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Microchip Technology MIC5365-2.9YC5-TR
- Part No.:
- MIC5365-2.9YC5-TR
- Manufacturer:
- Microchip Technology
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
MIC5365-2.9YC5-TR.pdf
- Description:
- IC REG LINEAR 2.9V 150MA SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,093
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Product details
Overview
MIC5365-2.9YC5-TR from Micrel is a fixed-output 2.9V, 150mA low-dropout linear regulator in SC-70-5 package, delivering ±2% initial output accuracy, 155mV dropout at full load, and 29µA quiescent current - optimized for power-sensitive portable electronics such as GPS modules and handheld PMPs.
For engineers reviewing the MIC5365-2.9YC5-TR datasheet, MIC5365-2.9YC5-TR pinout, MIC5365-2.9YC5-TR application, or MIC5365-2.9YC5-TR equivalent, key selection criteria include its 2.5V–5.5V input range, stable operation with 1µF ceramic output capacitors, zero-off-mode shutdown current (<1µA), and thermal/current protection - all in a space-constrained SC-70 footprint.
Technical Context
The MIC5365-2.9YC5-TR implements a CMOS-based LDO architecture with active-high enable control and internal current limiting. Its feedback loop is compensated for stability with only 1µF ceramic output capacitance, eliminating need for external compensation components.
It operates across –40°C to +125°C junction temperature and features high PSRR (70dB up to 1kHz), low output noise (200µVRMS, 10Hz–100kHz), and fast 50–125µs turn-on time - enabling clean, responsive power delivery in battery-powered signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.9V ±2% initial accuracy ensures precise biasing for 2.8–3.0V logic rails without external resistors. |
| Max Output Current | 150mA guaranteed continuous output supports moderate-power microcontrollers and RF front-ends. |
| Dropout Voltage | 155mV @ 150mA enables operation down to VIN = 3.05V - critical for single-cell Li-ion or Li-poly systems. |
| Quiescent Current | 29µA typical ground current minimizes standby drain in always-on subsystems like real-time clocks. |
| PSRR | 70dB @ 1kHz suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
| Input Voltage Range | 2.5V to 5.5V accommodates wide battery chemistries (Li-ion, LiFePO₄, 3×NiMH) and intermediate supply rails. |
| Enable Threshold | Logic-high enable ≥1.2V allows direct interfacing with 1.8V/3.3V GPIO without level-shifting. |
Pinout & Package
SC-70-5 package: 1.25mm × 1.75mm footprint, 0.65mm pitch, exposed pad not present. Thermal resistance θJA = 256.5°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIN) | Supply Input | Accepts 2.5V–5.5V unregulated input; requires 1µF ceramic decoupling to GND per layout guidelines. |
| 2 (GND) | Ground Reference | Primary return path for load and quiescent current; must connect directly to low-impedance ground plane. |
| 3 (EN) | Enable Control | Active-high digital input; must be pulled high (>1.2V) to enable regulation; floating state is undefined and prohibited. |
| 4 (VOUT) | Regulated Output | Delivers stable 2.9V ±2% to load; requires 1µF ceramic capacitor to GND for stability and transient response. |
| 5 (NC) | No Connect | Internally unconnected pin; no electrical function - may be left unconnected or tied to GND for mechanical stability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 29µA typical operating current extends battery life in always-on sensor nodes and keep-alive circuits. |
| Zero-off-mode shutdown | Sub-1µA disable current eliminates parasitic drain when EN is low - essential for long-term storage or deep-sleep modes. |
| 1µF ceramic capacitor stability | Eliminates need for large or specialized output capacitors, reducing BOM cost and PCB area in space-constrained designs. |
| High PSRR (70dB @ 1kHz) | Preserves analog signal integrity in mixed-signal devices by rejecting ripple from noisy switcher-derived input supplies. |
| Thermal & current protection | Auto-recovering shutdown prevents damage during overload or elevated ambient conditions without external circuitry. |
Applications
| GPS Module Power Supply | Digital Camera Sensor Bias |
|---|---|
Use Scenario: Powers GNSS baseband IC and RF frontend in compact handheld GPS receivers operating from single-cell lithium batteries. IC Role / Device Role / Timing Role: Provides ultra-low-noise 2.9V rail for precision ADC reference and low-jitter clock generation circuitry. Use Value: 200µVRMS output noise and 70dB PSRR prevent phase noise degradation in GPS correlators, improving position fix accuracy. | Use Scenario: Supplies image sensor analog core and column ADC in portable digital cameras with tight thermal envelopes. IC Role / Device Role / Timing Role: Delivers stable 2.9V bias under dynamic load transients caused by pixel readout bursts. Use Value: 155mV dropout and 50µs turn-on time maintain regulation during rapid current surges, preventing image artifacts or frame drops. |
| Handheld PMP Audio Codec | Industrial Handheld Scanner Logic Rail |
Use Scenario: Powers stereo audio DAC and headphone amplifier in portable media players requiring low EMI and long battery runtime. IC Role / Device Role / Timing Role: Serves as clean analog supply for audio signal chain while coexisting with noisy digital processors on shared PCB. Use Value: 29µA quiescent current and zero-off-mode reduce standby consumption, extending playback time between charges. | Use Scenario: Supplies 2.9V logic rail to ARM Cortex-M microcontroller and barcode laser driver in rugged industrial scanners. IC Role / Device Role / Timing Role: Maintains regulation across –40°C to +85°C ambient while supporting intermittent 150mA laser pulses. Use Value: –40°C to +125°C junction rating and thermal shutdown ensure reliable operation in uncontrolled environments without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP1700-2902E/TO | 250mA rated, 1.6µA quiescent current, but only 60dB PSRR and 200mV dropout @ 250mA. | Better for ultra-low-IQ battery hold-up; less suitable for noise-sensitive analog loads. | Select when lowest possible shutdown current is primary; accept trade-offs in noise rejection and transient response. |
| Torex XC6206P292MR-G | 150mA rated, 1µF-stable, but ±3% output accuracy and no enable pin - always-on operation only. | Suitable for cost-sensitive, non-controlled power domains where enable functionality is unnecessary. | Choose when system-level power sequencing is handled externally and ±2% accuracy is not required. |
Compared with MCP1700-2902E/TO and XC6206P292MR-G, the MIC5365-2.9YC5-TR uniquely balances low-noise performance (70dB PSRR, 200µVRMS), tight accuracy (±2%), and integrated enable control - making it optimal for portable systems demanding both precision and intelligent power management.
Availability
MIC5365-2.9YC5-TR is available at Aetrix Electronics and suitable for GPS modules, digital camera sensors, handheld PMPs, and industrial scanners requiring stable component supply with consistent parametric performance across temperature and production lots.
Supply support for MIC5365-2.9YC5-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 analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015.
The MIC5365 family was designed specifically for space-constrained, battery-powered portable electronics requiring high PSRR, low IQ, and minimal external components - targeting mobile handsets, GPS, and imaging applications.
FAQ
What is the maximum input voltage for MIC5365-2.9YC5-TR?
The MIC5365-2.9YC5-TR supports an absolute maximum input voltage of 6V, but its specified operating range is 2.5V to 5.5V. Exceeding 5.5V risks violating recommended operating conditions and may trigger internal protection or cause reliability issues. For sustained operation, VIN should remain within 2.5V–5.5V, with headroom above VOUT sufficient to maintain dropout margin - e.g., ≥3.05V for 150mA load.
Does MIC5365-2.9YC5-TR include an auto-discharge feature?
No, MIC5365-2.9YC5-TR does not include auto-discharge. That feature is exclusive to the MIC5366 variant (e.g., MIC5366-2.9YC5*). The MIC5365-2.9YC5-TR lacks the internal NFET discharge path; when disabled via EN, output voltage decays only through external load or leakage, not actively pulled to GND.
Can MIC5365-2.9YC5-TR operate without an output capacitor?
No, MIC5365-2.9YC5-TR requires a minimum 1µF ceramic output capacitor for stability. Unlike some older LDOs, it is not stable under no-load or zero-capacitance conditions. Omitting COUT risks oscillation, poor transient response, or output overvoltage during load steps - per datasheet Section "Output Capacitor" and Figure 7 stability curves.
What is the thermal resistance (θJA) of MIC5365-2.9YC5-TR in SC-70-5 package?
The junction-to-ambient thermal resistance (θJA) for MIC5365-2.9YC5-TR in SC-70-5 package is 256.5°C/W, as specified in the Electrical Characteristics table on page 6 of the datasheet. This value assumes standard JEDEC 2-layer board test conditions; actual θJA improves with PCB copper area and thermal vias beneath the package.
Is MIC5365-2.9YC5-TR RoHS-compliant and lead-free?
Yes, MIC5365-2.9YC5-TR is RoHS-compliant and lead-free. Per the Ordering Information table (page 3), all SC-70-5 variants including MIC5365-2.9YC5 carry "Pb-Free" lead finish, and the device meets EU RoHS Directive 2011/65/EU requirements. The marking code "65O" confirms this configuration.
MIC5365-2.9YC5-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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):
- 2.9V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.31V @ 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:
- SC-70-5
MIC5365-2.9YC5-TR FAQ
1.How can I place an order for MIC5365-2.9YC5-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5365-2.9YC5-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 MIC5365-2.9YC5-TR reliable?
The price and inventory of MIC5365-2.9YC5-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5365-2.9YC5-TR is usually 5 days.
3.What payment methods are accepted for MIC5365-2.9YC5-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5365-2.9YC5-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5365-2.9YC5-TR?
MIC5365-2.9YC5-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5365-2.9YC5-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 MIC5365-2.9YC5-TR?
For technical support, including MIC5365-2.9YC5-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5365-2.9YC5-TR requirements.
6.How does Aetrix verify that MIC5365-2.9YC5-TR is sourced from the original manufacturer or authorized distributors?
All MIC5365-2.9YC5-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 MIC5365-2.9YC5-TR meets industry standards.
7.What is the process for return or replacement of MIC5365-2.9YC5-TR?
All MIC5365-2.9YC5-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5365-2.9YC5-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 MIC5365-2.9YC5-TR part is unused and in its original packaging.
Return procedure for MIC5365-2.9YC5-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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