LTC1144IS8#PBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC1144IS8#PBF is a CMOS switched-capacitor voltage converter manufactured by Analog Devices Inc., housed in an 8-SOIC surface-mount package. It operates as a boost or charge pump topology with a wide input voltage range of 2 V to 18 V. The device provides a single output capable of delivering up to 50 mA, with configurable fixed ratios including -Vin, 2Vin, and Vin/2. It features a low shutdown current of 8 µA and supports a switching frequency between 4 kHz and 10 kHz. The component functions within an ambient temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports multiple voltage conversion ratios including inversion, doubling, and halving via external configuration
• Integrates a shutdown mode for significant power reduction during inactive periods
• Utilizes a compact 8-lead SOIC surface-mount package for space-constrained designs

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered equipment requiring negative rail generation
• RS-232 communication interface circuits needing dual polarity supplies
• Industrial control systems utilizing single-supply operation with level shifting

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix designation against official Analog Devices documentation to ensure correct package type and thermal rating. Confirm RoHS compliance status through the manufacturer's latest environmental declarations. Cross-reference the ordering part number with authorized distributor catalogs to validate availability and authenticity before finalizing procurement plans.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits that require flexible voltage scaling from a single source without inductors. Evaluate the 50 mA output capability against peak load requirements to prevent regulation loss. Consider the 4 kHz to 10 kHz switching frequency range for applications sensitive to electromagnetic interference or requiring minimal acoustic noise.

Voltage Regulators - DC DC Switching Regulators Part Context

This integrated circuit belongs to the LTC1144 series of switched-capacitor regulators. It serves as a passive energy transfer solution distinct from inductive DC-DC converters. The IS8 variant specifically denotes the industrial temperature grade and SOIC-8 footprint, differentiating it from other package options like PDIP.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LTC1144IN8#PBF