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PDF LD2979 Data sheet ( Hoja de datos )
| Número de pieza | LD2979 | |
| Descripción | VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LD2979 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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LD2979
® SERIES
VERY LOW DROP
VOLTAGE REGULATORS WITH INHIBIT
s VERY LOW DROPOUT VOLTAGE
(0.2V TYP. AT 50mA LOAD)
s VERY LOW QUIESCENT CURRENT
(TYP. 500µA AT50mA LOAD)
s OUTPUT CURRENT UP TO 50 mA
s LOGIC-CONTROLLED ELECTRONIC
SHUTDOWN
s OUTPUT VOLTAGES OF 2.85; 3.0; 3.2; 3.3;
3.8; 5.0V
s INTERNAL CURRENT AND THERMAL LIMIT
s SUPPLY VOLTAGE REJECTION: 63dB (TYP)
s ONLY 1µF FOR STABILITY
s SELECTION AT 25 oC
s TEMPERATURE RANGE: -25 TO 125 oC
s PACKAGE AVAILABLE:SOT23-5L AND TO-92
SOT23-5L
DESCRIPTION
The LD2979 series are very Low Drop regulators
available in SOT23-5L and TO-92.
The very low drop-voltage and the very low
quiescent current make them particularly suitable
for low noise, low power applications and in
battery powered systems.
Shutdown Logic Control function is available on
five pin version (TTL compatible). This means
TO-92
that when the device is used as local regulator, it
is possible to put a part of the board in standby,
decreasing the total power consumption.
SCHEMATIC DIAGRAM
April 2000
1/9
1 page  
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Short Circuit Current vs Dropout Voltgae
S.V.R. vs Frequency
LD2979
Inhibit Current vs Temperature
Inhibit Voltage vs Temperature
Load Transient Response
Vout
Vou t
20mV/ DIV
Iout Iout
20mA/ DIV
Vin: 5V, Iout: 1mA to 50mA, Time : 10us/DIV
CO = 10µF (ESR=1Ω at 1KHz)
Load Transient Response
Vout
Vou t
20mV/ DIV
Iout Iout
20mA/ DIV
Vin: 5V, Iout: 50mA to 1mA, Time : 10us/DIV
CO = 10µF (ESR=1Ω at 1KHz)
5/9
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet LD2979.PDF ] | |
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