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Details, datasheet, quote on part number:NJM2894RB1
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Datasheet text preview:
NJM2894
3OUTPUT LOW DROPOUT VOLTAGE REGULATOR
GENRAL DESCRIPTION The NJM2894 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. at f=1kHz Low Noise 45µVrms typ. Output capacitor with 1.0µF ceramic capacitor at Vo2.7V Output Current Io(max.)=ch1=150mA ,ch2,3=80mA 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
1 2 3 4 8 7 6 5
Preliminary
PACKAGE OUTLINE
NJM2894RB1
NJM2894RB1 EQUIVALENT CIRCUIT
VIN CONTROL1
PIN FUNCTION 1. VOUT1 5. CONTROL3 2. VOUT2 6. CONTROL2 3. VOUT3 7. CONTROL1 4. GND 8. VIN
VOUT1
Thermal Protection
Bandgap Reference
VOUT2 CONTROL2
VOUT3 CONTROL3
GND
Ver.2003-03-11
-1-
NJM2894
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: Vo2.7V (Co=2.2µF: Vo2.6V), 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 1 Io1 Ch1 : Vo-0.3V Output Current 2 Io2 Ch2,3 : Vo-0.3V Line Regulation Vo/VIN VIN=Vo+1V to Vo+6V, Io=30mA Load Regulation 1 Vo/Io1 Ch1 : Io=0 to 100mA Load Regulation 2 Vo/Io2 Ch2,3 : Io=0 to 60mA Dropout Voltage 1 VI-O1 Ch1 : Io=60mA Dropout Voltage 2 VI-O2 Ch2,3 : Io=40mA Ripple Rejection RR ein=200mVrms,f=1kHz,Io=10mA, Vo=3V Average Temperature Coefficient of Output Vo/Ta Ta=0 to 85°C, Io=10mA 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% 150 80 1.6 -
TYP. 140 240 340 200 100 0.10 0.10 75 ±50 45 -
MAX. +1.0% 220 370 520 100 0.10 0.03 0.03 0.18 0.18 0.6
UNIT V µA µA µA nA mA mA %/V %/mA %/mA V V dB ppm/°C µVrms V 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
VOUT CH2 2.1V 3.0V 3.0V
CH3 2.1V 3.0V 2.1V
-2-
Ver.2003-03-11
NJM2894
Preliminary TEST CIRCUIT
A
VIN
IIN
VIN
VOUT 1
VOUT1 IOUT 1 V
1.0µF or 2.2µF(Vo2.6V)
0.1µF
NJM2894
A
ICONT
CONTROL1
VOUT2 VOUT2 IOUT2 V
1.0µF or 2.2µF(Vo2.6V)
V VCONT1
A V VCONT2
ICONT2
CONTROL2
VOUT3 VOUT3 IO U T 3 V
1.0µF or 2.2µF(Vo2.6V)
A V VCONT3
ICONT3
CONTROL
GND
Ver.2003-03-11
-3-
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