LT1461-2.5

Features:

Trimmed to High Accuracy: 0.04% Max
Low Drift: 3ppm/°C Max
Low Supply Current: 50µA Max
Temperature Coefficient Guaranteed to 125°C
High Output Current: 50mA Min
Low Dropout Voltage: 300mV Max
Excellent Thermal Regulation
Power Shutdown
Thermal Limiting
Operating Temperature Range: 40°C to 125°C
Available in SO-8 Package


Application

A/D and D/A Converters
Precision Regulators
Handheld Instruments
Power Supplies


Pinout




Specifications

Input Voltage ........................................................... 20V
Output Short-Circuit Duration .........................  Indefinite
Operating Temperature Range
(Note 2) ...........................................     40°C to 125°C
Specified Temperature Range
Commercial ............................................      0°C to 70°C
Industrial ...........................................      40°C to 85°C
High.................................................      40°C to 125°C
Storage Temperature Range (Note 3) ...65°C to 150°C
Lead Temperature (Soldering, 10 sec) ................. 300°C


Description

The LT® 1461 is a low dropout micropower bandgap reference that combines very high accuracy and low drift with low supply current and high output drive. This series reference uses advanced curvature compensation techniques to obtain low temperature coefficient and trimmed precision thin-film resistors to achieve high output accuracy. The LT1461 draws only 35µA of supply current, making it ideal for low power and portable applications, however its high 50mA output drive makes it suitable for higher power requirements, such as precision regulators.

In low power applications, a dropout voltage of less than 300mV ensures maximum battery life while maintaining full reference performance. Line regulation of T1461 is nearly immeasur- able, while the exceedingly good load and thermal regulation will not add significantly to system error budgets. The shutdown feature can be used to switch full load currents and can be used for system power down. Thermal shutdown protects the part from overload conditions.