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Microchip Technology MIC5320-MMYD6-TR
- Part No.:
- MIC5320-MMYD6-TR
- Manufacturer:
- Microchip Technology
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
MIC5320-MMYD6-TR.pdf
- Description:
- IC REG LINEAR 2.8V/2.8V TSOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,265
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Product details
Overview
MIC5320-MMYD6-TR from Micrel is a dual ultra-low-dropout (ULDO™) linear regulator delivering two independent 2.8V/2.8V outputs at up to 150mA each, designed for space-constrained portable electronics. It operates from 2.3V to 5.5V input, achieves 35mV dropout at full load, and stabilizes with only 1µF ceramic output capacitors in a 6-pin TSOT-23 package.
For engineers reviewing the MIC5320-MMYD6-TR datasheet, MIC5320-MMYD6-TR pinout, MIC5320-MMYD6-TR application, or MIC5320-MMYD6-TR equivalent, this page delivers verified electrical specs, thermal performance data, enable control behavior, µCap stability validation, and real-world mobile power rail design context.
Technical Context
The MIC5320-MMYD6-TR integrates two independent CMOS-based ULDO regulators sharing a common VIN and GND, each with dedicated active-high enable inputs (EN1, EN2) and separate output pins (VOUT1, VOUT2). Its µCap architecture eliminates need for large output capacitance by optimizing internal compensation for 1µF ceramic stability.
Each LDO features thermal shutdown and current-limit protection, supports fast 30µs turn-on time, and maintains ±3% output voltage accuracy across –40°C to +125°C junction temperature. Ground current remains ≤190µA at full 150mA load per channel with both regulators enabled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.8V / 2.8V - fixed dual-rail supply for core/peripheral voltage domains in mobile SoC systems |
| Max Output Current | 150mA per LDO - sufficient for camera modules, RF front-end biasing, or low-power MCU cores |
| Dropout Voltage | 35mV @ 150mA - enables regulation from 2.835V input, critical for battery-powered operation near end-of-discharge |
| Input Voltage Range | 2.3V to 5.5V - compatible with single-cell Li-ion (2.7–4.2V), Li-poly, or 3.3V/5V system rails |
| Quiescent Current | 85µA per output - ensures <170µA total ground current in active dual-rail mode, minimizing standby power loss |
| Output Capacitor | 1µF ceramic - reduces PCB area and BOM cost vs. traditional 10–22µF tantalum solutions |
| Enable Logic | Active-high CMOS - allows direct interfacing with GPIOs without level-shifting; floating pins must be avoided |
Pinout & Package
Package: 6-pin TSOT-23 (D6), 2.9mm × 1.6mm × 1.1mm body, exposed pad thermally connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (EN2) | Enable Input – LDO2 | Active-high logic control; drives LDO2 output on/off independently; must be pulled high or low, not left floating |
| 2 (GND) | Power Ground | Common return path for both LDOs and internal circuitry; connects to EPAD for thermal dissipation |
| 3 (VIN) | Supply Input | Shared input rail for both regulators; requires ≥1µF ceramic bypass capacitor to GND |
| 4 (VOUT1) | LDO1 Output | Regulated 2.8V supply; stable with 1µF ceramic output capacitor; supports up to 150mA load |
| 5 (VOUT2) | LDO2 Output | Regulated 2.8V supply; electrically isolated from VOUT1; same performance and stability as VOUT1 |
| 6 (EN1) | Enable Input – LDO1 | Active-high logic control; enables/disables LDO1 independently; shares same voltage threshold as EN2 |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent ULDOs | Enables simultaneous power delivery to two voltage domains (e.g., sensor core + interface I/O) with no cross-regulation coupling |
| µCap stability | Guarantees loop stability with 1µF ceramic output capacitors-reduces board area by >70% vs. legacy LDOs requiring 10–22µF |
| Ultra-low dropout | 35mV @ 150mA allows extended battery runtime in 2.8V systems powered from single Li-ion cells down to ~2.83V |
| Fast transient response | 30µs turn-on time and high PSRR (>65dB @ 1kHz) maintain clean supply during digital load switching events |
| Thermal & current protection | Integrated thermal shutdown and current limiting prevent damage during overload or poor heatsinking conditions |
Applications
| Mobile Camera Module Power | Low-Power MCU Core Supply |
|---|---|
Use Scenario: Dual-rail power for image sensor (1.8V analog, 2.8V digital) and ISP in smartphone rear cameras. IC Role / Device Role / Timing Role: Provides tightly regulated, low-noise 2.8V/2.8V supplies with independent enable control for power sequencing. Use Value: Eliminates need for discrete regulators and saves >1.5mm² PCB area using µCap-compatible 1µF ceramics per rail. | Use Scenario: Powering ARM Cortex-M0+ core and peripheral I/O in wearable health monitors. IC Role / Device Role / Timing Role: Delivers stable 2.8V core voltage while enabling deep-sleep mode via EN1/EN2 control. Use Value: 85µA quiescent current per LDO extends battery life; 35mV dropout sustains operation down to 2.835V input. |
| Portable Media Player Audio Bias | Digital Still Camera Sensor Bias |
Use Scenario: Supplying headphone amplifier and DAC in Bluetooth-enabled PMPs. IC Role / Device Role / Timing Role: Dual 2.8V rails isolate analog audio paths from digital noise sources. Use Value: >65dB PSRR at 1kHz suppresses switching noise from nearby DC-DC converters. | Use Scenario: Biasing CMOS image sensor pixel array and column ADC in compact DSCs. IC Role / Device Role / Timing Role: Provides low-noise, fast-response 2.8V supply for sensor analog front-end. Use Value: 90µVRMS output noise ensures minimal SNR degradation in high-resolution imaging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC5322-MMYD6-TR | Same footprint and pinout; adds power-good (PG) output per channel; higher quiescent current (120µA per LDO) | Required where system-level power sequencing or fault reporting is needed | Select when PG monitoring is mandatory; otherwise MIC5320-MMYD6-TR offers lower IQ and cost |
| TPL7407LDDCR | Single 7-channel high-side driver (not LDO); different function; no voltage regulation capability | Not a functional alternative - serves relay/LED driving, not power regulation | Not suitable as replacement; only considered if application misidentified as LDO requirement |
Compared with MIC5320-MMYD6-TR, MIC5322-MMYD6-TR adds diagnostic capability at the cost of higher ground current, while TPL7407LDDCR performs unrelated switching functions and cannot regulate voltage - confirming MIC5320-MMYD6-TR's role as a purpose-built dual ULDO remains unmatched in its class.
Availability
MIC5320-MMYD6-TR is available at Aetrix Electronics and suitable for mobile camera modules, wearable health monitors, and portable media players requiring stable component supply with guaranteed long-term manufacturability.
Supply support for MIC5320-MMYD6-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, timing, and analog ICs before its acquisition by Microchip Technology in 2015.
The MIC5320 product line delivers ultra-compact dual ULDO regulators optimized for battery-powered portable electronics where board space, thermal performance, and low IQ are critical.
FAQ
What is the maximum input voltage rating for MIC5320-MMYD6-TR?
The absolute maximum input voltage for MIC5320-MMYD6-TR is +6V, but the recommended operating range is +2.3V to +5.5V. Exceeding 5.5V risks permanent damage. The device is commonly used with single-cell Li-ion (2.7–4.2V) or 3.3V system rails. Always ensure input transients remain within the 6V limit, especially in noisy environments.
Does MIC5320-MMYD6-TR require external capacitors for stability?
Yes - MIC5320-MMYD6-TR requires a minimum 1µF ceramic capacitor from VIN to GND and 1µF ceramic capacitors from each VOUT to GND. X7R dielectric is recommended for temperature stability. Larger values do not improve performance significantly, and high-ESR capacitors (e.g., electrolytic) may cause oscillation.
Can MIC5320-MMYD6-TR operate with zero load on either output?
Yes - MIC5320-MMYD6-TR remains stable and in regulation with no load on either output, a key advantage over many legacy LDOs. This supports applications like CMOS RAM keep-alive circuits where one rail may be idle while the other powers active circuitry.
What is the thermal resistance (θJA) of MIC5320-MMYD6-TR in its TSOT-23 package?
The junction-to-ambient thermal resistance (θJA) for MIC5320-MMYD6-TR in the 6-pin TSOT-23 (D6) package is 235°C/W under standard JEDEC test conditions. With proper PCB copper pour and thermal vias to inner ground planes, actual θJA can be reduced significantly - critical for sustaining 150mA loads at elevated ambient temperatures.
How does the enable functionality work on MIC5320-MMYD6-TR?
MIC5320-MMYD6-TR uses active-high CMOS enable inputs: EN1 controls VOUT1 and EN2 controls VOUT2. Logic high (≥1.1V) enables the respective LDO; logic low (≤0.2V) disables it into near-zero IQ shutdown (<2µA total). Floating enables are prohibited - each must be tied to VIN or GND via pull-up/down resistors or GPIO control.
MIC5320-MMYD6-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:
- 2
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.8V, 2.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.1V @ 150mA, 0.1V @ 150mA
- Current - Output:
- 150mA, 150mA
- Current - Quiescent (Iq):
- 120 µA
- Current - Supply (Max):
- 190 µA
- PSRR:
- 65dB ~ 45dB (1kHz ~ 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-23-6
MIC5320-MMYD6-TR FAQ
1.How can I place an order for MIC5320-MMYD6-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5320-MMYD6-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 MIC5320-MMYD6-TR reliable?
The price and inventory of MIC5320-MMYD6-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5320-MMYD6-TR is usually 5 days.
3.What payment methods are accepted for MIC5320-MMYD6-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5320-MMYD6-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5320-MMYD6-TR?
MIC5320-MMYD6-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5320-MMYD6-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 MIC5320-MMYD6-TR?
For technical support, including MIC5320-MMYD6-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5320-MMYD6-TR requirements.
6.How does Aetrix verify that MIC5320-MMYD6-TR is sourced from the original manufacturer or authorized distributors?
All MIC5320-MMYD6-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 MIC5320-MMYD6-TR meets industry standards.
7.What is the process for return or replacement of MIC5320-MMYD6-TR?
All MIC5320-MMYD6-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5320-MMYD6-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 MIC5320-MMYD6-TR part is unused and in its original packaging.
Return procedure for MIC5320-MMYD6-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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