Microchip Technology MIC5356-JGYMME-TR

Overview

MIC5356-JGYMME-TR from Micrel is a dual-channel, micropower, low-dropout linear regulator delivering independent 2.5V and 1.8V outputs at up to 500mA each, with 70μA typical quiescent current (both outputs enabled), 350mV dropout at full load, and integrated active output discharge. It serves as a compact power management solution for multi-rail portable electronics requiring stable, low-noise, battery-efficient voltage regulation.

For engineers reviewing the MIC5356-JGYMME-TR datasheet, MIC5356-JGYMME-TR pinout, MIC5356-JGYMME-TR application, or MIC5356-JGYMME-TR equivalent, key selection criteria include dual independent enable control, µCap stability with 2.2µF ceramic capacitors, thermal performance in the 8-pin ePad MSOP package, and the auto-discharge feature unique to MIC5356 variants.

Technical Context

The MIC5356-JGYMME-TR integrates two fully independent LDO regulators sharing only input and ground connections, each with active-high enable logic (EN1/EN2), current limiting, and thermal shutdown. Its architecture supports simultaneous or staggered activation and features separate ground current paths per channel.

Unlike the MIC5355, the MIC5356-JGYMME-TR includes an internal 30Ω NFET discharge path per output activated during disable, ensuring rapid VOUT decay without external components. It operates across 2.5V–5.5V input and maintains ±2% output accuracy over –40°C to +125°C.

Key Specifications

Pinout & Package

Package: 8-pin ePad MSOP (MME) with exposed thermal pad (HSPAD) - provides low θ_JA of 64.4°C/W and requires connection of the ePad to PCB ground plane via thermal vias for optimal thermal performance.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-LDO regulator applications.

Compared with MIC5356-SGYMME-TR, the MIC5356-JGYMME-TR delivers lower primary rail voltage (2.5V vs. 3.3V) for reduced power consumption in modern low-voltage logic, while retaining identical thermal, sequencing, and discharge behavior. The TPL7407LDR serves a fundamentally different purpose - it is a driver, not a regulator - and cannot substitute for precision dual-rail voltage control.

Availability

MIC5356-JGYMME-TR is available at Aetrix Electronics and suitable for smartphone baseband power, portable GPS modules, and notebook subsystem regulation requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for MIC5356-JGYMME-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 analog, power management, and timing solutions before its acquisition by Microchip Technology in 2015.

The MIC5355/6 product line was designed specifically for space-constrained, battery-powered portable electronics requiring dual independent, low-quiescent, µCap-stable LDO regulation with integrated power sequencing and discharge control.

FAQ

What is the output voltage configuration of the MIC5356-JGYMME-TR?

The MIC5356-JGYMME-TR provides fixed dual outputs: 2.5V on VOUT1 and 1.8V on VOUT2. This configuration is laser-trimmed during manufacturing and cannot be adjusted externally. Both outputs are independently regulated with ±2% initial accuracy over temperature and load, making MIC5356-JGYMME-TR suitable for powering mixed-signal SoCs requiring separate core and I/O voltage domains.

Does the MIC5356-JGYMME-TR include auto-discharge functionality?

Yes, the MIC5356-JGYMME-TR includes an active discharge circuit on both outputs, a feature distinguishing it from the MIC5355 series. When either EN1 or EN2 is driven low, a 30Ω internal NFET connects the corresponding VOUT pin to GND, rapidly discharging external capacitors. This behavior is confirmed in the Electrical Characteristics table and Functional Diagrams section of the official Micrel datasheet for MIC5356-JGYMME-TR.

What is the minimum output capacitance required for stability with the MIC5356-JGYMME-TR?

The MIC5356-JGYMME-TR requires a minimum 2.2µF ceramic output capacitor per channel for guaranteed stability, as specified in the Application Information and Electrical Characteristics sections. X5R or X7R dielectric types are recommended due to their stable capacitance over temperature; Y5V dielectrics are explicitly discouraged. This µCap requirement eliminates dependency on capacitor ESR and simplifies design compared to traditional LDOs, and applies directly to MIC5356-JGYMME-TR in its 8-pin ePad MSOP package.

What package type and thermal characteristics does the MIC5356-JGYMME-TR use?

The MIC5356-JGYMME-TR is packaged in an 8-pin ePad MSOP (MME) with an exposed thermal pad (HSPAD). Its junction-to-ambient thermal resistance (θ_JA) is 64.4°C/W when mounted on a standard PCB with the ePad soldered to a solid ground plane and thermal vias. This package enables continuous 500mA operation per channel up to 70.3°C ambient in a 2.5V/1.8V application at 3.0V input - a specification validated in the Thermal Considerations section of the MIC5356-JGYMME-TR datasheet.

How does the enable logic work on the MIC5356-JGYMME-TR?

The MIC5356-JGYMME-TR uses two independent active-high enable inputs: EN1 controls the 2.5V output (VOUT1), and EN2 controls the 1.8V output (VOUT2). A logic high ≥1.2V enables the respective LDO; a logic low ≤0.2V disables it and activates the auto-discharge path. The enable pins use CMOS input structure and must never be left floating - doing so risks indeterminate output states. This dual-enable architecture allows flexible power sequencing and is a defining feature of MIC5356-JGYMME-TR.