LM3578AN

$0.82

Description：IC REG BUCK BOOST 750MA 8PDIP
Series：-
Mfr：National Semiconductor
Package：Bulk

SKU:b2043dbe479d Category: Voltage Regulators - DC DC Switching Regulators Brand: National Semiconductor

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Product introduction

LM3578AN is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists National Semiconductor. Its product description is IC REG BUCK BOOST 750MA 8PDIP. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for LM3578AN

Description：IC REG BUCK BOOST 750MA 8PDIP
Series：-
Mfr：National Semiconductor
Package：Bulk
Function：Step-Up, Step-Down, Step-Up/Step-Down
Output Configuration：Positive or Negative
Topology：Buck, Boost, Buck-Boost
Output Type：-
Number of Outputs：1
Voltage - Input (Min)：2V
Voltage - Input (Max)：40V
Voltage - Output (Min/Fixed)：-
Voltage - Output (Max)：-
Current - Output：750mA (Switch)
Frequency - Switching：20kHz
Synchronous Rectifier：No
Operating Temperature：0°C ~ 70°C (TA)
Mounting Type：Through Hole
Package / Case：8-DIP (0.300", 7.62mm)
Supplier Device Package：8-PDIP
Grade：-
Qualification：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for LM3578AN

LM3578AN

Voltage Regulators - DC DC Switching Regulators Overview

The LM3578AN is a monolithic switching regulator IC manufactured by National Semiconductor, now under Texas Instruments. It operates with an input voltage range of 2V to 40V and delivers a maximum output current of 0.75A. The device supports boost, buck, and buck-boost topologies with a maximum switching frequency of 24kHz. It utilizes peak current mode control for stable operation. The component is housed in an 8-pin PDSO package with a commercial temperature rating from 0°C to 70°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Supports multiple DC-DC converter topologies including boost, buck, and buck-boost configurations.
Utilizes peak current mode control architecture for enhanced stability and transient response.
Operates within a wide input voltage range suitable for various power supply applications.

Voltage Regulators - DC DC Switching Regulators Applications

Battery-powered equipment requiring efficient voltage conversion
General-purpose DC-DC power supply designs
Industrial control systems utilizing standard voltage rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix and manufacturer status before procurement, as the LM3578 series has been transferred to Texas Instruments. Confirm RoHS compliance and package variations such as AM or AN variants against current datasheets. Check for end-of-life notices or recommended replacement parts like the LM3578AM/NOPB to ensure long-term availability and specification consistency.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a simple, low-cost switching regulator solution with moderate current capabilities. Ensure the design accommodates the 24kHz maximum switching frequency and external component requirements for the chosen topology. Verify that the 0.75A output limit meets load demands and that the operating temperature range aligns with environmental conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

The LM3578 belongs to the legacy National Semiconductor analog mixed-signal portfolio, which was acquired by Texas Instruments. It serves as a fundamental switching regulator alternative to linear regulators in efficiency-critical designs. The part represents an older generation of fixed-frequency PWM controllers widely used in established industrial and consumer electronics hardware.