SI91821 Vishay Siliconix, SI91821 Datasheet
SI91821
Related parts for SI91821
SI91821 Summary of contents
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... The Si91821 also includes an out-of-regulation error flag. When the output voltage is 5% below its nominal output voltage, the error flag output goes low. The Si91821 is available in both standard and lead (Pb)-free MSOP-8 packages and is specified to operate over the industrial temperature range of − _C. ...
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... Si91821 Vishay Siliconix ABSOLUTE MAXIMUM RATINGS Input Voltage Input Voltage Output Current OUT Output Voltage OUT Maximum Junction Temperature J(max) Storage Temperature STG ESD (Human Body Model ...
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... Regulator OFF Regulator ON SD ERROR = V OUT(nom SINK C v 100 nF NOISE when V is 100 mV below the value of V for V OUT OUT Si91821 Vishay Siliconix Limits −40 to 85_C Temp Min Typ Max Room 10 Room 30 Room 2.5 Room 350 ...
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... Si91821 Vishay Siliconix TIMING WAVEFORMS SD V OUT ERROR PIN CONFIGURATION PIN DESCRIPTION Pin Number Name Output voltage. Connect C OUT 2 V Input supply pin. Bypass this pin with a 2.2-mF ceramic or tantalum capacitor to ground GND Ground pin. Local ground for C For fixed output voltage versions, this pin could be connected to GND. For adjustable output voltage version, this ...
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... V REF − 300-mA CMOS LDO Regulator Figure NOISE + − − + − REF − 300-mA CMOS LDO Regulator (Adjustable Output) Si91821 Vishay Siliconix OUT C OUT 2 EXT ERROR SET OUT C OUT 2 EXT ...
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... Si91821 Vishay Siliconix DETAILED DESCRIPTION The Si91821 is a low drop out, low quiescent current, and very linear regulator with very fast transient response primarily designed for battery powered applications where battery run time premium. The low quiescent current allows extended standby time while low drop out voltage enables the system to fully utilize battery power before recharge ...
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... ORDERING INFORMATION Lead (Pb)-Free Part Number Marking Voltage 1821 Si91821DH-18-T1—E3 1.80 V 1800 1821 Si91821DH-25-T1—E3 2.50 V 2500 1821 Si91821DH-28-T1—E3 2.80 V 2800 1821 Si91821DH-30-T1—E3 3.00 V 3000 1821 Si91821DH-33-T1—E3 3.30 V 3300 1821 Si91821DH-50-T1—E3 5.00 V 5000 1821 Si91821DH-AD-T1—E3 Adjustable ADJ Temperature Range −40 to 85_C 400 ...
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... Si91821 Vishay Siliconix TYPICAL CHARACTERISTICS (INTERNALLY REGULATED, 25_C UNLESS NOTED) Dropout Voltage vs. Temperature 180 V = 2.775 V OUT 150 120 −50 − Junction Temperature (_C) Normalized V vs. Temperature OUT 0.6 0.4 0.2 −0.0 −0.2 −0.4 −0.6 −0.8 −1.0 −1.2 −1.4 −1.6 −40 − ...
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... Load Transient Response-4 V OUT 10 mV/div I LOAD 100 mA/div 5.00 ms/div V = 2.775 V OUT C = 1.0 mF OUT I = 150 LOAD msec fall LineTransient Respons-2 V OUT 2 V/div V OUT 10 mV/div 20 ms/div V = 5.77 to 4.77 V INSTEP V = 2.775 V OUT C = 2.2 mF OUT 300 mA LOAD msec fall Si91821 www.vishay.com 9 ...
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... Si91821 Vishay Siliconix TYPICAL WAVEFORMS Turn-On Sequence V 2 V/div V/div OUT ERROR 2 V/div 100 ms/div 2.775 V OUT C = 0.033 mF NOISE I = 300 mA LOAD Output Noise 200 mV/div 10 ms/div 2.775 V OUT I = 300 mA OUT C = 0.033 mF NOISE MHz Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon Technology and Package Reliability represent a composite of all qualified locations ...