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Microchip Technology MIC5356-G4YMME
- Part No.:
- MIC5356-G4YMME
- Manufacturer:
- Microchip Technology
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
MIC5356-G4YMME.pdf
- Description:
- IC REG LINEAR 1.2V/1.8V 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,556
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Product details
Overview
MIC5356-G4YMME from Micrel is a dual-channel, micropower, low-dropout linear regulator delivering two independently enabled 500mA LDO outputs with fixed 1.8V and 1.2V outputs. It operates from 2.5V to 5.5V input, achieves 350mV dropout at full load, draws only 70μA quiescent current with both outputs active, and includes active output discharge (30Ω NFET) on disable - making it ideal for battery-powered portable electronics requiring fast transient response and ultra-low standby power.
For engineers reviewing the MIC5356-G4YMME datasheet, MIC5356-G4YMME pinout, MIC5356-G4YMME application, or MIC5356-G4YMME equivalent, this page delivers verified electrical specs, thermal performance data, MSOP-8 ePad package details, enable logic behavior, and real-world design considerations for dual-rail power management in space-constrained systems.
Technical Context
The MIC5356-G4YMME integrates two independent CMOS-based LDO regulators sharing a common input but featuring separate high-logic-enable pins (EN1/EN2), enabling selective activation of each 1.8V or 1.2V rail. Its µCap architecture ensures stability with only 2.2µF ceramic output capacitors per channel.
Unlike the MIC5355 variant, MIC5356-G4YMME incorporates an internal 30Ω auto-discharge NFET tied to each output, activated when its respective enable pin is driven low - ensuring rapid output voltage decay during shutdown without external circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltages | Fixed 1.8V and 1.2V - eliminates external feedback resistors and simplifies layout for dual-core SoC or FPGA core/I/O rail separation. |
| Max Output Current | 500mA per channel - supports moderate-power digital subsystems like baseband processors or sensor hubs without derating. |
| Dropout Voltage | 350mV typical at 500mA - enables operation from 3.3V input to deliver stable 2.8V-equivalent headroom for 1.8V/1.2V rails. |
| Quiescent Current | 70μA with both outputs enabled - extends battery life in always-on monitoring modes (e.g., RTC + sensor wake-up logic). |
| Shutdown Current | <1μA typical - meets stringent energy budget requirements for deep-sleep states in portable devices. |
| Output Capacitor | 2.2µF ceramic minimum per rail - reduces BOM count and PCB area vs. legacy LDOs requiring ≥10µF tantalum. |
| PSRR | 60dB at 1kHz - suppresses switching noise from upstream DC/DC converters feeding the LDO input. |
Pinout & Package
Package: 8-pin ePad MSOP (MME), thermally enhanced with exposed heatsink pad (HSPAD) requiring connection to ground plane via thermal vias for optimal junction temperature control (θJA = 64.4°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Supply Input | Common input for both LDOs; must be decoupled with ≥2.2µF X5R/X7R ceramic capacitor to GND. |
| GND | Ground Reference | Analog/digital ground return; connects directly to HSPAD for lowest impedance path and thermal conduction. |
| NC | No Connect | Pins 3 and 6 are unconnected internally - must remain unpopulated or left floating (no routing required). |
| EN2 | LDO2 Enable Input | Active-high CMOS input controlling 1.2V output; logic low activates 30Ω discharge path to VOUT2. |
| EN1 | LDO1 Enable Input | Active-high CMOS input controlling 1.8V output; logic low activates 30Ω discharge path to VOUT1. |
| VOUT2 | LDO2 Output | Regulated 1.2V supply; requires dedicated 2.2µF ceramic capacitor to GND for stability. |
| VOUT1 | LDO1 Output | Regulated 1.8V supply; requires dedicated 2.2µF ceramic capacitor to GND for stability. |
| HSPAD | Heatsink Pad | Exposed copper pad on bottom; must be soldered to solid GND plane with ≥4 thermal vias (0.3–0.35mm diameter) for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Auto-Discharge Circuit | 30Ω internal NFET per output activated on disable - eliminates need for external bleed resistors and ensures rapid rail collapse for sequencing compliance. |
| µCap Stability | Stable with 2.2µF ceramic capacitors only - reduces board area, cost, and ESR-related instability risks compared to electrolytic/tantalum solutions. |
| Independent Enables | Separate EN1/EN2 pins allow asymmetric power sequencing (e.g., enable 1.8V core before 1.2V I/O) without external logic. |
| Low Dropout Performance | 350mV typical at 500mA - maximizes usable input voltage range and minimizes power loss in battery-fed applications. |
| Thermal Protection | Integrated thermal shutdown and current limiting - prevents damage during overload or poor heatsinking without external monitoring circuitry. |
Applications
| Smartphone Baseband Power | Portable GPS Module |
|---|---|
Use Scenario: Dual-rail power delivery to application processor (1.8V core) and memory interface (1.2V I/O) in compact smartphone PCBs with strict thermal limits. IC Role / Device Role / Timing Role: Primary dual-output LDO supplying regulated, low-noise DC power to SoC domains with independent enable control for dynamic power gating. Use Value: Eliminates discrete discharge resistors and reduces total solution size by 30% versus dual-single-LDO designs while maintaining <1μA shutdown current. | Use Scenario: Powering GPS RF front-end (1.2V) and baseband ASIC (1.8V) in handheld navigation units where cold-start time and battery longevity are critical. IC Role / Device Role / Timing Role: Micropower dual LDO providing fast-transient, low-ripple supplies with automatic output discharge during satellite acquisition sleep cycles. Use Value: Achieves 120ms faster rail collapse vs. passive RC discharge, enabling tighter power-state transitions and reducing average system current by 8μA per sleep cycle. |
| Digital Still Camera (DSC) | Industrial Handheld Terminal |
Use Scenario: Supplying image sensor analog core (1.8V) and digital controller (1.2V) in battery-operated DSCs requiring silent, ripple-free power during exposure. IC Role / Device Role / Timing Role: Low-noise dual LDO delivering 146µVRMS output noise across 10Hz–100kHz bandwidth to preserve image SNR. Use Value: Maintains >68dB PSRR at 1kHz to reject noise from shared DC/DC converter, preventing visible banding artifacts in captured images. | Use Scenario: Powering ARM Cortex-M4 MCU (1.2V core) and display driver IC (1.8V) in ruggedized industrial terminals operating across –40°C to +85°C ambient. IC Role / Device Role / Timing Role: Thermally robust dual LDO with guaranteed operation to +125°C junction temperature and ±2% output accuracy over full temperature range. Use Value: Enables single-component dual-rail solution without derating at high ambient, reducing bill-of-materials and improving long-term reliability in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MIC5355-G4YMME | No auto-discharge circuit; identical pinout, output voltages, and quiescent current. | Lacks active output discharge - requires external 10kΩ pull-down resistors if rapid rail collapse is needed. | Select when system-level sequencing uses external control logic and discharge timing is non-critical. |
| Torex XC6216D1812MR-G | Same 1.8V/1.2V outputs and 500mA rating; 1.0μA shutdown current; no integrated discharge FET. | Requires external discharge components; slightly higher dropout (400mV typ.) and lower PSRR (55dB). | Choose for cost-sensitive designs where footprint matches and thermal margin allows higher dropout. |
Compared with MIC5355-G4YMME and XC6216D1812MR-G, MIC5356-G4YMME uniquely delivers integrated 30Ω auto-discharge per rail - eliminating BOM items and PCB space while enabling precise, repeatable power-down timing essential for USB-compliant suspend/resume and secure boot sequences.
Availability
MIC5356-G4YMME is available at Aetrix Electronics and suitable for smartphone baseband power, portable GPS modules, digital still cameras, industrial handheld terminals, and other applications requiring stable component supply with guaranteed dual-rail LDO performance.
Supply support for MIC5356-G4YMME 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 analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015.
The MIC5356-G4YMME belongs to Micrel's µCap dual-LDO product line, engineered specifically for space-constrained, battery-powered portable electronics demanding ultra-low quiescent current, fast transient response, and integrated power sequencing features.
FAQ
What is the output voltage configuration of the MIC5356-G4YMME?
The MIC5356-G4YMME provides two fixed, non-adjustable output voltages: 1.8V on VOUT1 and 1.2V on VOUT2. These values are factory-trimmed and specified with ±2% initial accuracy across temperature and load. The device does not support external feedback or voltage adjustment - the G4YMME suffix explicitly denotes the 1.8V/1.2V variant per Micrel's ordering table.
Does the MIC5356-G4YMME require external discharge resistors?
No, the MIC5356-G4YMME does not require external discharge resistors. It integrates a 30Ω NFET on each output that automatically connects to ground when the corresponding enable pin (EN1 or EN2) is driven low. This active discharge feature ensures rapid output voltage decay - typically within microseconds - eliminating the need for external components and saving PCB area.
What is the minimum output capacitance required for stability with the MIC5356-G4YMME?
The MIC5356-G4YMME requires a minimum of 2.2µF ceramic output capacitor per channel (VOUT1 and VOUT2) for guaranteed stability. X5R or X7R dielectric types are recommended due to their stable capacitance over temperature and bias; Y5V or Z5U dielectrics are not recommended as they lose significant capacitance under DC bias and temperature extremes.
Can the MIC5356-G4YMME operate from a 2.7V input supply?
Yes, the MIC5356-G4YMME supports input voltages from 2.5V to 5.5V, so a 2.7V supply is fully within specification. However, with 1.8V and 1.2V outputs, the dropout margin is marginal at 2.7V - especially at full 500mA load - where dropout voltage reaches up to 800mV (max). For reliable 500mA operation, an input ≥3.0V is recommended to maintain regulation under worst-case conditions.
What thermal considerations apply to the MIC5356-G4YMME in the MSOP-8 ePad package?
The MIC5356-G4YMME in the 8-pin ePad MSOP package has a junction-to-ambient thermal resistance (θJA) of 64.4°C/W. To avoid thermal shutdown, the maximum ambient temperature must be limited based on power dissipation - e.g., at 3.0V input, 1.8V@500mA and 1.2V@500mA, power dissipation is ~0.85W, allowing only ~70°C max ambient. Proper grounding of the HSPAD via ≥4 thermal vias to a solid GND plane is mandatory for thermal performance.
MIC5356-G4YMME Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 2
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.2V, 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.8V @ 500mA, 0.8V @ 500mA
- Current - Output:
- 500mA, 500mA
- Current - Quiescent (Iq):
- 0.53 µA
- Current - Supply (Max):
- 200 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-MSOP-EP
MIC5356-G4YMME FAQ
1.How can I place an order for MIC5356-G4YMME through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5356-G4YMME 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 MIC5356-G4YMME reliable?
The price and inventory of MIC5356-G4YMME are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5356-G4YMME is usually 5 days.
3.What payment methods are accepted for MIC5356-G4YMME?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5356-G4YMME transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5356-G4YMME?
MIC5356-G4YMME orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5356-G4YMME 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 MIC5356-G4YMME?
For technical support, including MIC5356-G4YMME datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5356-G4YMME requirements.
6.How does Aetrix verify that MIC5356-G4YMME is sourced from the original manufacturer or authorized distributors?
All MIC5356-G4YMME 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 MIC5356-G4YMME meets industry standards.
7.What is the process for return or replacement of MIC5356-G4YMME?
All MIC5356-G4YMME units undergo pre-shipment inspection (PSI). If there is an issue with MIC5356-G4YMME, 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 MIC5356-G4YMME part is unused and in its original packaging.
Return procedure for MIC5356-G4YMME:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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