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Microchip Technology MIC5306-1.8YD5
- Part No.:
- MIC5306-1.8YD5
- Manufacturer:
- Microchip Technology
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MIC5306-1.8YD5.pdf
- Description:
- IC REG LIN 1.8V 150MA TSOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,515
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Product details
Overview
MIC5306-1.8YD5 from Microchip Technology is a 150 mA micropower low-dropout linear regulator with fixed 1.8 V output, 2.25–5.5 V input range, 45 mV dropout at 100 mA, ±1.0% initial output accuracy, and TTL-compatible enable pin. It delivers stable power to baseband logic in space-constrained portable electronics.
For engineers reviewing the MIC5306-1.8YD5 datasheet, MIC5306-1.8YD5 pinout, MIC5306-1.8YD5 application, or MIC5306-1.8YD5 equivalent, this page provides verified technical context, package mapping, real-world design meaning of key specs, and validated alternative options for battery-powered LDO selection.
Technical Context
The MIC5306-1.8YD5 integrates a CMOS pass element with internal reference and error amplifier, enabling ultra-low quiescent current (16 μA) while maintaining fast transient response and 62 dB PSRR at 10 Hz–1 kHz. Its μCap architecture stabilizes with only 1 μF ceramic output capacitance.
It features active-high enable logic with 0.2 V logic-low threshold, thermal shutdown at 150°C with 15°C hysteresis, and current limiting at 175–500 mA. The device operates across –40°C to +125°C junction temperature and supports zero-current shutdown mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±1.0% initial accuracy; ensures stable core voltage for 1.8 V logic rails without external feedback. |
| Max Output Current | 150 mA continuous; sufficient for powering baseband processors, RF transceivers, or sensor subsystems in handheld devices. |
| Dropout Voltage | 45 mV @ 100 mA; enables regulation from 1.85 V input, extending battery runtime in single-cell Li-ion or Li-poly systems. |
| Quiescent Current | 16 μA operating / 0.01 μA shutdown; minimizes standby power loss in always-on or low-duty-cycle applications. |
| PSRR | 62 dB @ 10 Hz–1 kHz; suppresses ripple from noisy DC-DC converters feeding the LDO input. |
| Enable Threshold | VIL ≤ 0.2 V, VIH ≥ 1.0 V; compatible with standard CMOS and TTL logic outputs without level-shifting. |
| Thermal Shutdown | 150°C activation with 15°C hysteresis; prevents permanent damage during sustained overload or poor PCB thermal layout. |
Pinout & Package
Package: 5-Lead Thin SOT-23 (TSOT-23-5), 1.6 mm × 1.6 mm footprint, 0.95 mm height, RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Supply input | Accepts 2.25–5.5 V input; requires local 1 μF bypass capacitor to GND for stability and noise rejection. |
| GND (Pin 2) | Ground reference | Primary return path for load and quiescent current; must be connected to low-impedance system ground plane. |
| EN (Pin 3) | Enable control | Active-high logic input; pulling below 0.2 V disables regulator and reduces supply current to ≤1 μA. |
| NC (Pin 4) | No connect | Internally unconnected; must remain floating-no PCB trace or component connection permitted. |
| OUT (Pin 5) | Regulated output | Delivers 1.8 V ±1.0% to load; requires 1 μF ceramic capacitor (ESR < 300 mΩ) to GND for loop stability. |
Key Features
| Feature | Design Value |
|---|---|
| μCap ceramic stability | Stable with 1 μF X5R/X7R ceramic output capacitor-eliminates need for larger, costlier tantalum or electrolytic types. |
| Ultra-low IQ operation | 16 μA typical ground current across full load range (0–150 mA); preserves battery life in sleep modes. |
| Low dropout performance | 25 mV dropout @ 50 mA and 45 mV @ 100 mA enables use with weak or deeply discharged batteries. |
| Fast transient response | Sub-500 μs turn-on time and minimal output voltage sag under 100 μA → 150 mA load steps-critical for burst-mode digital loads. |
| Integrated protection | Current limit (175–500 mA) and thermal shutdown (150°C) prevent failure during short-circuit or thermal overload events. |
Applications
| Mobile Baseband Power | Standby Rail Generation |
|---|---|
Use Scenario: Powering baseband processor I/O and memory interfaces in cellular handsets and LTE modules. IC Role / Device Role / Timing Role: Primary 1.8 V LDO supplying clean, low-noise voltage to high-speed digital logic blocks. Use Value: 1.8 V output matches industry-standard I/O voltage for 28 nm/40 nm baseband SoCs; 45 mV dropout extends usable battery range by >15 minutes per charge cycle. |
Use Scenario: Providing always-on 1.8 V supply to real-time clocks, wake-up controllers, and low-power sensors in notebook PCs. IC Role / Device Role / Timing Role: Standby regulator activated during system suspend-to-RAM or deep-sleep states. Use Value: 16 μA quiescent current limits standby drain to <1 μA per hour-enabling >30-day shelf life without recharge. |
| Portable Audio Codec Supply | PDA Application Processor Core |
Use Scenario: Delivering low-noise 1.8 V bias to audio DACs, ADCs, and headphone amplifiers in Bluetooth earbuds. IC Role / Device Role / Timing Role: Low-noise analog rail generator decoupled from noisy digital supplies. Use Value: 91 μVRMS output noise and 62 dB PSRR prevent audible hiss or distortion in 24-bit audio paths. |
Use Scenario: Supplying 1.8 V core voltage to ARM9/ARM11 application processors in legacy PDAs and industrial HMIs. IC Role / Device Role / Timing Role: Main core LDO supporting dynamic voltage scaling during CPU frequency transitions. Use Value: Fast transient response (<500 μs) maintains voltage within ±2% during 0→150 mA load jumps-preventing processor reset or timing violation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-1802E/TT | Same 1.8 V output, but 250 mA rating and 1.6 μA IQ; uses different TSOT-23-5 pinout (EN on Pin 2, GND on Pin 3). | Lacks current limit spec; rated for lower ambient max (85°C vs. 125°C junction) - less suitable for thermally dense handheld designs. | Select when ultra-low IQ dominates over thermal robustness and precise current limiting. |
| Torex XC6206P182MR-G | 1.8 V, 150 mA, 1.0 μA IQ, but no enable pin; SOT-23-3 package (3-pin, no EN or NC). | Requires external MOSFET for enable functionality; lacks thermal shutdown - demands additional protection circuitry. | Choose only for cost-sensitive, non-enabling applications where board space is constrained and thermal margin is ample. |
Compared with MCP1700T-1802E/TT and XC6206P182MR-G, the MIC5306-1.8YD5 uniquely combines 150 mA capability, integrated enable, thermal shutdown, and 125°C junction rating in a standard TSOT-23-5 footprint-making it optimal for thermally demanding, feature-complete portable LDO designs.
Availability
MIC5306-1.8YD5 is available at Aetrix Electronics and suitable for mobile baseband power, standby rail generation, and portable audio codec supply requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for MIC5306-1.8YD5 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 emphasis on reliability, longevity, and embedded system integration.
The MIC5306-1.8YD5 belongs to Microchip's μCap LDO family, engineered specifically for space-constrained, battery-powered applications where ultra-low quiescent current, ceramic capacitor compatibility, and fast transient response are critical.
FAQ
What is the maximum input voltage rating for the MIC5306-1.8YD5?
The MIC5306-1.8YD5 has an absolute maximum input voltage (VIN) rating of +6 V. However, its specified operating input range is +2.25 V to +5.5 V. Exceeding 5.5 V may cause functional instability or accelerated degradation, even if below the 6 V absolute limit. Always maintain VIN within 2.25–5.5 V for reliable operation of the MIC5306-1.8YD5.
Does the MIC5306-1.8YD5 require an external pull-up resistor on the EN pin?
No, the MIC5306-1.8YD5 does not require an external pull-up resistor on the EN pin. Its enable input is CMOS-compatible with defined logic thresholds (VIL ≤ 0.2 V, VIH ≥ 1.0 V) and draws only 0.01–1 μA. If enable functionality is unused, EN should be directly tied to VIN-not left floating-to ensure reliable operation of the MIC5306-1.8YD5.
Can the MIC5306-1.8YD5 operate with a 100 nF output capacitor?
No-the MIC5306-1.8YD5 requires a minimum 1 μF ceramic output capacitor for stability, as confirmed in the datasheet's Application Information section. Using 100 nF violates the μCap design criteria and risks oscillation or poor transient response. The MIC5306-1.8YD5 is optimized for 1 μF (X5R/X7R, ESR < 300 mΩ), and larger values improve load step immunity.
What is the thermal resistance (θJA) of the MIC5306-1.8YD5 in its TSOT-23-5 package?
The MIC5306-1.8YD5 in the 5-Lead TSOT-23 package has a junction-to-ambient thermal resistance (θJA) of 235°C/W under recommended minimum footprint conditions. This value assumes standard PCB layout with no thermal vias or copper pour. Derating is required above 89.8°C ambient at full 150 mA load, as calculated using θJA and the 125°C max junction temperature of the MIC5306-1.8YD5.
Is the NC pin on the MIC5306-1.8YD5 safe to connect to ground or leave unconnected?
The NC (No Connect) pin (Pin 4) of the MIC5306-1.8YD5 must remain unconnected-neither grounded nor tied to any net. It is internally isolated and electrically floating. Connecting it to ground or any other node may compromise device performance or reliability. The MIC5306-1.8YD5 datasheet explicitly prohibits routing traces or placing components on the NC pin.
MIC5306-1.8YD5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.2V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 25 µA
- Current - Supply (Max):
- -
- PSRR:
- 62dB ~ 35dB (10Hz ~ 20kHz)
- 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
MIC5306-1.8YD5 FAQ
1.How can I place an order for MIC5306-1.8YD5 through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5306-1.8YD5 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 MIC5306-1.8YD5 reliable?
The price and inventory of MIC5306-1.8YD5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5306-1.8YD5 is usually 5 days.
3.What payment methods are accepted for MIC5306-1.8YD5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5306-1.8YD5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5306-1.8YD5?
MIC5306-1.8YD5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5306-1.8YD5 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 MIC5306-1.8YD5?
For technical support, including MIC5306-1.8YD5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5306-1.8YD5 requirements.
6.How does Aetrix verify that MIC5306-1.8YD5 is sourced from the original manufacturer or authorized distributors?
All MIC5306-1.8YD5 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 MIC5306-1.8YD5 meets industry standards.
7.What is the process for return or replacement of MIC5306-1.8YD5?
All MIC5306-1.8YD5 units undergo pre-shipment inspection (PSI). If there is an issue with MIC5306-1.8YD5, 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 MIC5306-1.8YD5 part is unused and in its original packaging.
Return procedure for MIC5306-1.8YD5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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