LTC1046CN8#PBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC1046CN8#PBF is a monolithic CMOS switched capacitor voltage converter manufactured by Analog Devices Inc. It operates with an input voltage range of 1.5 V to 6 V and delivers up to 50 mA of output current. The device achieves 97% efficiency and functions as an inductorless DC-to-DC converter, supporting inversion, step-up, and step-down topologies. It utilizes a 30 kHz switching frequency and draws 165 uA of operating supply current. The component is housed in an 8-pin PDIP package and supports operation from -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Provides high-efficiency voltage conversion without requiring external inductors
• Offers flexible topology support for inversion, step-up, and step-down applications
• Delivers increased output current capability compared to legacy ICL7660/LTC1044 devices

Voltage Regulators - DC DC Switching Regulators Applications

• Replacing ICL7660 or LTC1044 in 5V applications requiring higher output current
• Precision voltage divider circuits
• Voltage doubler configurations

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix CN8#PBF against official Analog Devices documentation to confirm the commercial temperature grade and PDIP packaging variant. Ensure compatibility with existing PCB footprints designed for standard 8-pin DIP packages. Confirm that the required 50 mA load does not exceed thermal limits under maximum ambient conditions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when an inductorless solution is preferred over magnetic converters to reduce size and EMI. It is suitable for designs needing moderate current drive at low voltages. Consider the 30 kHz switching frequency for noise-sensitive environments where lower frequencies are manageable. Evaluate the 165 uA quiescent current against battery life requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

The LTC1046 belongs to a family of switched capacitor voltage converters designed for low-power, space-constrained applications. Unlike traditional charge pumps, it integrates control logic and power switches on a single CMOS die. This integration simplifies design by eliminating external timing components and inductors, making it distinct from inductive switching regulators.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Officially documented direct pin-compatible replacements include the ICL7660 and LTC1044, though these typically offer lower output current capabilities.