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Microchip Technology MIC5317-1.5YM5-T5
- Part No.:
- MIC5317-1.5YM5-T5
- Manufacturer:
- Microchip Technology
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MIC5317-1.5YM5-T5.pdf
- Description:
- IC REG LINEAR 1.5V 150MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,199
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Product details
Overview
MIC5317-1.5YM5-T5 from Microchip Technology is a high-performance 150 mA low-dropout (LDO) regulator in a 5-lead SOT23 package, delivering a fixed 1.5 V output with ±2% initial accuracy across –40°C to +125°C. It operates from 2.5 V to 6 V input, achieves 155 mV dropout at full load, and maintains stability with only 1 μF ceramic output capacitance-ideal for space-constrained USB dongles and battery-powered digital cameras.
For engineers reviewing the MIC5317-1.5YM5-T5 datasheet, MIC5317-1.5YM5-T5 pinout, MIC5317-1.5YM5-T5 application, or MIC5317-1.5YM5-T5 equivalent, key selection criteria include its ultra-low 29 μA quiescent current, 70 dB PSRR at 1 kHz, thermal shutdown protection, and active-high enable functionality enabling zero-off-mode current draw.
Technical Context
The MIC5317-1.5YM5-T5 integrates a CMOS-based LDO core with precision bandgap reference and internal current limiting. Its architecture supports fast load transient response and stable regulation down to no-load conditions-critical for CMOS RAM keep-alive circuits.
It features an active-high enable input (VEN ≥ 1.2 V for ON), ground pin current of 29 μA typical at zero load, and thermal shutdown triggered above +125°C junction temperature. The device is not suitable for RF transmitter systems per official specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±2% (25°C), ±3% over –40°C to +125°C - ensures reliable biasing of 1.5 V logic and analog subsystems. |
| Max Output Current | 150 mA continuous - sufficient for powering microcontrollers, sensors, or interface ICs in portable equipment. |
| Dropout Voltage | 155 mV @ 150 mA - enables operation from 2.5 V input while maintaining 1.5 V output, supporting single-cell Li-ion or 3.3 V rail derivation. |
| Quiescent Current | 29 μA typical - minimizes standby power loss in always-on applications like real-time clocks or sensor wake-up circuits. |
| PSRR | 70 dB @ 1 kHz - suppresses ripple from noisy DC/DC converters or shared power rails, preserving signal integrity in mixed-signal designs. |
| Operating Input Range | 2.5 V to 6.0 V - compatible with USB 5 V, 3.3 V LDO inputs, and 6 V AC adapters without external pre-regulation. |
| Enable Threshold | VIL ≤ 0.2 V / VIH ≥ 1.2 V - compatible with standard CMOS logic levels and allows direct interfacing with MCU GPIOs. |
Pinout & Package
Package: 5-Lead SOT-23 (M5), RoHS-compliant, 2.9 mm × 1.6 mm footprint, exposed pad (EP) connected to GND for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Input supply connection | Accepts 2.5–6 V; requires 1 μF ceramic input capacitor to ground for stability and high-frequency noise filtering. |
| 2 (GND) | Ground reference | Common return path for input/output currents and enable logic; must be low-impedance for PSRR and thermal performance. |
| 3 (EN) | Active-high enable control | Pull ≥1.2 V to enable output; pull ≤0.2 V to enter zero-off-mode (<1 μA shutdown current); must never float. |
| 4 (VOUT) | Regulated output | Delivers stable 1.5 V ±2%; requires 1 μF ceramic output capacitor (X5R/X7R) for guaranteed stability. |
| 5 (NC) | No-connect terminal | Not internally bonded; electrically isolated-must remain unconnected on PCB to avoid parasitic coupling or reliability risk. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SOT23-5 package | 2.9 mm × 1.6 mm footprint with exposed thermal pad - reduces PCB area by >75% vs. SC-70, enabling dense portable layouts. |
| Low-noise regulation | 200 μVRMS output noise (10 Hz–100 kHz) - preserves SNR in ADC references, audio codecs, and RF receiver bias rails. |
| Zero-off-mode shutdown | <1 μA shutdown current - eliminates battery drain in sleep states of IoT edge nodes and wearable devices. |
| Robust fault protection | Thermal shutdown + foldback current limit (200–550 mA) - prevents damage during short-circuit or overload events without external components. |
| Wide temperature operation | –40°C to +125°C junction range - qualified for industrial, automotive under-hood, and outdoor embedded applications. |
Applications
| USB Dongles | Wireless LAN Modules |
|---|---|
|
Use Scenario: Powering USB Bluetooth/Wi-Fi adapter ICs and flash memory in compact plug-in dongles. IC Role / Device Role / Timing Role: Primary 1.5 V supply for baseband processors and RF front-end biasing. Use Value: 155 mV dropout enables direct 2.5 V input use; 29 μA quiescent current extends host-bus-powered standby time. |
Use Scenario: Regulating 1.5 V for WLAN SoC I/O banks and PHY analog sections in mini-PCIe or M.2 modules. IC Role / Device Role / Timing Role: Low-noise local LDO replacing switching converter post-regulation to reduce EMI. Use Value: 70 dB PSRR suppresses switcher ripple; 1 μF capacitor compatibility simplifies layout in tight RF zones. |
| Digital Still Cameras | Battery-Powered Test Equipment |
|
Use Scenario: Supplying image sensor interface logic and autofocus motor drivers in compact point-and-shoot cameras. IC Role / Device Role / Timing Role: Stable 1.5 V rail for LVDS transceivers and timing-critical sensor clock buffers. Use Value: Excellent load transient response prevents voltage sag during burst capture; no-load stability avoids brownout on idle. |
Use Scenario: Powering handheld multimeters, oscilloscope front-ends, and portable spectrum analyzers with alkaline/Li-ion batteries. IC Role / Device Role / Timing Role: Precision 1.5 V reference source for ADC voltage references and DAC bias networks. Use Value: ±2% output accuracy ensures measurement repeatability; thermal shutdown protects against overheating in sealed enclosures. |
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, 1.5 V, SOT23-3, 120 mV dropout @ 150 mA, 1.8 μA IQ | No enable pin; fixed 3-pin configuration limits control flexibility | Choose when board space is critical and enable control is unnecessary. |
| Torex XC6206P152MR-G | 150 mA, 1.5 V, SOT23-5, 250 mV dropout @ 150 mA, 1.0 μA IQ, no thermal shutdown | Lacks thermal protection and has higher dropout; lower IQ benefits ultra-low-power sleep modes | Prefer for energy-harvesting or coin-cell applications where thermal risk is minimal and IQ dominates lifetime. |
Compared with MCP1700T-1.502E/TT and XC6206P152MR-G, the MIC5317-1.5YM5-T5 uniquely combines enable control, thermal shutdown, and 155 mV dropout in a 5-pin SOT23-making it optimal for thermally constrained, controllable power domains in portable electronics.
Availability
MIC5317-1.5YM5-T5 is available at Aetrix Electronics and suitable for USB dongles, wireless LAN modules, and battery-powered test equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC5317-1.5YM5-T5 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 provider of microcontrollers, analog, FPGA, and power management semiconductors, with emphasis on embedded control and reliability.
The MIC5317 family delivers high-PSRR, low-IQ LDOs in ultra-compact packages for space- and power-sensitive portable and industrial applications-designed specifically for USB, camera, and wireless infrastructure markets.
FAQ
What is the maximum input voltage rating for the MIC5317-1.5YM5-T5?
The MIC5317-1.5YM5-T5 has an absolute maximum input voltage of +7 V, but its specified operating range is +2.5 V to +6.0 V. Exceeding 6 V may cause permanent damage or unpredictable behavior. For reliable operation in MIC5317-1.5YM5-T5 designs, maintain VIN within 2.5–6.0 V and ensure adequate derating for thermal margin at high ambient temperatures.
Does the MIC5317-1.5YM5-T5 require an external capacitor on the EN pin?
No, the MIC5317-1.5YM5-T5 does not require an external capacitor on the EN pin. Its enable input uses CMOS-level logic with low leakage (≤1 μA), and the datasheet explicitly warns against leaving EN floating. A pull-down resistor to GND (e.g., 100 kΩ) is recommended for default-off behavior, but no bypass or filtering capacitor is needed or specified for MIC5317-1.5YM5-T5.
Can the MIC5317-1.5YM5-T5 be used with Y5V ceramic capacitors?
No-the MIC5317-1.5YM5-T5 is not recommended for use with Y5V dielectric capacitors. Per Microchip's application note, Y5V types lose up to 60% capacitance over temperature, risking instability. X5R or X7R ceramics (e.g., 1 μF, 10 V, 0402) are required for both input and output to guarantee stability across –40°C to +125°C in MIC5317-1.5YM5-T5 applications.
What is the thermal resistance (θJA) of the MIC5317-1.5YM5-T5 package?
The MIC5317-1.5YM5-T5 uses the 5-lead SOT23 (M5) package, which has a junction-to-ambient thermal resistance (θJA) of 253°C/W under standard JEDEC test conditions. This value assumes a 2-layer PCB with 1 in² copper pour connected to the EP. Actual θJA improves with enhanced heatsinking-critical for sustaining 150 mA at high ambient temperatures in MIC5317-1.5YM5-T5 deployments.
Is the MIC5317-1.5YM5-T5 suitable for RF transmitter power rails?
No-the MIC5317-1.5YM5-T5 is explicitly stated as "not suitable for RF transmitter systems" in the official datasheet (Section 4.0). While it offers high PSRR and low noise, its internal architecture and lack of RF-specific qualification make it inappropriate for powering PA stages or synthesizer VCOs. Use dedicated RF LDOs or DC/DC converters for MIC5317-1.5YM5-T5-replaced RF transmitter rails.
MIC5317-1.5YM5-T5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Cut Tape (CT)
- 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-T5 FAQ
1.How can I place an order for MIC5317-1.5YM5-T5 through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5317-1.5YM5-T5 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-T5 reliable?
The price and inventory of MIC5317-1.5YM5-T5 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-T5 is usually 5 days.
3.What payment methods are accepted for MIC5317-1.5YM5-T5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5317-1.5YM5-T5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5317-1.5YM5-T5?
MIC5317-1.5YM5-T5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5317-1.5YM5-T5 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-T5?
For technical support, including MIC5317-1.5YM5-T5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5317-1.5YM5-T5 requirements.
6.How does Aetrix verify that MIC5317-1.5YM5-T5 is sourced from the original manufacturer or authorized distributors?
All MIC5317-1.5YM5-T5 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-T5 meets industry standards.
7.What is the process for return or replacement of MIC5317-1.5YM5-T5?
All MIC5317-1.5YM5-T5 units undergo pre-shipment inspection (PSI). If there is an issue with MIC5317-1.5YM5-T5, 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-T5 part is unused and in its original packaging.
Return procedure for MIC5317-1.5YM5-T5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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