Microchip Technology MIC5320-KGYMT-TR

Overview

MIC5320-KGYMT-TR from Micrel is a dual-channel ultra-low-dropout (ULDO™) linear regulator delivering 150mA per output with fixed 2.6V/1.8V outputs, housed in a 6-pin 1.6mm × 1.6mm Thin MLF® package. It operates from 2.3V to 5.5V input, achieves 35mV dropout at 150mA, and stabilizes with only 1µF ceramic output capacitors-enabling compact power management for space-constrained portable imaging and mobile subsystems.

For engineers reviewing the MIC5320-KGYMT-TR datasheet, MIC5320-KGYMT-TR pinout, MIC5320-KGYMT-TR application, or MIC5320-KGYMT-TR equivalent, this page delivers verified electrical specs, thermal performance data, enable-controlled dual-output sequencing, and validated alternatives for dual-rail low-noise biasing in camera modules and handheld electronics.

Technical Context

The MIC5320-KGYMT-TR integrates two independent CMOS-based ULDO regulators sharing a common VIN and GND, each with dedicated active-high enable pins (EN1/EN2) for precise power sequencing. Its µCap architecture eliminates need for large bulk capacitance while maintaining stability across –40°C to +125°C junction temperature range.

Each LDO features internal current limiting (300–950mA), thermal shutdown, and <90µVRMS output noise (10Hz–100kHz). Dropout voltage remains ≤35mV at full 150mA load per channel, and ground current stays ≤150µA under full-load dual-output operation-critical for battery-powered systems requiring low quiescent power.

Key Specifications

Pinout & Package

Package: 6-pin 1.6mm × 1.6mm Thin MLF® (exposed pad grounded), RoHS-compliant, halogen-free, NiPdAu lead finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS7A202618PDBVR and RT9080-2618GJ6, the MIC5320-KGYMT-TR offers the smallest footprint (2.56mm²), lowest dropout (35mV), and best thermal performance (100°C/W) for 150mA dual-rail applications-making it optimal for space- and efficiency-critical imaging subsystems.

Availability

MIC5320-KGYMT-TR is available at Aetrix Electronics and suitable for mobile camera modules, GPS receivers, and portable media players requiring stable component supply, consistent parametric performance across temperature, and long-term production continuity.

Supply support for MIC5320-KGYMT-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. Known for high-performance LDOs and Ethernet PHYs, Micrel emphasized ultra-low-noise, low-dropout regulation for portable electronics.

The MIC5320-KGYMT-TR belongs to Micrel's µCap ULDO™ family, engineered specifically for ultra-thin portable imaging and mobile subsystems where board space, thermal density, and analog signal integrity are critical constraints.

FAQ

What is the maximum ambient temperature for continuous 150mA operation on both outputs of the MIC5320-KGYMT-TR?

The MIC5320-KGYMT-TR in its 1.6mm × 1.6mm Thin MLF® package has a junction-to-ambient thermal resistance (θ_JA) of 100°C/W. With 2.6V/1.8V outputs at 150mA each and 3.3V input, power dissipation is 0.345W. Using TJ(max) = 125°C, the maximum ambient temperature is calculated as TA = 125°C − (0.345W × 100°C/W) = 90.5°C. Thus, MIC5320-KGYMT-TR supports full-load operation up to +90.5°C ambient with proper PCB copper area.

Can the MIC5320-KGYMT-TR operate without load on either output?

Yes, the MIC5320-KGYMT-TR is designed for no-load stability-a key feature distinguishing it from many legacy LDOs. Its µCap architecture maintains regulation and avoids oscillation even when one or both outputs are unloaded, making MIC5320-KGYMT-TR suitable for CMOS RAM keep-alive circuits and partial-power-down modes in camera modules.

What capacitor dielectric types are recommended for the MIC5320-KGYMT-TR output?

X7R or X5R ceramic dielectrics are explicitly recommended for the MIC5320-KGYMT-TR's 1µF output capacitors. These offer ±15% capacitance variation over temperature, ensuring stable regulation. Z5U and Y5V dielectrics are discouraged-their >50% capacitance loss over temperature risks instability. The MIC5320-KGYMT-TR's design is optimized for low-ESR ceramics; no additional series resistance is needed.

How does the enable logic work on the MIC5320-KGYMT-TR, and what happens if an enable pin is left floating?

The MIC5320-KGYMT-TR uses active-high CMOS enable inputs: EN1 controls the 2.6V output, EN2 controls the 1.8V output. Logic high (>1.1V) enables; logic low (<0.2V) disables each regulator into near-zero quiescent current state. Floating EN pins are strictly prohibited-they may cause indeterminate output states or erratic turn-on behavior. Each enable must be actively driven or pulled to GND/VIN via appropriate resistors.

Is the MIC5320-KGYMT-TR pin-compatible with other variants in the MIC5320 family?

Yes, all MIC5320 variants-including MIC5320-KGYMT-TR-in the 6-pin Thin MLF® package share identical pinout, footprint, and thermal pad configuration. Voltage variants (e.g., MIC5320-JGYMT for 2.5V/1.8V) are electrically and mechanically interchangeable on the same PCB layout, enabling easy voltage optimization without redesign. Only the marking and internal trim differ.