LTC3787MPGN

DC DC Switching Controllers Overview

The LTC3787MPGN is a PolyPhase synchronous boost controller manufactured by Analog Devices Inc. It integrates two independent channels to reduce output ripple and improve transient response through interleaved switching. The device operates with an input voltage range of 4.5V to 38V and supports output voltages up to 60V. Key electrical parameters include a switching frequency between 105kHz and 760kHz, a maximum duty cycle of 96%, and a supply voltage range of 4.5V to 38V. It features ±1% reference voltage accuracy and supports both RSENSE and inductor DCR current sensing methods.

DC DC Switching Controllers Feature Summary

• Integrates two independent PolyPhase channels for inherent ripple reduction and improved transient response via interleaved switching
• Supports flexible current sensing using either external sense resistors or inductor DC resistance (DCR)
• Provides high-precision regulation with a ±1% accurate 1.200V reference voltage
• Features synchronous rectification capability for enhanced efficiency in boost converter applications

DC DC Switching Controllers Applications

• High-power density point-of-load (POL) converters
• Industrial power supplies requiring low output ripple
• Telecommunications infrastructure power systems
• Automotive electronics demanding robust transient performance

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'MPGN' indicates military-grade qualification or extended temperature range compared to standard commercial variants. Confirm package type is 28-SSOP as indicated by distributor data. Ensure compatibility with your PCB footprint and thermal requirements before ordering. Check for RoHS compliance status if required by your manufacturing standards.

DC DC Switching Controllers Selection Notes

Select this component when designing boost converters requiring dual-phase interleaving to minimize input and output current ripple. It is suitable for applications needing precise voltage regulation with high accuracy. Consider the 60V output limit and 38V input range when defining system constraints. Evaluate the need for DCR sensing versus external resistor sensing based on cost and board space limitations.

DC DC Switching Controllers Part Context

The LTC3787 series includes various configurations such as the LTC3787IUFD and LTC3787MPGN. While some variants offer PMBus interfaces, the MPGN version focuses on analog control with PolyPhase capabilities. It belongs to Analog Devices' portfolio of high-performance switching regulators designed for demanding industrial and automotive environments.

DC DC Switching Controllers Replacement Considerations

The LTC3787MPGN may be substituted with other PolyPhase boost controllers from Analog Devices, such as the LTC3784, which shares similar topology and voltage ratings. Verify pinout compatibility and control loop stability when replacing components. Cross-reference datasheets to ensure equivalent switching frequency ranges and current sensing methods.