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having leads that are designed to be soldered on the side of a circuit board that the body of the component is mounted on.

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The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.

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Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.

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Occurring at or forming the end of a series, succession, or the like; closing; concluding.

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The center distance from one pole to the next.

What is the Max Supply Voltage ?

In general, the absolute maximum common-mode voltage is VEE-0.3V and VCC+0.3V, but for products without a protection element at the VCC side, voltages up to the absolute maximum rated supply voltage (i.e. VEE+36V) can be supplied, regardless of supply voltage.

What is the Min Supply Voltage ?

The minimum supply voltage (V min ) is explored for sequential logic circuits by statistically simulating the impact of within-die process variations and gate-dielectric soft breakdown on data retention and hold time.

What is the Nominal Supply Current ?

Nominal current is the same as the rated current. It is the current drawn by the motor while delivering rated mechanical output at its shaft.

What is the Quiescent Current ?

The quiescent current is defined as the current level in the amplifier when it is producing an output of zero.

What is the Synchronous Rectifier ?

Synchronous rectification is a technique for improving the efficiency of rectification by replacing diodes with actively controlled switches, usually power MOSFETs or power bipolar junction transistors (BJT).

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RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

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LT1977EFE#3FMPBF

Name: LT1977EFE#3FMPBF
Brand: Linear Technology
Price: 3.22 USD
Availability: InStock
Rating: 5 (56 reviews)

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Manufacturer Linear Technology

Product Number LT1977EFE#3FMPBF

Description HIGH VOLTAGE 1.5A, 500KHZ STEP-D

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$3.22

Price update：a months ago

Available in stock： 190

Serves customers in 45 countries

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Linear Technology

Analog Devices (NASDAQ: ADI), a pioneer in intricate design and fabrication of advanced analog, blended-signal, and digital signal processing (DSP) integrated circuits. Since 1965, they've tackled complex signal processing challenges across global electronic domains. Merged with Maxim Integrated, they offer superior mixed-signal and power management technologies, catering to a digitally connected realm. This alliance couples vast engineering acumen and domain mastery, addressing complexities from DC to 100 GHz, spanning sensors to the cloud.

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DESCRIPTION
The LT® 1977 is a 500kHz monolithic buck switching regulator that accepts input voltages up to 60V. A high efficiency 1.5A, 0.2Ω switch is included on the die along with all the necessary oscillator, control and logic circuitry. Current mode topology is used for fast transient response and good loop stability.
Innovative design techniques along with a new high voltage process achieve high efficiency over a wide input range. Efficiency is maintained over a wide output current range by employing Burst Mode operation at low currents, utilizing the output to bias the internal circuitry, and by using a supply boost capacitor to fully saturate the power switch. Patented circuitry maintains peak switch current over the full duty cycle range.* Shutdown reduces input supply current to less than 1µA. External synchronization can be implemented by driving the SYNC pin with logic-level inputs. A single capacitor from the CSS pin to the output provides a controlled output voltage ramp (soft-start). The device also has a power good flag with a programmable threshold and time-out and thermal shutdown protection.
The LT1977EFE is available in a 16-pin TSSOP package with exposed pad leadframe for low thermal resistance. The LT1976, a 200kHz reduced switch frequency version of the LT1977, is also available. See the Applications Information section for selection criteria between the LT1976 and LT1977.
FEATURES
■ Wide Input Range: 3.3V to 60V
■ 1.5A Peak Switch Current
■ Burst Mode® Operation: 100µA Quiescent Current**
■ Low Shutdown Current: IQ < 1µA
■ Power Good Flag with Programmable Threshold
■ Load Dump Protection to 60V
■ 500kHz Switching Frequency
■ Saturating Switch Design: 0.2Ω On-Resistance
■ Peak Switch Current Maintained Over Full Duty Cycle Range*
■ 1.25V Feedback Reference Voltage
■ Easily Synchronizable
■ Soft-Start Capability
■ Small 16-Pin Thermally Enhanced TSSOP Package
APPLICATIONS
■ High Voltage Power Conversion
■ 14V and 42V Automotive Systems
■ Industrial Power Systems
■ Distributed Power Systems
■ Battery-Powered Systems

Feature

Wide Input Range: 3.3V to 60V
1.5A Peak Switch Current
Burst Mode® Operation: 100µA Quiescent Current
Low Shutdown Current: IQ < 1µA
Power Good Flag with Programmable Threshold
Load Dump Protection to 60V
500kHz Switching Frequency
Saturating Switch Design: 0.2Ω On-Resistance
Peak Switch Current Maintained Over Full Duty Cycle Range
1.25V Feedback Reference Voltage
Easily Synchronizable
Soft-Start Capability
Small 16-Pin Thermally Enhanced TSSOP Package

Applications

High Voltage Power Conversion
14V and 42V Automotive Systems
Industrial Power Systems
Distributed Power Systems
Battery-Powered Systems

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Q: How does SZComponents ensure that LT1977EFE#3FMPBF is genuinely manufactured or distributed by ?
A: Our professional business development department conducts rigorous testing and verification of the qualifications of original manufacturers and agents of . All suppliers must undergo and pass our qualification review before they are allowed to list their LT1977EFE#3FMPBF devices on our platform. We prioritize the sourcing channels and quality of LT1977EFE#3FMPBF products above everything else, ensuring thorough supplier audits so you can make your purchase with utmost confidence.
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A: Due to significant fluctuations in 's inventory, real-time updates are challenging. However, we ensure periodic updates within 24 hours. We recommend confirming your LT1977EFE#3FMPBF order with a SZComponents sales representative or through our online customer service before proceeding with payment.
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Q: What is the process for returns or replacements of LT1977EFE#3FMPBF?
A: We conduct a Pre-Shipment Inspection (PSI) on randomly selected batches from your order to ensure quality before shipment. We will accept returns or replacements of the LT1977EFE#3FMPBF if it does not meet your expectations under the following conditions:
Issues such as incorrect quantities, delivery of wrong items, or obvious external defects are acknowledged by us.
We are informed about the defects within 90 days from the delivery date.
The LT1977EFE#3FMPBF remains unused and in its original packaging.
To initiate a return, please:
Inform us within the 90-day period.
Obtain a Request for Return Authorization.
For more details, refer to our Return & Change Policy.
Q: How can I get support or request datasheets and pin diagrams for LT1977EFE#3FMPBF?
A: For any After-Sales service, including datasheets and pin diagrams for LT1977EFE#3FMPBF, feel free to contact us at [email protected]
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A: Reach out to us by clicking the customer service button at the bottom right corner of our site, submitting an RFQ directly, or using the 'Contact Us' link at the top of our page to email or call us. We guarantee a response to your inquiries within 24 hours.

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