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LD3870 の電気的特性と機能

LD3870のメーカーはUnisonic Technologiesです、この部品の機能は「LOW DROPOUT VOLTAGE REGULATOR」です。


製品の詳細 ( Datasheet PDF )

部品番号 LD3870
部品説明 LOW DROPOUT VOLTAGE REGULATOR
メーカ Unisonic Technologies
ロゴ Unisonic Technologies ロゴ 




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LD3870 Datasheet, LD3870 PDF,ピン配置, 機能
UNISONIC TECHNOLOGIES CO., LTD
LD3870
LINEAR INTEGRATED CIRCUIT
LOW DROPOUT VOLTAGE
REGULATOR
„ DESCRIPTION
The UTC LD3870 is low dropout voltage regulator designed
for cellular phone application.
„ FEATURES
* High Ripple Rejection: 56dBRR(DC<f<60kHz)
66dB typ. (f=100Hz)
60dB typ. (f=1kHz)
* Output Noise Voltage: eN=30ΜV , Cp=0.01μF
* Output Current: IO(MAX)=150mA
* High Precision Output: VO±2%
* Low Dropout Voltage: VD=0.12V typ.
(IO=60mA,Vo1.8V)
* Input Voltage range: +2~+14V(VO =1.5V Version)
* ON/OFF Control: Active High
* Output capacitor with 4.7uF ceramic capacitor
* Internal Short Circuit Current Limit
* Internal Thermal Overload Protection
„ ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
LD3870L-xx-AF5-R
LD3870G-xx-AF5-R
Package
SOT-25
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2013 Unisonic Technologies Co., LTD
1 of 5
QW-R105-028,E

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LD3870 pdf, ピン配列
LD3870
LINEAR INTEGRATED CIRCUIT
„ ABSOLUTE MAXIMUM RATINGS (TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Input Voltage
Control Voltage
VIN
VCONT
+14
+14(Note 2)
V
V
Power Dissipation
Operating Temperature
PD
TOPR
200
-40 ~ +85
mW
°C
Storage Temperature
TSTG
-40 ~ +125
°C
Note 1: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2. When input voltage is less than +14V, the absolute maximum control voltage is equal to the input voltage.
„ ELECTRICAL CHARACTERISTICS
(VIN=VOUT+1V, CIN=0.1μF, COUT=4.7μF, Cp=0.01μF, TA=25°C)
PARAMETER
SYMBOL
TEST CONDITONS
MIN TYP MAX UNIT
Output Voltage
Quiescent Current
VOUT
IQ
IOUT=30mA
IOUT=0mA, expect lCONT
-2% +2% V
200 300 μA
Quiescent Current
At Control OFF
IQ(OFF)
VCONT=0V
100 nA
Output Current
IOUT
VOUT-0.3V
150 200
mA
Line Regulation
Load Regulation
VOUT/VIN VIN=VOUT+1V ~ VOUT+6V, IOUT=30mA
VOUT/IOUT IOUT=0 ~ 100mA
0.10 %/V
0.03 %/mA
Dropout Voltage
Ripple Rejection
VD IOUT=60mA
RR
eIN=200mVrms, f=1kHz, IOUT=10mA,
VIN=VOUT+2V, VOUT=3V Version
0.12 0.2
60
V
dB
Average Temperature
Coefficient of Output Voltage
Output Noise Voltage
VOUT/TA
TA=0~85, IOUT=10mA,
VOUT=3V Version
e f=10Hz ~ 80kHz, IOUT=10mA,
N VOUT=3V Version
0.2 mV/°C
30 μVrms
Control Voltage
ON
OFF
VCONT(ON)
VCONT(OFF)
1.6 V
0.6 V
Note: 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.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 5
QW-R105-028,E


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共有リンク

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部品番号部品説明メーカ
LD3870

LOW DROPOUT VOLTAGE REGULATOR

Unisonic Technologies
Unisonic Technologies


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