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Microchip Technology MIC5393-GMYMX-TR
- Part No.:
- MIC5393-GMYMX-TR
- Manufacturer:
- Microchip Technology
- Package:
- 6-XFDFN Exposed Pad
- Datasheet:
-
MIC5393-GMYMX-TR.pdf
- Description:
- IC REG LINEAR 1.8V/2.8V 6XTDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,346
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Product details
Overview
MIC5393-GMYMX-TR from Micrel is a dual-channel, high-PSRR low-dropout linear regulator delivering 150mA per channel with fixed 1.8V and 2.8V outputs in a 6-pin 1.2mm × 1.2mm Extra Thin DFN package. It features independent CMOS enable pins, 25Ω internal auto-discharge on both outputs, ±2% output accuracy, and stable operation with only 1µF ceramic capacitors-designed for camera DSP power supply circuits in mobile phones.
For engineers reviewing the MIC5393-GMYMX-TR datasheet, MIC5393-GMYMX-TR pinout, MIC5393-GMYMX-TR application, or MIC5393-GMYMX-TR equivalent, key selection criteria include dual-output voltage pairing, auto-discharge functionality, thermal performance in ultra-thin packages, and PSRR >60dB at 1kHz for noise-sensitive analog/RF subsystems.
Technical Context
The MIC5393-GMYMX-TR integrates two independent LDO regulators sharing a common input (VIN) and ground (GND), each with dedicated enable (EN1/EN2) and output (VOUT1/VOUT2) terminals. Its µCap architecture enables stability with minimal 1µF ceramic output capacitance, while the internal 25Ω NFET discharge circuit activates automatically when either EN pin is driven low.
This device operates across 2.5V–5.5V input range with dropout voltage of 155mV at 150mA load per channel and delivers 60dB power supply ripple rejection at 1kHz-critical for powering image sensors and audio codecs where supply noise directly impacts signal integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltages | 1.8V (VOUT1) and 2.8V (VOUT2), fixed and non-adjustable-enables direct power to dual-rail camera modules without external feedback networks. |
| Max output current | 150mA per channel-supports moderate-power image sensor interfaces and baseband ICs without thermal derating in compact layouts. |
| Dropout voltage | 155mV at 150mA-allows operation from 3.0V input to sustain 2.8V rail, maximizing battery runtime in single-cell Li-ion systems. |
| PSRR | 60dB at 1kHz-rejects switching noise from PMICs or DC-DC converters upstream, eliminating need for additional LC filtering. |
| Quiescent current | 32µA per LDO-minimizes standby power loss during partial system sleep modes in portable devices. |
| Auto-discharge resistance | 25Ω typical per output-ensures rapid VOUT discharge (<1ms for 1µF) upon disable, preventing latch-up or false wake events in multi-rail sequencing. |
| Thermal resistance θJA | 173°C/W-dictates maximum ambient temperature of ~89°C at full 150mA load per channel with standard PCB copper area. |
Pinout & Package
Package: 6-pin 1.2mm × 1.2mm Extra Thin DFN (MX), 0.4mm height, RoHS-compliant NiPdAu lead finish, exposed ePad for thermal conduction to PCB ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT1 | Regulator 1 output | Delivers regulated 1.8V; requires ≥1µF ceramic capacitor to GND for stability and transient response. |
| VOUT2 | Regulator 2 output | Delivers regulated 2.8V; shares same stability requirements as VOUT1 and supports independent load switching. |
| GND | Analog/digital ground reference | Common return path for both LDOs; must be connected to low-impedance PCB ground plane and tied to ePad. |
| EN2 | Active-high enable for VOUT2 | Logic high (>1.2V) enables 2.8V output; logic low (<0.2V) disables output and activates 25Ω discharge path. |
| VIN | Input supply rail | Accepts 2.5V–5.5V; requires ≥1µF low-ESR ceramic capacitor to GND near pin for high-frequency decoupling. |
| EN1 | Active-high enable for VOUT1 | Logic high (>1.2V) enables 1.8V output; logic low (<0.2V) disables output and activates its own 25Ω discharge path. |
| ePad | Thermal pad / GND extension | Must be soldered to solid PCB ground copper area to achieve rated θJA = 173°C/W and prevent thermal shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable control | EN1 and EN2 allow asynchronous power-up/down sequencing of 1.8V and 2.8V rails-essential for camera module initialization and power-state transitions. |
| Auto-discharge circuitry | 25Ω internal NFET per output discharges external capacitors when disabled-eliminates need for external bleed resistors and reduces BOM count. |
| Ultra-small footprint | 1.44mm² area (1.2mm × 1.2mm) and 0.4mm height-enables placement in tight spaces behind camera modules or near RF front-ends. |
| High-accuracy regulation | ±2% initial output tolerance over line/load/temperature-ensures reliable operation of precision analog blocks like ADCs and PLLs without calibration. |
| Low-noise operation | 100µVRMS output noise (10Hz–100kHz)-preserves SNR in audio codec and image sensor analog signal chains. |
Applications
| Smartphone Camera Module Power | Portable Audio Codec Supply |
|---|---|
Use Scenario: Powering dual-rail CMOS image sensor and companion DSP in flagship smartphones with strict board space constraints. IC Role / Device Role / Timing Role: Dual-output LDO providing clean, sequenced 1.8V (sensor core) and 2.8V (I/O interface) rails with independent enable control. Use Value: Eliminates need for discrete discharge resistors and external filtering, reducing solution size by >30% versus discrete LDO + resistor designs. | Use Scenario: Supplying low-noise bias to stereo audio codec ICs in Bluetooth headsets and portable speakers. IC Role / Device Role / Timing Role: Low-ripple, low-noise dual LDO delivering 1.8V (digital core) and 2.8V (analog AVDD) with simultaneous or staggered activation. Use Value: 60dB PSRR suppresses switching noise from shared system PMIC, maintaining THD+N < -95dB without added ferrite beads. |
| Tablet PC Image Sensor Interface | GPS/PDA Baseband Power |
Use Scenario: Powering high-resolution rolling-shutter sensors in 7-inch tablets where thermal dissipation is limited by thin form factor. IC Role / Device Role / Timing Role: Compact dual LDO with 173°C/W θJA and auto-discharge, enabling thermal-safe 150mA operation under sustained video capture. Use Value: Extra Thin DFN package (0.4mm height) fits beneath display stackup, avoiding mechanical interference with touch panel layers. | Use Scenario: Providing regulated power to GPS receiver baseband processors and PDA application processors requiring fast rail shutdown. IC Role / Device Role / Timing Role: Dual LDO with independent EN pins and 25Ω discharge supporting precise power sequencing and rapid state transitions. Use Value: Sub-1ms VOUT discharge prevents residual voltage from interfering with reset timing or causing I²C bus lockup during mode changes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS7171828DRVR | Single-channel, 200mA, 1.8V/2.8V dual-output not available; requires two separate devices. | No integrated auto-discharge; external circuitry needed for rapid VOUT decay. | Select when higher per-rail current (200mA) is required and board area allows dual IC placement. |
| AP7361-1828SG-13 | Fixed 1.8V/2.8V dual LDO but no auto-discharge; 200mA per channel; larger 2mm × 2mm DFN package. | Higher quiescent current (50µA vs. 32µA); no 25Ω discharge path-slower turn-off. | Choose when thermal margin is less constrained and cost sensitivity outweighs footprint/sequencing needs. |
Compared with TPS7171828DRVR and AP7361-1828SG-13, the MIC5393-GMYMX-TR uniquely combines matched dual outputs, integrated auto-discharge, and sub-1.5mm² footprint-making it optimal for space-constrained, fast-sequencing camera and audio subsystems where board real estate and turn-off speed are critical.
Availability
MIC5393-GMYMX-TR is available at Aetrix Electronics and suitable for smartphone camera modules, portable audio codecs, tablet image sensor interfaces, and GPS/PDA baseband power applications requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for MIC5393-GMYMX-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 supplier of high-performance analog, power, and timing ICs, specializing in low-dropout regulators, Ethernet PHYs, and clock management solutions for communications and portable electronics.
The MIC5392/3 family was designed specifically for dual-rail, space-constrained portable applications-emphasizing ultra-small packaging, high PSRR, and integrated power sequencing features like independent enables and auto-discharge.
FAQ
What output voltages does the MIC5393-GMYMX-TR provide?
The MIC5393-GMYMX-TR provides fixed 1.8V on VOUT1 and 2.8V on VOUT2. These values are laser-trimmed during manufacturing and cannot be adjusted externally. The ±2% initial accuracy ensures reliable operation for camera sensor cores and I/O interfaces without post-production calibration.
Does the MIC5393-GMYMX-TR include auto-discharge functionality?
Yes, the MIC5393-GMYMX-TR includes an internal 25Ω NFET auto-discharge circuit on both VOUT1 and VOUT2. This feature activates automatically when EN1 or EN2 is driven low, discharging external output capacitors rapidly-eliminating the need for external bleed resistors and improving system-level power sequencing reliability.
What is the minimum output capacitance required for stability with the MIC5393-GMYMX-TR?
The MIC5393-GMYMX-TR requires a minimum of 1µF ceramic output capacitor per channel for guaranteed stability. X5R or X7R dielectric types are recommended due to their stable capacitance over temperature; Y5V dielectrics are not advised as they lose significant capacitance across the operating range.
Can the MIC5393-GMYMX-TR operate from a 3.0V input supply?
Yes, the MIC5393-GMYMX-TR supports input voltages from 2.5V to 5.5V. With a 3.0V input, it can sustain the 2.8V output at up to 150mA load (drop-out = 155mV), making it suitable for single-cell Li-ion or Li-polymer battery systems where input voltage drops during discharge.
What package type and dimensions does the MIC5393-GMYMX-TR use?
The MIC5393-GMYMX-TR uses a 6-pin 1.2mm × 1.2mm Extra Thin DFN (MX) package with 0.4mm maximum height and exposed thermal pad (ePad). This RoHS-compliant, halogen-free package has NiPdAu lead finish and requires connection of the ePad to PCB ground for thermal performance.
MIC5393-GMYMX-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):
- 1.8V, 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-GMYMX-TR FAQ
1.How can I place an order for MIC5393-GMYMX-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5393-GMYMX-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-GMYMX-TR reliable?
The price and inventory of MIC5393-GMYMX-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-GMYMX-TR is usually 5 days.
3.What payment methods are accepted for MIC5393-GMYMX-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5393-GMYMX-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5393-GMYMX-TR?
MIC5393-GMYMX-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5393-GMYMX-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-GMYMX-TR?
For technical support, including MIC5393-GMYMX-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5393-GMYMX-TR requirements.
6.How does Aetrix verify that MIC5393-GMYMX-TR is sourced from the original manufacturer or authorized distributors?
All MIC5393-GMYMX-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-GMYMX-TR meets industry standards.
7.What is the process for return or replacement of MIC5393-GMYMX-TR?
All MIC5393-GMYMX-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5393-GMYMX-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-GMYMX-TR part is unused and in its original packaging.
Return procedure for MIC5393-GMYMX-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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