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    5. LM2575-3.3BN Microchip

    LM2575-3.3BN [Microchip]

    LM2575-3.3BN
    LM2575-3.3BN

    Part No:

    LM2575-3.3BN

    Category:

    DC/DC Converters

    Manufacturer:

    Microchip

    Description:

    The LM2575 series of monolithic integrated circuits provide all the active functions for a step-down (buck) switching regulator.

    RoHS Status:

    Product FAQ

    1. Is LM2575-3.3BN available for RFQ?

    Yes. LM2575-3.3BN by Microchip is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

    2. Why is there no fixed price for LM2575-3.3BN?

    Pricing for LM2575-3.3BN can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

    3. What are the key specifications of LM2575-3.3BN?

    LM2575-3.3BN is a Microchip DC/DC Converters with Thermal Resistance Junction To Ambient: 65°C/W (TO-220), 85°C/W (DIP), 100°C/W (SOIC) and Saturation Voltage Max: 1.4V. Review the product details or submit an RFQ if you need confirmation before purchase.

    4. How fast can I get a quote for LM2575-3.3BN?

    Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

    5. How soon can LM2575-3.3BN be shipped?

    If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

    6. Can you suggest alternatives to LM2575-3.3BN?

    Yes. If LM2575-3.3BN is unavailable, obsolete, or does not meet your required lead time, we can help check similar Microchip DC/DC Converters parts or compatible alternatives.

    RFQ

    Part Number:

    LM2575-3.3BN

    Manufacturer:

    Microchip

    Looking for Pricing? Contact us for volume pricing.

    IMPORTANT NOTICE

    Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

    Featured Product

    Datasheet:

    Stock Status:

    Available for RFQ

    Pricing:

    Request Volume Pricing

    Quote Response:

    Within 24 Hours

    Shipping:

    In-stock parts ship in 1–2 business days

    Specification

    Type
    Parameter
    Efficiency
    80%
    Output Voltage
    Fixed: 3.3V, 5V, 12V; Adjustable: 1.23V to 37V
    Output Current
    1A
    Operating Temperature
    -40°C ~ +125°C
    RoHS Status
    RoHS Compliant
    Package
    16-Pin Plastic DIP, 24-Pin Wide SOIC, 5-Pin TO-220, 5-Pin TO-263
    RoHS Status
    RoHS Compliant
    Current Limit
    1.7A ~ 3.2A
    Oscillator Frequency
    42kHz ~ 63kHz
    Saturation Voltage Max
    1.4V
    Saturation Voltage Typ
    0.9V
    Standby Current
    200µA
    Supply Voltage
    4V ~ 40V
    Thermal Resistance Junction To Ambient
    65°C/W (TO-220), 85°C/W (DIP), 100°C/W (SOIC)

    Products Detail

    The LM2575 series offers fixed output versions (3.3V, 5V, 12V) and adjustable versions (1.23V to 37V). It delivers 1A output current with excellent line/load regulation, requires minimal external components, and features internal frequency compensation and a fixed-frequency oscillator. It provides high-efficiency replacement for linear regulators, reducing heat sink requirements. Key specifications include ±3% output voltage tolerance (fixed), ±2% feedback voltage tolerance (adjustable), 52kHz oscillator, low standby current (<200µA), and protection features like thermal shutdown and current limiting.

    Key Features

    • Fixed output versions: 3.3V, 5V, 12V
    • Adjustable output: 1.23V to 37V
    • ±3% max output voltage (fixed)
    • ±2% max feedback voltage (adjustable)
    • 1A guaranteed output current
    • Input voltage range: 4V to 40V
    • Requires only 4 external components
    • 52kHz fixed frequency oscillator
    • Low power standby mode <200µA
    • Efficiency typically >80%
    • Uses standard inductors
    • Thermal shutdown and current limit protection

    Application scenarios

    • Simple high-efficiency step-down (buck) regulator
    • Efficient pre-regulator for linear regulators
    • On-card switching regulators
    • Positive to negative converter (inverting Buck-Boost)
    • Isolated flyback converter
    • Negative boost converter

    Documents

    Datasheets:

    LM2575
    Shipping & Warranty

    Fast Dispatch: Ships in 5-7 days(in-stock parts within 1-2 days)

    Unishop Global Export: 1-7 days, $40.00

    Guaranteed Delivery: Door-to-door in 30 days

    Compliant Worldwide Shipping: DHL, FedEx, SF, and UPS.

    Feature

    • 30-Day Guarantee
      30-Day Guarantee
    • Fasted Delivery
      Fasted Delivery
    • Hassle-Free Returns
      Hassle-Free Returns
    • Secure payment method
      Secure payment method
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