My Inquiry
My Account
Microchip Technology MIC5308-1.8YD6-TR
- Part No.:
- MIC5308-1.8YD6-TR
- Manufacturer:
- Microchip Technology
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
MIC5308-1.8YD6-TR.pdf
- Description:
- IC REG LIN 1.8V 150MA TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,564
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MIC5308-1.8YD6-TR from Micrel is a fixed-output 1.8V, 150mA ultra-low dropout linear regulator with 45mV dropout at full load, 23µA ground current under full load, and 90dB PSRR at 1kHz-designed for battery-powered portable electronics requiring high efficiency and fast transient response.
For engineers reviewing the MIC5308-1.8YD6-TR datasheet, MIC5308-1.8YD6-TR pinout, MIC5308-1.8YD6-TR application, or MIC5308-1.8YD6-TR equivalent, this page delivers verified package mapping (TSOT-23-6), confirmed bias-input architecture, validated enable-controlled zero-off-mode operation, and real-world noise suppression performance with 10nF BYP capacitor.
Technical Context
The MIC5308-1.8YD6-TR employs a dual-supply architecture: VIN powers the pass element while BIAS supplies the control circuitry, enabling ultra-low dropout (45mV @ 150mA) and stable regulation down to 1.6V input. It uses CMOS-based enable logic with active-high EN pin and integrated thermal shutdown + current limiting.
It operates across –40°C to +125°C with guaranteed 150mA output, supports 1µF ceramic output capacitance for stability, and achieves 28µVRMS output noise with 10nF BYP capacitor-optimized for digital loads in space-constrained mobile systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8V ±2% - ensures precise core voltage for 1.8V I/O or low-power microcontrollers without external feedback. |
| Max Output Current | 150mA over temperature - sufficient for RF transceivers, sensor interfaces, or baseband ICs in portable devices. |
| Dropout Voltage | 45mV typical @ 150mA - enables operation from 1.845V input, maximizing battery runtime in single-cell Li-ion or coin-cell systems. |
| Ground Current | 23µA typical @ full load - reduces quiescent power loss, critical for always-on subsystems like RTC or wake-up logic. |
| PSRR | 90dB @ 1kHz with 10nF BYP - suppresses switching noise from adjacent DC-DC converters feeding shared bias rails. |
| Enable Threshold | Logic-high EN ≥1.2V - compatible with 1.8V GPIOs; zero-off-mode draws ≤2µA when EN ≤0.2V. |
| Input Range | VIN = 1.6V to VBIAS; VBIAS = 2.5V to 5.5V - decouples headroom requirements: VIN can be as low as 1.6V while BIAS remains robust at 3.3V/5V. |
Pinout & Package
Package: 6-pin TSOT-23 (D6), 2.9mm × 1.6mm × 1.1mm body, exposed pad (EPAD) internally connected to GND for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Power Input for LDO Pass Element | Supplies current path to VOUT; minimum 1.6V input enables direct use after buck converter or single-cell battery. |
| 2 (GND) | Ground Reference | Common return for VIN, VOUT, EN, and BYP; EPAD must be soldered to PCB ground plane for thermal performance. |
| 3 (BIAS) | Bias Supply Input | Powers internal control circuitry independently; allows stable regulation even when VIN sags near VOUT. |
| 4 (BYP/ADJ) | Noise Bypass / Feedback Input | In fixed versions like MIC5308-1.8YD6-TR, functions as BYP: connect 10nF to GND to reduce reference noise and improve PSRR. |
| 5 (EN) | Active-High Enable | CMOS-compatible input; drives output ON when ≥1.2V, OFF when ≤0.2V; must not float to avoid indeterminate state. |
| 6 (VOUT) | Regulated Output | Delivers stable 1.8V to load; requires ≥1µF ceramic capacitor to GND for stability and transient response. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-Supply Architecture (VIN + BIAS) | Decouples pass-element and control-circuit power domains, enabling 45mV dropout at 150mA while maintaining PSRR >70dB. |
| Ultra-Low Ground Current | 23µA at full 150mA load - minimizes system standby power, extending battery life in always-on sensor nodes. |
| Zero-Off-Mode Shutdown | ≤2µA total current draw when EN is low - eliminates leakage paths, suitable for long-duration sleep modes. |
| Stable with 1µF Ceramic Output Cap | Eliminates need for large tantalum or electrolytic capacitors; supports X7R/X5R dielectrics for wide-temp stability. |
| Integrated Protection | Thermal shutdown and foldback current limiting prevent damage during overload or ambient temperature excursions. |
Applications
| Mobile Phone Baseband | GPS Receiver Front-End |
|---|---|
|
Use Scenario: Powers 1.8V analog front-end and digital baseband logic in dual-mode GSM/UMTS handsets. IC Role / Device Role / Timing Role: Low-noise LDO supplying clean 1.8V to RF synthesizer and ADC drivers. Use Value: 90dB PSRR at 1kHz rejects switching noise from PMIC DC-DC converters, preventing EVM degradation. |
Use Scenario: Supplies 1.8V to GPS RF front-end ICs and correlator ASICs in handheld navigation units. IC Role / Device Role / Timing Role: High-PSRR, low-dropout regulator delivering stable voltage under dynamic satellite signal acquisition loads. Use Value: 45mV dropout enables operation from 1.845V input, extending usable battery range during cold-start acquisition. |
| Portable Medical Sensor | Wearable Fitness Tracker |
|
Use Scenario: Powers ultra-low-power ECG/PPG analog signal chain in disposable patch monitors. IC Role / Device Role / Timing Role: Precision 1.8V supply for instrumentation amplifiers and sigma-delta ADCs. Use Value: 23µA ground current at full load preserves battery life over multi-week monitoring cycles. |
Use Scenario: Supplies 1.8V to BLE SoC and motion sensor hub in compact wrist-worn devices. IC Role / Device Role / Timing Role: Enable-controlled LDO providing rail during active BLE transmission bursts. Use Value: Zero-off-mode (<2µA) enables deep-sleep between sensor reads, achieving months of operation on CR2032. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise, low-IQ LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Torex XC6219B182MR-G | Single-supply LDO (no BIAS pin); 180mV dropout @ 150mA; 1.0µA IQ; 65dB PSRR @ 1kHz. | Lacks dual-rail architecture - less effective in ultra-low-VIN scenarios; lower PSRR limits noise-sensitive RF use. | Select when board space is constrained and BIAS rail unavailable; verify dropout margin with actual VIN min. |
| Analog Devices ADP125ARHZ-1.8-R7 | Single-supply LDO; 135mV dropout @ 150mA; 30µA IQ; 70dB PSRR @ 1kHz; integrated soft-start. | No BYP pin - limited noise filtering capability; higher ground current reduces battery life in always-on mode. | Prefer when soft-start is required for sequencing; avoid where 10nF BYP-driven PSRR >85dB is mandatory. |
Compared with MIC5308-1.8YD6-TR, the XC6219B182MR-G offers smaller footprint but sacrifices 45mV dropout advantage and PSRR headroom; the ADP125ARHZ-1.8-R7 adds soft-start yet increases ground current by 30% and lacks BYP-driven noise suppression.
Availability
MIC5308-1.8YD6-TR is available at Aetrix Electronics and suitable for mobile phones, GPS receivers, and portable medical sensors requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC5308-1.8YD6-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
Micrel Inc. was a U.S.-based analog and mixed-signal semiconductor company founded in 1978, acquired by Microchip Technology in 2015; known for high-performance power management and timing solutions.
The MIC5308 family targets ultra-low-power portable electronics, emphasizing dual-supply LDO architecture to maximize battery efficiency in space-constrained, noise-sensitive applications.
FAQ
What is the minimum input voltage required for MIC5308-1.8YD6-TR to regulate 1.8V output?
The MIC5308-1.8YD6-TR requires VIN ≥ 1.6V per datasheet specifications. With 45mV typical dropout at 150mA, it maintains regulation down to VIN = 1.845V. However, the absolute minimum VIN is 1.6V - meaning it can sustain 1.8V output only if dropout is ≤200mV, which occurs at lighter loads. For full 150mA, VIN must be ≥1.845V.
Does MIC5308-1.8YD6-TR require an external bypass capacitor, and what value is recommended?
Yes, MIC5308-1.8YD6-TR uses the BYP pin (Pin 4) for noise reduction. A 10nF ceramic capacitor from BYP to GND is recommended to achieve 90dB PSRR at 1kHz and minimize output voltage noise (28µVRMS). Larger values improve PSRR further but increase turn-on time slightly.
How does the BIAS pin function in MIC5308-1.8YD6-TR, and what voltage range is supported?
The BIAS pin (Pin 3) supplies power to the internal control circuitry independently of VIN. It accepts 2.5V to 5.5V, allowing stable operation even when VIN sags close to VOUT. This dual-rail design enables ultra-low dropout and improves line regulation - a key differentiator versus single-supply LDOs.
What protection features are integrated into MIC5308-1.8YD6-TR?
MIC5308-1.8YD6-TR includes thermal shutdown and foldback current limiting. When junction temperature exceeds 125°C or output current exceeds ~180mA, the device limits current and shuts down to prevent damage. These protections operate across the full –40°C to +125°C operating range without external components.
Can MIC5308-1.8YD6-TR be used with a 1µF output capacitor, and what dielectric type is preferred?
Yes, MIC5308-1.8YD6-TR is optimized for stability with ≥1µF ceramic output capacitance. X7R or X5R dielectrics are preferred due to ±15% capacitance shift over temperature; Y5V/Z5U types are discouraged as their >50% drift risks instability at temperature extremes.
MIC5308-1.8YD6-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- 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):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.15V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- -
- Current - Supply (Max):
- -
- PSRR:
- 90dB ~ 70dB (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:
- TSOT-23-6
MIC5308-1.8YD6-TR FAQ
1.How can I place an order for MIC5308-1.8YD6-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5308-1.8YD6-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 MIC5308-1.8YD6-TR reliable?
The price and inventory of MIC5308-1.8YD6-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5308-1.8YD6-TR is usually 5 days.
3.What payment methods are accepted for MIC5308-1.8YD6-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5308-1.8YD6-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5308-1.8YD6-TR?
MIC5308-1.8YD6-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5308-1.8YD6-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 MIC5308-1.8YD6-TR?
For technical support, including MIC5308-1.8YD6-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5308-1.8YD6-TR requirements.
6.How does Aetrix verify that MIC5308-1.8YD6-TR is sourced from the original manufacturer or authorized distributors?
All MIC5308-1.8YD6-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 MIC5308-1.8YD6-TR meets industry standards.
7.What is the process for return or replacement of MIC5308-1.8YD6-TR?
All MIC5308-1.8YD6-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5308-1.8YD6-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 MIC5308-1.8YD6-TR part is unused and in its original packaging.
Return procedure for MIC5308-1.8YD6-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC5308-1.8YD6-TR Tags
-
MIC5504-1.8YM5-TR
Microchip Technology
-
MIC5504-3.3YM5-TR
Microchip Technology
-
MIC5365-3.0YC5-TR
Microchip Technology
-
MIC5365-1.8YC5-TR
Microchip Technology
-
MIC5365-2.5YC5-TR
Microchip Technology
-
MIC5365-3.3YC5-TR
Microchip Technology
-
MIC5365-3.3YD5-TR
Microchip Technology
-
MIC5317-3.3YM5-TR
Microchip Technology
-
TLV1117LV33DCYR
Texas Instruments
-
MIC5317-3.3YMT-TZ
Microchip Technology
-
MIC5528-3.3YMT-TR
Microchip Technology
-
TLV75801PDRVR
Texas Instruments
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
