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NJM2801
PRELIMINARY Low Dropout Voltage Regulator with Reset ■ GENERAL DISCRIPTION
The NJM2801 is a...
www.DataSheet4U.com
NJM2801
PRELIMINARY Low Dropout Voltage
Regulator with Reset ■ GENERAL DISCRIPTION
The NJM2801 is a low dropout voltage
regulator with reset function. It provides up to 150mA of logic supply, and the reset function monitors either input or output voltage of the
regulator with 2% accuracy. It is suitable for local power supply and reset for small micro controller and other logic chips.
■ PACKAGE OUTLINE
NJM2801F**
NJM2801U**
■ FEATURES
■ PIN CONFIGURATION
( MTP-5 )
1 2 3 4 5
Output Voltage Accuracy Vo = ±2.2% Reset Output Voltage VORH = 3.3V(typ.) Reset Hold Time td = 10mS±2.5mS Ripple Rejection RR=60dB (typ.) Quiescent Current IQ=300µA(max.) Open Collector Output Bipolar Technology Output Voltage Monitor type Package Outline SOT89(5Pin)/MTP5 Protection Circuit 1.Current limit circuit
2.Thermal overload protection circuit
1.VIN 2.GND 3.VOR 4.Cd 5.VOUT
( SOT-89 )
5 4
1.VOUT 2.GND 3.Cd 4.VOR 5.VIN
1
2
3
■ Output Voltage/Reset Validated Voltage
PART NO NJM2801-0543 Output Voltage 5.0V Reset Validated Voltage 4.3V
■ Block Diaglam
VIN
Thermal Protection
VO
VOR
Bandgap Reference
GND
Cd
NJM2801
PRELIMINARY ■ Absolute Maximum Ratings
PARAMETER Input Voltage Power Dissipation Operating Temperature Storage Temperature Range SYMBOL VIN PD Topr Tstg (Ta=25°C) RATINGS UNIT +14 V 200 (MTP5) mW 350 (SOT-89) −40∼+85 °C −40∼+125 °C
■ ELECTRICAL CHARACTERISTICS (VIN=Vo+1V , CIN=0.1µF, Co=1µF ( Vo≤2.6V: Co=2.2µF ) Ta=25°C )
PARAMETER
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