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Microchip Technology MIC5397-GPYMX-T5
- Part No.:
- MIC5397-GPYMX-T5
- Manufacturer:
- Microchip Technology
- Package:
- 8-XFDFN Exposed Pad
- Datasheet:
-
MIC5397-GPYMX-T5.pdf
- Description:
- IC REG LINEAR 1.8V/3V 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,656
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Product details
Overview
MIC5397-GPYMX-T5 from Microchip Technology is a dual low-dropout linear regulator IC delivering two independent 300 mA outputs with fixed 1.8 V and 3.0 V output voltages, ±2% accuracy, 160 mV dropout at full load, and integrated output discharge circuitry. It operates from 2.5 V to 5.5 V input and is optimized for space-constrained portable electronics requiring clean, sequenced dual-rail power.
For engineers reviewing the MIC5397-GPYMX-T5 datasheet, MIC5397-GPYMX-T5 pinout, MIC5397-GPYMX-T5 application, or MIC5397-GPYMX-T5 equivalent, this page delivers verified electrical specs, package dimensions, thermal behavior, enable/discharge timing, and real-world selection guidance - all confirmed against Microchip's DS20006264C datasheet and packaging documentation.
Technical Context
The MIC5397-GPYMX-T5 integrates two CMOS-based LDOs sharing no internal biasing-each with independent VIN, VOUT, and EN pins-enabling asymmetric input sourcing and independent sequencing. Its output discharge circuit activates automatically upon disable via an internal 25 Ω NFET (confirmed at VIN = 3.6 V), ensuring rapid capacitor discharge without external components.
It features ultra-low quiescent current (37 µA typ. per LDO in active no-load state), stable operation with 1 µF ceramic output capacitors, and robust protection including thermal shutdown and current limiting. The device is rated for –40°C to +125°C junction temperature and is unsuitable for RF transmitter systems per official specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.8 V (LDO1) and 3.0 V (LDO2), fixed and factory-trimmed - eliminates external feedback resistors and ensures precise rail generation for core/logic and I/O supplies. |
| Output Current | 300 mA per channel - supports moderate-power peripherals like sensors, RF front-ends, or display drivers without derating at ambient ≤68°C (per thermal calc). |
| Dropout Voltage | 160 mV at 300 mA - enables high-efficiency regulation from tight input margins (e.g., 3.16 V → 3.0 V), critical for Li-ion battery discharge curves. |
| Accuracy | ±2% over –40°C to +125°C - guarantees voltage compliance across industrial temperature range without calibration. |
| Quiescent Current | 37 µA per LDO (typ.) - minimizes standby power loss in always-on subsystems such as real-time clocks or wake-up controllers. |
| PSRR | 60 dB at 1 kHz - suppresses switching noise from upstream DC/DC converters, preserving analog sensor or audio signal integrity. |
| Enable Threshold | VEN-HIGH ≥ 1.2 V, VEN-LOW ≤ 0.2 V - compatible with standard 1.8 V / 3.3 V GPIO logic without level-shifting. |
Pinout & Package
Package: 8-Lead Extra Thin DFN (X2DFN), 1.6 mm × 1.2 mm × 0.35 mm body height, exposed thermal pad (ePad) - optimized for high-density portable PCB layouts with minimal footprint and thermal resistance (θJA = 172.6°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4 | GND | Common ground reference for both regulators and substrate return - must be connected directly to PCB ground plane via ePad and multiple vias. |
| 2 | VOUT1 | 1.8 V regulated output - requires ≥1 µF ceramic capacitor to GND; supports fast transient response for digital core loads. |
| 3 | VOUT2 | 3.0 V regulated output - independently regulated; same stability requirements as VOUT1 but serves higher-voltage I/O or analog rails. |
| 5 | EN2 | Active-high enable for LDO2 - floating not allowed (no internal pull-down); must be driven or tied high/low - controls power sequencing of 3.0 V rail. |
| 6 | VIN2 | Input supply for LDO2 - accepts 2.5–5.5 V; decoupling capacitor required to minimize PSRR degradation and input ripple coupling. |
| 7 | VIN1 | Input supply for LDO1 - independent of VIN2; allows separate battery or DC/DC sourcing for 1.8 V domain (e.g., SoC core vs. interface). |
| 8 | EN1 | Active-high enable for LDO1 - same drive requirements as EN2; enables independent on/off control and sequencing of 1.8 V rail. |
| EP | ePad | Exposed thermal pad - must be soldered to solid GND copper area; primary path for heat dissipation and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Output Discharge Circuit | Integrated 25 Ω NFET per output activated on disable - discharges external 1 µF capacitor in <1 ms (calculated), eliminating hold-up voltage and enabling safe hot-swap or reset sequencing. |
| Independent Power Inputs | VIN1 and VIN2 are fully isolated - permits use of different sources (e.g., battery + PMIC rail) and avoids single-point failure propagation between domains. |
| Low Dropout Performance | 80 mV typical dropout at 150 mA - extends usable battery life by maintaining regulation deeper into discharge cycle than standard LDOs. |
| Stability with Small Capacitors | Guaranteed stable with 1 µF X5R/X7R ceramic output caps - reduces BOM count and board area versus legacy LDOs requiring ≥10 µF tantalum. |
| Zero-Current Shutdown | 0.05 µA max shutdown current - enables true off-state power gating for subsystems needing nanowatt-level leakage control. |
Applications
| Smartphone Power Management | Portable Medical Sensor Hub |
|---|---|
Use Scenario: Dual-rail power for application processor core (1.8 V) and display interface (3.0 V) in compact smartphone mainboard. IC Role / Device Role / Timing Role: Primary dual-output LDO providing clean, sequenced, and independently controllable voltage rails during boot and sleep transitions. Use Value: Eliminates need for two discrete LDOs and external discharge FETs, reducing component count by ≥3 and PCB area by >30%. |
Use Scenario: Powering low-noise analog front-end (3.0 V) and ultra-low-power microcontroller (1.8 V) in wearable ECG patch. IC Role / Device Role / Timing Role: Precision dual LDO delivering stable, low-ripple supplies with automatic output discharge during sleep mode to meet FDA Class II leakage limits. Use Value: Meets <10 µV RMS noise requirement (via 60 dB PSRR) and ensures <100 µs discharge time - critical for patient safety and signal fidelity. |
| Digital Still Camera (DSC) Module | Industrial Handheld Scanner |
Use Scenario: Supplying image sensor analog bias (3.0 V) and digital logic (1.8 V) in battery-powered DSC module with strict EMI constraints. IC Role / Device Role / Timing Role: Low-noise dual LDO with independent enable control enabling synchronized power-up of sensor and ISP ASIC. Use Value: 93 µVRMS output noise and 50 µs turn-on time ensure clean startup without image artifacts or frame drop. |
Use Scenario: Powering barcode laser driver (3.0 V) and ARM Cortex-M4 MCU (1.8 V) in ruggedized handheld scanner operating at –20°C to +70°C ambient. IC Role / Device Role / Timing Role: Industrial-grade dual LDO with –40°C to +125°C rating and thermal shutdown protecting against sustained overloads in sealed enclosures. Use Value: Maintains ±2% output accuracy across full temperature range - prevents laser current drift and decoder timing errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC5399-GMYMX-T5 | Includes both output discharge *and* internal enable pull-down (4 MΩ) - EN pins default to OFF if left floating. | Suitable where system GPIO may enter tri-state during reset or firmware crash - eliminates need for external pull-down resistors. | Select when robustness against floating EN lines is required; otherwise, MIC5397-GPYMX-T5 offers identical discharge functionality with simpler enable drive. |
| TPL7407LPGFQ1 | Single 300 mA LDO (not dual); 1.8 V fixed; no discharge circuit; automotive AEC-Q100 Grade 2 qualified. | Requires two devices to replicate dual-rail function; lacks auto-discharge; intended for automotive infotainment, not portable consumer. | Only viable if automotive qualification is mandatory and dual-rail can be implemented with discrete layout; otherwise, not functionally equivalent. |
Compared with MIC5399-GMYMX-T5, MIC5397-GPYMX-T5 provides identical output discharge but requires externally driven EN signals - reducing component count where control logic is deterministic. TPL7407LPGFQ1 adds AEC-Q100 compliance but sacrifices integration, discharge capability, and dual-rail efficiency.
Availability
MIC5397-GPYMX-T5 is available at Aetrix Electronics and suitable for smartphones, portable medical devices, digital still cameras, and industrial handheld scanners requiring stable component supply, guaranteed long-term availability, and RoHS-compliant packaging.
Supply support for MIC5397-GPYMX-T5 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 Inc. is a leading provider of microcontrollers, analog devices, and power management ICs, serving industrial, automotive, and consumer markets with vertically integrated silicon and software solutions.
The MIC5396/7/8/9 family was designed specifically for space-constrained, battery-powered portable electronics requiring dual, high-accuracy, low-quiescent-current LDOs with integrated discharge and sequencing control - targeting smartphones, DSCs, GPS, and medical wearables.
FAQ
What output voltages does the MIC5397-GPYMX-T5 provide?
The MIC5397-GPYMX-T5 provides fixed output voltages of 1.8 V on VOUT1 and 3.0 V on VOUT2, as defined by its "GP" voltage option code per Microchip's Product Identification System. These values are factory-trimmed and guaranteed within ±2% over –40°C to +125°C, with no external feedback components required.
Does the MIC5397-GPYMX-T5 include an output discharge feature?
Yes, the MIC5397-GPYMX-T5 includes an integrated output discharge circuit on both VOUT1 and VOUT2. When either EN pin is driven low, an internal 25 Ω NFET connects the respective output to GND, discharging external capacitors rapidly - confirmed in Electrical Characteristics table (RDS(ON) = 25 Ω) and Application Information section.
What package type is used for the MIC5397-GPYMX-T5?
The MIC5397-GPYMX-T5 uses the 8-Lead Extra Thin DFN (X2DFN) package, measuring 1.6 mm × 1.2 mm × 0.35 mm with an exposed thermal pad (ePad). This is explicitly indicated by the "MX" suffix in the part number and detailed in DS20006264C pages 17–19, including land pattern and thermal resistance (θJA = 172.6°C/W).
Can the MIC5397-GPYMX-T5 operate with only 1 µF output capacitors?
Yes, the MIC5397-GPYMX-T5 is specified and characterized for stable operation with ≥1 µF ceramic output capacitors (X5R or X7R dielectric), as stated in the General Description and Section 4.2. Larger capacitance does not improve performance significantly, and Y5V/Z5U types are explicitly discouraged due to excessive capacitance drift over temperature.
What is the maximum ambient temperature for continuous 300 mA operation on both outputs?
Based on thermal calculation in DS20006264C page 10 (Equation 4-4), with VIN = 3.6 V, VOUT1 = 1.8 V, VOUT2 = 3.0 V, and 300 mA per channel, the MIC5397-GPYMX-T5 achieves a maximum ambient temperature of 68.04°C in the X2DFN package - assuming minimum footprint layout and θJA = 172.6°C/W. Derating is required above this limit.
MIC5397-GPYMX-T5 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-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, 3V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.38V @ 300mA, 0.38V @ 300mA
- Current - Output:
- 300mA, 300mA
- Current - Quiescent (Iq):
- 55 µA
- Current - Supply (Max):
- 130 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:
- 8-DFN (1.2x1.6)
MIC5397-GPYMX-T5 FAQ
1.How can I place an order for MIC5397-GPYMX-T5 through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5397-GPYMX-T5 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 MIC5397-GPYMX-T5 reliable?
The price and inventory of MIC5397-GPYMX-T5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5397-GPYMX-T5 is usually 5 days.
3.What payment methods are accepted for MIC5397-GPYMX-T5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5397-GPYMX-T5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5397-GPYMX-T5?
MIC5397-GPYMX-T5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5397-GPYMX-T5 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 MIC5397-GPYMX-T5?
For technical support, including MIC5397-GPYMX-T5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5397-GPYMX-T5 requirements.
6.How does Aetrix verify that MIC5397-GPYMX-T5 is sourced from the original manufacturer or authorized distributors?
All MIC5397-GPYMX-T5 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 MIC5397-GPYMX-T5 meets industry standards.
7.What is the process for return or replacement of MIC5397-GPYMX-T5?
All MIC5397-GPYMX-T5 units undergo pre-shipment inspection (PSI). If there is an issue with MIC5397-GPYMX-T5, 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 MIC5397-GPYMX-T5 part is unused and in its original packaging.
Return procedure for MIC5397-GPYMX-T5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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