Texas Instruments LT1054CP Voltage Converter Regulator DIP-8, -5V 100mA
Texas Instruments LT1054CP switched-capacitor voltage converter with regulated -5V output up to 100mA, 3.5V to 15V input, in an 8-pin DIP package.
Texas Instruments LT1054CP Voltage Converter Regulator delivers a regulated -5V output up to 100mA from a 3.5V to 15V DC input.
Overview
The Texas Instruments LT1054CP is a switched-capacitor voltage converter with an integrated regulator. It provides a higher output current and lower voltage losses than traditional converters, making it suitable for industrial and measurement systems. An adaptive-switch drive scheme optimises efficiency across a wide range of output currents, supporting reliable performance under light or full load.
Regulation and Voltage Drop
Built-in regulation is a feature not commonly found in standard switched-capacitor converters. By adding an external resistive divider, a tightly regulated output can be achieved that remains stable against variations in input voltage and output current. The typical total voltage drop at a 100mA output is 1.1V across the full supply-voltage range of 3.5V to 15V.
Key Features
- High efficiency through adaptive switching
- Integrated regulation providing a stable -5V output, adjustable externally
- Wide input range of 3.5V to 15V DC
- Output current up to 100mA
- Typical quiescent current of 2.5mA when active
- Shutdown function reduces supply current to 100µA typical
- Supports external oscillator synchronisation and parallel operation for increased current capacity
- Pin-to-pin compatible with LTC1044 and 7660 series converters
- Supplied in a standard 8-pin DIP (Dual In-line Package) for through-hole mounting
Shutdown Mode
The shutdown function is activated by grounding the feedback terminal, reducing the supply current to a typical 100µA for power-saving modes.
Dimensions and Weight
Dimensions (W x D x H): 3.3 x 1.5 x 4.3. Weight: 0.454 gm.
- Power management applications
- Industrial systems
- Measurement systems
- Applications requiring a regulated -5V supply
- Output Voltage: -5V regulated
- Output Current: Up to 100mA
- Input Voltage Range: 3.5V to 15V DC
- Typical Voltage Drop: 1.1V at 100mA output
- Quiescent Current: 2.5mA typical when active
- Shutdown Supply Current: 100µA typical
- Special Feature: Adaptive switching for efficiency across the load range
- Special Feature: Integrated regulation adjustable with an external resistive divider
- Special Feature: External oscillator synchronisation
- Special Feature: Paralleling for increased current capacity
- Compatibility: Pin-to-pin compatible with LTC1044 and 7660 series converters
- Package: 8-pin DIP (Dual In-line Package), through-hole
- Width: 3.3
- Depth: 1.5
- Height: 4.3
- Weight: 0.454 gm
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