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PDF LD6912 Data sheet ( Hoja de datos )
| Número de pieza | LD6912 | |
| Descripción | Ultra-Fast CMOS LDO Regulator | |
| Fabricantes | Leadtrend | |
| Logotipo |  |
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LD6912
9/8/2006
300mA, Low Noise, Ultra-Fast CMOS LDO Regulator with
Soft Start Function
REV: 00
General Description
The LD6912 is a micropower linear regulator, featuring
low-noise, low-dropout and high ripple rejection ration. The
precision of feedback reference voltage is within ±2% and
output current is up to 300mA. As well, the LD6912 can be
stable with an output capacitor of 1µF which reduces the
board space and cost.
The LD6912 is available in a space saving SOT23-5 or
SC70-5 package.
+Patented
Features
z Shutdown current <1µA
z Ultra-Fast Response in Load Transient
z High PSRR 70dB@1KHz
z Thermal Shutdown and Current Limiting Protection
z VOUT Discharge Function
z Stable with 1µF Output Capacitor
z Soft Start Operation
z Output Voltage: 1.5V to 3.3V (step 0.1V)
Applications
z Battery-Powered Equipment
z Hand-Held Instruments
Typical Application
VIN
1µF/X5R
C IN
VIN
CE
OUT
LD6912
22nF
SS GND
VOUT
COUT 1µF/X5R
Fig.1 Typical Application Circuit
Leadtrend Technology Corporation
LD6912-DS-00, September 2006
1
1 page  
LD6912
Typical Performance Characteristics
3.2
3.1
3.1
3.0
3.0
2.9
2.90
-40
-20 0
20 40 60 80
Temperature (°C)
Fig.2 Output Voltage vs. Temperature
120
80
70
60
50
40
30
20
10
0
0.01
0.1 1
10 100
Frequency (KHz)
Fig.3 Ripple Rejection vs. Frequency
1000
CH1:1V/Div,
CH2:1V/Div,
CH3:2V/Div,
CH4:50mA/Div
Time:10mS/Div
VIN=4.1V
CH1:50mVac/Div,
CH4:100mA/Div
Time: 10µS/Div
Fig.4 Start Up Waveform Css=22nF
CH1:100µV/DIv
VIN=4.1V,
IOUT=0mA
Time: 10mS/Div
Fig.5 Load Transient Response
Fig.6 Output Noise
Leadtrend Technology Corporation
LD6912-DS-00, September 2006
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet LD6912.PDF ] | |
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