NJM2887

www.DataSheet4U.com NJM2887 ADJUSTABLE LOW DROPOUT VOLTAGE REGULATOR ! GENERAL DESCRIPTION The NJM2887 is an adjustable low dropout voltage regulator with ON/OFF control. Advanced Bipolar technology achieves low noise, high ripple rejection and low quiescent current. It is suitable for DVD, FAX and Car Audio. ! FEATURES " High Ripple Rejection 75dB typ. (f=1kHz) " Output Noise Voltage Vno=45µVrms " Output capacitor with 2.2µF ceramic capacitor " Output Current Io(max.)=500mA " High Precision Output Vref=1.27V±1.0% " Low Dropout Voltage 0.18V typ. (Io=300mA) " ON/OFF Contorol " Internal Short Circuit Current Limit " Internal Thermal Overload Protection " Bipolar Technology " Package Outline TO-252-5 ! PIN CONFIGURATION 3 ! PACKAGE OUTLINE NJM2887DL2 12345 PIN FUNCTION 1.CONTROL 2. VIN 3.GND 4.VOUT 5.VADJ NJM2887DL2 ! EQUIVALENT CIRCUIT VIN Control Bandgap Reference VADJ Thermal Protection VOUT GND Ver.2004-01-16 -1- www.DataSheet4U.com NJM2887 ! ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Control Voltage VCONT (Ta=25°C) UNIT V V mW °C °C RATINGS +14 +14(*note 1) 8(Tc=25°C) Power Dissipation PD 0.8(Ta≤25°C) Operating Temperature Topr -40 ∼ +85 Storage Temperature Tstg -40 ∼ +125 (*note 1): When input voltage is less than +14V, the absolute maximum control voltage is equal to the input voltage. ! ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, R1=100kΩ, CIN=0.33uF, Co=2.2uF:Vo (Co=4.7µF: Vo≤2.6V), Ta=25°C) PARAMETER SYMBOL TEST CONDITION Io=30mA Output Voltag...