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TLE4470

Infineon
Part Number TLE4470
Manufacturer Infineon
Description Dual Low-Drop Voltage Regulator
Published Aug 27, 2016
Detailed Description Dual Low-Drop Voltage Regulator TLE 4470 Features • Stand-by output 180 mA; 5 V ± 2% • Adjustable reset switching thr...
Datasheet PDF File TLE4470 PDF File

TLE4470
TLE4470

Overview
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 VI in the range of 5.
6 V ≤ VI ≤ 45 V to VQ1,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 TLE 4470 use of an external voltage divider the main output voltage can be set to VQ2 ≥ 5 V for the TLE 4470 G type (PG-DSO-20 package).
VQ1 is compared to the voltage at pin ADJ2, which is proportional to the output voltage VQ2.
A control amplifier drives the base of the series PNP transistor via a buffer.
The main output voltage VQ2 is tracked to the accuracy...


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