NJM2893 3OUTPUT LOW DROPOUT VOLTAGE REGULATOR ■GENRAL DESCRIPTION The NJM2893 is a 3ch low dropout voltage regulator with ON/OFF Control in TVSP-8 package. It is suitable for camcorder, IC decoder, camera and other portable items. Preliminary ■PACKAGE OUTLINE NJM2893RB1 ■FEATURES ●High Ripple Rejection 70dB typ. at f=1kHz ●Low Noise 45µVrms typ. ●Output capacitor with 1.0µF ceramic capacitor at Vo≥2.7V ●Output Current Io(max.)=100mA x 3ch ●High Precision Output ±1.0% ●Low Dropout Voltage 0.1V typ. at Io=60mA ●ON/OFF Control ●Internal Thermal Overload Protection ●Internal Short Circuit Current Limit ●Bipolar Technology ●Package Outline TVSP-8 ■PIN CONFIGURATION 8 7 6 5 1 2 3 4 NJM2893RB1 PIN FUNCTION 1. VOUT1 5. CONTROL3 2. VOUT2 6. CONTROL2 3. VOUT3 7. CONTROL1 4. GND 8. VIN ■EQUIVALENT CIRCUIT VIN VOUT1 CONTROL1 Thermal Protection Bandgap Reference VOUT2 CONTROL2 VOUT3 CONTROL3 GND Ver.2003-03-11 -1- NJM2893 Preliminary ■ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Control Voltage VCONT Power Dissipation PD Operating Temperature Topr Storage Temperature Tstg RATINGS +14 +14(note1) 320 -40 to +85 -40 to+125 (Ta=25°C) UNIT V V mW °C °C (note1)When input voltage is less than +14V, the absolute maximum control voltage is equal to the input voltage. ■ERECRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=0.1µF, Co=1.0µF: Vo≥2.7V (Co=2.2µF: Vo≤2.6V), Ta=25°C) PARAMETER SYMBOL TEST CONDITION Output Voltage Vo Io=30mA Quiescent Current1 IQ1 VCONT1= VIN, VCONT2= VCONT3= 0V *1ch ON Io=0mA, expect Icont Quiescent Current2 IQ2 VCONT1= VCONT2= VIN, VCONT3= 0V *2ch ON Io=0mA, expect Icont Quiescent Current3 IQ3 VCONT1= VCONT2= VCONT3= VIN Io=0mA, expect Icont Quiescent Current at IQ(OFF) VCONT=0V Control OFF Output Current Io Vo-0.3V Line Regulation ∆Vo/∆VIN VIN=Vo+1V to Vo+6V, Io=30mA Load Regulation ∆Vo/∆Io Io=0 to 60mA Dropout Voltage ∆VI-O Io=60mA Ripple Rejection RR ein=200mVrms,f=1kHz,Io=10mA, Vo=3V Average Temperature ∆Vo/∆Ta Ta=0 to 85°C, Io=10mA Coefficient of Output Voltage Output Noise Voltage VNO f=10Hz to 80kHz, Io=10mA, Vo=3V Control Voltage for VCONT(ON) ON-state Control Voltage for VCONT(OFF) OFF-state MIN. -1.0% TYP. - MAX. +1.0% UNIT V - 140 220 µA - 240 370 µA - 340 520 µA - - 100 nA 100 - 130 0.10 0.10 0.03 0.18 mA %/V %/mA V - 70 - dB - ±50 - ppm/°C - 45 - µVrms 1.6 - - V - - 0.6 V (note2) Please confirm the specification separately because some parameters depend on output voltage. ■OUTPUT VOLTAGE RANK LIST Device Name CH1 NJM2893RB1-CCC 2.1V NJM2893RB1-LLL 3.0V NJM2893RB1-YLC 5.0V -2- VOUT CH2 2.1V 3.0V 3.0V CH3 2.1V 3.0V 2.1V Ver.2003-03-11 NJM2893 Preliminary ■TEST CIRCUIT A IIN VIN VIN 0.1µF A ICONT VOUT1 NJM2893 CONTROL1 ICONT2 IOUT1 V 1.0µF or 2.2µF(Vo≤2.6V) VOUT2 VOUT2 IOUT2 V V VCONT1 A VOUT1 1.0µF or 2.2µF(Vo≤2.6V) CONTROL2 VOUT3 VOUT3 IOUT3 V V VCONT2 A V VCONT3 Ver.2003-03-11 ICONT3 1.0µF or 2.2µF(Vo≤2.6V) CONTROL GND -3- NJM2893 Preliminary ■TYPICAL APPLICATION (1) In the case where ON/OFF Control is not required: VIN VIN VOUT1 0.1µF NJM2893 R1 (0～300kΩ) R2 (0～300kΩ) CONTROL VOUT2 CONTROL CONTROL 1.0µF or 2.2μF(Vo≤2.6V) VOUT2 1.0µF or 2.2µF(Vo≤2.6V) VOUT3 R3 (0～300kΩ) VOUT1 VOUT3 1.0µF or 2.2µF(Vo≤2.6V) GND Connect control terminal to VIN terminal In case a resistance “R” is used, the quiescent current will be decreased. However, the but minimum operating voltage will be increase as well. Please refer to a figure of Output Voltage vs. Control Voltage. (2)In use of ON/OFF Control: -4- Ver.2003-03-11 NJM2893 VIN VIN VOUT1 NJM2893 0.1µF R1 R2 VOUT1 1.0µF or 2.2µF(Vo≤2.6V) R3 CONTROL1 VOUT2 VOUT2 1.0µF or 2.2µF(Vo≤2.6V) CONTROL2 VOUT3 VOUT3 1.0µF or 2.2µF(Vo≤2.6V) CONTROL3 GND In case the control terminal is “H”, the output is enabled. The control terminal is ”L” or “open”, the output is disabled. Ver.2003-03-11 -5- NJM2893 [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. -6- Ver.2003-03-11