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LD3870-3.8V 데이터시트(PDF) 2 Page - Unisonic Technologies

부품명 LD3870-3.8V
상세설명  LINEAR INTEGRATED CIRCUIT
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UTC LD3870
LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD. 2
QW-R102-027,B
BLOCK DAGRAM
+
-
VIN
Cont
GND
Bandgap
Reference
Thermal
Protection
VOUT
Noise
Bypass
ABSOLUTE MAXIMUM RATINGS (Ta=25℃)
PARAMETER
SYMBOL
RATINGS
UNIT
Input Voltage
VIN
+14
V
Control Voltage
VCONT
+14(Note 1)
V
Power Dissipation
PD
200
mW
Operating Temperature
Topr
-40 ~ +85
Storage Temperature
Tstg
-40 ~ +125
Note 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=4.7μF, Cp=0.01μF, Ta=25℃)
PARAMETER
SYMBOL
TEST CONDITONS
MIN.
TYP.
MAX.
UNIT
Output Voltage
Vo
Io=30mA
-2%
+2%
V
Quiescent Current
IQ
Io=0mA, expect lcont
200
300
μA
Quiescent Current
At Control OFF
IQ(OFF)
VCONT=0V
100
nA
Output Current
Io
Vo-0.3V
150
200
mA
Line Regulation
△Vo/△VIN VIN=Vo+1V ~ Vo+6V, Io=30mA
0.10
%/V
Load Regulation
△Vo/△Io Io=0 ~ 100mA
0.03
%/mA
Dropout Voltage
△VI-o
Io=60mA
0.12
0.2
V
Ripple Rejection
RR
ein=200mVrms, f=1kHz, Io=10mA,
VIN=Vo+2V,
Vo=3V Version
60
dB
Average Temperature
Coefficient of Output Voltage
△Vo/△Ta
Ta=0~85℃, Io=10mA,
Vo=3V Version
0.2
mV/℃
Output Noise Voltage
VNO
f=10Hz ~ 80kHz, Io=10mA,
Vo=3V Version
30
μVrms
Control Voltage for ON-state
VCONT(ON)
1.6
V
Control Voltage for OFF-state VCONT(OFF)
0.6
V
Note 2: 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.


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