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TLE4470GS Datasheet(PDF) 1 Page - Siemens Semiconductor Group |
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TLE4470GS Datasheet(HTML) 1 Page - Siemens Semiconductor Group |
1 / 22 page P-DSO-14-4 P-DSO-20-6 Dual Low-Drop Voltage Regulator TLE 4470 Semiconductor Group 1 1998-11-01 Functional Description 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 both the P-DSO-14-4 and P-DSO-20-6 packages. It is designed to supply microprocessor systems under the severe conditions of automotive applications and is therefore equipped with additional protection functions against over load, short circuit and over temperature. Of course the TLE 4470 can also be used in other applications where two stabilized voltages are required. The device operates in the wide 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 ≤ VI ≤ 45 V to V Q1rated = 5 V within an accuracy of 2%, whereas the main regulator is adjustable. By use of an external voltage divider the main output voltage can be set to V Q2 ≥ 5 V for the Type Ordering Code Package TLE 4470 GS Q67006-A9309 P-DSO-14-4 (SMD) TLE 4470 G Q67006-A9308 P-DSO-20-6 (SMD) 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 • Over-temperature protection • Over-load protection |
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