TLE4470_08 Datasheet, PDF (1/24 Pages) Infineon Technologies AG – Dual Low-Drop Voltage Regulator Very low dropout

Dual Low-Drop Voltage Regulator
TLE 4470
Features
• Stand-by output 180 mA; 5 V ± 2%
• Adjustable reset switching threshold
• Main output 350 mA; tracked to the stand-by output
• Low quiescent current consumption in standby mode
• Disable function for main output
• Wide operation range: up to 45 V
• Very low dropout
• Power-On-Reset circuit sensing the stand-by voltage
• Early warning comparator for supply undervoltage
• Output protected against short circuit
• Wide temperature range: -40 °C to 150 °C
• Overtemperature protection
• Overload protection
• Green Product (RoHS compliant)
• AEC Qualified
Functional Description
P-DSO-14-1, -4, -7
PG-DSO-14
P/PG-DSO-20-1,-6,-7,-9,-14,-1
PG-DSO-20
The TLE 4470 is a monolithic integrated voltage
regulator with two very low-drop outputs, a main output Q2 for loads up to 350 mA and
a stand by output Q1 providing a maximum of 180 mA. The device is available in two
packages the PG-DSO-14 and PG-DSO-20. It is designed to supply microprocessor
systems under the severe conditions of automotive applications and is therefore
equipped with additional protection functions against overload, short circuit and
overtemperature. Of course the TLE 4470 can also be used in other applications where
two stabilized voltages are required.
The device operates in the wide junction temperature range of -40 °C to 150 °C.
The stand-by regulator transforms an input voltage V_I in the range of 5.6 V ≤ V_I ≤ 45 V
to V_Q1,nom = 5 V within an accuracy of 2%, whereas the main regulator is adjustable. By
Type
TLE 4470 GS
TLE 4470 G
Data Sheet
Package
PG-DSO-14
PG-DSO-20
1
Rev. 1.2, 2008-03-20