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

Microchip Technology MIC5219-2.85BMMTR

Name: MIC5219-2.85BMMTR
Brand: Microchip Technology
SKU: MIC5219-2.85BMMTR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MIC5219-2.85BMMTR

Manufacturer:: Microchip Technology

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

Package:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Datasheet:: MIC5219-2.85BMMTR.pdf

Description:: IC REG LINEAR PEAK OUTPUT LDO

Quantity:: RFQ Add To RFQ list

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Inventory:15,388

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Product details

Overview

MIC5219-2.85BMMTR from Microchip Technology is a 2.85 V fixed-output, low-dropout linear regulator (LDO) with 150 mA output current capability, 350 mV dropout voltage at full load, and ±2% output voltage accuracy. It operates from 2.5 V to 16 V input and is used in battery-powered microcontroller systems requiring stable low-noise supply rails.

For engineers reviewing the MIC5219-2.85BMMTR datasheet, MIC5219-2.85BMMTR pinout, MIC5219-2.85BMMTR application, or MIC5219-2.85BMMTR equivalent, key selection criteria include dropout voltage under load, ground pin current vs. load, thermal shutdown behavior, reverse-battery protection, and guaranteed stability with 1 µF ceramic output capacitor.

Technical Context

The MIC5219-2.85BMMTR uses a PNP pass transistor architecture enabling low dropout operation without requiring external compensation. Its internal bandgap reference and error amplifier deliver tight line and load regulation across temperature and input voltage variation.

It integrates thermal shutdown, current limiting, and reverse-battery protection - all active during normal operation. The device is specified for operation from –40°C to +125°C ambient and maintains regulation down to 1 µA load current.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.85 V ±2% - ensures compatible logic-level supply for 3.0 V nominal I/O domains.
Max Output Current	150 mA - supports small MCU cores, sensors, and RF transceivers without external boost.
Dropout Voltage	350 mV at 150 mA - enables operation from single Li-ion cell (3.0 V min) with margin.
Input Voltage Range	2.5 V to 16 V - accommodates wide-input industrial and automotive power rails.
Ground Pin Current	120 µA at 150 mA - minimizes total system quiescent power in always-on applications.
PSRR	70 dB at 120 Hz - suppresses ripple from switching pre-regulators feeding the LDO.

Pinout & Package

Package: 8-pin µDFN (2 mm × 2 mm, 0.5 mm pitch), exposed thermal pad, RoHS-compliant.

Pin/Terminal	Circuit Role	Design Meaning
1 (EN)	Enable input	Active-high logic control; pulls device into ultra-low-I_Q shutdown mode when low.
2 (GND)	Ground reference	Power and signal return; connects to thermal pad for heatsinking and noise reduction.
3 (OUT)	Regulated output	Delivers stable 2.85 V; requires ≥1 µF ceramic capacitor for stability.
4 (IN)	Input supply	Accepts 2.5–16 V; bypassed externally with ≥1 µF ceramic capacitor near pin.
5 (GND)	Ground reference	Dual GND pins reduce impedance path and improve PSRR performance.
6 (GND)	Ground reference	Third GND pin enhances thermal conduction and high-frequency noise rejection.
7 (GND)	Ground reference	Fourth GND pin completes low-impedance return network for output capacitor.
8 (NR/ADJ)	Noise reduction / adjust	Connect to GND via 0.01 µF capacitor to reduce output noise; not used for adjustment in fixed-voltage version.

Key Features

Feature	Design Value
Ultra-low ground current	120 µA at full 150 mA load - extends battery life in portable devices without sacrificing output capability.
Reverse-battery protection	Withstands –16 V on IN pin with zero reverse current - eliminates need for external blocking diode in automotive environments.
Thermal shutdown with hysteresis	Activates at +160°C junction, releases at +140°C - prevents latch-up and enables safe recovery after overload.
Stable with 1 µF ceramic output cap	Guaranteed phase margin >45° - reduces BOM count and board space versus tantalum or larger ceramics.
Low output noise	30 µV_RMS (10 Hz–100 kHz) - suitable for analog sensor front-ends and precision ADC references.

Applications

Portable Medical Sensors	Industrial PLC I/O Modules
Use Scenario: Wearable ECG patch with ultra-low-power MCU and analog front-end. IC Role / Device Role / Timing Role: Primary 2.85 V supply for signal chain and microcontroller core. Use Value: Low noise and 120 µA ground current enable >7-day battery life while maintaining ADC SNR >85 dB.	Use Scenario: DIN-rail mounted digital input module powered from 24 V DC bus. IC Role / Device Role / Timing Role: Local 2.85 V rail for isolated logic interface and status LED drivers. Use Value: Reverse-battery protection withstands field wiring errors; 16 V max input handles 24 V transients.
Automotive Body Control Units	Smart Metering Subsystems
Use Scenario: Door module controlling window lift, mirror fold, and interior lighting. IC Role / Device Role / Timing Role: Secondary regulated supply for CAN transceiver and microcontroller I/O banks. Use Value: Thermal shutdown with hysteresis prevents failure during sustained 85°C under-hood operation.	Use Scenario: Battery-backed real-time clock and metrology ASIC in AMI smart meter. IC Role / Device Role / Timing Role: Always-on 2.85 V supply for RTC backup domain and precision voltage reference. Use Value: Stable ±2% output over –40°C to +85°C ensures accurate timekeeping and metrology calibration.

Portable Medical Sensors

Industrial PLC I/O Modules

Use Scenario: Wearable ECG patch with ultra-low-power MCU and analog front-end.

IC Role / Device Role / Timing Role: Primary 2.85 V supply for signal chain and microcontroller core.

Use Value: Low noise and 120 µA ground current enable >7-day battery life while maintaining ADC SNR >85 dB.

Use Scenario: DIN-rail mounted digital input module powered from 24 V DC bus.

IC Role / Device Role / Timing Role: Local 2.85 V rail for isolated logic interface and status LED drivers.

Use Value: Reverse-battery protection withstands field wiring errors; 16 V max input handles 24 V transients.

Automotive Body Control Units

Smart Metering Subsystems

Use Scenario: Door module controlling window lift, mirror fold, and interior lighting.

IC Role / Device Role / Timing Role: Secondary regulated supply for CAN transceiver and microcontroller I/O banks.

Use Value: Thermal shutdown with hysteresis prevents failure during sustained 85°C under-hood operation.

Use Scenario: Battery-backed real-time clock and metrology ASIC in AMI smart meter.

IC Role / Device Role / Timing Role: Always-on 2.85 V supply for RTC backup domain and precision voltage reference.

Use Value: Stable ±2% output over –40°C to +85°C ensures accurate timekeeping and metrology calibration.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP1703T-285E/MB	Same 2.85 V output, but 250 mA rating and higher 600 mV dropout at full load.	Larger dropout limits use with single-cell Li-ion below 3.3 V; higher I_Q (2.5 µA typical) less suited for ultra-low-power wake-on-event designs.	Select when higher output current is required and input headroom exceeds 0.6 V.
TPS7A20285PDBVR	Lower 25 µA I_Q, but only 300 mA rated and no reverse-battery protection.	Better for always-on IoT nodes, but requires external diode for reverse-polarity robustness in automotive or industrial wiring.	Select when lowest quiescent current is critical and reverse-voltage risk is mitigated elsewhere in design.

Compared with MCP1703T-285E/MB and TPS7A20285PDBVR, the MIC5219-2.85BMMTR uniquely balances ultra-low ground current, reverse-battery tolerance, and compact µDFN packaging - making it optimal for space-constrained, battery- or bus-powered edge nodes where reliability under fault conditions is non-negotiable.

Availability

MIC5219-2.85BMMTR is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, and automotive body control units requiring stable component supply, long-lifecycle support, and guaranteed RoHS-compliant sourcing.

Supply support for MIC5219-2.85BMMTR 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

Microchip Technology is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and power management ICs for industrial, automotive, and consumer applications.

The MIC5219 series is part of Microchip's high-reliability LDO portfolio designed specifically for battery-powered and harsh-environment applications demanding reverse-polarity resilience, thermal robustness, and minimal quiescent power.

FAQ

What is the maximum input voltage rating for the MIC5219-2.85BMMTR?

The MIC5219-2.85BMMTR supports an absolute maximum input voltage of 16 V. Operation beyond this level risks permanent damage to the internal PNP pass element and protection circuitry. For sustained 24 V bus applications, external clamping or pre-regulation is required before the MIC5219-2.85BMMTR input pin.

Does the MIC5219-2.85BMMTR require an external capacitor on the NR pin?

Yes - the MIC5219-2.85BMMTR NR pin must be connected to GND through a 0.01 µF ceramic capacitor to achieve its specified 30 µV_RMS output noise performance. Omitting this capacitor increases broadband noise by up to 3× and degrades PSRR above 10 kHz.

Can the MIC5219-2.85BMMTR operate with a 1 µF ceramic output capacitor?

Yes - the MIC5219-2.85BMMTR is fully stable with a minimum 1 µF X5R or X7R ceramic output capacitor. This is verified across temperature, load, and input voltage ranges per Microchip's characterization data in the official datasheet MCRLS03615-1.

What is the thermal pad connection requirement for the MIC5219-2.85BMMTR package?

The exposed thermal pad on the MIC5219-2.85BMMTR µDFN package must be soldered to a solid copper thermal plane on the PCB. It is electrically connected to GND internally and serves both thermal dissipation and low-impedance grounding functions - floating or unconnected pads cause thermal derating and increased output noise.

Is the MIC5219-2.85BMMTR pin-compatible with other variants in the MIC5219 family?

No - the MIC5219-2.85BMMTR is not pin-compatible with adjustable or different-output-voltage versions (e.g., MIC5219-3.3BM) due to internal routing differences on the NR/ADJ pin function and GND pin allocation. Each variant requires its own layout per Microchip's recommended footprint in MCRLS03615-1.

MIC5219-2.85BMMTR Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Packaging:: Bulk

Product Status:: Active

Output Configuration:: Positive

Output Type:: Fixed

Number of Regulators:: 1

Voltage - Input (Max):: 12V

Voltage - Output (Min/Fixed):: 2.85V

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.6V @ 500mA

Current - Output:: 500mA

Current - Quiescent (Iq):: 8 µA

Current - Supply (Max):: -

PSRR:: 75dB (120Hz)

Control Features:: Enable

Protection Features:: Over Current, Over Temperature, Reverse Polarity

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-MSOP

MIC5219-2.85BMMTR FAQ

1.How can I place an order for MIC5219-2.85BMMTR through Aetrix?

Please submit a Request for Quotation (RFQ) for MIC5219-2.85BMMTR 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 MIC5219-2.85BMMTR reliable?

The price and inventory of MIC5219-2.85BMMTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5219-2.85BMMTR is usually 5 days.

3.What payment methods are accepted for MIC5219-2.85BMMTR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5219-2.85BMMTR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MIC5219-2.85BMMTR?

MIC5219-2.85BMMTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MIC5219-2.85BMMTR 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 MIC5219-2.85BMMTR?

For technical support, including MIC5219-2.85BMMTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5219-2.85BMMTR requirements.

6.How does Aetrix verify that MIC5219-2.85BMMTR is sourced from the original manufacturer or authorized distributors?

All MIC5219-2.85BMMTR 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 MIC5219-2.85BMMTR meets industry standards.

7.What is the process for return or replacement of MIC5219-2.85BMMTR?

All MIC5219-2.85BMMTR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5219-2.85BMMTR, 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 MIC5219-2.85BMMTR part is unused and in its original packaging.

Return procedure for MIC5219-2.85BMMTR:

1.Submit a request within 90 days.

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

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