LTC1157CS8#PBF

Overview

The LTC1157CS8#PBF is a dual MOSFET gate driver manufactured by Analog Devices Inc., designed for high-side and low-side applications. It operates within a supply voltage range of 2.7 V to 5.5 V, with a maximum input voltage of 7 V. The device features two drivers and two outputs in an SOIC-8 surface-mount package. Key electrical parameters include a maximum dead time of 60 µs, a quiescent supply current of 180 µA, and an output voltage of 8.8 V. It functions reliably across a temperature range of 0°C to +70°C.

Feature Summary

• Dual-channel architecture supporting independent high-side and low-side MOSFET control
• Low quiescent current consumption for efficient power management
• Integrated dead-time control to prevent shoot-through conditions

Applications

• High-side and low-side MOSFET switching circuits
• Microprocessor-based power control systems
• DC-DC converter topologies requiring isolated or floating drive signals

Procurement Notes

Verify the specific suffix #PBF confirms lead-free compliance and RoHS standards as per manufacturer documentation. Confirm the SOIC-8 package dimensions match your PCB footprint requirements. Ensure the operating voltage range aligns with your system's logic levels. Check for any recent product change notices that may affect specifications or availability status.

Selection Notes

Select this component when a dual gate driver with low standby current is required for microprocessor-controlled applications. Consider the 2.7 V to 5.5 V supply range compatibility with standard logic families. Evaluate the 60 µs dead time against your switching frequency needs. Compare performance against other drivers in the series if higher voltage ratings are necessary.

Part Context

The LTC1157 belongs to a family of dual MOSFET gate drivers from Analog Devices. It is distinct from buck regulators like the LTC1147 or hot-swap controllers like the LTC1645. The CS8 variant specifically denotes the commercial temperature grade and SOIC-8 package configuration within the broader LTC1157 product line.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.