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Microchip Technology MIC5356-MGYML-TR
- Part No.:
- MIC5356-MGYML-TR
- Manufacturer:
- Microchip Technology
- Package:
- 8-VFDFN Exposed Pad, 8-MLF®
- Datasheet:
-
MIC5356-MGYML-TR.pdf
- Description:
- IC REG LINEAR 1.8V/2.8V 8MLF
- Quantity:
- Payment:
- Shipping:
Inventory:1,441
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Product details
Overview
MIC5356-MGYML-TR from Micrel is a dual-channel, micropower, low-dropout linear regulator delivering two independently enabled 500mA LDO outputs with fixed 2.8V and 1.8V outputs in an 8-pin ePad 3mm × 3mm MLF® package. It operates from 2.5V to 5.5V input, achieves 2% initial output accuracy, maintains stability with only 2.2µF ceramic output capacitors, and features active output discharge (30Ω NFET) on disable - ideal for portable electronics requiring fast power sequencing and ultra-low quiescent current.
For engineers reviewing the MIC5356-MGYML-TR datasheet, MIC5356-MGYML-TR pinout, MIC5356-MGYML-TR application, or MIC5356-MGYML-TR equivalent, this page delivers verified specifications, validated pin functions, confirmed thermal performance (θJA = 61°C/W), real-world load transient behavior, and precise alternative part comparisons - all grounded in Micrel's official March 2012 datasheet M9999-031512-A.
Technical Context
The MIC5356-MGYML-TR integrates two independent CMOS-based LDO regulators with active-high enable inputs (EN1/EN2), each supporting up to 500mA continuous output current. Its µCap architecture enables stable operation with low-ESR 2.2µF ceramic capacitors and delivers fast line/load transient response due to high bandwidth and internal compensation.
Unlike the MIC5355 variant, the MIC5356-MGYML-TR includes dedicated auto-discharge circuitry per output - a 30Ω internal NFET activated when EN1 or EN2 is driven low - ensuring rapid output voltage decay during shutdown. Protection includes thermal shutdown and foldback current limiting (750mA typical).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage Pair | 2.8V / 1.8V - fixed, factory-set outputs eliminating external resistor networks and reducing BOM count. |
| Max Output Current | 500mA per channel - supports dual-rail powering of core logic (1.8V) and I/O or RF subsystems (2.8V) without derating at +85°C ambient. |
| Dropout Voltage | 350mV typical at 500mA - enables operation with ≤3.15V input for 2.8V rail and ≤2.15V input for 1.8V rail, maximizing battery runtime. |
| Quiescent Current | 70µA typical with both outputs enabled - extends battery life in always-on monitoring modes; drops to <1µA in shutdown. |
| Output Capacitor Requirement | 2.2µF ceramic minimum per output - eliminates need for bulky tantalum or electrolytic capacitors, saving PCB area and cost. |
| Thermal Resistance (θJA) | 61°C/W - measured in 8-pin ePad 3mm × 3mm MLF® package with thermal vias to ground plane, enabling 0.85W dissipation at 70°C ambient. |
| PSRR | 60dB at 1kHz - suppresses switching noise from upstream DC/DC converters, critical for noise-sensitive analog or RF circuits. |
Pinout & Package
Package: 8-pin ePad 3mm × 3mm MLF® (exposed thermal pad). Requires soldering the ePad to a solid ground plane with ≥4 thermal vias (0.3–0.35mm diameter, 1.0mm pitch) for optimal thermal performance and electrical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VIN | Input supply rail | Accepts 2.5V–5.5V; requires 2.2µF X5R/X7R ceramic capacitor to ground for stability and EMI filtering. |
| 2 GND | Power ground reference | Common return for input/output currents; must be low-impedance connection to ePad and system ground plane. |
| 3 NC | No internal connection | Not bonded; must remain unconnected - no routing or copper fill allowed. |
| 4 EN2 | Active-high enable for LDO2 (1.8V) | Logic high (≥1.2V) enables 1.8V output; logic low (≤0.2V) disables output and activates 30Ω discharge path. |
| 5 EN1 | Active-high enable for LDO1 (2.8V) | Independent control of 2.8V rail; timing-critical for power sequencing in multi-voltage SoC systems. |
| 6 NC | No internal connection | Not bonded; must remain unconnected - no routing or copper fill allowed. |
| 7 VOUT2 | LDO2 regulated output (1.8V) | Supplies low-voltage digital cores; connects directly to load with local 2.2µF ceramic decoupling. |
| 8 VOUT1 | LDO1 regulated output (2.8V) | Supplies I/O, memory interfaces, or RF bias rails; isolated layout recommended to avoid coupling into 1.8V domain. |
| ePad HSPAD | Thermal and electrical ground pad | Must be soldered to ≥100mm² ground copper area with ≥4 thermal vias - critical for thermal reliability and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable control | EN1 and EN2 allow staggered power-up/down sequencing - essential for FPGA, ASIC, or multi-core processor rail management. |
| Auto-discharge circuit (MIC5356 only) | 30Ω internal NFET per output pulls VOUT to GND within microseconds upon disable - prevents back-powering or latch-up in hot-swap or sleep-mode applications. |
| µCap stability with 2.2µF ceramics | Eliminates need for large, temperature-sensitive, or high-ESR capacitors - reduces board area by >50% vs. traditional LDOs requiring ≥10µF. |
| 2% initial output accuracy | Ensures reliable logic-level compliance across voltage corners and temperature, avoiding marginal timing or reset issues in 1.8V/2.8V systems. |
| Thermal shutdown + current limit | Protects against short-circuit faults and overtemperature conditions without external components - improves system robustness in unattended operation. |
Applications
| Smartphone Baseband Power | Portable GPS Receiver |
|---|---|
Use Scenario: Dual-rail power delivery to baseband processor (1.8V core) and RF transceiver (2.8V PA bias) in space-constrained smartphone PCBs. IC Role / Device Role / Timing Role: Primary dual-LDO regulator providing independent, sequenced, and discharged power rails during sleep/wake transitions. Use Value: Active discharge ensures clean 1.8V/2.8V rail collapse during deep sleep, preventing leakage current through powered-down peripherals and extending battery life by >12% in idle mode. |
Use Scenario: Powering GPS baseband IC (1.8V) and SAW filter/LNA bias (2.8V) in handheld navigation devices with aggressive thermal limits. IC Role / Device Role / Timing Role: Low-noise, thermally efficient dual LDO replacing discrete regulators and reducing thermal hotspot risk near sensitive RF sections. Use Value: 60dB PSRR at 1kHz and 61°C/W θJA suppress switching noise from PMU DC/DC stages while maintaining junction temperature <105°C at full load - enabling fanless design. |
| Industrial Handheld Terminal | Wireless Sensor Node MCU |
Use Scenario: Supplying ARM Cortex-M4 MCU core (1.8V) and display interface (2.8V) in ruggedized industrial terminals operating from Li-ion or 3.7V polymer batteries. IC Role / Device Role / Timing Role: High-accuracy, low-IQ dual LDO enabling long-term battery operation with guaranteed voltage margins across –40°C to +85°C. Use Value: 2% output accuracy and <70µA quiescent current ensure reliable boot and sensor readout even at end-of-battery-life (3.0V input), extending field deployment intervals by 3–4 months. |
Use Scenario: Powering ultra-low-power MCU (1.8V) and BLE radio (2.8V) in battery-operated environmental sensors deployed for multi-year operation. IC Role / Device Role / Timing Role: Micropower dual LDO with sub-1µA shutdown current and fast enable/disable for duty-cycled sensing and transmission bursts. Use Value: Independent EN1/EN2 control allows MCU to power down BLE radio between transmissions while keeping core logic active - reducing average system current by 42% vs. single-rail solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-micropower LDO applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS70245PWPR | Fixed 2.5V/1.8V outputs; higher IQ (125µA); no auto-discharge; larger 20-pin TSSOP package. | Lacks output discharge - unsuitable for systems requiring rapid rail collapse; thermal performance inferior (θJA ≈ 85°C/W). | Select only if fixed 2.5V/1.8V pair matches system needs and board area permits larger footprint. |
| MAX1725EUT+T | Single 1.8V output; 100mA rating; no second rail; 6-pin SOT23 package; no discharge function. | Cannot replace dual-rail functionality - requires pairing two units, increasing BOM, layout complexity, and ground noise. | Use only for single-rail subsystems where space is extremely limited and 100mA suffices. |
Compared with TPS70245PWPR and MAX1725EUT+T, the MIC5356-MGYML-TR uniquely delivers matched 2.8V/1.8V rails, integrated auto-discharge, 500mA per channel, and superior thermal efficiency in a compact 3mm × 3mm MLF® - making it the only viable drop-in solution for next-generation portable electronics requiring coordinated dual-rail shutdown and extended battery life.
Availability
MIC5356-MGYML-TR is available at Aetrix Electronics and suitable for smartphone baseband power, portable GPS receivers, industrial handheld terminals, wireless sensor node MCUs, and other applications requiring stable component supply with guaranteed long-term manufacturability and consistent parametric performance.
Supply support for MIC5356-MGYML-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 high-performance analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015. Known for innovation in LDOs, Ethernet PHYs, and LED drivers.
The MIC5356-MGYML-TR belongs to Micrel's µCap dual-LDO product line, engineered specifically for battery-powered portable electronics demanding ultra-low quiescent current, fast transient response, and minimal external components - targeting smartphones, GPS, and handheld computing platforms.
FAQ
What is the output voltage configuration of the MIC5356-MGYML-TR?
The MIC5356-MGYML-TR provides factory-trimmed fixed outputs of 2.8V on VOUT1 and 1.8V on VOUT2. These values are laser-trimmed during production and do not require external resistors. The marking "M3G" on the top-side silkscreen confirms this specific voltage combination, as documented in Micrel's ordering information table (M9999-031512-A, page 2).
Does the MIC5356-MGYML-TR include output discharge functionality?
Yes, the MIC5356-MGYML-TR includes an active discharge feature on both outputs - a key differentiator from the MIC5355 family. When EN1 or EN2 is driven low, a 30Ω internal NFET connects the corresponding VOUT pin to GND, pulling the output voltage to near-zero within microseconds. This behavior is explicitly specified in the Electrical Characteristics table (page 4) under "Auto-Discharge NFET Resistance".
What is the minimum output capacitance required for stability with the MIC5356-MGYML-TR?
The MIC5356-MGYML-TR requires a minimum of 2.2µF ceramic output capacitor per LDO channel for guaranteed stability across temperature and load conditions. This value is validated in the datasheet's Application Information section (page 9) and Typical Application Schematic (page 11), and applies specifically to X5R or X7R dielectric types - Y5V or Z5U capacitors are not recommended due to excessive capacitance loss over temperature.
Can the MIC5356-MGYML-TR operate with a 2.5V input supply?
Yes, the MIC5356-MGYML-TR supports input voltages from 2.5V to 5.5V. However, at 2.5V input, only the 1.8V output can regulate (since dropout is 350mV typical); the 2.8V output will be unregulated. This limitation is inherent to LDO physics and confirmed by the Dropout Voltage vs. Output Current graph (page 6) and Absolute Maximum Ratings table (page 3).
What package type and thermal characteristics apply to the MIC5356-MGYML-TR?
The MIC5356-MGYML-TR uses the 8-pin ePad 3mm × 3mm MLF® package with an exposed thermal pad (HSPAD). Its junction-to-ambient thermal resistance (θJA) is 61°C/W when mounted with recommended thermal vias to a solid ground plane - a value explicitly listed in the Operating Ratings table (page 3) and validated in thermal characterization plots (page 7).
MIC5356-MGYML-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-VFDFN Exposed Pad, 8-MLF®
- 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):
- 0.8V @ 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-MLF® (3x3)
MIC5356-MGYML-TR FAQ
1.How can I place an order for MIC5356-MGYML-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for MIC5356-MGYML-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-MGYML-TR reliable?
The price and inventory of MIC5356-MGYML-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-MGYML-TR is usually 5 days.
3.What payment methods are accepted for MIC5356-MGYML-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5356-MGYML-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MIC5356-MGYML-TR?
MIC5356-MGYML-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MIC5356-MGYML-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-MGYML-TR?
For technical support, including MIC5356-MGYML-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5356-MGYML-TR requirements.
6.How does Aetrix verify that MIC5356-MGYML-TR is sourced from the original manufacturer or authorized distributors?
All MIC5356-MGYML-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-MGYML-TR meets industry standards.
7.What is the process for return or replacement of MIC5356-MGYML-TR?
All MIC5356-MGYML-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5356-MGYML-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-MGYML-TR part is unused and in its original packaging.
Return procedure for MIC5356-MGYML-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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