LTC1438IG-ADJ#PBF

DC DC Switching Controllers Overview

The LTC1438IG-ADJ#PBF is a dual synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It operates with an input voltage range of 3.5V to 30V and supports a maximum switching frequency of 400kHz. The device features two positive output channels with adjustable voltage settings, housed in a 28-SSOP package. It includes integrated soft-start, power-on reset, and enable functions, operating within a temperature range of -40°C to 85°C.

DC DC Switching Controllers Feature Summary

• Dual high-efficiency synchronous buck topology for independent channel control
• Integrated low-noise architecture suitable for sensitive analog loads
• Built-in protection and management features including soft-start and power-on reset

DC DC Switching Controllers Applications

• Portable equipment requiring multiple regulated voltage rails
• Industrial systems needing efficient DC-DC conversion
• Communication infrastructure power supplies

DC DC Switching Controllers Procurement Notes

Verify the specific suffix ADJ confirms adjustable output voltage capability rather than fixed variants. Confirm RoHS compliance status matches current manufacturing declarations. Ensure the 28-SSOP package dimensions align with PCB footprint requirements. Check for any recent PCN updates regarding marking or material changes before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this component when dual isolated or non-isolated buck converters are required from a single controller IC. The adjustable output feature allows flexibility in setting rail voltages compared to fixed versions. Consider the 400kHz maximum frequency for balancing component size against transient response needs. Verify that the 30V maximum input voltage covers the system's peak supply conditions.

DC DC Switching Controllers Part Context

This part belongs to the LTC1438 family of dual synchronous step-down regulators. It shares core architecture with fixed-output variants but offers programmable feedback networks for custom voltage levels. The IG suffix indicates the specific temperature grade and package type within the broader product line managed by Analog Devices.

DC DC Switching Controllers Replacement Considerations

LTC1438XCG#PBF is a related variant within the same family, though it may differ in temperature range or specific electrical characteristics. Verify pin compatibility and control logic similarities before substituting. Consult official documentation for exact parameter deviations between these specific part numbers.