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

Microchip Technology MIC5302-2.85YMT-TR

Name: MIC5302-2.85YMT-TR
Brand: Microchip Technology
SKU: MIC5302-2.85YMT-TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MIC5302-2.85YMT-TR

Manufacturer:: Microchip Technology

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

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

Datasheet:: MIC5302-2.85YMT-TR.pdf

Description:: IC REG LINEAR 2.85V 150MA 4TMLF

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Product details

Overview

MIC5302-2.85YMT-TR from Micrel is a fixed-output 2.85V, 150mA ultra-low dropout (ULDO™) CMOS linear regulator in a 4-pin 1.2mm × 1.6mm Thin MLF® package. It delivers 50mV dropout at full load, 120µV_RMS output noise, ±2% initial accuracy, and operates from 2.3V–5.5V input-optimized for RF power stages in mobile phones and camera modules where board area and noise sensitivity are critical.

For engineers reviewing the MIC5302-2.85YMT-TR datasheet, MIC5302-2.85YMT-TR pinout, MIC5302-2.85YMT-TR application, or MIC5302-2.85YMT-TR equivalent, key selection factors include its 1.92mm² footprint, zero-off-mode shutdown current (<2µA), thermal/current-limit protection, and guaranteed stability with 1µF ceramic output capacitors.

Technical Context

The MIC5302-2.85YMT-TR uses a CMOS pass device architecture enabling ultra-low dropout and sub-100µA quiescent current across 0–150mA load. Its error amplifier features fast 35µs turn-on time and high PSRR (65dB up to 1kHz), supporting clean biasing of noise-sensitive analog blocks like RF transceivers and image sensors.

It integrates active-high enable logic with defined VIH/VIL thresholds (1.1V/0.2V), internal thermal shutdown, and foldback current limiting (250–725mA). The exposed pad (EPAD) is internally grounded, requiring PCB thermal via connection for junction-to-ambient θ_JA = 173°C/W performance.

Key Specifications

Parameter	Value and Actual Design Meaning
Output Voltage	Fixed 2.85V ±2% initial accuracy ensures stable core bias for 2.8V–3.0V logic rails without external feedback.
Max Output Current	150mA guaranteed delivery supports camera sensor analog front-ends and low-power RF amplifiers.
Dropout Voltage	50mV at 150mA enables operation with only 2.9V input-critical for single-cell Li-ion systems under discharge.
Output Noise	120µV_RMS (10Hz–100kHz) minimizes phase noise in VCOs and jitter in ADC clock domains.
Quiescent Current	85µA total ground current maintains efficiency in always-on subsystems like GPS receivers.
Enable Threshold	VIH = 1.1V min ensures reliable activation from 1.8V GPIOs; VIL = 0.2V max prevents false turn-on from leakage.
Thermal Range	–40°C to +125°C junction operation supports automotive cabin and industrial edge computing deployments.

Pinout & Package

Package: 4-pin 1.2mm × 1.6mm Thin MLF® (MT) with exposed thermal pad (EPAD) internally connected to GND. Occupies only 1.92mm² PCB area-50% smaller than SC-70 and 2mm × 2mm MLF® alternatives.

Pin/Terminal	Circuit Role	Design Meaning
1 - EN	Active-high enable input	CMOS-compatible control signal; must be pulled high (>1.1V) to activate regulator; floating state prohibited.
2 - GND	Ground reference and thermal path	Primary return for load current and regulator bias; EPAD must be soldered to PCB ground plane for thermal integrity.
3 - VIN	Input supply connection	Accepts 2.3V–5.5V; requires ≥1µF low-ESR ceramic bypass capacitor placed adjacent to pin.
4 - VOUT	Regulated output terminal	Delivers 2.85V ±2%; stable with ≥1µF X7R/X5R ceramic capacitor; no-load regulation supported.

Key Features

Feature	Design Value
Ultra-small footprint	1.2mm × 1.6mm Thin MLF® package reduces PCB area by 50% vs. SC-70-enabling dense camera module layouts.
Zero-off-mode shutdown	Draws <2µA when EN = low, eliminating standby drain in GPS or PDA sleep states.
Ceramic-capacitor stability	Guaranteed stable with 1µF X7R/X5R ceramics-no ESR requirements simplify BOM and layout.
Low-noise regulation	120µV_RMS noise and 65dB PSRR up to 1kHz preserve signal integrity in RF and imaging signal chains.
Robust protection	Integrated thermal shutdown and current limit (250–725mA) prevent damage during short-circuit or overtemperature events.

Applications

Mobile Phone RF Power Stage	Digital Camera Image Sensor Bias
Use Scenario: Supplies clean 2.85V bias to power amplifier (PA) driver stages in GSM/UMTS handsets operating near battery minimum voltage. IC Role / Device Role / Timing Role: ULDO regulator providing low-noise, low-dropout voltage conversion from 3.0–3.6V battery to PA analog rail. Use Value: 50mV dropout extends talk time by enabling operation down to 2.9V input; 120µV_RMS noise prevents AM-to-PM distortion in transmit chain.	Use Scenario: Powers analog pixel array and column ADC circuitry in compact digital still/video cameras. IC Role / Device Role / Timing Role: Fixed-output LDO delivering stable 2.85V for image sensor analog core, decoupled from noisy digital domain. Use Value: ±2% output accuracy ensures consistent pixel response; 35µs turn-on allows rapid sensor wake-up without frame loss.
Portable Media Player Audio Codec	GPS Receiver Front-End
Use Scenario: Provides low-noise 2.85V supply to stereo audio DAC and headphone amplifier in PMPs. IC Role / Device Role / Timing Role: Low-ripple LDO isolating sensitive audio circuitry from switching DC/DC converter noise. Use Value: 65dB PSRR suppresses 1MHz–2MHz switching artifacts; 1.92mm² footprint saves space in slim form factors.	Use Scenario: Powers GPS baseband IC and LNA bias in handheld navigation devices with aggressive thermal constraints. IC Role / Device Role / Timing Role: Thermally robust LDO delivering 2.85V under –40°C to +125°C ambient conditions. Use Value: 173°C/W θ_JA and internal thermal shutdown ensure reliability in sealed enclosures; 85µA I_Q extends battery life.

Mobile Phone RF Power Stage

Digital Camera Image Sensor Bias

Use Scenario: Supplies clean 2.85V bias to power amplifier (PA) driver stages in GSM/UMTS handsets operating near battery minimum voltage.

IC Role / Device Role / Timing Role: ULDO regulator providing low-noise, low-dropout voltage conversion from 3.0–3.6V battery to PA analog rail.

Use Value: 50mV dropout extends talk time by enabling operation down to 2.9V input; 120µV_RMS noise prevents AM-to-PM distortion in transmit chain.

Use Scenario: Powers analog pixel array and column ADC circuitry in compact digital still/video cameras.

IC Role / Device Role / Timing Role: Fixed-output LDO delivering stable 2.85V for image sensor analog core, decoupled from noisy digital domain.

Use Value: ±2% output accuracy ensures consistent pixel response; 35µs turn-on allows rapid sensor wake-up without frame loss.

Portable Media Player Audio Codec

GPS Receiver Front-End

Use Scenario: Provides low-noise 2.85V supply to stereo audio DAC and headphone amplifier in PMPs.

IC Role / Device Role / Timing Role: Low-ripple LDO isolating sensitive audio circuitry from switching DC/DC converter noise.

Use Value: 65dB PSRR suppresses 1MHz–2MHz switching artifacts; 1.92mm² footprint saves space in slim form factors.

Use Scenario: Powers GPS baseband IC and LNA bias in handheld navigation devices with aggressive thermal constraints.

IC Role / Device Role / Timing Role: Thermally robust LDO delivering 2.85V under –40°C to +125°C ambient conditions.

Use Value: 173°C/W θ_JA and internal thermal shutdown ensure reliability in sealed enclosures; 85µA I_Q extends battery life.

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low dropout LDO applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MCP1702T-285I/OT	2.85V fixed output, 250mA rating, 600mV dropout at 250mA, SOT-23-5 package (2.9mm²)	Higher dropout limits use below 3.5V input; larger footprint restricts ultra-compact designs	Select when higher output current is required and board area permits SOT-23-5 placement.
Torex XC6209F285MR-G	2.85V fixed output, 300mA rating, 120mV dropout at 300mA, USP-4 package (1.2mm × 1.6mm same footprint)	Same 1.92mm² size but higher dropout and lower PSRR (55dB); no zero-off-mode shutdown	Consider for cost-sensitive volume production where 120mV dropout and absence of deep-sleep mode are acceptable.

Compared with MCP1702T-285I/OT and XC6209F285MR-G, the MIC5302-2.85YMT-TR uniquely combines 1.92mm² footprint, 50mV dropout, zero-off-mode shutdown, and 120µV_RMS noise-making it optimal for space-constrained, battery-powered RF and imaging systems demanding lowest possible noise and dropout.

Availability

MIC5302-2.85YMT-TR is available at Aetrix Electronics and suitable for mobile phone RF power stages, digital camera image sensor bias, and GPS receiver front-end designs requiring stable component supply, RoHS-compliant packaging, and long-term lifecycle support.

Supply support for MIC5302-2.85YMT-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.

The MIC5302 family was designed specifically for ultra-compact, low-noise portable electronics-including cellular RF sections, camera modules, and portable media players-where minimal board area and ultra-low dropout are mandatory.

FAQ

What is the maximum input voltage for MIC5302-2.85YMT-TR?

The MIC5302-2.85YMT-TR supports an absolute maximum input voltage of +6V, but its specified operating range is +2.3V to +5.5V. Exceeding 5.5V may trigger internal protection or cause permanent damage. For reliable operation in battery-powered systems, keep VIN within 2.3V–5.5V, especially when using single-cell Li-ion (2.8V–4.2V) or dual-cell alkaline sources.

Does MIC5302-2.85YMT-TR require an external output capacitor?

Yes, the MIC5302-2.85YMT-TR requires a minimum 1µF X7R or X5R ceramic output capacitor for stability. The datasheet confirms no-load stability and specifies optimal performance with low-ESR ceramics. Using smaller values or high-ESR electrolytics risks oscillation; Y5V/Z5U dielectrics are discouraged due to >50% capacitance drift over temperature.

How does the enable pin function on MIC5302-2.85YMT-TR?

The MIC5302-2.85YMT-TR features an active-high enable (EN) pin (Pin 1) with VIH ≥ 1.1V and VIL ≤ 0.2V. Pulling EN high activates regulation; pulling it low places the device in zero-off-mode, drawing <2µA. The pin must never float-external pull-down or microcontroller GPIO control is required to avoid indeterminate output states.

What thermal considerations apply to MIC5302-2.85YMT-TR in a 150mA application?

At 150mA with 2.85V output and 3.6V input, MIC5302-2.85YMT-TR dissipates ~0.12W. With θ_JA = 173°C/W and T_J(MAX) = 125°C, the maximum ambient temperature is ~104°C for a minimum footprint layout. Adequate EPAD grounding via thermal vias is essential to maintain this rating and prevent thermal shutdown.

Is MIC5302-2.85YMT-TR compatible with lead-free reflow processes?

Yes, MIC5302-2.85YMT-TR is supplied in a Pb-free (RoHS-compliant) Thin MLF® package rated for standard lead-free reflow profiles, including peak temperatures up to 260°C for 5 seconds. The device meets JEDEC J-STD-020 moisture sensitivity level (MSL) requirements for surface-mount assembly.

MIC5302-2.85YMT-TR Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

Output Configuration:: Positive

Output Type:: Fixed

Number of Regulators:: 1

Voltage - Input (Max):: 5.5V

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

Voltage - Output (Max):: -

Voltage Dropout (Max):: 0.1V @ 150mA

Current - Output:: 150mA

Current - Quiescent (Iq):: 120 µA

Current - Supply (Max):: -

PSRR:: 65dB ~ 42dB (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)

MIC5302-2.85YMT-TR FAQ

1.How can I place an order for MIC5302-2.85YMT-TR through Aetrix?

Please submit a Request for Quotation (RFQ) for MIC5302-2.85YMT-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 MIC5302-2.85YMT-TR reliable?

The price and inventory of MIC5302-2.85YMT-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MIC5302-2.85YMT-TR is usually 5 days.

3.What payment methods are accepted for MIC5302-2.85YMT-TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MIC5302-2.85YMT-TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MIC5302-2.85YMT-TR?

MIC5302-2.85YMT-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MIC5302-2.85YMT-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 MIC5302-2.85YMT-TR?

For technical support, including MIC5302-2.85YMT-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MIC5302-2.85YMT-TR requirements.

6.How does Aetrix verify that MIC5302-2.85YMT-TR is sourced from the original manufacturer or authorized distributors?

All MIC5302-2.85YMT-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 MIC5302-2.85YMT-TR meets industry standards.

7.What is the process for return or replacement of MIC5302-2.85YMT-TR?

All MIC5302-2.85YMT-TR units undergo pre-shipment inspection (PSI). If there is an issue with MIC5302-2.85YMT-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 MIC5302-2.85YMT-TR part is unused and in its original packaging.

Return procedure for MIC5302-2.85YMT-TR:

1.Submit a request within 90 days.

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

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