sip12202 Vishay, sip12202 Datasheet
sip12202
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sip12202 Summary of contents
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... Synchronous Step Down Controller DESCRIPTION SiP12202 is a synchronous step down controller designed for use in dc-dc converter circuits requiring output currents as high as 10 amperes. SiP12202 is designed to require a minimum number of external components, simplifying design and layout. It accepts input voltages from 2 5.5 V, providing an adjust- able output with voltage ranging from 0 5.5 V. ...
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... SiP12202 Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Parameter GND IN FB Comp/SD to GND Power Dissipation Maximum Junction Temperature Storage Temperature Notes a. Device mounted with all leads soldered or welded to PC board b. Derate 14 mW/°C above + 85 °C 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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... Analog Ground Indicates that the output voltage is in regulation Input voltage Lowside gate drive Power Ground Connection for the inductor node Highside gate drive Temperature Range - °C Temperature Range - °C SiP12202 Vishay Siliconix Limits - ° Min Typ Max 2.3 2 ...
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... Output voltage drops below the trigger voltage minus a hysteresis. Output Over Current State: The SiP12202 will enter a cycle by cycle over current condition when the voltage on the LX pin falls below V by 300 mV. During the over current condition the ...
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... IN 400 -45 OSCILLATOR FREQUENCY Vs TEMPERATURE 0.615 0.605 0.595 0.585 -45 FEEDBACK THRESHOLD Vs TEMPERATURE SiP12202 Vishay Siliconix Vout = 2.5 V Vin = 5 LOAD CURRENT (A) EFFICIENCY vs LOAD CURRENT Vin = 5.0 V Vin = 2 TEMPERATURE (°C) Vin = 2 5.0 V -10 ...
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... SiP12202 Vishay Siliconix TYPICAL CHARACTERISTICS - 260 - 280 - 300 - 320 - 340 - TEMPERATURE (°C) CURRENT SENSE VOLTAGE Vs TEMPERATURE 0.8 0.6 0 TEMPERATURE (°C) QUIESCENT CURRENT Vs TEMPERATURE TEMPERATURE (°C) SHUTDOWN CURRENT Vs TEMPERATURE www.vishay.com 6 New Product 2.5 2.45 Vin = 2.7 V 2.4 Vin = 5.0 V 2.35 2.3 95 130 ...
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... G Inductor Current 5 A/div 1.5 µH, C Output Voltage Ripple Comp/ V/div V/div OUT Inductor Current 5 A/div SiP12202 Vishay Siliconix V = 500 mV/div OUT Inductor Current 5 A/div 10 µs/div = 220 µ OUT mV/div OUT 1 µs/div = 2.5 V, Load Current = 1 A, OUT = 220 µ ...
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... SiP12202 Vishay Siliconix APPLICATION NOTES Inductor Selection: An inductor is one of the energy storage component in a converter. Choosing an inductor means specifying its size, structure, material, inductance, saturation level, dc-resistance (DR.), and core loss. Fortunately, there are many inductor vendors that offer wide selections with ample specifications and test data, such as Vishay Dale ...
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... R2 PWM Comp R3 0 The SiP12202 uses voltage mode control in conjunction with a high frequency Transconductance error amplifier. The voltage feedback loop is compensated at the Comp/ SD pin, which is the output node of the error amplifier. The feedback loop is generally compensated with (one pole, one zero) network from comp to GND. ...
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... Vishay Siliconix noise levels can be minimized by properly laying out the components. Here are some general guidelines for lay- ing out a step-down converter with the SiP12202. Since power traces in step down converters carry pulsating current, energy stored in trace inductance during the pulse can cause high-frequency ringing with input and output capacitors ...
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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 ...