SI9176DM-T1 Vishay, SI9176DM-T1 Datasheet

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... Si9176 PGND FB SD REF MODE AGND Si9176 Vishay Siliconix D User Selectable PWM, PSM, or AUTO Mode D PSM Frequency w20 kHz for Inaudible Harmonics APPLICATIONS D W-CDMA Cell Phone D PDAs/Palmtop PCs D LCD Modules D Portable Image Scanners D GPS Receivers D Smart Phones D MP3 Players D 3G Cell Phone D Digital Cameras 2 ...

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... Si9176 Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Voltages Referenced to AGND = IN, DD Lx, SD, MODE, FB REF ( GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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... OUT(ESR 3 3 OUT OUT OUT & & mA 3.6 V (not switching GND (not switching FB = GND) OUT OUT Low Si9176 Vishay Siliconix Limits = 4 4.7 mF OUT OUT a b Min Typ Max = 600 150 190 300 300 0.5 0.25 "0.1 "0.1 200 1500 250 250 I ...

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... Si9176DB www.vishay.com 4 PGND AGND MODE 6 Operating Mode V PWM IN Open PSM GND AUTO Standard Lead (Pb)-Free Part Number Part Number Temperature −40 to 85_C Si9176DM-T1 Si9176DM-T1—E3 Temperature Range −40 to 85_C MLP33 L 10 PGND X AGND AGND REF 5 6 MODE Top View Function MLP33 ...

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... IN by minimizing the conduction losses. PWM mode provides low output ripple, fast transient response, and switching frequency synchronization. Output load currents can range from 0 to 600 mA. Si9176 Vishay Siliconix V IN PMOS Current Sense PWM and Pulse ...

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... Si9176 Vishay Siliconix The error amplifier and comparator control the duty cycle of the PMOS MOSFET to continuously force the REF pin and FB pin voltages to be equal. As the input-to-output voltage difference drops, the duty cycle of the PMOS MOSFET can reach 100% to allow system designers to extract the maximum stored energy from the battery ...

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... SDL Indicates V settles to $2% of the final value. OUT PWM Mode V Settling Figure 1. OUT Si9176 Vishay Siliconix mF, Ceramic, Murata GRM42-2X5R106K16 0.01 mF, Vishay VJ0603Y 104KXXAT 4.7 mF, Ceramic, Murata GRM42-6X5R475K16 OUT R = 8.2 kW, Vishay CRCW06031132F kW, Vishay CRCW06032002F 2.2 mH, Toko A914BYW-2R2M 1 Undefined (Load Dependent) Time www.vishay.com 7 ...

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... Si9176 Vishay Siliconix TYPICAL CHARACTERISTICS Auto Mode Efficiency vs. Load 100 3.0 V OUT 1 OUT 100 200 300 Load Current (mA) PSM vs. PWM Efficiency 100 95 PSM 100 200 300 400 Load Current (mA) Auto Mode Efficiency vs. Load Direction 100 Load Decreasing 95 Load Increasing 100 200 ...

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... PSM Mode Light-Load Switching Waveforms 150 mA, MODE = OPEN OUT V/div LX Inductor Current 200 mA/div V OUT (AC-Coupled) 10 mV/div mA, MODE = OPEN OUT 2.0 mS/div Si9176 Vishay Siliconix V/div LX Inductor Current 500 mA/div V OUT (AC-Coupled) 10 mV/div 200 nS/div V/div LX Inductor Current 200 mA/div V OUT ...

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... Si9176 Vishay Siliconix TYPICAL WAVEFORMS (V IN PWM Mode Heavy-Load Switching Waveforms 600 mA, MODE = HIGH OUT 200 nS/div PWM Mode Light-Load Switching Waveforms mA, MODE = HIGH OUT 200 nS/div PSM Mode Light-Load Switching Waveforms, www.vishay.com 1.9 V) OUT PWM Mode Medium-Load Switching Waveforms, ...

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... S-41148—Rev. C, 14-Jun-04 Start-Up V/div 500 mV/div OUT Enable Switching V/div 500 mV/div OUT = 30 mA LOAD V OUT (AC-Coupled) 200 mV/div Mode Pin 1 V/div 100 mS/div Si9176 Vishay Siliconix = 3 1 OUT = LOAD V/div 500 mV/div OUT 20 mS/div = 4 W LOAD V 1 V/div 500 mV/div ...

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... Si9176 Vishay Siliconix TYPICAL LOAD TRANSIENT WAVEFORMS (V Load Transient, Auto Mode LOAD 500 mA, MODE = LOW 10 mS/div www.vishay.com OUT Load Transient, PWM Mode 500 mA 2.2 mH, MODE= HIGH LOAD I , 200 mA /div LOAD V OUT (AC-Coupled) 50 V/div Load Transient (PSM Mode 150 mA 2.2 mH LOAD 100 mS/div = 1 ...

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... Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’ ...