NJM2805 Datasheet, PDF (1/5 Pages) New Japan Radio – Low Dropout Voltage Regulator with Reset

NJM2805
Low Dropout Voltage Regulator with Reset
! GENERAL DISCRIPTION
The NJM2805 is a low dropout voltage regulator with reset
function.
It provides up to 300mA of logic supply, and the reset function
monitors output voltage of the regulator with 1% accuracy.
It is suitable for local power supply and reset for small micro
controller and other logic chips.
! FEATURES
" Output Voltage Accuracy
Vo ±1.0%
" Reset Voltage Accuracy
" Reset Hold Time
V_RT ±1.0%
td = 10mS±1.0mS
" Ripple Rejection
70dB typ. (f =1kHz)
" Quiescent Current
I_Q = 250µA (typ.)
" Output Voltage Monitor type
" Open Collector Output
" Internal Short Circuit Current Limit
" Internal Thermal Overload Protection
" Bipolar Technology
" Package Outline
SOT-89 -5
! OUTPUT VOLTAGE/ DETECTION VOLTAGE
Device Name
NJM2805U2923
V_OUT
2.9V
V_DET
2.3V
NJM2805U3329 3.3V
2.9V
NJM2805U0543 5.0V
4.3V
! EQUIVALENT CIRCUIT
! PACKAGE OUTLINE
NJM2805U
! PIN CONFIGURATION
524
123
NJM2805U
PIN FUNCTION
1.V_OUT
2.GND
3.Cd
4.V_OR
5.V_IN
V_IN
V_OUT
Thermal
V_OR
Protection
GND
Cd
Bandgap
Reference
Ver.2004-01-19
-1 -