LT1072CN8#PBF

Voltage Regulators - DC DC Switching Regulators Overview

The LT1072CN8#PBF is a monolithic high-power switching voltage regulator manufactured by Analog Devices Inc. It operates with input voltages ranging from 3V to 40V and provides an adjustable output voltage starting at 1.25V, with a maximum switch voltage rating of 65V. The device delivers a switch current of 1.25A and functions at a switching frequency of 40kHz. It draws only 6mA of quiescent current and supports multiple topologies including buck, boost, Cuk, flyback, forward, and inverting configurations. The component is housed in an 8-PDIP package and is rated for junction temperatures between 0°C and 100°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports all standard switching configurations including buck, boost, flyback, forward, inverting, and Cuk topologies
• Integrates a high-current, high-efficiency power switch with complete oscillator, control, and protection circuitry on a single die
• Operates with low quiescent current consumption while maintaining high efficiency across the input voltage range

Voltage Regulators - DC DC Switching Regulators Applications

• Positive to negative buck-boost converter circuits
• Negative to positive buck-boost converter designs
• General purpose DC-DC conversion requiring versatile topology support

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix CN8 indicates the commercial temperature grade (0°C to 100°C) rather than the industrial grade (-40°C to 125°C). Confirm the 8-PDIP package dimensions match your PCB footprint requirements. Ensure the 40V maximum input voltage limit aligns with your system's supply rails, as other variants may support higher voltages.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a versatile regulator supporting multiple topologies is required within a through-hole package. The 1.25A switch current capability suits moderate power applications. Consider the 40V input limit; if higher input voltages are needed, verify if the LT1072HV variant is more appropriate. The commercial temperature range must be sufficient for the intended operating environment.

Voltage Regulators - DC DC Switching Regulators Part Context

The LT1072 series consists of monolithic high-power switching regulators designed for flexibility in power supply design. The CN8#PBF designation specifically identifies the commercial grade version in an 8-pin PDIP package. This component belongs to a family known for integrating the power switch and control logic, simplifying external component count compared to discrete solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LT1072CS8#PBF offers the same functionality in an SOIC-8 surface-mount package with a commercial temperature range. LT1072IN8#PBF provides the same specifications in a larger DIP-8 package. For higher voltage inputs up to 60V, consider the LT1072HVIT#PBF or LT1072HVCS#PBF variants.