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Número de pieza | LDO55 | |
Descripción | IP Library: Very Low Power/ Adjustable Output Voltage/ 25mA Low Dropout Voltage Regulator | |
Fabricantes | STMicroelectronics | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de LDO55 (archivo pdf) en la parte inferior de esta página. Total 2 Páginas | ||
No Preview Available ! LDO_55
IP Library: Very Low Power, Adjustable Output Voltage²,
25mA Low Dropout Voltage Regulator
PRODUCT PREVIEW
s ANALOG BASEBAND REGULATOR
s VERY LOW DROPOUT VOLTAGE : 60mV
s HIGH PSRR : 60dB
s LOW QUIESCENT CURRENT
s 20µA STD-BY MODE CURRENT
s NO CURRENT IN POWER DOWN MODE
s SHORT CIRCUIT PROTECTION
s SMALL DECOUPLING CERAMIC CAPACITOR
TYPICAL APPLICATIONS
– Cellular and Cordless phones supplied by 1 cell
Lithium-ion battery / 3 cells Ni-MH or Ni-Cd
battery.
– PDA (Personal Digital Assistant), Smart phone.
– Portable equipment.
– Supply for Digital (DSP/Microcontroller) devices.
Figure 2 : Typical Application Circuit
APPLICATION NOTE
An external capacitor (COUT = 1µF typical) with an
equivalent serial resistance (ESR) in the range
0.02 to 0.6Ω is used to ensure stability.
Figure 1 : Block Diagram
IN ?
PWRDWN ?
STDBY ?
VREF
? OUT
LDO_55
VIN
Power Down Mode
ON
OFF
→
→
Stand-by Mode
Stand-by Mode →
Active Mode →
IN
?
PWRDWN
?
STDBY
?
OUT
?
LDO_55
GND
?
VOUT
COUT
1µF
ESR1
June 2002
This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
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1 page |
Páginas | Total 2 Páginas | |
PDF Descargar | [ Datasheet LDO55.PDF ] |
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