LTC1702IGN#PBF

DC DC Switching Controllers Overview

The LTC1702IGN#PBF is a dual switching regulator controller optimized for high efficiency with low input voltages. It integrates two complete synchronous buck controllers on a single chip, operating at a fixed 550kHz switching frequency. The device supports an input voltage range of 3V to 7V and provides two independent positive outputs. In typical configurations, it can deliver up to 10A on one phase and 3A on the other from a 5V logic supply, achieving efficiencies around 90%. It utilizes a 24-lead SSOP package.

DC DC Switching Controllers Feature Summary

• Dual synchronous buck controller architecture for high-efficiency power conversion
• Fixed 550kHz switching frequency operation
• Integrated control loops for two independent output channels
• Optimized for low input voltage applications

DC DC Switching Controllers Applications

• Dual-rail power supplies for digital logic systems
• Point-of-load regulation in telecommunications equipment
• Power distribution networks requiring multiple voltage levels
• Embedded systems with mixed voltage requirements

DC DC Switching Controllers Procurement Notes

Verify the specific suffix (PBF) indicates lead-free compliance when sourcing. Confirm the package type matches the design footprint, as this component uses a 24-lead SSOP. Ensure the supplier is an authorized distributor for Analog Devices Inc. to guarantee authenticity. Check the latest datasheet for any updates regarding recommended operating conditions or thermal performance specifications before finalizing procurement.

DC DC Switching Controllers Selection Notes

Select this controller when designing a compact dual-output DC/DC converter requiring high efficiency at moderate currents. It is suitable for applications needing two regulated rails from a single input source, such as 5V to 1.8V and 3.3V. Consider the 550kHz frequency for balancing component size and EMI. Ensure external MOSFETs are selected to handle the required current loads for each phase independently.

DC DC Switching Controllers Part Context

This part belongs to the LTC1702 family of dual synchronous switching regulators. It is manufactured by Analog Devices Inc., formerly Linear Technology. The device is designed to simplify the design of multi-phase or dual-output power supplies by integrating both control loops into a single IC, reducing board space and component count compared to using separate single-channel controllers.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other variants within the LTC1702 series, such as LTC1702ACGN#PBF or LTC1702CGN#PBF, which share the same functional pinout and electrical characteristics but may differ in temperature grade or packaging quantity. Verify that any replacement maintains the 24-SSOP package and 550kHz operation frequency.