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Microchip Technology MIC5203-2.6YM5-TR
- Part No.:
- MIC5203-2.6YM5-TR
- Manufacturer:
- Microchip Technology
- Package:
- SC-74A, SOT-753
- Datasheet:
-
MIC5203-2.6YM5-TR.pdf
- Description:
- IC REG LINEAR 2.6V 80MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,960
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Product details
Overview
MIC5203-2.6YM5-TR from Micrel is a fixed-output 2.6V, 80mA low-dropout linear regulator in SOT-23-5 package with 300mV dropout at full load, 225µA ground current at 20mA output, and ±3% initial output voltage accuracy. It features logic-compatible enable input, reversed-battery protection, and stable operation with only 0.47µF ceramic output capacitance-designed for battery-powered handheld devices requiring ultra-low quiescent power and compact footprint.
For engineers reviewing the MIC5203-2.6YM5-TR datasheet, MIC5203-2.6YM5-TR pinout, MIC5203-2.6YM5-TR application, or MIC5203-2.6YM5-TR equivalent, key selection criteria include dropout performance under 80mA load, shutdown current <10µA, thermal shutdown behavior, compatibility with low-ESR ceramic capacitors, and SOT-23-5 pin assignment for EN/IN/GND/OUT/NC.
Technical Context
The MIC5203-2.6YM5-TR uses a PNP pass transistor architecture enabling ultra-low dropout voltage and minimal ground current increase in dropout. Its enable input accepts TTL/CMOS logic levels (VIH ≥ 2.0V, VIL ≤ 0.6V) and operates independently up to 20V, decoupling control rail requirements from input supply.
Stability is guaranteed with 0.47µF ceramic output capacitor across –40°C to +125°C, eliminating need for tantalum or electrolytic types. Internal protection includes current limiting (180–250mA), thermal shutdown, and reversed-input polarity protection-critical for portable systems with removable batteries.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.6V ±3% over temperature and line/load, enabling direct replacement of 2.6V logic rails without external feedback. |
| Max Output Current | 80mA guaranteed continuous output, sufficient for powering microcontroller cores, sensors, or RF front-end bias circuits. |
| Dropout Voltage | 300mV typical at 80mA load, allowing operation from 2.9V input-ideal for single-cell Li-ion or two-cell alkaline systems. |
| Ground Current | 225µA at 20mA output; increases only slightly in dropout, extending battery runtime in portable applications. |
| Enable Threshold | VIL ≤ 0.6V (shutdown), VIH ≥ 2.0V (active); supports direct interface with 1.8V/3.3V/5V logic without level shifters. |
| Shutdown Current | ≤10µA max, reducing system standby power to near-zero in sleep modes. |
| Capacitor Stability | Stable with ≥0.47µF ceramic output capacitor-enables use of low-cost, miniature 0402/0603 MLCCs. |
Pinout & Package
SOT-23-5 package: 2.9mm × 1.6mm × 1.1mm body, gull-wing leads, RoHS-compliant, rated for –40°C to +125°C junction temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input supply connection | Accepts 2.5V to 16V input; reverse-polarity protected-safe for battery insertion errors. |
| 2 (GND) | Ground reference | Low-impedance return path for regulator and load; must be routed with minimal trace inductance. |
| 3 (EN) | Enable control input | TTL/CMOS-compatible; pulled high to enable, ≤0.6V to shut down; draws ≤50µA active current. |
| 4 (NC) | No internal connection | Not bonded; must remain unconnected-no pull-up/down or routing required. |
| 5 (OUT) | Regulated output | Delivers stable 2.6V; requires ≥0.47µF ceramic capacitor to GND within 5mm for stability. |
Key Features
| Feature | Design Value |
|---|---|
| µCap ceramic-stable regulation | Eliminates need for large, temperature-sensitive tantalum capacitors-reduces BOM cost and board area by >50% vs. legacy LDOs. |
| Reversed-battery protection | Prevents damage during incorrect battery installation-removes need for external series diode and its associated 300mV forward drop. |
| Zero off-mode current | Reduces system standby power to sub-10µA, enabling multi-year battery life in always-on sensor nodes. |
| Thermal & current limiting | Self-protects during short-circuit or overload-no external foldback circuitry needed for robust field deployment. |
| Wide input voltage range | Operates from 2.5V to 16V, supporting diverse sources including Li-ion, NiMH, USB, and industrial 12V rails. |
Applications
| Barcode Scanners | Laptop Subsystem Power |
|---|---|
Use Scenario: Portable handheld barcode scanners powered by single-cell Li-ion batteries with intermittent high-current laser/decoder bursts. IC Role / Device Role / Timing Role: Primary 2.6V supply for CMOS image sensor and decode ASIC, activated only during scan trigger. Use Value: 300mV dropout enables >3.0V operation down to 2.9V battery voltage; 0.47µF ceramic capacitor ensures fast transient response to 50mA pulse loads. |
Use Scenario: Always-on real-time clock (RTC) and CMOS RAM backup power in notebook computers during hibernation. IC Role / Device Role / Timing Role: Low-quiescent 2.6V keeper supply maintaining volatile memory state when main 3.3V rail is off. Use Value: 225µA ground current at light load and zero off-mode current extend coin-cell life beyond 5 years; no-load stability prevents brownout resets. |
| Wireless Sensor Nodes | SMPS Post-Regulator |
Use Scenario: Battery-operated Zigbee/Bluetooth LE sensor nodes transmitting periodic temperature/humidity readings. IC Role / Device Role / Timing Role: Clean 2.6V bias for RF transceiver IC and analog front-end, enabled synchronously with transmission windows. Use Value: Enable pin allows precise timing control-shuts down regulator between transmissions to cut leakage; 10µA shutdown current dominates system sleep budget. |
Use Scenario: Post-regulation stage following a switching DC-DC converter to reduce ripple and noise for sensitive analog circuits. IC Role / Device Role / Timing Role: Low-noise linear post-regulator cleaning 3.3V buck output to deliver ultra-stable 2.6V for ADC reference or op-amp bias. Use Value: 50ppm/°C tempco and 0.5% load regulation ensure <1mV output drift across operating conditions-critical for 12-bit+ measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700T-2602E/MB | 250mA output, 1.6µA quiescent current, but 600mV dropout at 250mA; SOT-23-3 (no enable). | Lacks logic-controlled shutdown and reversed-battery protection; requires external enable circuitry for on/off control. | Select when higher output current is needed and enable functionality is implemented externally. |
| TPS7A0526PDQNR | 200mA output, 250nA shutdown current, 170mV dropout at 100mA; same SOT-23-5 pinout but different EN logic (active-low). | Active-low enable conflicts with MIC5203-2.6YM5-TR's active-high EN; requires PCB-level inversion or firmware adaptation. | Select for ultra-low shutdown current where active-low control is acceptable or can be accommodated. |
Compared with MCP1700T-2602E/MB and TPS7A0526PDQNR, the MIC5203-2.6YM5-TR provides optimal balance of ultra-low dropout (300mV), integrated enable (active-high), reversed-battery protection, and ceramic-capacitor stability-making it uniquely suited for space-constrained, battery-powered systems where reliability and minimal external components are critical.
Availability
MIC5203-2.6YM5-TR is available at Aetrix Electronics and suitable for portable medical monitors, handheld test equipment, and industrial IoT edge sensors requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for MIC5203-2.6YM5-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 semiconductor company specializing in power management, analog, and mixed-signal ICs before its acquisition by Microchip Technology in 2015.
The MIC5203 family was designed specifically for ultra-low-power, battery-critical applications-emphasizing minimal dropout, ceramic-capacitor compatibility, and integrated protection to eliminate discrete support components.
FAQ
What is the maximum input voltage rating for MIC5203-2.6YM5-TR?
The MIC5203-2.6YM5-TR has an absolute maximum input voltage of +20V, but its recommended operating input voltage range is 2.5V to 16V. Operation above 16V risks exceeding thermal limits under load, especially in the SOT-23-5 package with θJA = 220°C/W. For reliable long-term use, keep VIN ≤ 16V at full 80mA load and ambient temperatures up to +85°C.
Does MIC5203-2.6YM5-TR require an input capacitor?
Yes-MIC5203-2.6YM5-TR requires a 0.1µF ceramic capacitor from IN to GND if the input source is more than 10 inches of wire away from the bulk filter capacitor or when powered directly by a battery. This minimizes high-frequency noise and prevents instability due to input trace inductance, especially during load transients.
Can MIC5203-2.6YM5-TR operate with no load?
Yes-MIC5203-2.6YM5-TR remains stable and in regulation with zero load current, unlike many older LDOs that require minimum load for stability. This makes it ideal for CMOS RAM keep-alive, RTC backup, and other ultra-low-power applications where the output may be disconnected or draw only leakage current.
What is the function of Pin 4 (NC) on MIC5203-2.6YM5-TR?
Pin 4 on MIC5203-2.6YM5-TR is a no-connect (NC) terminal-internally unconnected and not bonded to the die. It must remain floating with no external connection, pull-up, or pull-down. Routing traces or placing vias on this pad violates the SOT-23-5 mechanical specification and may cause assembly defects or electrical interference.
How does reversed-battery protection work in MIC5203-2.6YM5-TR?
MIC5203-2.6YM5-TR incorporates internal circuitry that blocks current flow when the input polarity is reversed (i.e., GND > IN). This prevents damage to downstream components and eliminates the need for an external series protection diode-preserving the full 2.6V output without forward-voltage loss or thermal overhead.
MIC5203-2.6YM5-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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):
- 2.6V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.6V @ 80mA
- Current - Output:
- 80mA
- Current - Quiescent (Iq):
- 750 µA
- Current - Supply (Max):
- 3 mA
- PSRR:
- -
- 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:
- SOT-23-5
MIC5203-2.6YM5-TR FAQ
1.How can I place an order for MIC5203-2.6YM5-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5203-2.6YM5-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 MIC5203-2.6YM5-TR reliable?
The price and inventory of MIC5203-2.6YM5-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5203-2.6YM5-TR is usually 5 days.
3.What payment methods are accepted for MIC5203-2.6YM5-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5203-2.6YM5-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5203-2.6YM5-TR?
MIC5203-2.6YM5-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5203-2.6YM5-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 MIC5203-2.6YM5-TR?
For technical support, including MIC5203-2.6YM5-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5203-2.6YM5-TR requirements.
6.How does Aetrix verify that MIC5203-2.6YM5-TR is sourced from the original manufacturer or authorized distributors?
All MIC5203-2.6YM5-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 MIC5203-2.6YM5-TR meets industry standards.
7.What is the process for return or replacement of MIC5203-2.6YM5-TR?
All MIC5203-2.6YM5-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5203-2.6YM5-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 MIC5203-2.6YM5-TR part is unused and in its original packaging.
Return procedure for MIC5203-2.6YM5-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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