LTC3538EDCB

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3538EDCB is an 800mA synchronous Buck-Boost DC/DC converter manufactured by Analog Devices Inc. It operates with an input voltage range of 2.7V to 5.5V and provides a regulated output voltage adjustable from 1.2V to 5.5V. The device integrates high-side and low-side N-channel power switches, supporting continuous inductor current mode operation at a fixed switching frequency of 1.1MHz. It features a wide input voltage range that accommodates single-cell lithium-ion batteries or two-series alkaline cells.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous Buck-Boost topology for efficient voltage regulation across input/output transitions
• Integrated high-side and low-side N-channel power switches
• Fixed 1.1MHz switching frequency for compact external component sizing
• Wide input voltage range suitable for single-cell Li-Ion or multi-cell battery applications

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronics powered by single-cell lithium-ion batteries
• Systems requiring stable output voltage during battery discharge cycles
• Industrial handheld instruments with varying supply voltages
• Medical devices utilizing single-cell battery sources

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'EDCB' corresponds to the DFN-10 package variant when sourcing. Confirm manufacturing origin matches Analog Devices Inc. specifications. Ensure RoHS compliance documentation aligns with current regulatory requirements. Cross-reference the full part number against official distributor catalogs to avoid counterfeit components. Validate lot traceability if required for quality assurance protocols.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltage fluctuates around the desired output level, necessitating both buck and boost capabilities. The integrated switch design reduces external BOM compared to discrete solutions. Consider the 1.1MHz frequency for balancing efficiency and passive component size. Ensure thermal management supports the 800mA continuous load within the DFN-10 footprint constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

The LTC3538 series belongs to Linear Technology's (now Analog Devices) portfolio of micropower synchronous converters. This family targets portable applications where space and efficiency are critical. The ED CB designation indicates a specific thermal and mechanical package configuration distinct from other variants like the IMS or MS packages found in related models.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LTC3538EDCB-TR is the tape-and-reel version of the same functional device. Direct substitutes include the LTC3532 for lower current applications or the LTC3440 for micropower needs. Verify pin compatibility and thermal performance before substituting with non-Analog Devices alternatives.