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Microchip Technology MIC5317-1.5YD5-TR
- Part No.:
- MIC5317-1.5YD5-TR
- Manufacturer:
- Microchip Technology
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MIC5317-1.5YD5-TR.pdf
- Description:
- IC REG LIN 1.5V 150MA TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,395
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Product details
Overview
MIC5317-1.5YD5-TR from Microchip Technology is a high-performance 150 mA low-dropout linear regulator (LDO) with 1.5 V fixed output, 2.5–6 V input range, 155 mV dropout at full load, ±2% output accuracy, and stable operation with 1 μF ceramic output capacitors. It delivers precision voltage regulation for space-constrained USB dongles, battery-powered sensors, and portable computing peripherals.
For engineers reviewing the MIC5317-1.5YD5-TR datasheet, MIC5317-1.5YD5-TR pinout, MIC5317-1.5YD5-TR application, or MIC5317-1.5YD5-TR equivalent, this device offers verified thermal shutdown, active-high enable control, 29 μA quiescent current, and 70 dB PSRR - critical for noise-sensitive analog and mixed-signal subsystems requiring stable 1.5 V bias rails.
Technical Context
The MIC5317-1.5YD5-TR implements a CMOS-based LDO architecture with internal reference, error amplifier, and pass transistor optimized for fast transient response and low ground current. Its enable logic is CMOS-compatible with 0.2 V logic-low and 1.2 V logic-high thresholds, and it enters near-zero-current shutdown (<1 μA) when disabled.
Designed for ultra-small footprints, it operates across –40°C to +125°C junction temperature and supports stable regulation with no-load conditions - essential for CMOS RAM keep-alive and always-on subsystems. It 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% over –40°C to +125°C - ensures consistent core/bias rail for low-voltage logic and analog ICs. |
| Input Voltage Range | 2.5 V to 6.0 V - compatible with single-cell Li-ion (3.0–4.2 V), USB 5 V, and 6 V AC adapters. |
| Max Output Current | 150 mA continuous - sufficient for microcontrollers, sensors, and interface ICs in compact portable designs. |
| Dropout Voltage | 155 mV @ 150 mA - enables >1.65 V input to sustain 1.5 V output, maximizing battery runtime in brownout conditions. |
| Quiescent Current | 29 μA typical - minimizes standby power loss in battery-backed applications such as real-time clocks or wake-on-event circuits. |
| PSRR | 70 dB (typ.) - suppresses ripple from noisy switchers or shared power rails, preserving signal integrity in ADCs and RF receivers. |
| Enable Threshold | Logic-high ≥1.2 V, logic-low ≤0.2 V - interoperable with 1.8 V and 3.3 V GPIO without level-shifting. |
Pinout & Package
Package: 5-Lead TSOT23-5 (YD5), 1.9 mm × 1.6 mm × 0.9 mm body, exposed thermal pad (EP) connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Supply Input | Primary DC input connection; must be decoupled with ≥1 μF ceramic capacitor to GND for stability. |
| 2 (EN) | Enable Input | Active-high digital control; drives output ON/OFF; requires pull-up or direct MCU GPIO; floating state prohibited. |
| 3 (VOUT) | Regulated Output | 1.5 V fixed output; supplies downstream loads; requires ≥1 μF ceramic capacitor to GND for loop stability. |
| 4 (GND) | Ground Reference | Analog/digital return path; must be low-impedance; connects to EP for thermal dissipation. |
| 5 (NC) | No Connect | Not internally bonded; electrically isolated; must remain unconnected on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small footprint | TSOT23-5 package occupies only 3.04 mm² PCB area - 75% smaller than SC-70, enabling dense portable layouts. |
| Low-noise regulation | 200 μVRMS output noise (10 Hz–100 kHz) - preserves SNR in audio codecs, precision ADCs, and RF front-end biasing. |
| Zero-off-mode current | <1 μA shutdown current - eliminates battery drain in powered-down states for multi-year coin-cell operation. |
| Robust protection | Integrated thermal shutdown and current limiting (200–550 mA) - prevents damage during short-circuit or overload events. |
| No-load stability | Maintains regulation with 0 mA load - supports always-on memory retention and wake-up circuitry without external dummy loads. |
Applications
| USB Dongles | Wireless LAN Modules |
|---|---|
|
Use Scenario: Compact Wi-Fi/Bluetooth USB adapter with integrated radio IC and MCU. IC Role / Device Role / Timing Role: Provides clean 1.5 V supply to RF transceiver's analog front-end and crystal oscillator buffer. Use Value: 70 dB PSRR rejects switching noise from USB bus-powered DC-DC converters, preventing RX sensitivity degradation. |
Use Scenario: M.2 or mini-PCIe WLAN card operating from 3.3 V or 5 V host rail. IC Role / Device Role / Timing Role: Generates stable 1.5 V for PHY-level I/O buffers and low-power sleep-state retention. Use Value: 29 μA quiescent current extends battery life in mobile hotspot mode; 150 mA headroom supports burst TX peaks. |
| Digital Still Cameras | Industrial Sensor Nodes |
|
Use Scenario: Compact camera module with image sensor, ISP, and flash controller. IC Role / Device Role / Timing Role: Supplies 1.5 V to sensor analog core and timing generator PLL circuits. Use Value: 155 mV dropout enables operation down to 1.65 V input - critical for single-cell Li-ion battery discharge curve. |
Use Scenario: Battery-powered wireless temperature/humidity node with LoRaWAN or BLE radio. IC Role / Device Role / Timing Role: Powers ultra-low-power MCU and sensor ASIC during deep-sleep and measurement cycles. Use Value: No-load stability eliminates need for bleed resistors; zero-off-mode current enables >10-year shelf life on CR2032. |
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 fixed, SOT23-3 package, 170 mV dropout @ 250 mA, 1.8–6.0 V input | No enable pin; 3-pin design simplifies layout but lacks controlled sequencing | Select when enable functionality is unnecessary and board space permits slightly higher dropout margin. |
| TPS7A0515PDBVR | 200 mA, 1.5 V fixed, SOT23-5, 130 mV dropout @ 200 mA, 1.4–5.5 V input, 25 μA IQ | Lower dropout and IQ, but rated only to +125°C (not extended temp); different pinout (EN on Pin 3) | Prefer for higher current or lower IQ needs in commercial-temp industrial designs where extended temp is not required. |
Compared with MCP1700T-1502E/TT and TPS7A0515PDBVR, the MIC5317-1.5YD5-TR uniquely combines extended temperature support (–40°C to +125°C), active-high enable in TSOT23-5, and proven stability with 1 μF ceramics - making it optimal for ruggedized portable electronics requiring guaranteed performance across full automotive-grade thermal ranges.
Availability
MIC5317-1.5YD5-TR is available at Aetrix Electronics and suitable for USB dongles, wireless LAN modules, and battery-powered imaging equipment requiring stable component supply, long-lifecycle assurance, and RoHS-compliant packaging.
Supply support for MIC5317-1.5YD5-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 U.S.-based semiconductor company specializing in microcontrollers, analog devices, and power management ICs, with emphasis on reliability, longevity, and embedded system integration.
The MIC5317 product line delivers high-PSRR, low-IQ LDOs in ultra-miniature packages for space- and power-constrained portable and industrial applications - designed specifically for USB, battery, and adapter-powered subsystems demanding precision 1.0–3.6 V rails.
FAQ
What is the maximum input voltage rating for the MIC5317-1.5YD5-TR?
The MIC5317-1.5YD5-TR has an absolute maximum input voltage of +7 V, but its specified operating range is +2.5 V to +6.0 V. Exceeding 6.0 V may cause permanent damage or violate functional specifications. For reliable operation, maintain VIN within 2.5–6.0 V, especially under transient conditions where overshoot could approach the 7 V limit.
Does the MIC5317-1.5YD5-TR require an external pull-up resistor on the EN pin?
Yes - the EN pin of the MIC5317-1.5YD5-TR is CMOS-input and must never be left floating. A pull-up resistor (typically 100 kΩ to VIN or 3.3 V) ensures deterministic startup and prevents indeterminate output states. The MIC5317-1.5YD5-TR will not function reliably without proper EN biasing, as confirmed in Section 4.4 of the datasheet.
Can the MIC5317-1.5YD5-TR operate without an output capacitor?
No - the MIC5317-1.5YD5-TR requires a minimum 1 μF ceramic output capacitor connected from VOUT to GND for stability, as explicitly stated in Sections 4.2 and 5.0. Omitting it risks oscillation, poor transient response, or failure to regulate. X5R/X7R dielectrics are recommended; Y5V is not suitable due to capacitance loss over temperature.
What is the thermal resistance (θJA) of the MIC5317-1.5YD5-TR package?
The MIC5317-1.5YD5-TR uses the 5-Lead TSOT23 package, which has a junction-to-ambient thermal resistance (θJA) of 253°C/W, per Table 4-1 in the datasheet. This value assumes standard JEDEC 2-layer board conditions; actual θJA improves with PCB copper area, thermal vias to inner ground planes, and connection of the exposed pad (EP) to GND.
Is the MIC5317-1.5YD5-TR suitable for RF transmitter power supply applications?
No - the MIC5317-1.5YD5-TR is explicitly stated as "not suitable for RF transmitter systems" in Section 4.0 of the datasheet. While its 70 dB PSRR benefits RF receivers and analog front-ends, its architecture and characterization do not guarantee performance under the high-frequency, high-dV/dt, and pulsed-current demands of RF power amplifiers.
MIC5317-1.5YD5-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- 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:
- TSOT-23-5
MIC5317-1.5YD5-TR FAQ
1.How can I place an order for MIC5317-1.5YD5-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5317-1.5YD5-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 MIC5317-1.5YD5-TR reliable?
The price and inventory of MIC5317-1.5YD5-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5317-1.5YD5-TR is usually 5 days.
3.What payment methods are accepted for MIC5317-1.5YD5-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5317-1.5YD5-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5317-1.5YD5-TR?
MIC5317-1.5YD5-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5317-1.5YD5-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 MIC5317-1.5YD5-TR?
For technical support, including MIC5317-1.5YD5-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5317-1.5YD5-TR requirements.
6.How does Aetrix verify that MIC5317-1.5YD5-TR is sourced from the original manufacturer or authorized distributors?
All MIC5317-1.5YD5-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 MIC5317-1.5YD5-TR meets industry standards.
7.What is the process for return or replacement of MIC5317-1.5YD5-TR?
All MIC5317-1.5YD5-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5317-1.5YD5-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 MIC5317-1.5YD5-TR part is unused and in its original packaging.
Return procedure for MIC5317-1.5YD5-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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