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Details, datasheet, quote on part number:NJM2898
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| Part: | NJM2898 |
| Category: | Power Management => Regulators => Linear Voltage Regulators => LDO (Low Drop Out) |
| Description: | 2ch Low Noise Low Dropout Voltage Regulator |
| Company: | NJR Corporation |
| Datasheet: | Download NJM2898 datasheet File size : 75 kB |
| Request For quote: | Find where to buy NJM2898
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Datasheet text preview:
NJM2898
2ch ULTRA LOW NOISE LOW DROPOUT VOLTAGE REGULATOR
! GENERAL DESCRIPTION The NJM2898 is a 2ch ultra low noise low dropout voltage regulator designed for VCO Applications. Advanced Bipolar technology achieves low noise, high ripple rejection and low quiescent current. ! PACKAGE OUTLINE
NJM2898PB1
! FEATURES " High Ripple Rejection " Output Noise Voltage
75dB typ. (f=1kHz) Vno=19µVrms typ. (Cp=0.01µF, Co=1.0µF(Ceramic)) Vno=12µVrms typ. (Cp=0.1µF, Co=10µF(Tantalum)) " Output capacitor with 1.0uF ceramic capacitor " Output Current Io(max.)=100mA × 2ch " 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 FFP12-B1 (2.0×2.0×0.85mm)
! PIN CONFIGURATION
9 10 11 12 1 2 3 8 7 6 5 4 6 5 4 3 2 1 7 8 9 10 11 12
PIN FUNCTION 1. VOUT2 2. VOUT2 3. GND 4. CONTROL2 5. VIN2 6. VIN1
7. CONTROL1 8. VOUT1 9. VOUT1 10. NOISE BYPASS1 11. NC 12. NOISE BYPASS2
TOP TOP
UNDER
NJM2898PB1
! EQUIVALENT CIRCUIT
VI N 1/VI N2 Control1/ Control2 Bandgap Reference Thermal Protec tion Nois e Bypass1/ Nois e Bypass2 VOUT1/V OU T2
GND
Ver.2004-01-16
-1-
NJM2898
! ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Input Voltage VIN Control Voltage VCONT Power Dissipation PD Operating Temperature Topr Storage Temperature Tstg (Ta=25°C) RATINGS UNIT +14 V +14(*note 1) V 350(*note 2) mW -40 +85 °C -40 +125 °C (*note 1): When input voltage is less than +14V, the absolute maximum control voltage is equal to the input voltage. (*note 2): On board, 25mm×25mm×0.2mm glass epoxy baseplate. ! ELECTRICAL CHARACTERISTICS (1CH/2CH: VIN=Vo+1V, CIN=0.1µF, Co=1.0uF: Vo2.7V (Co=2.2uF: Vo2.6V), Cp=0.01µF, Ta=25°C) PARAMETER SYMBOL TEST CONDITION MIN. TYP. Output Voltage Vo Io=30mA -1.0% - Quiescent Current IQ Io=0mA, except Icont, per 1ch 120 - Quiescent Current VCONT=0V, per 1ch IQ(OFF) - - at Control OFF Output Current Io 100 130 Vo-0.3V Line Regulation Vo/VIN VIN=Vo+1V Vo+6V, Io=30mA - - Load Regulation Vo/Io Io=0 100mA - - Io=60mA 0.10 Dropout Voltage VI-O - ein=200mVrms,f=1kHz, Io=10mA, Ripple Rejection RR 75 - Vo=3V Version Average Temperature Coefficient of Output Vo/Ta Ta=0 85°C, Io=10mA ± 50 - Voltage f=10Hz 80kHz, Io=10mA, Cp=0.01µF, Output Noise Voltage1 VNO1 19 - Co=1.0µF(Ceramic), Vo=3V Version f=10Hz 80kHz, Io=10mA, Cp=0.1µF, Output Noise Voltage2 VNO2 12 Co=10µF(Tantalum), Vo=3V Version Control Voltage for 1.6 VCONT(ON) - ON-state Control Voltage for VCONT(OFF) - - OFF-state (*note 3): 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. ! OUTPUT VOLTAGE RANK LIST Device Name NJM2898PB1-2828 NJM2898PB1-JJ NJM2898PB1-0303 NJM2898PB1-0521 VOUT CH1 2.8V 2.85V 3.0V 5.0V CH2 2.8V 2.85V 3.0V 2.1V
MAX. +1.0% 180 100 0.10 0.03 0.18 - - -
UNIT V µA nA mA %/V %/mA V dB ppm/°C µVrms µVrms
- 0.6
V V
-2-
Ver.2004-01-16
NJM2898
! TEST CIRCUIT A V
1.0µF OR IOUT1 2.2µF(Vo2.6V) VOUT1 VOUT1 CONTROL1 VOUT1 I CONT1
V
VCONT1
NOISE BYPASS1 Cp=0.01µF NC
VIN1 0.1µF
A
IIN1 VIN1
NJM2898
VIN2
A
0.1µF
IIN2 VIN2
NOISE BYPASS2 CONTROL2 Cp=0.01µF VOUT2 VOUT2 GND
A
I CONT2
V
VCONT2
V
VOUT2
IOUT2
1.0µF OR 2.2µF(Vo2.6V)
Ver.2004-01-16
-3-
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