My Inquiry
My Account
Microchip Technology MIC5209-3.0YM-TR
- Part No.:
- MIC5209-3.0YM-TR
- Manufacturer:
- Microchip Technology
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MIC5209-3.0YM-TR.pdf
- Description:
- IC REG LINEAR 3V 500MA 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MIC5209-3.0YM-TR from Microchip Technology is a fixed-output 3.0 V, 500 mA low-dropout linear regulator in SOIC-8 package, featuring 500 mV max dropout at full load, ±1% output accuracy, and ultra-low-noise operation with optional 470 pF bypass capacitor. It delivers stable power to Pentium II Slot 1/2 clock synthesizers, portable computing rails, and noise-sensitive analog circuitry.
For engineers reviewing the MIC5209-3.0YM-TR datasheet, MIC5209-3.0YM-TR pinout, MIC5209-3.0YM-TR application, or MIC5209-3.0YM-TR equivalent, this page provides verified electrical parameters, thermal performance data, enable/shutdown behavior, SOIC-8 pin mapping, and validated alternative LDOs for battery-powered and post-regulation designs.
Technical Context
The MIC5209-3.0YM-TR integrates a bandgap reference, current-limiting circuitry, and thermal shutdown protection within a CMOS-compatible enable-controlled architecture. Its ultra-low-noise capability relies on an internal reference bypass path accessible via the BYP pin, requiring ≥2.2 µF output capacitance when the 470 pF capacitor is used.
This SOIC-8 variant supports logic-level enable (EN) input with <0.4 V logic-low threshold and <2.0 V logic-high activation, delivering 80–650 µA ground current across 100 µA–500 mA load range. Junction temperature is rated from –40°C to +125°C, with θJA = 50°C/W on standard PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.0 V ±1% over –40°C to +125°C; ensures stable core voltage for Slot-1 peripherals without external feedback. |
| Max Dropout Voltage | 500 mV at 500 mA load; enables operation from 3.5 V input while maintaining regulation down to 3.0 V rail. |
| Ground Current | 80 µA at 100 µA load, 8 mA at 500 mA load; minimizes quiescent loss in battery-critical applications. |
| PSRR | 75 dB at 120 Hz; suppresses ripple from upstream SMPS stages in hybrid power architectures. |
| Output Noise | 300 nV/√Hz (with 470 pF BYP cap); meets low-noise requirements for RF biasing and precision ADC references. |
| Enable Threshold | Logic-high ≥2.0 V, logic-low ≤0.4 V; compatible with 3.3 V GPIO without level-shifting. |
| Thermal Resistance | θJA = 50°C/W (SOIC-8, 1"² copper); supports 1.6 W dissipation at +25°C ambient with standard layout. |
Pinout & Package
Package: 8-Lead SOIC (M), thermally enhanced with fused lead frame; exposed pad not present - GND pins (5–8) are internally bonded for low-inductance return path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Supply | Accepts 3.5 V to 16 V input; requires ≥1 µF ceramic bypass to GND if >10" trace length or battery source. |
| 2 (EN) | Enable Control | CMOS-compatible input; drives regulator ON/OFF with near-zero shutdown current (<0.1 µA). |
| 3 (OUT) | Regulated Output | Delivers 3.0 V ±1% at up to 500 mA; connects directly to load with low-ESR tantalum or ceramic output cap. |
| 4 (BYP) | Reference Bypass | Connects 470 pF capacitor to GND to reduce output noise by >40%; increases stability margin requirement. |
| 5–8 (GND) | Power Ground | Four internally connected GND pins minimize ground impedance and improve thermal conduction to PCB plane. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Noise Operation | 300 nV/√Hz output noise with 470 pF BYP cap - critical for powering RF front-ends and high-resolution ADCs. |
| No-Load Stability | Maintains regulation at 0 mA load - eliminates need for dummy loads in CMOS RAM keep-alive circuits. |
| Reversed-Battery Protection | Withstands –20 V input without damage - protects downstream circuitry in automotive and portable battery swaps. |
| Tight Line/Load Regulation | 0.05% load regulation (100 µA–500 mA), 0.009% line regulation (VIN = VOUT+1V to 16 V) - ensures consistent voltage under dynamic conditions. |
| Thermal Shutdown & Current Limit | Triggers at ~165°C junction temp and 700–1000 mA short-circuit current - prevents catastrophic failure during fault events. |
Applications
| Pentium II Slot-1 Power Supply | Laptop Core Voltage Rail |
|---|---|
|
Use Scenario: Powers Intel Slot-1 clock synthesizer and associated logic at 3.0 V ±3% under 320 mA worst-case load. IC Role / Device Role / Timing Role: Primary low-noise post-regulator converting 3.3 V SMPS output to clean 3.0 V timing rail. Use Value: 500 mV dropout ensures regulation even when 3.3 V supply sags to 3.0 V; ±1% accuracy meets Intel's ±5% spec with margin. |
Use Scenario: Supplies 3.0 V to real-time clock (RTC) and low-power microcontroller peripherals in clamshell notebooks. IC Role / Device Role / Timing Role: Standby LDO maintaining timekeeping and wake-up logic during sleep mode. Use Value: 80 µA ground current at light load extends battery life; no-load stability avoids brownout during deep-sleep transitions. |
| Cellular Baseband Biasing | Industrial Sensor Signal Chain |
|
Use Scenario: Provides ultra-low-noise 3.0 V bias to GSM/GPRS baseband ICs and RF synthesizer VCOs. IC Role / Device Role / Timing Role: Low-noise analog supply decoupling sensitive PLL and mixer stages. Use Value: 300 nV/√Hz noise floor with BYP cap prevents phase noise degradation in transmit/receive paths. |
Use Scenario: Powers 24-bit delta-sigma ADC reference buffers and instrumentation amplifiers in factory-floor sensors. IC Role / Device Role / Timing Role: Precision analog domain regulator isolating measurement circuitry from digital switching noise. Use Value: 0.05% load regulation maintains ADC reference integrity across varying sensor excitation currents. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-noise LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-3002E/TO | 300 mA rating, 600 mV dropout at full load, no enable pin, SOT-23 package. | Limited to lower-current, space-constrained designs without shutdown control. | Select when board area is critical and enable functionality is unnecessary; verify thermal margin at 500 mA. |
| TPS7A2030PDQNR | 300 mA, 170 mV dropout at 300 mA, 7 µA quiescent current, DQN (X2SON-4) package. | Better efficiency at light loads but lower max current and no BYP pin for noise reduction. | Prefer for ultra-low-IQ battery systems where 300 mA suffices and noise <300 nV/√Hz is acceptable. |
Compared with MIC5209-3.0YM-TR, MCP1700-3002E/TO trades enable control and noise performance for smaller footprint, while TPS7A2030PDQNR offers superior light-load efficiency but lacks the 470 pF bypass path essential for sub-300 nV/√Hz noise targets.
Availability
MIC5209-3.0YM-TR is available at Aetrix Electronics and suitable for Pentium II Slot-1 power supplies, laptop RTC subsystems, and cellular baseband biasing requiring stable component supply, long-lifecycle support, and guaranteed parametric compliance.
Supply support for MIC5209-3.0YM-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 global manufacturing and quality certifications.
The MIC5209 product line delivers high-accuracy, low-noise LDO regulators optimized for battery-powered handheld devices and noise-sensitive analog subsystems in computing and communications equipment.
FAQ
What is the maximum input voltage for MIC5209-3.0YM-TR?
The MIC5209-3.0YM-TR supports an absolute maximum input voltage of +20 V, but its recommended operating range is +3.5 V to +16 V. For reliable 3.0 V output regulation, VIN must exceed VOUT by at least the dropout voltage - minimum 3.5 V at 500 mA load. Exceeding +16 V risks exceeding safe power dissipation limits even at light loads.
Does MIC5209-3.0YM-TR require an external bypass capacitor?
The MIC5209-3.0YM-TR does not require an external bypass capacitor to operate, but connecting a 470 pF capacitor from BYP (Pin 4) to GND reduces output noise from 500 nV/√Hz to 300 nV/√Hz. When used, the output capacitor must be increased to ≥2.2 µF to maintain loop stability - omitting it risks oscillation under transient load changes.
Can MIC5209-3.0YM-TR be used without the EN pin connected?
Yes - MIC5209-3.0YM-TR operates continuously when EN (Pin 2) is tied to IN (Pin 1). The enable function is optional; leaving EN unconnected is not recommended due to potential noise-induced shutdown. For always-on operation, hard-wire EN to IN with a direct trace or 0 Ω resistor to ensure logic-high bias and eliminate floating node risk.
What is the thermal performance of MIC5209-3.0YM-TR on a standard PCB?
On a 1"² copper-clad FR4 board, MIC5209-3.0YM-TR exhibits θJA = 50°C/W. At 500 mA load with 3.5 V input, power dissipation is ~1.0 W, resulting in ~50°C junction-to-ambient rise above ambient. With +25°C ambient, junction temperature reaches ~75°C - well within the –40°C to +125°C rating. Adding thermal vias under GND pins further improves margin.
Is MIC5209-3.0YM-TR RoHS compliant and lead-free?
Yes - MIC5209-3.0YM-TR is RoHS compliant and lead-free per JEDEC standards. The "-TR" suffix denotes tape-and-reel packaging, and the SOIC-8 package carries the Pb-free JEDEC matte tin (Sn) finish designation. Full compliance documentation, including material declarations and test reports, is available through Microchip's Quality Portal.
MIC5209-3.0YM-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 500mA
- Current - Output:
- 500mA
- Current - Quiescent (Iq):
- 170 µA
- Current - Supply (Max):
- 25 mA
- PSRR:
- 75dB (120Hz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MIC5209-3.0YM-TR FAQ
1.How can I place an order for MIC5209-3.0YM-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5209-3.0YM-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 MIC5209-3.0YM-TR reliable?
The price and inventory of MIC5209-3.0YM-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5209-3.0YM-TR is usually 5 days.
3.What payment methods are accepted for MIC5209-3.0YM-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5209-3.0YM-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5209-3.0YM-TR?
MIC5209-3.0YM-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5209-3.0YM-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 MIC5209-3.0YM-TR?
For technical support, including MIC5209-3.0YM-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5209-3.0YM-TR requirements.
6.How does Aetrix verify that MIC5209-3.0YM-TR is sourced from the original manufacturer or authorized distributors?
All MIC5209-3.0YM-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 MIC5209-3.0YM-TR meets industry standards.
7.What is the process for return or replacement of MIC5209-3.0YM-TR?
All MIC5209-3.0YM-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5209-3.0YM-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 MIC5209-3.0YM-TR part is unused and in its original packaging.
Return procedure for MIC5209-3.0YM-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MIC5209-3.0YM-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…
