Texas Instruments LT1054CP Voltage Converter Regulator DIP-8, -5V 100mA

The Texas Instruments LT1054CP is a high-performance switched-capacitor voltage converter with an integrated regulator, designed to deliver superior efficiency and functionality in power management applications. It provides a higher output current and significantly lower voltage losses than traditional converters, making it an ideal choice for demanding industrial and measurement systems. An adaptive-switch drive scheme optimises efficiency across a wide range of output currents, ensuring reliable performance whether under light or full load.

A key advancement is its built-in regulation capability, a feature not commonly available in standard switched-capacitor converters. By adding an external resistive divider, a tightly regulated output can be achieved, which remains stable against variations in both input voltage and output current. The typical total voltage drop at a 100mA output is just 1.1V across the full supply-voltage range of 3.5V to 15V. The device also features a shutdown function, activated by grounding the feedback terminal, which reduces the supply current to a typical 100µA for power-saving modes.

Key Features & Specifications

• High Efficiency: Adaptive switching minimises losses for optimal performance.
• Integrated Regulation: Provides a stable -5V output that can be further adjusted externally.
• Wide Input Range: Operates from 3.5V to 15V DC input.
• Output Current: Supports up to 100mA maximum.
• Low Quiescent Current: Typically only 2.5mA when active.
• Shutdown Mode: Reduces supply current to 100µA typical.
• Flexible Configuration: Supports external oscillator synchronisation and can be paralleled with other devices for increased current capacity.
• Compatibility: Pin-to-pin compatible with LTC1044 and 7660 series converters.
• Package: Supplied in a standard 8-pin DIP (Dual In-line Package) for through-hole