LT1054ISW#PBF

Voltage Regulators - DC DC Switching Regulators Overview

The LT1054ISW#PBF is a monolithic, bipolar switched-capacitor voltage converter and regulator manufactured by Analog Devices Inc. It operates within an input voltage range of 3.5 V to 15 V and delivers an output current of 100 mA. The device features an adjustable output voltage with a typical total voltage loss of 1.1 V at full load. It includes an internal oscillator running at a nominal frequency of 25 kHz, which supports external synchronization. The component is housed in a 16-pin SOIC package and is designed for operation across a temperature range of -40°C to +100°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated reference and error amplifier enables precise regulation against input voltage and load variations.
• Adaptive switch driver scheme optimizes efficiency across a wide range of output currents.
• External shutdown capability allows supply current reduction to less than 100 µA when grounded.

Voltage Regulators - DC DC Switching Regulators Applications

• Digitally programmable negative power supplies
• Basic voltage inversion and regulation circuits
• Regulated negative multiplier applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix ISW#PBF to confirm the industrial temperature grade and tube packaging format. Ensure compatibility with existing PCB footprints for the 16-lead SOIC package. Confirm that the 100 mA output current meets the design requirements for the intended application load.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a regulated switched-capacitor solution is required over unregulated converters like the LTC1044. It is suitable for designs needing low voltage drop and high efficiency at moderate currents. Consider the 25 kHz switching frequency for noise-sensitive applications or use the sync pin if higher frequencies are needed.

Voltage Regulators - DC DC Switching Regulators Part Context

The LT1054 series represents an advancement over earlier switched-capacitor converters by integrating regulation capabilities. It maintains pin compatibility with legacy devices such as the ICL7660 while offering superior performance metrics including higher output current and lower voltage losses.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LT1054L variant offers similar functionality but is restricted to a 3.5 V to 7 V input range. For unregulated alternatives, the LTC1044 provides pin-compatible basic conversion without the integrated regulation feature.