TLE4473GV55-2 Datasheet, PDF (1/16 Pages) Infineon Technologies AG – Dual Low Drop Voltage Regulator

Dual Low Drop Voltage Regulator
TLE 4473 GV55-2
Features
• Stand-by output 190 mA; 5 V ± 2%
• Main output: 300 mA, 5 V
tracked to the stand-by output
• Low quiescent current consumption
• Disable function separately for both outputs
• Wide operation range: up to 42 V
• Very low dropout voltage
• 2 independent reset circuits
• Watchdog
• Output protected against short circuit
• Wide temperature range: -40 °C to 150 °C
• Overtemperature protection
• Overload protection
P-DSO-12
Functional Description
The TLE 4473 is a monolithic integrated voltage regulator with two very low drop outputs,
a main output Q1 for loads up to 300 mA and a stand by output Q2 providing a maximum
of 190 mA. The stand-by regulator transforms an input voltage V_I in the range of 5.6 V ≤
V_I ≤ 42 V to V_Q2 = 5.0 V (±2%) output voltage. The main output is tracked to the stand by
output voltage and provides also 5 V. Versions of the device with 5 V/3.3 V and 5 V/2.6 V
are available, please refer to the data sheet TLE 4473 G V53/TLE 4473 G V52. Two
Inhibit Pins allow to use either both output voltages or to disable only Q1 or to switch off
both outputs, the latter causing the current consumption to drop below 1 µA. The
TLE 4473 is designed to supply microprocessor systems and sensors under the severe
conditions of automotive applications and is therefore equipped with additional
protection functions against overload, short circuit and overtemperature. The device
operates in the wide junction temperature range of -40 °C to 150 °C.
Type
TLE 4473 GV55-2
Target Data Sheet
Ordering Code
on request
Package
P-DSO-12-4
1
Marking
TLE4473GV55-2
Rev. 0.2, 2005-07-26