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Microchip Technology MIC5393-MMYMX-TR
- Part No.:
- MIC5393-MMYMX-TR
- Manufacturer:
- Microchip Technology
- Package:
- 6-XFDFN Exposed Pad
- Datasheet:
-
MIC5393-MMYMX-TR.pdf
- Description:
- IC REG LINEAR 2.8V/2.8V 6XTDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,055
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Product details
Overview
MIC5393-MMYMX-TR from Micrel is a dual-channel, high-PSRR low-dropout linear regulator delivering two independent 2.8V outputs at up to 150mA each, housed in a 6-pin 1.2mm × 1.2mm Extra Thin DFN package with integrated auto-discharge (25Ω NFET per output), ±2% output accuracy, and 60dB ripple rejection at 1kHz - optimized for camera DSP power supply in mobile phones.
For engineers reviewing the MIC5393-MMYMX-TR datasheet, MIC5393-MMYMX-TR pinout, MIC5393-MMYMX-TR application, or MIC5393-MMYMX-TR equivalent, key selection criteria include dual-output voltage matching, independent enable control, thermal performance in ultra-thin DFN, and auto-discharge functionality for fast output discharge during shutdown.
Technical Context
The MIC5393-MMYMX-TR integrates two fully independent LDO regulators sharing only VIN and GND connections, each with dedicated CMOS-compatible active-high EN1/EN2 pins enabling precise sequencing and power gating. Its µCap architecture ensures stability with 1µF ceramic output capacitors on both channels.
This device belongs to the MIC5393 variant family distinguished by internal 25Ω auto-discharge NFETs activated when EN1 or EN2 is low - a feature absent in MIC5392 - and is specified across –40°C to +125°C junction temperature with 173°C/W θJA in its Extra Thin DFN package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.8V / 2.8V fixed dual output - eliminates external feedback networks and supports matched rail requirements for image sensor interfaces. |
| Max Output Current | 150mA per channel - sufficient to power CMOS image sensor cores and companion DSP logic without derating in compact handheld form factors. |
| Dropout Voltage | 155mV at 150mA - enables operation from 3.0V input while maintaining regulation at 2.8V output, critical for battery-powered systems near end-of-discharge. |
| PSRR | 60dB at 1kHz - suppresses switching noise from PMICs or DC-DC converters upstream, reducing need for additional filtering capacitors. |
| Quiescent Current | 32µA per LDO - minimizes standby power loss in always-on camera modules during sleep mode. |
| Auto-Discharge | 25Ω internal NFET per output - discharges output caps within microseconds upon disable, preventing latch-up or false wake-up in multi-rail systems. |
| Input Voltage Range | 2.5V to 5.5V - compatible with single-cell Li-ion (3.0–4.2V), USB 5V, and regulated intermediate rails. |
Pinout & Package
Package: 6-pin 1.2mm × 1.2mm Extra Thin DFN (MX), 0.4mm max height, exposed ePad for thermal dissipation (must be connected to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VOUT1 | Regulator 1 output | Delivers stable 2.8V to load; requires ≥1µF ceramic capacitor to GND for stability and transient response. |
| 2 - VOUT2 | Regulator 2 output | Delivers second 2.8V rail; independently controllable; shares no internal circuitry with VOUT1 except GND reference. |
| 3 - GND | Power and signal ground | Common return path for both LDOs and ePad; must be low-impedance connection to PCB ground plane. |
| 4 - EN2 | Active-high enable for Regulator 2 | Logic high (>1.2V) enables VOUT2; logic low (<0.2V) disables VOUT2 and activates 25Ω discharge path to GND. |
| 5 - VIN | Input supply | Accepts 2.5–5.5V; requires 1µF ceramic capacitor to GND close to pin for high-frequency decoupling. |
| 6 - EN1 | Active-high enable for Regulator 1 | Independent control of VOUT1; identical electrical behavior to EN2; must not be left floating. |
| ePad | Thermal pad / GND extension | Exposed copper pad beneath die; soldered to PCB GND plane to reduce θJA and sustain full 150mA per channel continuously. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable inputs | EN1 and EN2 allow asynchronous power-up/down sequencing between two 2.8V domains - essential for camera module initialization timing control. |
| Auto-discharge circuit | 25Ω internal NFET per output actively pulls VOUT1/VOUT2 to GND when disabled - prevents residual voltage from interfering with I²C/SPI bus states or sensor reset timing. |
| Stable with 1µF ceramic capacitors | Eliminates need for large tantalum or electrolytic output caps - reduces BOM cost, board area, and improves reliability in shock/vibration environments. |
| ±2% output voltage accuracy | Ensures consistent biasing of analog front-end circuits in image sensors without calibration overhead across temperature and production lots. |
| 173°C/W thermal resistance | Enables full 150mA per channel operation in ambient temperatures up to 89°C with proper PCB copper pour - validated for thin-profile smartphone mainboard layouts. |
Applications
| Smartphone Camera Module Power | Portable Image Sensor Biasing |
|---|---|
Use Scenario: Dual-rail power for CMOS image sensor and companion ISP/DSP in slim smartphone bezel designs. IC Role / Device Role / Timing Role: Provides matched 2.8V supplies with independent enable control for staggered sensor initialization and fast power-down. Use Value: Auto-discharge clears VOUT rails within 10µs of disable, preventing ghost exposure or I²C bus contention during rapid mode switching. |
Use Scenario: Biasing analog pixel array and digital core of industrial barcode scanner image sensor. IC Role / Device Role / Timing Role: Delivers low-noise, tightly regulated 2.8V rails with 60dB PSRR to reject noise from nearby motor drivers or RF sections. Use Value: 155mV dropout allows operation from 3.0V battery input down to 20% remaining charge while maintaining regulation. |
| Tablet PC Front-Facing Camera | Handheld Medical Imaging Device |
Use Scenario: Compact dual-LDO solution for front-facing camera in 8-inch tablet with constrained PCB real estate. IC Role / Device Role / Timing Role: Integrates two 150mA LDOs in 1.44mm² footprint - replaces discrete dual-SOT23 solution and saves >2.5mm² board area. Use Value: Ultra-thin 0.4mm profile avoids interference with flex cable routing and rear camera lens stack height constraints. |
Use Scenario: Powering CCD/CMOS sensor and ADC interface in portable ultrasound probe requiring low EMI and fast rail discharge. IC Role / Device Role / Timing Role: Supplies clean 2.8V to analog front-end while enabling deterministic power cycling via EN1/EN2 for patient safety interlocks. Use Value: ±2% accuracy ensures consistent ADC reference scaling across operating temperature, eliminating recalibration in field-deployed units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS70248PWP | 2.5V/3.3V fixed dual output; no auto-discharge; 200mA per channel; larger HTSSOP-20 package. | Requires PCB redesign for larger footprint and lacks fast rail discharge - unsuitable for camera modules needing sub-10µs discharge. | Select only if dual-voltage mismatch is acceptable and board space permits larger package. |
| MCP1826S-2802802D/DB | 2.8V/2.8V dual output; no auto-discharge; 300mA per channel; SOT-23-6 package; higher quiescent current (90µA). | Lacks integrated discharge path - external MOSFET circuit needed for fast discharge, increasing BOM count and layout complexity. | Prefer when higher current headroom is required and auto-discharge can be implemented externally. |
Compared with TPS70248PWP and MCP1826S-2802802D/DB, the MIC5393-MMYMX-TR uniquely combines matched 2.8V outputs, auto-discharge, ultra-small footprint, and ultra-low IQ - making it the only drop-in solution for space-constrained, fast-cycling camera power applications.
Availability
MIC5393-MMYMX-TR is available at Aetrix Electronics and suitable for smartphone camera modules, portable image sensors, tablet front-facing cameras, and handheld medical imaging devices requiring stable component supply with guaranteed long-term sourcing.
Supply support for MIC5393-MMYMX-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 (now part of Microchip Technology) was a leading global designer of high-performance analog, power, and timing ICs, with expertise in low-dropout regulators, Ethernet PHYs, and clock solutions.
The MIC5393-MMYMX-TR belongs to Micrel's µCap dual-LDO product line engineered specifically for portable electronics requiring ultra-small size, fast transient response, and intelligent power control - especially camera and sensor subsystems.
FAQ
What output voltages does the MIC5393-MMYMX-TR provide?
The MIC5393-MMYMX-TR provides two fixed 2.8V outputs - one on VOUT1 and one on VOUT2 - with ±2% initial accuracy over temperature and load. This dual 2.8V configuration is factory-trimmed and requires no external resistors, making it ideal for matched-rail applications like CMOS image sensor biasing where voltage tracking is critical.
Does the MIC5393-MMYMX-TR include auto-discharge functionality?
Yes, the MIC5393-MMYMX-TR includes an internal 25Ω NFET auto-discharge circuit on both VOUT1 and VOUT2, activated automatically when EN1 or EN2 is driven low. This feature rapidly discharges external output capacitors - typically within microseconds - preventing residual voltage from causing bus contention or false wake-up events in camera modules and sensor interfaces.
What is the minimum input voltage required for the MIC5393-MMYMX-TR to maintain regulation at 2.8V output?
The MIC5393-MMYMX-TR maintains regulation at 2.8V output with a minimum input voltage of 2.955V, based on its 155mV dropout voltage at 150mA load. At lighter loads, dropout drops further (e.g., 50mV at 50mA), allowing operation from as low as 2.85V input - enabling extended runtime from single-cell Li-ion batteries nearing end-of-discharge.
Can the MIC5393-MMYMX-TR operate without load on either output?
Yes, the MIC5393-MMYMX-TR remains stable and in regulation with zero load on either or both outputs - a key advantage over many competing LDOs. This no-load stability is achieved through its µCap architecture and internal compensation, supporting applications like CMOS RAM retention or always-on sensor biasing where one rail may be idle while the other is active.
What package type and thermal characteristics apply to the MIC5393-MMYMX-TR?
The MIC5393-MMYMX-TR uses a 6-pin 1.2mm × 1.2mm Extra Thin DFN (MX) package with 0.4mm maximum height and an exposed thermal pad. Its junction-to-ambient thermal resistance (θJA) is 173°C/W, verified for standard PCB layouts with GND-connected ePad - enabling continuous 150mA per channel operation up to 89°C ambient temperature under typical conditions.
MIC5393-MMYMX-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 6-XFDFN Exposed Pad
- 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):
- 0.31V @ 150mA, 0.31V @ 150mA
- Current - Output:
- 150mA, 150mA
- Current - Quiescent (Iq):
- 45 µA
- Current - Supply (Max):
- 85 µA
- PSRR:
- 60dB (1kHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-XTDFN (1.2x1.2)
MIC5393-MMYMX-TR FAQ
1.How can I place an order for MIC5393-MMYMX-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5393-MMYMX-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 MIC5393-MMYMX-TR reliable?
The price and inventory of MIC5393-MMYMX-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5393-MMYMX-TR is usually 5 days.
3.What payment methods are accepted for MIC5393-MMYMX-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5393-MMYMX-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5393-MMYMX-TR?
MIC5393-MMYMX-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5393-MMYMX-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 MIC5393-MMYMX-TR?
For technical support, including MIC5393-MMYMX-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5393-MMYMX-TR requirements.
6.How does Aetrix verify that MIC5393-MMYMX-TR is sourced from the original manufacturer or authorized distributors?
All MIC5393-MMYMX-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 MIC5393-MMYMX-TR meets industry standards.
7.What is the process for return or replacement of MIC5393-MMYMX-TR?
All MIC5393-MMYMX-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5393-MMYMX-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 MIC5393-MMYMX-TR part is unused and in its original packaging.
Return procedure for MIC5393-MMYMX-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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