SI9172 Vishay, SI9172 Datasheet
SI9172
Related parts for SI9172
SI9172 Summary of contents
Page 1
... D Integrated UVLO and POR D Integrated Soft-Start The Si9172 is a dual-mode power adjustable output converter. When it is set to PSM mode, the Si9172 operates as a pulse- skipping-modulation controlled step-down (buck) converter with a dynamically adjustable output has an integrated MOSFET, capable of supplying a minimum 170-mA load current with a 1 ...
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... Si9172 Vishay Siliconix BP/PSM, ENABLE ADJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Peak Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied ...
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... GND 8 Si9172BH- REF 6 Eval Kit Si9172DB Function 90% V OUT DELAY SS FIGURE 1. Si9172 Vishay Siliconix Temperature Range Package _ _ –25_C to 85_C Tape and Reel Temperature Range Board Type Surface Mount –25_C to 85_C . t = Start-Up Delay Time DELAY t = Soft-Start Time SS www.vishay.com 3 ...
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... Si9172 Vishay Siliconix V IN Reference Generator REF BP/PSM ENABLE ADJ + – FB 1.1 V www.vishay.com 4 New Product UVLO POR BP PSM/BP Controller PSM Driver V ADJ Turn-On Zero Current Control Detect Turn off Control Peak Current Comparater GND – + – 0.3 A Document Number: 71379 ...
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... IC is decreased to less than shutting off most of the circuits. A logic high enables the controller and starts up as described in the “Start-Up” section above. Reference The reference voltage of the Si9172 is set to 1.215 internally connected to the non-inverting inputs of the error amplifier. A 0.1-mF decoupling capacitor is required at the V pin. ...
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... Si9172 Vishay Siliconix V Current vs 220 PSM Mode 200 180 160 140 120 100 Voltage ( vs. V DS(on) 220 85_C 180 25_C 140 –25_C 100 (V) IN www.vishay.com 6 New Product _ Voltage 3.6 2.9 2.2 BP Mode 1 100 Threshold vs. ADJ Voltage ...
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... Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right ...