LT1175IT-5 Description
The LT?1175 is a negative micropower low dropout regulator. It features a 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. Several new features make the LT1175 very user-friendly. The SHDN pin can interface directly with either positive or negative logic levels. The current limit is user-selectable at 200mA, 400mA, 600mA, and 800mA. The output can be forced to reverse voltage without damage or latch-up. Unlike some earlier designs, the increase in quiescent current during a dropout condition is actively limited.
LT1175IT-5 Features
Operating Current: 45pA
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 S0 Packages, 3-lead
SOT-223, 5-Pin Surface Mount DD, and Through-Hole
T0-220 Packages
LT1175IT-5 Applications
Analog Systems
Modems
Instrumentation
A/D and D/A Converters
Interface Drivers
Battery-Powered Systems
