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Microchip Technology MIC5317-1.5YM5-TR
- Part No.:
- MIC5317-1.5YM5-TR
- Manufacturer:
- Microchip Technology
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MIC5317-1.5YM5-TR.pdf
- Description:
- IC REG LINEAR 1.5V 150MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,928
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Product details
Overview
MIC5317-1.5YM5-TR from Microchip Technology is a high-performance 150 mA low-dropout linear regulator delivering a fixed 1.5 V output, operating from 2.5 V to 6.0 V input, with 2% initial output voltage accuracy, 155 mV dropout at full load, and stable operation using only 1 μF ceramic output capacitance. It serves as a compact, low-noise power supply for space-constrained portable electronics requiring precise, efficient voltage regulation.
For engineers reviewing the MIC5317-1.5YM5-TR datasheet, MIC5317-1.5YM5-TR pinout, MIC5317-1.5YM5-TR application, or MIC5317-1.5YM5-TR equivalent, this page provides verified technical context, package-specific pin mapping, real-world application scenarios, and validated alternative parts for design-in decisions in battery-powered and USB-powered systems.
Technical Context
The MIC5317-1.5YM5-TR implements a CMOS-based LDO architecture with active-high enable control, thermal shutdown, and foldback current limiting. Its internal reference and error amplifier deliver tight line/load regulation (0.3% line, 25 mV load) across –40°C to +125°C junction temperature.
It achieves high PSRR (70 dB typical at DC–1 kHz, 65 dB up to 10 kHz) and ultra-low quiescent current (29 μA typical), enabling stable operation under dynamic load transients while maintaining efficiency in always-on subsystems such as memory keep-alive circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±2% - ensures compatibility with 1.5 V logic rails and low-voltage sensors without external feedback. |
| Max Output Current | 150 mA - supports moderate-power peripherals like USB PHYs, Wi-Fi modules, and camera ISPs. |
| Dropout Voltage | 155 mV @ 150 mA - enables regulation from 1.65 V input, critical for single-cell Li-ion or 2xAA battery operation. |
| Quiescent Current | 29 μA - minimizes standby power loss in battery-backed applications such as RTC or SRAM retention. |
| PSRR | 70 dB @ DC–1 kHz - suppresses ripple from noisy switching supplies feeding downstream analog or RF circuitry. |
| Stability | Stable with ≥1 μF ceramic output capacitor - eliminates need for large tantalum or electrolytic capacitors, reducing board area and cost. |
| Enable Threshold | Logic-high >1.2 V, logic-low <0.2 V - compatible with standard 1.8 V/3.3 V GPIOs without level-shifting. |
Pinout & Package
Package: 5-Lead SOT-23 (M5), RoHS-compliant, 2.9 mm × 1.6 mm × 1.1 mm body, exposed pad not present (unlike UDFN variant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input Supply | Accepts 2.5 V–6.0 V unregulated input; requires 1 μF ceramic bypass capacitor to ground. |
| 2 (GND) | Ground Reference | Primary return path for load and quiescent current; must be low-impedance connection to system ground plane. |
| 3 (EN) | Enable Input | Active-high digital control: drives output ON when >1.2 V, OFF when <0.2 V; must not float. |
| 4 (NC) | No Connect | Internally unconnected; no electrical function; may be left unconnected or tied to GND for mechanical stability. |
| 5 (VOUT) | Regulated Output | Delivers stable 1.5 V ±2%; requires ≥1 μF ceramic output capacitor directly at pin for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | SOT-23-5 package occupies only 4.64 mm² PCB area - ideal for USB dongles and compact IoT nodes. |
| Zero-off mode | Shutdown current ≤1 μA - enables true power gating for energy harvesting or long-life battery systems. |
| High transient response | Minimal output voltage deviation during 100 mA load steps - maintains clean supply for noise-sensitive analog blocks. |
| Thermal & current protection | Integrated thermal shutdown and 200–550 mA current limit - prevents damage during overload or ambient overheating. |
| Low-noise operation | 200 μVRMS output noise (10 Hz–100 kHz) - suitable for powering ADC references and RF front-end bias rails. |
Applications
| USB Dongles | Wireless LAN Modules |
|---|---|
Use Scenario: Compact USB 2.0 adapter housing a Wi-Fi or Bluetooth radio IC powered from host 5 V bus. IC Role / Device Role / Timing Role: Primary 1.5 V LDO supplying core logic and RF synthesizer bias of the wireless IC. Use Value: Enables direct 5 V-to-1.5 V conversion with minimal board area and no external compensation components. | Use Scenario: Mini-PCIe or M.2 WLAN card requiring regulated 1.5 V for MAC controller and PHY interface. IC Role / Device Role / Timing Role: Point-of-load regulator for 1.5 V I/O domain, decoupling noise from shared 3.3 V rail. Use Value: Delivers 70 dB PSRR to reject switching noise from nearby DC/DC converters, improving RF sensitivity. |
| Battery-Powered Cameras | Digital Audio Processors |
Use Scenario: Portable action camera using dual AA/AAA alkaline cells (1.8–3.0 V) to power image sensor and ISP. IC Role / Device Role / Timing Role: Main 1.5 V supply for sensor analog front-end and pixel processing logic. Use Value: 155 mV dropout allows regulation down to 1.65 V input, extending usable battery life by ~18% vs. higher-dropout alternatives. | Use Scenario: Portable voice recorder with low-power DSP and MEMS microphone preamp requiring clean 1.5 V bias. IC Role / Device Role / Timing Role: Low-noise analog supply rail for microphone bias and ADC reference. Use Value: 200 μVRMS noise floor preserves SNR in audio signal chain without additional filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1502E/TT | 150 mA max, 1.5 V fixed, 6 μA IQ, but only 100 mV dropout @ 250 mA - lower IQ but higher dropout at full load. | Limited to lower-temperature industrial use (–40°C to +125°C same); lacks thermal shutdown flag output. | Prefer when ultra-low quiescent current dominates over transient performance and fault reporting. |
| Torex XC6206P152MR-G | 150 mA max, 1.5 V fixed, 1.0 μF min COUT, but 250 mV dropout @ 150 mA and 120 μA IQ - higher dropout and quiescent current. | Rated only to +85°C ambient; no enable pin - unsuitable for power-gated subsystems. | Consider only for cost-sensitive, non-temperature-extreme consumer applications where enable control is unnecessary. |
Compared with MCP1700T-1502E/TT and XC6206P152MR-G, the MIC5317-1.5YM5-TR delivers superior transient response, integrated thermal shutdown, and tighter output accuracy (±2% vs. ±3%), making it preferred for mission-critical portable electronics requiring robustness and precision.
Availability
MIC5317-1.5YM5-TR is available at Aetrix Electronics and suitable for USB dongles, wireless LAN modules, and battery-powered cameras requiring stable component supply with guaranteed long-term manufacturability.
Supply support for MIC5317-1.5YM5-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 power management ICs, with a focus on reliability and long-term product support.
The MIC5317 family is designed for space-constrained, battery-sensitive applications demanding high PSRR, low dropout, and zero-off mode operation - targeting portable computing, imaging, and connectivity subsystems.
FAQ
What is the maximum input voltage rating for the MIC5317-1.5YM5-TR?
The MIC5317-1.5YM5-TR has an absolute maximum input voltage rating of +7 V. However, its specified operating range is +2.5 V to +6.0 V. Exceeding 6.0 V during normal operation risks violating functional specifications and may accelerate parametric drift or reduce long-term reliability, even if within absolute maximum limits.
Does the MIC5317-1.5YM5-TR require an external pull-up resistor on the EN pin?
No, the MIC5317-1.5YM5-TR does not require an external pull-up resistor on the EN pin. Its enable input uses CMOS-compatible thresholds (logic high >1.2 V, logic low <0.2 V) and draws only 0.01–1 μA. The EN pin must be actively driven - floating is prohibited - but a dedicated pull-up is unnecessary if controlled by a GPIO or open-drain driver with defined states.
Can the MIC5317-1.5YM5-TR operate stably with no load?
Yes, the MIC5317-1.5YM5-TR remains stable and in regulation with zero load current. This no-load stability is explicitly confirmed in the datasheet and is essential for applications like CMOS RAM keep-alive circuits, where the regulator must maintain 1.5 V output even when downstream circuitry is fully powered down.
What is the thermal resistance (θJA) of the MIC5317-1.5YM5-TR in its SOT-23-5 package?
The MIC5317-1.5YM5-TR in the SOT-23-5 (M5) package has a junction-to-ambient thermal resistance (θJA) of 253°C/W, as specified in the datasheet. This value assumes standard JEDEC 2-layer board conditions; actual θJA improves with PCB copper area, thermal vias, and airflow.
Is the MIC5317-1.5YM5-TR suitable for RF transmitter power supply applications?
No, the MIC5317-1.5YM5-TR is explicitly stated in the datasheet as "not suitable for RF transmitter systems." While it offers high PSRR and low noise, its internal architecture and lack of RF-specific shielding or isolation make it inappropriate for powering RF power amplifiers or high-power transmitters where stringent spectral purity and EMI immunity are required.
MIC5317-1.5YM5-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.5V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.38V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 39 µA
- Current - Supply (Max):
- -
- PSRR:
- 80dB ~ 65dB (1kHz ~ 10kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
MIC5317-1.5YM5-TR FAQ
1.How can I place an order for MIC5317-1.5YM5-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5317-1.5YM5-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 MIC5317-1.5YM5-TR reliable?
The price and inventory of MIC5317-1.5YM5-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5317-1.5YM5-TR is usually 5 days.
3.What payment methods are accepted for MIC5317-1.5YM5-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5317-1.5YM5-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5317-1.5YM5-TR?
MIC5317-1.5YM5-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5317-1.5YM5-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 MIC5317-1.5YM5-TR?
For technical support, including MIC5317-1.5YM5-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5317-1.5YM5-TR requirements.
6.How does Aetrix verify that MIC5317-1.5YM5-TR is sourced from the original manufacturer or authorized distributors?
All MIC5317-1.5YM5-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 MIC5317-1.5YM5-TR meets industry standards.
7.What is the process for return or replacement of MIC5317-1.5YM5-TR?
All MIC5317-1.5YM5-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5317-1.5YM5-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 MIC5317-1.5YM5-TR part is unused and in its original packaging.
Return procedure for MIC5317-1.5YM5-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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