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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Microchip Technology MIC5326-2.8YMT-TR

Name: MIC5326-2.8YMT-TR
Brand: Microchip Technology
SKU: MIC5326-2.8YMT-TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MIC5326-2.8YMT-TR

Manufacturer:: Microchip Technology

Category:: Voltage Regulators - Linear, Low Drop Out (LDO) Regulators

Package:: 4-UFDFN Exposed Pad, 4-TMLF®

Datasheet:: MIC5326-2.8YMT-TR.pdf

Description:: IC REG LINEAR 2.8V 150MA 4TMLF

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Product details

Overview

MIC5326-2.8YMT-TR from Micrel is a fixed-output 2.8V, 150mA low-dropout linear regulator with 24µA quiescent current, 85mV dropout at full load, and stable operation with 1µF ceramic output capacitors - designed for space-constrained battery-powered systems such as GPS modules and portable media players.

For engineers reviewing the MIC5326-2.8YMT-TR datasheet, MIC5326-2.8YMT-TR pinout, MIC5326-2.8YMT-TR application, or MIC5326-2.8YMT-TR equivalent, key selection criteria include ultra-low operating current, thermal shutdown protection, TTL-compatible enable input, and compatibility with tiny 1.2mm × 1.6mm Thin MLF® packaging.

Technical Context

The MIC5326-2.8YMT-TR implements a CMOS-based LDO architecture with internal reference and error amplifier, delivering fast transient response and 60dB PSRR at 1kHz. Its active-high enable pin interfaces directly with logic-level control signals without pull-up requirements.

Thermal shutdown and foldback current limiting are integrated to protect against overtemperature and short-circuit faults. The device operates across –40°C to +125°C junction temperature and supports input voltages from 2.3V to 5.5V - enabling direct regulation from single-cell Li-ion or multi-cell alkaline supplies.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.8V ±2% - eliminates external feedback resistors and simplifies BOM in compact designs.
Max Output Current	150mA continuous - sufficient for powering RF front-ends, microcontroller cores, or sensor signal chains.
Quiescent Current	24µA typical - extends battery life in always-on or low-duty-cycle portable devices.
Dropout Voltage	85mV at 150mA - enables regulation from 2.885V input, supporting deep discharge of Li-ion cells.
PSRR	60dB at 1kHz - suppresses switching noise from adjacent DC/DC converters in mixed-power-supply systems.
Output Noise	90µV_RMS (10Hz–100kHz) - suitable for noise-sensitive analog circuits like ADC references or audio codecs.
Enable Threshold	V_IH = 1.2V, V_IL = 0.2V - compatible with 1.8V/3.3V logic families without level-shifting.

Pinout & Package

Package: 4-pin 1.2mm × 1.6mm Thin MLF® (MT) with exposed thermal pad (internally connected to GND). RoHS-compliant, halogen-free mold compound, NiPdAu lead finish.

Pin/Terminal	Circuit Role	Design Meaning
1 - VIN	Input supply rail	Accepts 2.3V–5.5V; requires 1µF low-ESR ceramic bypass capacitor to GND for stability.
2 - GND	Power ground reference	Common return path for input/output currents; connects internally to exposed EPAD for thermal conduction.
3 - EN	Active-high enable control	Drives regulator ON when ≥1.2V; pulls output to zero-current shutdown state when ≤0.2V - must not float.
4 - VOUT	Regulated output	Delivers stable 2.8V ±2%; requires ≥1µF ceramic capacitor to GND for loop stability and transient response.

Key Features

Feature	Design Value
Ultra-low quiescent current	24µA typical - reduces standby power loss by >90% vs. standard LDOs in battery-backed applications.
Small-footprint packaging	1.2mm × 1.6mm Thin MLF® - saves >60% board area vs. SOT-23 packages while improving thermal performance via EPAD.
Capacitor-optimized stability	Stable with 1µF X5R/X7R ceramic output capacitor - eliminates need for larger, higher-cost tantalum or electrolytic types.
Fault protection	Integrated thermal shutdown and current limit - prevents damage during overload or PCB-level thermal runaway events.

Applications

GPS Modules	Portable Media Players
Use Scenario: Powering GPS baseband ICs and RF receivers in handheld navigation units with limited PCB real estate and strict battery life targets. IC Role / Device Role / Timing Role: Primary 2.8V supply for GNSS baseband processor and LNA biasing circuitry. Use Value: 24µA quiescent current extends time-between-charges; 85mV dropout enables operation down to 2.885V input, matching Li-ion cell discharge curve.	Use Scenario: Regulating voltage for audio DACs, flash memory interfaces, and display drivers in MP3/MP4 players. IC Role / Device Role / Timing Role: Low-noise 2.8V source for analog audio stages and high-speed digital I/O buffers. Use Value: 90µV_RMS output noise avoids audible hiss; 1µF ceramic stability reduces component count and cost vs. legacy LDOs.
Digital Cameras	PDA Systems
Use Scenario: Supplying image sensor interface logic and auto-focus motor drivers in compact digital still/video cameras. IC Role / Device Role / Timing Role: Dedicated 2.8V rail for CMOS image sensor I/O and timing controller logic. Use Value: Fast transient response maintains voltage during burst-mode sensor readout; thermal shutdown protects against lens motor stall conditions.	Use Scenario: Providing regulated 2.8V for touchscreen controllers, SD card interfaces, and Bluetooth baseband in legacy PDA platforms. IC Role / Device Role / Timing Role: Secondary low-noise supply for peripheral subsystems sharing a common battery rail. Use Value: TTL-compatible EN pin allows coordinated power sequencing with main SoC; 173°C/W θ_JA enables reliable operation in sealed enclosures.

GPS Modules

Portable Media Players

Use Scenario: Powering GPS baseband ICs and RF receivers in handheld navigation units with limited PCB real estate and strict battery life targets.

IC Role / Device Role / Timing Role: Primary 2.8V supply for GNSS baseband processor and LNA biasing circuitry.

Use Value: 24µA quiescent current extends time-between-charges; 85mV dropout enables operation down to 2.885V input, matching Li-ion cell discharge curve.

Use Scenario: Regulating voltage for audio DACs, flash memory interfaces, and display drivers in MP3/MP4 players.

IC Role / Device Role / Timing Role: Low-noise 2.8V source for analog audio stages and high-speed digital I/O buffers.

Use Value: 90µV_RMS output noise avoids audible hiss; 1µF ceramic stability reduces component count and cost vs. legacy LDOs.

Digital Cameras

PDA Systems

Use Scenario: Supplying image sensor interface logic and auto-focus motor drivers in compact digital still/video cameras.

IC Role / Device Role / Timing Role: Dedicated 2.8V rail for CMOS image sensor I/O and timing controller logic.

Use Value: Fast transient response maintains voltage during burst-mode sensor readout; thermal shutdown protects against lens motor stall conditions.

Use Scenario: Providing regulated 2.8V for touchscreen controllers, SD card interfaces, and Bluetooth baseband in legacy PDA platforms.

IC Role / Device Role / Timing Role: Secondary low-noise supply for peripheral subsystems sharing a common battery rail.

Use Value: TTL-compatible EN pin allows coordinated power sequencing with main SoC; 173°C/W θ_JA enables reliable operation in sealed enclosures.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP1700T-2802E/TT	250mA output, 1.6µA quiescent current, SOT-23-3 package - lower IQ but higher dropout (290mV @ 250mA).	Larger footprint, no enable pin - unsuitable for power-gated subsystems requiring zero-off-state current.	Select when ultra-low standby current outweighs dropout and enable functionality.
Torex XC6206P282MR-G	150mA output, 1µA IQ, SOT-23-3 - no enable pin, 350mV dropout at 150mA, requires ≥4.7µF output capacitance.	Lacks EN control and thermal protection; higher minimum capacitance increases board area and cost.	Choose only for non-critical, cost-sensitive applications where enable and fault protection are unnecessary.

Compared with MCP1700T-2802E/TT and XC6206P282MR-G, the MIC5326-2.8YMT-TR uniquely balances ultra-low IQ (24µA), low dropout (85mV), integrated enable, and robust protection - making it optimal for thermally constrained, battery-operated systems requiring precise power sequencing and reliability.

Availability

MIC5326-2.8YMT-TR is available at Aetrix Electronics and suitable for GPS modules, portable media players, and digital cameras requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for MIC5326-2.8YMT-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, analog, and RF solutions before its acquisition by Microchip Technology in 2015.

The MIC5326 product line delivers ultra-low-IQ LDOs optimized for portable electronics - targeting applications where battery runtime, board space, and thermal constraints dominate power system design.

FAQ

What is the maximum input voltage rating for the MIC5326-2.8YMT-TR?

The MIC5326-2.8YMT-TR has an absolute maximum input voltage rating of +6V, but its specified operating range is 2.3V to 5.5V. Exceeding 5.5V may cause permanent damage even if within the absolute maximum limit, as internal protection circuits are not guaranteed beyond operational ratings. Always maintain VIN ≤ 5.5V in normal use.

Does the MIC5326-2.8YMT-TR require an external pull-up resistor on the EN pin?

No, the MIC5326-2.8YMT-TR does not require an external pull-up resistor on the EN pin. Its enable input uses CMOS technology with defined logic thresholds (V_IH = 1.2V, V_IL = 0.2V); however, the pin must never be left floating - it must be driven actively high or low by a controller or hard-wired to VIN/GND depending on system power architecture.

Can the MIC5326-2.8YMT-TR operate with a 0.47µF output capacitor?

No, the MIC5326-2.8YMT-TR requires a minimum 1µF ceramic output capacitor for guaranteed stability across temperature and load conditions. Using 0.47µF violates the design specification and risks oscillation or poor transient response. X5R or X7R dielectric types are recommended to ensure capacitance retention over –40°C to +125°C.

What is the thermal resistance (θ_JA) of the MIC5326-2.8YMT-TR package?

The MIC5326-2.8YMT-TR in its 1.2mm × 1.6mm Thin MLF® package has a junction-to-ambient thermal resistance (θ_JA) of 173°C/W under standard JEDEC test conditions. This value assumes proper PCB layout with thermal vias connecting the exposed pad to internal ground planes - actual θ_JA improves with enhanced copper area and thermal mass.

Is the MIC5326-2.8YMT-TR RoHS compliant and halogen-free?

Yes, the MIC5326-2.8YMT-TR is RoHS compliant and uses a halogen-free mold compound. Its Thin MLF® package features NiPdAu lead finish and meets green manufacturing standards per Micrel's documentation dated October 2008 - verified in the official ordering information table and package notes.

MIC5326-2.8YMT-TR Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: 4-UFDFN Exposed Pad, 4-TMLF®

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Output Configuration:: Positive

Output Type:: Fixed

Number of Regulators:: 1

Voltage - Input (Max):: 5.5V

Voltage - Output (Min/Fixed):: 2.8V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.15V @ 150mA

Current - Output:: 150mA

Current - Quiescent (Iq):: 35 µA

Current - Supply (Max):: -

PSRR:: 60dB ~ 50dB (1kHz ~ 20kHz)

Control Features:: Enable

Protection Features:: Over Current, Over Temperature

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 4-TMLF® (1.2x1.6)

MIC5326-2.8YMT-TR FAQ

1.How can I place an order for MIC5326-2.8YMT-TR through Aetrix?

Please submit a Request for Quotation (RFQ) for MIC5326-2.8YMT-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 MIC5326-2.8YMT-TR reliable?

The price and inventory of MIC5326-2.8YMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5326-2.8YMT-TR is usually 5 days.

3.What payment methods are accepted for MIC5326-2.8YMT-TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5326-2.8YMT-TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MIC5326-2.8YMT-TR?

MIC5326-2.8YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MIC5326-2.8YMT-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 MIC5326-2.8YMT-TR?

For technical support, including MIC5326-2.8YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5326-2.8YMT-TR requirements.

6.How does Aetrix verify that MIC5326-2.8YMT-TR is sourced from the original manufacturer or authorized distributors?

All MIC5326-2.8YMT-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 MIC5326-2.8YMT-TR meets industry standards.

7.What is the process for return or replacement of MIC5326-2.8YMT-TR?

All MIC5326-2.8YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5326-2.8YMT-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 MIC5326-2.8YMT-TR part is unused and in its original packaging.

Return procedure for MIC5326-2.8YMT-TR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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