
Compared with MIC5504-3.0YMT-TR, the MIC5501-3.0YMT-TR offers simpler enable control and avoids parasitic discharge paths; versus XC6210B302MR-G, it delivers superior thermal performance in half the footprint and guarantees robust fault protection-critical for mission-critical portable systems.
Availability
MIC5501-3.0YMT-TR is available at Aetrix Electronics and suitable for medical wearables, portable GPS modules, and industrial handheld terminals requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MIC5501-3.0YMT-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
Microchip Technology is a global semiconductor company specializing in microcontrollers, analog devices, and timing solutions, with a focus on embedded control and power management.
The MIC5501 family is designed as a high-performance, ultra-small-footprint LDO series targeting battery-powered portable electronics where size, efficiency, and reliability are paramount.
FAQ
What is the maximum input voltage rating for the MIC5501-3.0YMT-TR?
The MIC5501-3.0YMT-TR has an absolute maximum input voltage rating of +6 V. However, its specified operating input range is +2.5 V to +5.5 V. Exceeding 5.5 V may cause permanent damage or unpredictable behavior, even if within the absolute maximum stress rating. Always operate within the 2.5–5.5 V range for guaranteed performance and reliability of the MIC5501-3.0YMT-TR.
Does the MIC5501-3.0YMT-TR include an auto-discharge function on the output pin?
No, the MIC5501-3.0YMT-TR does not include an auto-discharge function. That feature is exclusive to MIC5502 and MIC5504 variants. When disabled, the MIC5501-3.0YMT-TR leaves VOUT floating-no internal discharge path is activated. If rapid output discharge is required, external circuitry or a different variant (e.g., MIC5504-3.0YMT-TR) must be used. This behavior is inherent to the MIC5501-3.0YMT-TR design.
What is the recommended output capacitor value and type for stable operation of the MIC5501-3.0YMT-TR?
The MIC5501-3.0YMT-TR requires a minimum 1 μF ceramic output capacitor, with X5R or X7R dielectric strongly recommended. These dielectrics maintain capacitance across temperature and bias, ensuring stability. Y5V or Z5U types are not recommended due to severe capacitance loss over temperature. The MIC5501-3.0YMT-TR is optimized for 1 μF and shows no significant performance gain with larger values.
Can the enable pin (EN) of the MIC5501-3.0YMT-TR be left unconnected?
No, the EN pin of the MIC5501-3.0YMT-TR must not be left floating. It uses CMOS input technology with no internal pull-up or pull-down. A floating EN pin may result in indeterminate output state or unintended toggling. External pull-up to VIN or active driving above 1.2 V is required to ensure reliable enablement of the MIC5501-3.0YMT-TR.
What is the thermal resistance (θJA) of the MIC5501-3.0YMT-TR in its standard DFN package?
The MIC5501-3.0YMT-TR in the 4-lead 1.0 mm × 1.0 mm Thin DFN package has a junction-to-ambient thermal resistance (θJA) of 250°C/W under standard JEDEC test conditions. Actual θJA improves significantly with proper PCB layout-especially when the ePAD is soldered to a large GND copper area. This thermal performance enables continuous 300 mA operation up to 65°C ambient when VIN = 3.6 V and VOUT = 2.8 V, as verified in the MIC5501-3.0YMT-TR datasheet.
MIC5501-3.0YMT-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 4-UDFN Exposed Pad
- 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):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.38V @ 300mA
- Current - Output:
- 300mA
- Current - Quiescent (Iq):
- 55 µA
- Current - Supply (Max):
- 65 µA
- PSRR:
- 60dB (1kHz)
- 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-TDFN (1x1)
MIC5501-3.0YMT-TR FAQ
1.How can I place an order for MIC5501-3.0YMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5501-3.0YMT-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 MIC5501-3.0YMT-TR reliable?
The price and inventory of MIC5501-3.0YMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5501-3.0YMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5501-3.0YMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5501-3.0YMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5501-3.0YMT-TR?
MIC5501-3.0YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5501-3.0YMT-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 MIC5501-3.0YMT-TR?
For technical support, including MIC5501-3.0YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5501-3.0YMT-TR requirements.
6.How does Aetrix verify that MIC5501-3.0YMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5501-3.0YMT-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 MIC5501-3.0YMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5501-3.0YMT-TR?
All MIC5501-3.0YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5501-3.0YMT-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 MIC5501-3.0YMT-TR part is unused and in its original packaging.
Return procedure for MIC5501-3.0YMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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