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TPS40193 Fiches technique(PDF) 1 Page - Texas Instruments |
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TPS40193 Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 38 page 1 FEATURES CONTENTS DESCRIPTION APPLICATIONS 1 2 3 4 10 9 8 7 HDRV SW BOOT LDRV ENABLE FB COMP VDD TPS40192/3 5 6 BP5 PGD 11 GND UDG−06063 VOUT ON/OFF External Logic Supply 5V or Less, or BP5 VIN VOUT TPS40192, TPS40193 SLUS719B – MARCH 2007 – REVISED SEPTEMBER 2007 www.ti.com 4.5-V TO 18-V INPUT 10-PIN SYNCHRONOUS BUCK CONTROLLER WITH POWER GOOD • Input Operating Voltage Range: 4.5 V to 18 V Device Ratings 3 • Up to 20-A Output Currents Electrical Characteristics 4 • Supports Pre-Biased Outputs Typical Characteristics 6 • 0.5% 0.591-V Reference • 600 kHz (TPS40192) and 300 kHz (TPS40193) Terminal Information 9 Switching Frequencies Application Information 11 • Three Selectable Thermally Compensated Design Example 17 Short Circuit Protection Levels Additional References 27 • Hiccup Restart from Faults • Internal 5-V Regulator • High and Low side FET RDS ON Current Sensing TPS40192 and TPS40193 are cost-optimized synchronous buck controllers that operate from 4.5 V • 10-Pin 3 mm × 3 mm SON Package to 18 V input. These controllers implement a • Internal 4-ms Soft-Start Time voltage-mode control architecture with the switching • Thermal Shutdown Protection at 145°C frequency fixed at either 600 kHz (TPS40192) or 300 kHz (TPS40193). The higher switching frequency facilitates the use of smaller inductor and output capacitors, thereby providing a compact • Cable Modem CPE power-supply solution. An adaptive anti-cross • Digital Set Top Box conduction scheme is used to prevent shoot through • Graphics/Audio Cards current in the power FETs. • Entry Level and Mid-Range Servers SIMPLIFIED APPLICATION DIAGRAM 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2007, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
Numéro de pièce similaire - TPS40193 |
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Description similaire - TPS40193 |
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