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LD3870-2.8V датащи(PDF) 3 Page - Unisonic Technologies

номер детали LD3870-2.8V
подробное описание детали  LINEAR INTEGRATED CIRCUIT
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производитель  UTC [Unisonic Technologies]
домашняя страница  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

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UTC LD3870
LINEAR INTEGRATED CIRCUIT
UTC UNISONIC TECHNOLOGIES CO., LTD. 3
QW-R102-027,B
ELECTRICAL CHARACTERISTICS
(Vo=1.5V Version, VIN=2.4V, 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 Icont
200
300
μA
Quiescent Curretn
At Control OFF
IQ(OFF)
VCONT=0V
100
nA
Output Curretn
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
Ripple Rejection
RR
ein=200mVrms, f=1kHz, Io=10mA,
VIN=Vo+2V
64
dB
Average Temperature
Coefficient of Output Voltage
△Vo/△Ta
Ta=0 ~ 85℃, Io=10mA
0.13
mV/℃
Output Noise Voltage
VNO
f=10Hz ~ 80kHz, Io=10mA
15
μVrms
Control Voltage for ON-state
VCONT(ON)
1.6
V
Control Voltage for OFF-state
VCONT(OFF)
0.6
V
TEST CIRCUIT
VIN
VOUT
CONTROL
NOISE
BYPASS
GND
A
A
V
V
IIN
VIN
VCONT
ICONT
IOUT
VOUT
(tantalum)
4.7 μF
+
+
CP=0.01 μF
0.1 μF
UTC LD3870
TYPICAL APPLICATON
In case that ON/OFF Control is not required:
VIN
VOUT
CONTROL
NOISE
BYPASS
GND
(ceramic or tantalum)
(0~300kΩ)
R
VOUT
0.1 μF
Cp=0.01 μF
4.7 μF
UTC LD3870


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