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PDF ST619LB Data sheet ( Hoja de datos )
| Número de pieza | ST619LB | |
| Descripción | DC-DC CONVERTER REGULATED 5V CHARGE PUMP | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ST619LB (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
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ST619LB
SERIES
DC-DC CONVERTER REGULATED 5V CHARGE PUMP
s REGULATED 5V ±4% CHARGE PUMP
s OUTPUT CURRENT GUARANTEED OVER
TEMPERATURE : 20mA (VI ≥ 2V ),
30mA (VI ≥ 3V )
s NO INDUCTORS; VERY LOW EMI NOISE
s USES SMALL, INEXPENSIVE CAPACITORS
s LOGIC CONTROLLED 1µA MAX
SHUT-DOWN SUPPLY CURRENT
s SHUT DOWN DISCONNECTS LOAD FROM
INPUT
s AVAILABLE IN SO-8 AND DIP-8 PACKAGES
DESCRIPTION
The ST619LB is a step-up charge pump DC-DC
converter which delivers a regulated 5V ±4%
output at 30mA and over temperature. The input
voltage range is 2V to 3.6V (two battery cells).
It requires only four external capacitor: two 0.22µF
flying capacitors, and 10µF capacitors at the input
and output.
DIP-8
SO-8
Low operating supply current (typ 200µA) make
the device ideal for small, portable and battery
powered applications. When shut down the load
is disconnected from the input and the supply
current is typically 0.02µA. The ST619LB is
available in SO-8 and DIP-8 packages.
SCHEMATIC DIAGRAM
May 2001
1/9
1 page  
Figure 7 : Output Voltage vs Input Voltage
ST619LB SERIES
Figure 10 : Line Transient Response
Figure 8 : Start-up
RL=250Ω
Figure 11 : Load Transient Response
Figure 9 : Output Voltage vs Temperature
VI=3V, IO=0 to 25mA
5/9
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet ST619LB.PDF ] | |
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