LM2577S-ADJ

$6.02

Description：LM2577 SIMPLE SWITCHER 3.5V TO 4
Series：*
Mfr：National Semiconductor
Package：Bulk

SKU:87671c695119 Category: Voltage Regulators - DC DC Switching Regulators Brand: National Semiconductor

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Product introduction

LM2577S-ADJ is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists National Semiconductor. Its product description is LM2577 SIMPLE SWITCHER 3.5V TO 4. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM2577S-ADJ

Description：LM2577 SIMPLE SWITCHER 3.5V TO 4
Series：*
Mfr：National Semiconductor
Package：Bulk
Function：-
Output Configuration：-
Topology：-
Output Type：-
Number of Outputs：-
Voltage - Input (Min)：-
Voltage - Input (Max)：-
Voltage - Output (Min/Fixed)：-
Voltage - Output (Max)：-
Current - Output：-
Frequency - Switching：-
Synchronous Rectifier：-
Operating Temperature：-
Mounting Type：-
Package / Case：-
Supplier Device Package：-
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Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM2577S-ADJ

LM2577S-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2577S-ADJ is a step-up (boost) or flyback switching voltage regulator manufactured by National Semiconductor, now part of Texas Instruments. It operates with an input voltage range up to 40 V and delivers a maximum output current of 3 A. The device features an adjustable output voltage ranging from 1.23 V to 37 V. It utilizes a fixed internal switching frequency of approximately 52 kHz. The component is housed in a TO-263 surface-mount package and is rated for operation within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated monolithic power switch capable of handling high current loads without external components.
Supports multiple converter topologies including boost, flyback, and SEPIC configurations.
Includes internal frequency compensation and thermal shutdown protection for stable operation.

Voltage Regulators - DC DC Switching Regulators Applications

Step-up DC-DC conversion for battery-powered systems
Flyback converters in isolated power supplies
Negative voltage generation circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation carefully, as National Semiconductor was acquired by Texas Instruments. Ensure the suffix matches the required package type and lead-free status. Confirm that the specific revision aligns with your design requirements, as older stock may differ from current TI production runs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust, single-inductor solution is needed for boosting voltages up to 3 A. Consider the thermal performance of the TO-263 package under full load conditions. Verify that the input voltage source can support the peak currents required during startup and transient events.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2577 series of simple switcher regulators. It is functionally similar to the LM2576 but configured for non-inverting step-up applications rather than buck conversion. The 'S' indicates the surface-mount TO-263 package variant.