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TLE4307

Infineon Technologies
Part Number TLE4307
Manufacturer Infineon Technologies
Description Power-Charge-Pump and Low-Drop Voltage Regulator
Published Apr 6, 2011
Detailed Description Power-Charge-Pump and Low-Drop Voltage Regulator TLE 4307 Power Charge Pump Circuit Features • • • • High Current Capa...
Datasheet PDF File TLE4307 PDF File

TLE4307
TLE4307

Overview
Power-Charge-Pump and Low-Drop Voltage Regulator TLE 4307 Power Charge Pump Circuit Features • • • • High Current Capability Short Circuit Protection Overtemperature Protection Active Zener Circuit P-TO252-5-1 Very Low Drop Voltage Regulator Features • • • • • 3.
3 V or 3.
8 V output voltage Low Output Voltage Tolerance High Current Capability 800 mA Short Circuit Protection Overtemperature Protection General Features • Optimized SMD Package Type • TLE 4307 DV33 • TLE 4307 DV38 • New Type Functional Description The TLE 4307 is a monolithic integrated power charge pump with a Low Drop Voltage Regulator.
The power charge pump loads an energy storage capacitor at pin C.
The voltage regulator supplies 3.
3 V or 3.
8 V out of this storage capacitor with up to 800 mA output current.
The TLE 4307 is intended for use with DC supplies for consumer or industrial applications.
Ordering Code Q67006-A9444 Q67006-A9415 Package P-TO252-5-1 (D-PAK) P-TO252-5-1 (D-PAK) www.
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1 1 2000-10-11 TLE 4307 P-TO252-5-1 (D-PAK) GND I C SL Q AEP02792 Figure 1 Pin Configuration (top view) Pin Definitions and Functions Pin No.
1 2 3 4 5 Symbol I C GND SL Q Function Input; Connect to the input voltage source Charge-Pump Output; Connect to the energy reservoir capacitor to GND Ground Slewrate Control Input; a capacitor from this pin to the Input pin I controls the slewrate during recirculation Regulator Output; connect to GND with a capacitor as specified for CQ www.
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1 2 2000-10-11 TLE 4307 TLE 4307 1 Power Charge Pump Very Low-Drop Regulator 5 I Q SL 4 2 C 3 GND AES02793 Figure 2 Block Diagram Circuit Description The TLE 4307 consists of 2 stages, the charge pump and the very low drop voltage regulator.
Charge Pump The power stage is used as a switching element, that is driven by a buffer.
A current source keeps the power stage on.
When the output C of the charge pump reaches VC,off, the power stage is swit...


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