ADI LT1175CS8-5

负-20V500mA

Overview

The LT1175CS8 is a negative micropower low dropout regulator. It features 45μA quiescent current, dropping to 10μA in shutdown. A new reference amplifier topology gives precision DC characteristics along with the ability to maintain good loop stability with an extremely wide range of output capacitors. Very low dropout voltage and high efficiency are obtained with a unique power transistor anti-saturation design. Adjustable and fixed 5V versions are available.

The LT1175CS8 has complete blowout protection with current limiting, power limiting and thermal shutdown. Special attention was given to the problem of high temperature operation with micropower operating currents, preventing output voltage rise under no-load conditions. The LT1175CS8 is available in 8-pin PDIP and SO packages, 3-lead SOT-223 as well as 5-pin surface mount DD and through-hole TO-220 packages. The 8-pin SO package is specially constructed for low thermal resistance.

Features

• Operating Current: 45μA

• Adjustable Current Limit

• Low Voltage Linear Dropout Characteristics

• Stable with a Wide Range of Output Capacitors

• Shutdown Current: 10μA

• Positive or Negative Shutdown Logic

• Fixed 5V and Adjustable Versions

• Tolerates Reverse Output Voltage

• Available in 8-pin PDIP and SO Packages, 3-lead

• SOT-223, 5-Pin Surface Mount DD and Through-Hole TO-220 Packages

Applications

Analog Systems

Modems

Instrumentation

A/D and D/A Converters

Interface Drivers

Battery-Powered Systems