DatasheetsPDF.com

L2949E Dataheets PDF



Part Number L2949E
Manufacturers UTC
Logo UTC
Description MULTIFUNCTION VERY LOW DROP VOLTAGE REGULATOR
Datasheet L2949E DatasheetL2949E Datasheet (PDF)

UTCL2949E LINEAR INTEGRATED CIRCUIT MULTIFUNCTION VERY LOW DROP VOLTAGE REGULATOR DESCRIPTION The UTC L2949E is a monolithic integrated 5V voltage regulator with a very low dropout output and additonal functions as power-on reset and input voltage sense.It is designed for supplying the microcomputer controlled systems especially in automotive applications. FEATURES *Operating dc supply voltage range 5V to 28V. *Transient supply voltage up to 40V. *Extremely low quiescent current in standby mode.

  L2949E   L2949E


Document
UTCL2949E LINEAR INTEGRATED CIRCUIT MULTIFUNCTION VERY LOW DROP VOLTAGE REGULATOR DESCRIPTION The UTC L2949E is a monolithic integrated 5V voltage regulator with a very low dropout output and additonal functions as power-on reset and input voltage sense.It is designed for supplying the microcomputer controlled systems especially in automotive applications. FEATURES *Operating dc supply voltage range 5V to 28V. *Transient supply voltage up to 40V. *Extremely low quiescent current in standby mode. *High precision standby output voltage 5V±1% *Output current capability up to 100mA. *Very low dropout voltage less than 0.5V. *Reset circuit sensing the output voltage *Programmable reset pulse delay with external capacitor *Voltage sense comparator. *Thermal shutdown and short circuit protections. PIN CONNECTIONS DIP-8 SOP-8 SOP-20 VS 1 SI 2 Vz 3 CT 4 8 VOUT 7 SO 6 RES 5 GND DIP-8/SOP-8 Vz CT N.C. GND GND GND GND N.C. N.C. RES 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 SOP-20 SI VS N.C. GND GND GND GND N.C. VOUT SO UTC UNISONIC TECHNOLOGIES CO. LTD 1 QW-R102-014,A UTC L2949E BLOCK DIAGRAM LINEAR INTEGRATED CIRCUIT Vz VOUT CT VS PREREGULATOR 5V 2μ + REG SI RESET VS 2V REF 1.23V SENSE 1.23V RES SO GND ABSOLUTE MAXIMUM RATINGS PARAMETER DC Operating Supply Voltage Transient Supply Voltage(T<1s) Output Current Output Voltage Output Voltage Reset Output Sense Output Output Current Reset Output Sense Output Preregulator Output Voltage Preregulator Output Current Junction Temperature Storage Temperature Range SYMBOL VCC VCC TR Io Vo VRES Vso IRES Iso Vz Iz Tj Tstg RATING 28 40 Internally Limited 20 20 20 5 5 7 5 -40~+150 -55~+150 UNIT V V V V mA V mA ℃ ℃ UTC UNISONIC TECHNOLOGIES CO. LTD 2 QW-R102-014,A UTCL2949E LINEAR INTEGRATED CIRCUIT THERMAL DATA DESCRIPTION Thermal Resistance Junction-ambient DIP-8 SOP-8 SOP-20 Thermal Resistance Junction-pin (SOP-20) Thermal Shutdown Junction temperature SYMBOL Rth j-amb Rth j-pins TJSD RATING 100 200 50 15 165 UNIT ℃/W ℃/W ℃ ELECTRICAL CHARACTERISTICS(Vs=14V;-40℃


L2293Q L2949E L5150CJ


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)