LTC1502CS8-3.3#PBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC1502CS8-3.3#PBF is a quadrupler charge pump DC/DC converter designed to generate a regulated 3.3V output from a single alkaline cell input. It operates at a switching frequency of 500 kHz and provides a fixed positive output with a maximum current capacity of 10mA. The device is housed in an 8-SOIC package, measuring 0.154 inches (3.90mm) in width. This integrated circuit functions as a step-up regulator, efficiently converting low input voltages into a stable higher voltage suitable for portable applications requiring minimal external components.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Quadrupler charge pump architecture for efficient voltage step-up
• Regulated 3.3V output derived from a single cell source
• Compact 8-pin SOIC surface-mount packaging

Voltage Regulators - DC DC Switching Regulators Applications

• Portable devices powered by single alkaline cells
• Battery-operated systems requiring 3.3V logic levels
• Space-constrained embedded circuits needing simple regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including the suffix #PBF to ensure lead-free compliance and specific packaging configuration. Confirm the manufacturer origin, noting that Analog Devices acquired Linear Technology, which may affect branding on datasheets or documentation. Ensure compatibility with your PCB footprint for the 8-SOIC package before ordering.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a simple, low-component-count solution is required to boost a single-cell battery voltage to a regulated 3.3V rail. It is suitable for applications where moderate current demand around 10mA is sufficient. Consider the 500 kHz switching frequency for EMI management and capacitor selection. It is ideal for cost-sensitive designs prioritizing simplicity over high-efficiency power delivery.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC1502 series of charge pump converters. The CS8 designation indicates the commercial temperature range and SOIC-8 package type. The -3.3 suffix specifies the fixed 3.3V output voltage. The #PBF suffix denotes a lead-free finish compliant with RoHS standards. Analog Devices now manufactures these parts following their acquisition of Linear Technology.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official Analog Devices resources for cross-reference data or verify pin-to-pin compatibility with other single-cell charge pump regulators if alternatives are necessary.