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TK628STL Dataheets PDF



Part Number TK628STL
Manufacturers TOKO
Logo TOKO
Description CMOS LDO REGULATOR
Datasheet TK628STL DatasheetTK628STL Datasheet (PDF)

ADVANCED INFORMATION ADVANCED INFORMATION FEATURES s s s s s s s CMOS LDO REGULATOR WITH HIGH ACTIVE CONTROL APPLICATIONS s s s s s s s s s Battery Powered Systems Cellular Telephones Pagers Toys Radio Control Systems Low Voltage Systems Personal Communications Systems Portable Instrumentation Portable Consumer Equipment Low Dropout Voltage Very Low Quiescent Current (50 µA maximum) Internal Bandgap Reference Regulates down to 1.8 V Short Circuit Protection Very Low Standby Current (1 µA maxim.

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ADVANCED INFORMATION ADVANCED INFORMATION FEATURES s s s s s s s CMOS LDO REGULATOR WITH HIGH ACTIVE CONTROL APPLICATIONS s s s s s s s s s Battery Powered Systems Cellular Telephones Pagers Toys Radio Control Systems Low Voltage Systems Personal Communications Systems Portable Instrumentation Portable Consumer Equipment Low Dropout Voltage Very Low Quiescent Current (50 µA maximum) Internal Bandgap Reference Regulates down to 1.8 V Short Circuit Protection Very Low Standby Current (1 µA maximum) Miniature Package (SOT-23-5) DESCRIPTION The device is a low dropout linear regulation housed in a small SOT-23-5 package, rated at 500 mW. An internal P Channel pass transistor is used in order to achieve low dropout voltage. The device has extremely low quiescent current (max 50 µA). The device offers high precision output voltage of 2% at over temperature. The low quiescent current and dropout voltage make this part ideal for battery powered applications. In the standby mode when the device is disabled, the linear regulator only draws 1 µA (max). TKxxxxx VIN GND CONTROL VOUT NC BLOCK DIAGRAM ORDERING INFORMATION TK6xxxx S VIN VOUT Tape/Reel Code Package Code Voltage Code VOLTAGE CODE 18 = 1.8 V 20 = 2.0 V 25 = 2.5 V 28 = 2.8 V 30 = 3.0 V 33 = 3.3 V 35 = 3.5 V 40 = 4.0 V 45 = 4.5 V 50 = 5.0 V 55 = 5.5 V 60 = 6.0 V CONTROL CONTROL CIRCUIT CURRENT LIMIT + + TAPE/REEL CODE TL: Tape Left BANDGAP REFERENCE PACKAGE CODE S: SOT-23-5 GND February 1999 TOKO, Inc. Page 1 ADVANCED INFORMATION ABSOLUTE MAXIMUM RATINGS All pins except GND ................................................... 9 V Power Dissipation (Note 1) ................................ 500 mW Storage Temperature Range ................... -55 to +150 °C Operating Temp. Range ..............................-30 to +80 °C Junction Temperature ........................................... 150 °C ELECTRICAL CHARACTERISTICS Test conditions: VIN = VOUT(TYP) + 1 V, TA = 25 °C, unless otherwise specified. SYMBOL VIN IQ ISTBY IOUT VOUT Load Reg Line Reg VDROP PARAMETER Input Supply Quiescent Current Standby Current Output Current Output Voltage Load Regulation Line Regulation Dropout Voltage Note 2, TA = -30 to +80° C, IOUT = 1 mA IOUT = 1 mA to 50 mA VOUT(TYP) + 0.5 V ≤ VIN ≤ 8 V, IOUT = 1 mA IOUT = 50 mA TBD 55 200 No Load VIN = 8 V, Output Off 50 -2% VOUT 2% 200 30 TEST CONDITIONS MIN TYP MAX 8 50 1 UNITS V µA µA mA V mV mV mV CONTROL TERMINAL SPECIFICATIONS ICONT VCONT (ON) VCONT (OFF) Control Current Control Voltage ON Control Voltage OFF VCONT = 1.5 V, Output ON Output ON Output OFF 1.5 0.25 TBD µA V V Note 1: Power dissapation is 500 mW when mounted as recommended (150 mW in Free Air). Derate at 1.8 mW/°C for operation above 25 °C. Note 2: VOUT = 1.8 V to 6 V, 0.1 V step. Page 2 February 1999 TOKO, Inc. ADVANCED INFORMATION DEFINITION AND EXPLANATION OF TECHNICAL TERMS OUTPUT VOLTAGE (VOUT) The output voltage is specified with VIN = (VOUT(TYP) + 1 V) and IOUT = 1 mA. DROPOUT VOLTAG.


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