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Microchip Technology MIC5331-MMYMT-TR
- Part No.:
- MIC5331-MMYMT-TR
- Manufacturer:
- Microchip Technology
- Package:
- 8-VFDFN Exposed Pad, 8-MLF®
- Datasheet:
-
MIC5331-MMYMT-TR.pdf
- Description:
- IC REG LINEAR 2.8V/2.8V 8MLF
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
MIC5331-MMYMT-TR from Microchip Technology is a dual ultra-low dropout (ULDO) linear regulator IC delivering two independent 2.8 V outputs at up to 300 mA each, operating from 2.3 V to 5.5 V input. It features 25 µA quiescent current per LDO, 120 mV dropout at full load, >65 dB PSRR at 1 kHz, and 50 µVRMS output noise-enabling power-sensitive mobile camera modules and GPS receivers requiring clean, stable dual-rail supplies.
For engineers reviewing the MIC5331-MMYMT-TR datasheet, MIC5331-MMYMT-TR pinout, MIC5331-MMYMT-TR application, or MIC5331-MMYMT-TR equivalent, key selection criteria include fixed 2.8 V/2.8 V dual-output matching, thermal shutdown and current-limit protection, compatibility with 1 µF ceramic capacitors, and operation across –40°C to +125°C junction temperature range.
Technical Context
The MIC5331-MMYMT-TR integrates two independent CMOS-based LDO regulators sharing a common VIN and GND, each with active-high enable (EN1/EN2) for individual power sequencing. Its µCap architecture enables stability with minimal 1 µF ceramic output capacitance, while high bandwidth supports fast transient response despite ultra-low quiescent current.
Each LDO employs internal reference and error amplifier feedback with thermal shutdown and foldback current limiting. The device rejects input ripple via >65 dB PSRR at low frequency and maintains regulation down to 120 mV dropout at 300 mA, making it suitable for battery-powered systems where headroom and noise sensitivity are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 2.8 V / 2.8 V - eliminates external resistor networks; ensures matched rail generation for dual-core processors or image sensor interfaces. |
| Max Output Current | 300 mA per LDO - supports moderate-power analog/RF blocks (e.g., camera DSPs, GPS baseband ICs) without external boost stages. |
| Dropout Voltage | 120 mV @ 300 mA - enables operation from single-cell Li-ion (2.8 V out from ~3.0 V input), preserving battery runtime in portable devices. |
| Quiescent Current | 25 µA per LDO - reduces standby power loss in always-on subsystems such as GPS keep-alive or real-time clock backup rails. |
| PSRR | >65 dB @ 1 kHz - suppresses switching noise from adjacent DC/DC converters, critical for noise-sensitive RF/analog signal chains. |
| Output Noise | 50 µVRMS (10 Hz–100 kHz) - meets low-noise requirements of high-resolution ADCs, PLLs, and RF synthesizers. |
| Operating Temp | –40°C to +125°C junction - qualified for automotive infotainment and industrial handheld environments with extended thermal margins. |
Pinout & Package
Package: 8-pin 2 mm × 2 mm × 0.6 mm Thin DFN (TDFN-8, MT suffix), leadless, RoHS-compliant, moisture-sensitive level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VIN | Supply Input | Common input for both LDOs; requires 1 µF ceramic bypass capacitor to GND for stability and noise filtering. |
| 2 GND | Ground Reference | Power and signal return path; must be low-impedance connection to minimize ground bounce and PSRR degradation. |
| 3 NC | Not Internally Connected | No internal bond; electrically floating-must not be connected to any net to avoid parasitic coupling. |
| 4 EN2 | Enable Input (LDO2) | Active-high logic control; <0.2 V = off (≤1 µA shutdown current), ≥1.2 V = on; must not float. |
| 5 EN1 | Enable Input (LDO1) | Independent active-high enable for LDO1; allows staggered power-up or dynamic rail disabling in multi-voltage systems. |
| 6 NC | Not Internally Connected | No internal bond; electrically floating-must not be connected to any net. |
| 7 VOUT2 | LDO2 Output | Regulated 2.8 V output; stable with ≥1 µF X5R/X7R ceramic capacitor; supports up to 300 mA load. |
| 8 VOUT1 | LDO1 Output | Regulated 2.8 V output; independently controllable via EN1; matches VOUT2 voltage for symmetric dual-rail applications. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enables | EN1 and EN2 allow per-rail power sequencing, enabling flexible wake-up/sleep control in camera or GPS subsystems without external logic. |
| µCap stability | Stable with only 1 µF ceramic output capacitors-reduces PCB area, BOM cost, and improves high-frequency decoupling vs. larger tantalum alternatives. |
| Thermal shutdown + current limit | Internally protects against overtemperature (>125°C) and short-circuit faults (550 mA typical limit), eliminating need for external fault management circuitry. |
| No-load regulation | Maintains regulation with zero load-critical for maintaining backup voltage on CMOS RAM or RTC circuits during deep sleep modes. |
| Low-noise, high-PSRR design | Combines 50 µVRMS noise and >65 dB PSRR to support sensitive analog/RF loads (e.g., GNSS front-ends, audio codecs) without additional filtering. |
Applications
| Camera Phone Module | GPS/GNSS Receiver |
|---|---|
Use Scenario: Dual-rail power for image sensor (2.8 V analog) and ISP/DSP core (2.8 V I/O). IC Role / Device Role / Timing Role: Provides matched, low-noise 2.8 V/2.8 V supplies with independent enable control for power sequencing during capture/startup. Use Value: Eliminates cross-talk between analog and digital domains; enables fast turn-on (<500 µs) and ultra-low standby current for battery longevity. | Use Scenario: Powering GNSS RF front-end and baseband processor in portable navigation devices. IC Role / Device Role / Timing Role: Delivers clean, regulated 2.8 V rails immune to switching noise from PMU or display drivers. Use Value: Maintains >65 dB PSRR at 1 kHz to preserve carrier-to-noise ratio (C/N₀); supports –40°C to +85°C ambient operation. |
| Mobile Handheld PDA | Industrial Portable Data Terminal |
Use Scenario: Supplying memory interface and touch controller in legacy PDA platforms with tight board space. IC Role / Device Role / Timing Role: Replaces discrete LDOs with single 2 mm × 2 mm package delivering dual 2.8 V rails and independent enable. Use Value: Reduces footprint by >50% vs. two SOT-23 LDOs; supports 1 µF ceramic caps to lower component count and cost. | Use Scenario: Powering barcode scanner engine and wireless comms module (BLE/Wi-Fi) in rugged handheld terminals. IC Role / Device Role / Timing Role: Supplies isolated 2.8 V rails with thermal protection for intermittent high-current bursts during scanning or transmission. Use Value: Withstands 125°C junction temperature and delivers 300 mA peak current without derating in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC5332-J4YMT-TR | Fixed 2.5 V / 1.2 V outputs; identical package, pinout, and specs otherwise. | Targets mixed-voltage SoCs requiring asymmetric rails (e.g., core + I/O), not matched 2.8 V rails. | Select when system requires 2.5 V/1.2 V instead of 2.8 V/2.8 V; same layout and enable behavior. |
| Torex XC6216D282MR-G | Single 2.8 V LDO (300 mA), SOT-25 package; no second output or dual enable. | Only suitable for single-rail applications; lacks independent control and space-saving dual integration. | Choose only if one 2.8 V rail suffices and board area permits two separate packages. |
Compared with MIC5331-MMYMT-TR, MIC5332-J4YMT-TR provides asymmetric voltage pairing ideal for core/I/O separation, while XC6216D282MR-G offers single-rail simplicity but doubles footprint and removes sequencing flexibility-making MIC5331-MMYMT-TR optimal for compact dual-2.8 V systems.
Availability
MIC5331-MMYMT-TR is available at Aetrix Electronics and suitable for camera phone modules, GPS receivers, and industrial handheld terminals requiring stable component supply with guaranteed long-term availability and traceable sourcing.
Supply support for MIC5331-MMYMT-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 ISO/TS-16949 certified manufacturing.
The MIC5331 product line delivers micro-power dual LDOs optimized for space-constrained, battery-operated portable electronics where low noise, high PSRR, and minimal quiescent current are essential.
FAQ
What output voltages does the MIC5331-MMYMT-TR provide?
The MIC5331-MMYMT-TR provides two fixed, matched 2.8 V outputs-one on VOUT1 (pin 8) and one on VOUT2 (pin 7). This configuration is laser-trimmed during manufacturing and cannot be adjusted externally. Both outputs maintain ±1.0% accuracy at 25°C and ±2.0% over –40°C to +125°C, supporting tightly regulated dual-rail applications like camera sensor interfaces.
Can the MIC5331-MMYMT-TR operate with ceramic output capacitors smaller than 1 µF?
No-the MIC5331-MMYMT-TR is designed and characterized for stability with ≥1 µF X5R or X7R ceramic output capacitors. Using smaller values may cause oscillation or degraded transient response. The datasheet explicitly states 1 µF as the minimum required value, and performance-including PSRR and noise-is optimized at this capacitance.
Does the MIC5331-MMYMT-TR support independent enable control for each LDO?
Yes-the MIC5331-MMYMT-TR has two dedicated active-high enable inputs: EN1 (pin 5) controls LDO1 (VOUT1), and EN2 (pin 4) controls LDO2 (VOUT2). Each can be driven independently with logic-level signals (≥1.2 V to enable, ≤0.2 V to disable), allowing precise power sequencing, dynamic rail gating, or selective shutdown without affecting the other regulator.
What is the maximum allowable power dissipation for the MIC5331-MMYMT-TR at 85°C ambient?
At 85°C ambient temperature, the MIC5331-MMYMT-TR's maximum allowable power dissipation is calculated as PD(max) = (TJ(max) – TA)/θJA = (125°C – 85°C)/90°C/W ≈ 444 mW. This assumes the 2 mm × 2 mm TDFN package with standard PCB layout; exceeding this limit triggers thermal shutdown. Actual dissipation depends on VIN–VOUT drop and load current per LDO.
Is the MIC5331-MMYMT-TR compatible with lead-free reflow soldering processes?
Yes-the MIC5331-MMYMT-TR uses a Pb-free Matte Tin (Sn) finish and is rated for lead-free reflow with a peak temperature of +260°C for 3 seconds, per JEDEC J-STD-020. The device is shipped in tape-and-reel (TR) format and complies with RoHS Directive 2011/65/EU, making it suitable for modern automated assembly lines.
MIC5331-MMYMT-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-VFDFN Exposed Pad, 8-MLF®
- 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):
- 0.24V @ 300mA, 0.24V @ 300mA
- Current - Output:
- 300mA, 300mA
- Current - Quiescent (Iq):
- 50 µA
- Current - Supply (Max):
- 75 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:
- 8-MLF® (2x2)
MIC5331-MMYMT-TR FAQ
1.How can I place an order for MIC5331-MMYMT-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5331-MMYMT-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 MIC5331-MMYMT-TR reliable?
The price and inventory of MIC5331-MMYMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5331-MMYMT-TR is usually 5 days.
3.What payment methods are accepted for MIC5331-MMYMT-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5331-MMYMT-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5331-MMYMT-TR?
MIC5331-MMYMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5331-MMYMT-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 MIC5331-MMYMT-TR?
For technical support, including MIC5331-MMYMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5331-MMYMT-TR requirements.
6.How does Aetrix verify that MIC5331-MMYMT-TR is sourced from the original manufacturer or authorized distributors?
All MIC5331-MMYMT-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 MIC5331-MMYMT-TR meets industry standards.
7.What is the process for return or replacement of MIC5331-MMYMT-TR?
All MIC5331-MMYMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5331-MMYMT-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 MIC5331-MMYMT-TR part is unused and in its original packaging.
Return procedure for MIC5331-MMYMT-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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