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Microchip Technology MIC5524-3.0YMT-TZ
- Part No.:
- MIC5524-3.0YMT-TZ
- Manufacturer:
- Microchip Technology
- Package:
- 4-UDFN Exposed Pad
- Datasheet:
-
MIC5524-3.0YMT-TZ.pdf
- Description:
- IC REG LINEAR 3V 500MA 4TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,092
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Product details
Overview
MIC5524-3.0YMT from Micrel is a fixed-output 3.0V, 500mA low-dropout linear regulator in a 1mm × 1mm Thin DFN package, featuring ±1% output accuracy, 260mV dropout at full load, and 38µA quiescent current. It delivers stable power to space-constrained portable electronics with auto-discharge, internal enable pulldown, and thermal/current protection.
For engineers reviewing the MIC5524-3.0YMT datasheet, MIC5524-3.0YMT pinout, MIC5524-3.0YMT application, or MIC5524-3.0YMT equivalent, key selection criteria include ultra-low quiescent current, µCap compatibility with 2.2µF ceramic output capacitors, TTL-compatible enable logic, and operation across –40°C to +125°C junction temperature.
Technical Context
The MIC5524-3.0YMT employs a CMOS-based LDO architecture with integrated error amplifier, pass transistor, and bandgap reference. Its fast transient response and 80dB PSRR at 100Hz stem from high-bandwidth control loop design optimized for low-ESR ceramic capacitors.
It integrates dual protection mechanisms: foldback current limiting (525–800mA trip) and thermal shutdown (TJ > 150°C), plus an active auto-discharge NFET (25Ω) activated when EN = 0V. The internal 4MΩ enable pulldown ensures fail-safe disable during processor boot-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0V ±1% over –40°C to +125°C; enables precise biasing of 3.0V logic rails without external feedback. |
| Max Output Current | 500mA guaranteed; supports moderate-power subsystems like GPS receivers or sensor hubs without derating at 87.5°C ambient. |
| Dropout Voltage | 260mV @ 500mA; allows operation from 3.26V input, critical for single-cell Li-ion or 3.3V rail margining. |
| Quiescent Current | 38µA typical @ 100µA load; extends battery life in always-on keep-alive circuits such as RTC or SRAM backup. |
| PSRR | 80dB @ 100Hz; suppresses switching noise from adjacent DC/DC converters feeding shared input rails. |
| Stability | Guaranteed with 2.2µF X5R/X7R ceramic output capacitor; eliminates need for tantalum or electrolytic bulk caps. |
| Enable Logic | TTL-compatible active-high EN (1.2V logic high); internal 4MΩ pulldown prevents floating-state misoperation. |
Pinout & Package
4-pin 1mm × 1mm Thin DFN (MT) package with exposed ePad (connected to GND for thermal and electrical performance). RoHS-compliant, halogen-free mold compound, NiPdAu lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT | Regulated output terminal | Delivers 3.0V to load; internally connects to 25Ω discharge FET when EN = 0V to rapidly deplete output capacitance. |
| 2 - GND | Power ground reference | Common return path for load, input capacitor, and ePad; must be low-impedance connection to PCB ground plane. |
| 3 - EN | Active-high enable control | Logic input: ≥1.2V enables regulation; ≤0.2V disables output; internal 4MΩ pulldown ensures default OFF state. |
| 4 - VIN | Input supply terminal | Accepts 2.5V–5.5V input; requires 2.2µF ceramic capacitor to GND for stability and high-frequency noise filtering. |
| ePad | Exposed thermal pad | Electrically and thermally connected to GND; mandatory for achieving θJA = 250°C/W and sustaining 500mA continuous output. |
Key Features
| Feature | Design Value |
|---|---|
| µCap Operation | Stable with only 2.2µF ceramic output capacitor-reduces board area by >50% vs. traditional LDOs requiring ≥10µF. |
| Auto-Discharge | 25Ω internal NFET on VOUT discharges external caps within microseconds upon disable-prevents residual voltage hold-up in power sequencing. |
| Zero-Off-Mode Current | ≤1µA shutdown current (typ. 0.05µA) eliminates standby leakage-critical for multi-year battery-powered IoT endpoints. |
| Wide Input Range | 2.5V–5.5V operation supports direct connection to Li-ion (3.0–4.2V), USB (4.75–5.25V), or regulated 3.3V/5V rails without pre-regulation. |
| Robust Protection | Integrated thermal shutdown and foldback current limit prevent damage during short-circuit or overload-no external components needed. |
Applications
| Portable Medical Sensors | DSC & GPS Modules |
|---|---|
|
Use Scenario: Powering low-noise analog front-ends in wearable ECG or pulse oximetry sensors. IC Role / Device Role / Timing Role: Provides ultra-stable 3.0V supply with <80µV RMS noise and minimal load-dependent drift. Use Value: Enables sub-µV-level signal integrity by suppressing supply-induced offset and maintaining ±1% regulation across temperature. |
Use Scenario: Supplying 3.0V core voltage to GPS baseband processors and image sensors in digital still cameras. IC Role / Device Role / Timing Role: Delivers clean, fast-response power during burst-mode RF acquisition and image capture cycles. Use Value: 80dB PSRR at 100Hz rejects switching noise from PMIC DC/DC stages, preventing GPS position jitter and image artifacts. |
| 5V Point-of-Load Conversion | CMOS RAM Keep-Alive Circuits |
|
Use Scenario: Generating 3.0V from 5V system rail for FPGA I/O banks or microcontroller peripherals. IC Role / Device Role / Timing Role: Acts as compact, high-efficiency post-regulator replacing discrete solutions or larger LDOs. Use Value: 260mV dropout allows >94% efficiency at 500mA, while 1mm² footprint saves >70% PCB area versus SOT-23 alternatives. |
Use Scenario: Maintaining 3.0V supply to SRAM during main system power-down in industrial controllers. IC Role / Device Role / Timing Role: Regulates continuously at microamp loads with no minimum load requirement. Use Value: Stable no-load operation prevents brownout resets; 38µA IQ extends coin-cell lifetime beyond 10 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3002E/TO | 300mA max output, 6µA IQ, SOT-23-5 package (2.9mm × 1.6mm) | Limited to lower-current peripherals; smaller IQ benefits ultra-low-power sleep modes. | Choose when load ≤300mA and quiescent current is priority over size. |
| Torex XC6206P302MR-G | 300mA max output, 1µA IQ, SOT-25 package; no enable or auto-discharge. | Suitable for always-on, non-sequenced rails; lacks active control for power management. | Choose for cost-sensitive, static 3.0V supplies where enable sequencing is unnecessary. |
Compared with MCP1700-3002E/TO and XC6206P302MR-G, the MIC5524-3.0YMT uniquely combines 500mA drive, 1mm² footprint, auto-discharge, and TTL-enable in a single device-making it optimal for space-constrained, sequenced power systems requiring rapid turn-off and high load capability.
Availability
MIC5524-3.0YMT is available at Aetrix Electronics and suitable for portable medical devices, GPS modules, and 5V point-of-load conversion requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MIC5524-3.0YMT 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 analog and mixed-signal semiconductor company specializing in power management, timing, and interface ICs before its acquisition by Microchip Technology in 2015.
The MIC5524 family was designed for ultra-compact, high-performance power delivery in battery-powered portable electronics-emphasizing low IQ, µCap stability, and robust sequencing features.
FAQ
What is the maximum input voltage rating for the MIC5524-3.0YMT?
The MIC5524-3.0YMT has an absolute maximum input voltage of 6V, but its specified operating range is 2.5V to 5.5V. Exceeding 5.5V may cause permanent damage even if within the 6V absolute limit. For reliable operation with a 5V system rail, the MIC5524-3.0YMT supports up to 5.5V input with sufficient margin against transients.
Does the MIC5524-3.0YMT require an external pull-down resistor on the EN pin?
No-the MIC5524-3.0YMT includes an internal 4MΩ pull-down resistor on the EN pin, ensuring the device remains disabled when the control signal is left floating. This eliminates the need for external components and prevents unintended startup during processor boot-up sequences.
Can the MIC5524-3.0YMT operate stably with no load connected to VOUT?
Yes-the MIC5524-3.0YMT remains stable and in regulation with zero load current, a feature confirmed in the datasheet's "No-Load Stability" section. This makes the MIC5524-3.0YMT suitable for CMOS RAM keep-alive and other ultra-low-power standby applications.
What is the purpose of the exposed ePad on the MIC5524-3.0YMT package?
The exposed ePad on the MIC5524-3.0YMT serves dual functions: thermal dissipation (lowering θJA to 250°C/W) and electrical grounding. It must be soldered to a PCB ground plane; omitting this connection risks thermal shutdown under 500mA load and violates the validated thermal design.
Is the MIC5524-3.0YMT compatible with Y5V ceramic capacitors on the output?
No-Y5V dielectrics are explicitly discouraged in the MIC5524-3.0YMT datasheet due to >60% capacitance loss over temperature. X5R or X7R ceramics are required to maintain ≥2.2µF minimum effective capacitance across –40°C to +125°C, ensuring stability and transient response.
MIC5524-3.0YMT-TZ 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):
- 0.5V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 55 µA
- Current - Supply (Max):
- -
- PSRR:
- 80dB ~ 65dB (100Hz ~ 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)
MIC5524-3.0YMT-TZ FAQ
1.How can I place an order for MIC5524-3.0YMT-TZ through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5524-3.0YMT-TZ 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 MIC5524-3.0YMT-TZ reliable?
The price and inventory of MIC5524-3.0YMT-TZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5524-3.0YMT-TZ is usually 5 days.
3.What payment methods are accepted for MIC5524-3.0YMT-TZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5524-3.0YMT-TZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5524-3.0YMT-TZ?
MIC5524-3.0YMT-TZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5524-3.0YMT-TZ 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 MIC5524-3.0YMT-TZ?
For technical support, including MIC5524-3.0YMT-TZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5524-3.0YMT-TZ requirements.
6.How does Aetrix verify that MIC5524-3.0YMT-TZ is sourced from the original manufacturer or authorized distributors?
All MIC5524-3.0YMT-TZ 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 MIC5524-3.0YMT-TZ meets industry standards.
7.What is the process for return or replacement of MIC5524-3.0YMT-TZ?
All MIC5524-3.0YMT-TZ units undergo pre-shipment inspection (PSI). If there is an issue with MIC5524-3.0YMT-TZ, 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 MIC5524-3.0YMT-TZ part is unused and in its original packaging.
Return procedure for MIC5524-3.0YMT-TZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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