LTC1258-2.5

Features:

200mV Max Dropout at 10mA Output Current
4A Typical Quiescent Current
0.15% Max Initial Accuracy
No Output Capacitor Required
Output Sources 10mA, Sinks 2mA
40ppm/°C Max Drift Over Commercial Temp Range
Load Regulation Over Temperature
  0.1mV/mA, Source up to 10mA
  1.75mV/mA, Sink up to 2mA
2.7V to 12.6V Supply Voltage Range


Application

Battery Powered Systems
Hand-Held Instruments
Precision Power Supply
A/D and D/A Converters


Pinout




Specifications

Supply Voltage ........................................................ 13V
Input Voltages ........................................................ 0.3V to 13V
Output Voltages ..................................................... 0.3V to 13V
Output Short Circuit Duration ................................. Indefinite
Operating Temperature Range ............................... 0°C to 70°C
Storage Temperature Range (Note 1) ....................65°C to 150°C
Lead Temperature (Soldering, 10 sec).................... 300°C


Description

The LTC^®1258-2.5 is a micropower bandgap reference that combines high accuracy and low drift with very low supply current and small package size. The combination of ultralow quiescent current and low dropout voltage of only 200mV max makes it ideal for battery powered equipment.

This reference uses curvature compensation to obtain low temperature coefficient and trimmed thin-film resistors to achieve high output accuracy. The reference can supply up to 10mA and sink up to 2mA, making it ideal for precision regulator applications. The LTC1258-2.5 is stable without an output bypass capacitor, but also is stable with capacitance up to 1mF. This feature is important in critical applications where PC board space is a premium and fast settling is demanded.

Series references provide power dissipation advantages over shunt references. In addition to supply current, shunt references must also idle the entire load current to operate.

The LTC1258-2.5 is available in the 8-pin SO package.