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Microchip Technology MIC5356-G4YMME-TR
- Part No.:
- MIC5356-G4YMME-TR
- Manufacturer:
- Microchip Technology
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
MIC5356-G4YMME-TR.pdf
- Description:
- IC REG LINEAR 1.2V/1.8V 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,348
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Product details
Overview
MIC5356-G4YMME-TR from Micrel is a dual-channel, micropower, low-dropout linear regulator delivering two independent 500mA outputs at fixed 1.8V and 1.2V. It operates from 2.5V to 5.5V input, achieves 2% output accuracy, maintains stability with only 2.2µF ceramic capacitors, and features active discharge (30Ω) on both outputs when disabled-ideal for portable electronics requiring fast power sequencing and low quiescent current.
For engineers reviewing the MIC5356-G4YMME-TR datasheet, MIC5356-G4YMME-TR pinout, MIC5356-G4YMME-TR application, or MIC5356-G4YMME-TR equivalent, key selection criteria include dual-output LDO independence, µCap compatibility, shutdown current <1µA, thermal performance in 8-pin ePad MSOP, and auto-discharge functionality unique to MIC5356 variants.
Technical Context
The MIC5356-G4YMME-TR integrates two fully independent LDO regulators with separate active-high enable inputs (EN1/EN2), enabling precise per-rail power control. Each channel delivers up to 500mA with typical dropout of 350mV at full load and supports fast transient response due to high bandwidth and low-ESR capacitor optimization.
Unlike the MIC5355 family, the MIC5356-G4YMME-TR includes an internal NFET discharge circuit (30Ω) activated upon disable, ensuring rapid output voltage decay. It incorporates current limiting (525–1050mA) and thermal shutdown protection, and operates across –40°C to +125°C junction temperature with θJA = 64.4°C/W in its 8-pin ePad MSOP package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltages | Fixed 1.8V and 1.2V - eliminates external feedback network, reduces BOM count and layout area. |
| Max output current | 500mA per channel - supports moderate-power digital ICs (e.g., baseband processors, memory I/O rails). |
| Quiescent current | 70µA (both outputs enabled) - extends battery life in always-on subsystems like real-time clocks or sensor hubs. |
| Dropout voltage | 350mV typical at 500mA - enables operation from single-cell Li-ion (3.0V min) while maintaining regulation on both rails. |
| Output capacitor | 2.2µF ceramic minimum - allows compact, low-cost, high-reliability decoupling without tantalum or electrolytic parts. |
| Auto-discharge resistance | 30Ω per output - ensures sub-1ms VOUT decay after disable, critical for safe power-down sequencing in multi-rail systems. |
| Enable logic | Active-high CMOS inputs (EN1/EN2) - compatible with standard GPIOs; floating not allowed; VIH ≥1.2V, VIL ≤0.2V. |
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 thermal performance (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 ceramic capacitor to GND. |
| GND | Ground reference | Primary signal and power return; connects to HSPAD for thermal conduction and noise reduction. |
| NC | No connect | Pins 3 and 6 are unconnected internally; must remain unpopulated or left floating (no routing). |
| EN2 | LDO2 enable input | Active-high control for 1.2V output; drives output to 0V via 30Ω discharge path when low. |
| EN1 | LDO1 enable input | Active-high control for 1.8V output; independent of EN2, enabling staggered power-up/down. |
| VOUT2 | LDO2 output | Regulated 1.2V supply; requires ≥2.2µF ceramic capacitor to GND for stability. |
| VOUT1 | LDO1 output | Regulated 1.8V supply; decoupled separately to minimize cross-rail coupling. |
| HSPAD | Heatsink pad | Exposed copper pad on bottom; must be soldered to solid GND plane with ≥4 thermal vias (0.3–0.35mm Ø) for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable control | EN1 and EN2 allow asynchronous power sequencing-e.g., enable 1.8V rail before 1.2V for core/peripheral startup order. |
| µCap stability | Stable with 2.2µF ceramic output caps only-reduces board space, cost, and failure risk vs. larger or higher-ESR alternatives. |
| Auto-discharge circuit | 30Ω internal NFET per output pulls VOUT to GND within milliseconds when disabled-prevents back-powering or latch-up in downstream logic. |
| Low-noise operation | 146µVRMS (10Hz–100kHz) - suitable for noise-sensitive analog circuits like ADC references or RF bias rails. |
| Thermal & current protection | Integrated foldback current limit and thermal shutdown prevent damage during overload or poor heatsinking conditions. |
Applications
| Smartphone Baseband Power | Portable GPS Module |
|---|---|
Use Scenario: Dual-rail power for application processor (1.8V I/O) and memory interface (1.2V core) in battery-constrained smartphones. IC Role / Device Role / Timing Role: Dual LDO providing isolated, sequenced, low-noise supplies with fast turn-on (<125µs) and auto-discharge for clean reset behavior. Use Value: Eliminates need for discrete discharge resistors and external sequencing ICs-reducing component count by ≥3 and PCB area by >15mm². | Use Scenario: Powering GPS RF front-end (1.8V) and baseband ASIC (1.2V) in handheld navigation devices. IC Role / Device Role / Timing Role: Independent enable pins allow GPS receiver to remain active while baseband enters deep sleep, minimizing system-wide quiescent current. Use Value: Achieves <1µA total shutdown current-extending battery runtime in intermittent-use GPS loggers beyond 30 days on a single coin cell. |
| Notebook Subsystem Regulator | Digital Camera Sensor Bias |
Use Scenario: Dedicated power for embedded controller (1.8V) and touchpad controller (1.2V) in ultra-thin notebooks. IC Role / Device Role / Timing Role: Dual LDO with independent enables supports dynamic power gating per peripheral, synchronized via EC firmware. Use Value: Reduces subsystem standby power by 92% vs. single-rail solutions-enabling 14-day "instant-on" suspend mode compliance. | Use Scenario: Providing low-noise, stable bias for CMOS image sensor analog front-end (1.8V AVDD) and digital core (1.2V DVDD). IC Role / Device Role / Timing Role: Fast line/load transient response (<10µs settling) prevents image artifacts during flash LED activation or autofocus motor surge. Use Value: Maintains PSRR >60dB at 1kHz-suppressing switching noise from adjacent DC-DC converters and preserving SNR in 12-bit image capture. |
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-TR | No auto-discharge circuit; identical pinout, output voltages, and quiescent current. | Not suitable where rapid output discharge is required (e.g., power sequencing, fault-safe shutdown). | Select when cost sensitivity outweighs discharge requirement and external discharge resistors are acceptable. |
| TPL7407LPGDR | Single 7-channel 150mA LDO array; no dual 500mA capability; different pinout and enable logic. | Requires redesign for dual-rail 500mA loads; lacks auto-discharge and µCap support. | Consider only for lower-current, multi-rail systems where footprint and channel count justify trade-offs in output drive and stability. |
Compared with MIC5355-G4YMME-TR, the MIC5356-G4YMME-TR adds essential auto-discharge without increasing size or quiescent current-making it uniquely suited for systems demanding controlled power-down. Versus TPL7407LPGDR, it delivers higher per-rail current, simpler dual-rail integration, and guaranteed µCap stability, reducing design risk in portable applications.
Availability
MIC5356-G4YMME-TR is available at Aetrix Electronics and suitable for smartphone baseband power, portable GPS modules, and notebook embedded controller subsystems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MIC5356-G4YMME-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 Inc. was a U.S.-based semiconductor company specializing in power management, timing, and networking ICs, acquired by Microchip Technology in 2015.
The MIC5355/6 product line was designed specifically for space-constrained, battery-powered portable electronics needing dual, independent, micropower LDO regulation with minimal external components and robust thermal performance.
FAQ
What is the maximum input voltage rating for the MIC5356-G4YMME-TR?
The MIC5356-G4YMME-TR has an absolute maximum input voltage (VIN) rating of +6V, but its specified operating range is +2.5V to +5.5V. Exceeding 5.5V may cause permanent damage or violate safety margins. For reliable operation in 5V systems, ensure VIN remains ≤5.5V with appropriate derating for transients. The MIC5356-G4YMME-TR is not rated for automotive 12V direct input and requires upstream pre-regulation if used in such environments.
Does the MIC5356-G4YMME-TR require external discharge resistors?
No-the MIC5356-G4YMME-TR integrates an internal 30Ω NFET discharge path on both VOUT1 and VOUT2, activated automatically when EN1 or EN2 is driven low. This eliminates the need for external resistors, saves PCB area, and ensures consistent, predictable discharge timing. The MIC5356-G4YMME-TR's auto-discharge feature is exclusive to the MIC5356 family and is not present in MIC5355 variants.
Can the MIC5356-G4YMME-TR operate with zero load current?
Yes-the MIC5356-G4YMME-TR remains stable and in regulation with no load on either output, unlike many LDOs that require minimum load current. This is confirmed in the datasheet's "No Load Stability" section and verified across –40°C to +125°C. The MIC5356-G4YMME-TR draws only 38µA per enabled output under no-load conditions, making it ideal for standby or sleep-mode subsystems.
What is the thermal resistance (θJA) of the MIC5356-G4YMME-TR package?
For the MIC5356-G4YMME-TR in its 8-pin ePad MSOP (MME) package, the junction-to-ambient thermal resistance (θJA) is 64.4°C/W under standard JEDEC test conditions (2s2p board). This value assumes proper thermal via implementation connecting the HSPAD to an internal or bottom-layer GND plane. Without adequate thermal vias or copper area, actual θJA may degrade significantly-potentially exceeding 90°C/W-and compromise safe operation at full 500mA load.
Is the MIC5356-G4YMME-TR pin-compatible with other MIC5356 variants?
Yes-all MIC5356 variants-including MIC5356-G4YMME-TR, MIC5356-SGYMME-TR, and MIC5356-JGYMME-TR-share identical 8-pin ePad MSOP (MME) packaging, pinout, and enable logic. Output voltage differences (e.g., 1.8V/1.2V vs. 3.3V/1.8V) are factory-trimmed and do not affect mechanical or electrical compatibility. The MIC5356-G4YMME-TR can be substituted into existing layouts designed for other MIC5356 MME variants without PCB changes, provided voltage requirements match system needs.
MIC5356-G4YMME-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) 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):
- 1.2V, 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-TR FAQ
1.How can I place an order for MIC5356-G4YMME-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5356-G4YMME-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 MIC5356-G4YMME-TR reliable?
The price and inventory of MIC5356-G4YMME-TR 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-TR is usually 5 days.
3.What payment methods are accepted for MIC5356-G4YMME-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5356-G4YMME-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5356-G4YMME-TR?
MIC5356-G4YMME-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5356-G4YMME-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 MIC5356-G4YMME-TR?
For technical support, including MIC5356-G4YMME-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5356-G4YMME-TR requirements.
6.How does Aetrix verify that MIC5356-G4YMME-TR is sourced from the original manufacturer or authorized distributors?
All MIC5356-G4YMME-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 MIC5356-G4YMME-TR meets industry standards.
7.What is the process for return or replacement of MIC5356-G4YMME-TR?
All MIC5356-G4YMME-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5356-G4YMME-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 MIC5356-G4YMME-TR part is unused and in its original packaging.
Return procedure for MIC5356-G4YMME-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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