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NJM2893 Dataheets PDF



Part Number NJM2893
Manufacturers JRC
Logo JRC
Description 3OUTPUT LOW DROPOUT VOLTAGE REGULATOR
Datasheet NJM2893 DatasheetNJM2893 Datasheet (PDF)

NJM2893 www.DataSheet4U.com 3OUTPUT LOW DROPOUT VOLTAGE REGULATOR ! GENERAL 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. ! FEATURES " High Ripple Rejection 75dB typ. (f=1kHz,Vo=3V Version) " Output Noise Voltage Vno=45µVrms typ. " Output capacitor with 1.0uF ceramic capacitor (Vo≥2.7V) " Output Current Io(max.)=100mA x3 " High Precision Output Vo±1.0% " Low Dropout.

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NJM2893 www.DataSheet4U.com 3OUTPUT LOW DROPOUT VOLTAGE REGULATOR ! GENERAL 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. ! FEATURES " High Ripple Rejection 75dB typ. (f=1kHz,Vo=3V Version) " Output Noise Voltage Vno=45µVrms typ. " Output capacitor with 1.0uF ceramic capacitor (Vo≥2.7V) " Output Current Io(max.)=100mA x3 " High Precision Output Vo±1.0% " Low Dropout Voltage 0.10V typ. (Io=60mA) " ON/OFF Control (Active High) " Internal Short Circuit Current Limit " Internal Thermal Overload Protection " Bipolar Technology " Package Outline TVSP-8 ! PIN CONFIGURATION ! PACKAGE OUTLINE NJM2893RB1 8 7 6 5 PIN FUNCTION 1.VOUT1 2.VOUT2 3.VOUT3 4.GND 5.CONTROL3 6.CONTROL2 7.CONTROL1 8.VIN 1 2 3 4 NJM2893RB1 NJM2893 www.DataSheet4U.com ! EQUIVALENT CIRCUIT VIN CONTROL1 Bandgap Reference Thermal Protection VOUT1 VOUT2 CONTROL2 VOUT3 CONTROL3 GND NJM2893 www.DataSheet4U.com ! OUTPUT VOLTAGE RANK LIST Device Name CH1 NJM2893RB1-CCC 2.1V NJM2893RB1-LLL 3.0V NJM2893RB1-YLC 5.0V ! ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Control Voltage VCONT Power Dissipation PD Operating Temperature Topr Storage Temperature Tstg Vout CH2 2.1V 3.0V 3.0V CH3 2.1V 3.0V 2.1V (Ta=25°C) RATINGS UNIT +14 V +14(*1) V 320 mW −40 to +85 °C −40 to +125 °C (*1) When input voltage is less than +14V, the absolute maximum control voltage is equal to the input voltage. ! ELECTRICAL CHARACTERISTICS (VIN=Vo+1V, CIN=0.1µF, Co=1.0uF: Vo≥2.7V (Co=2.2uF: Vo≤2.6V), Ta=25°C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Output Voltage Quiescent Current1 Quiescent Current2 Vo IQ1 IQ2 Quiescent Current3 Quiescent Current at Control OFF Output Current Line Regulation Load Regulation Dropout Voltage Ripple Rejection Average Temperature Coefficient of Output Voltage Output Noise Voltage IQ3 IQ(OFF) Io ∆Vo/∆VIN ∆Vo/∆Io1 ∆VI−O1 RR ∆Vo/∆Ta VNO Io=30mA VCONT1=VIN, VCONT2=VCONT3=0V *1ch ON Io=0mA, expect Icont VCONT1= VCONT2=VIN, VCONT3=0V *2ch ON Io=0mA, expect Icont VCONT1= VCONT2=VCONT3=VIN Io=0mA, expect Icont VCONT=0V -1.0% − − − − − 150 270 390 − 200 − − 0.10 75 ±50 45 − − +1.0% 220 400 580 100 0.10 0.03 0.18 − − − − 0.6 V µA µA µA nA mA %/V %/mA V dB ppm/°C µVrms V V 150 Vo−0.3V VIN=Vo+1V to Vo+6V, Io=30mA − Io=0 to 100mA − Io=60mA − ein=200mVrms,f=1kHz, Io=10mA, − Vo=3V Version Ta=0 to 85°C, Io=10mA f=10Hz to 80kHz, Io=10mA, Vo=3V Version − − 1.6 − Control Voltage for ON-state VCONT(ON) Control Voltage for OFF-state VCONT(OFF) (*2) VIN =Vo+1V means add 1V to higher output voltage. The above specification is a common specification for all output voltages. Therefore, it may be different from the individual specification for a specific output voltage. NJM2893 www.DataSheet4U.com ! TEST CIRCUIT A VIN IIN VIN VOUT1 *3 1.0µF (ceramic 0.1µF ICONT1 NJM2893 IOUT1 V VOUT1 A V VCONT1 CONTROL1 VOUT2 1.0µF *3 (ceramic IOUT2 V VOUT2 A V VCONT2 ICONT2 CONTROL2 VOUT3 1.0µF*3 (ceramic) IOUT3 V VOUT3 A V VCONT3 ICONT3 CONTROL3 GND *3 Vo≤2.6V version: Co=2.2µF(ceramic) NJM2893 www.DataSheet4U.com ! TYPICAL APPLICATION 1 In the case where ON/OFF Control is not required: VIN 0.1µF VIN VOUT1 1.0µF *4 VOUT1 NJM2893 R1 (0~300kΩ) CONTROL1 VOUT2 VOUT2 1.0µF *4 R2 (0~300kΩ) CONTROL2 VOUT3 1.0µF *4 VOUT3 R3 (0~300kΩ) CONTROL3 GND *4 Vo≤2.6V version: Co=2.2µF Connect control terminal to VIN terminal NJM2893 www.DataSheet4U.com 2 In use of ON/OFF CONTROL: VIN VIN VOUT1 1.0µF *4 VOUT1 0.1µF R1 R2 R3 NJM2893 CONTROL1 VOUT2 1.0µF *4 VOUT2 CONTROL2 VOUT3 1.0µF *4 VOUT3 CONTROL3 GND *4 Vo≤2.6V version: Co=2.2µF State of control terminal: •“H”→ output is enabled. • “L” or “open” → output is disabled. %In the case of using a resistance "R" between VIN and control. The current flow into the control terminal while the IC is ON state (ICONT) can be reduced when a pull up resistance "R" is inserted between VIN and the control terminal. The minimum control voltage for ON state (VCONT (ON)) is increased due to the voltage drop caused by ICONT and the resistance "R". The ICONT is temperature dependence as shown in the "Control Current vs. Temperature" characteristics. Therefore, the resistance "R" should be carefully selected to ensure the control voltage exceeds the VCONT (ON) over the required temperature range. NJM2893 www.DataSheet4U.com ! ELECTRICAL CHARACTERISTICS 3.2 NJM2893_3V Output Voltage v.s. Input Voltage @:Ta=25oC Co=1 µF(Ceramic) 4 NJM2893_3V Output Voltage vs. Output Current 3.5 3.1 Output Voltage :Vo [V] 3 Io=0A 3 Output Voltage :Vo [V] 2.5 2 2.9 Io=30mA 1.5 1 2.8 Io=100mA 0.5 @:Ta=25 oC V IN=4V Co=1 µF(Ceramic) 0 50 100 150 200 2.7 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 0 Input Voltage :VIN [V] Output Current :Io [mA] 20 NJM2893_3V Ground Pin Current vs. Output Voltage @:Ta=25 C V IN=4V Co=1 µF(Ceramic) o 0.3 NJM2893.


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