Os motores de busca de Datasheet de Componentes eletrônicos
  Portuguese  ▼
ALLDATASHEETPT.COM

X  

Preview PDF HTML

L99VR01 Folha de dados(PDF) 18 Page - STMicroelectronics

Nome de Peças L99VR01
Descrição Electrónicos  Automotive low dropout linear voltage regulator with configurable output voltage having 200 mA current capability
PDF  40 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L99VR01 Folha de dados(HTML) 18 Page - STMicroelectronics

Back Button L99VR01 Datasheet HTML 14Page - STMicroelectronics L99VR01 Datasheet HTML 15Page - STMicroelectronics L99VR01 Datasheet HTML 16Page - STMicroelectronics L99VR01 Datasheet HTML 17Page - STMicroelectronics L99VR01 Datasheet HTML 18Page - STMicroelectronics L99VR01 Datasheet HTML 19Page - STMicroelectronics L99VR01 Datasheet HTML 20Page - STMicroelectronics L99VR01 Datasheet HTML 21Page - STMicroelectronics L99VR01 Datasheet HTML 22Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 18 / 40 page
background image
Figure 31. Example of output voltage selection
Vs
EN
Ishort
RST
SEL1
T1
T2
GND
Rsh
Vo = 2.5 V
SEL2
TW
Vbat
SEL3
Vs
Vo
SELx pins are internally connected to GND via pull down current source.
4.4
Enable
The L99VR01 is enabled/disabled by the enable input; a high voltage signal switches the regulator ON. When the
enable pin is set low, the output is switched off, the current consumption of the device becomes as low as 1 μA
and the Fast Output Discharge circuit is activated.
It may happen that the enable pin must be driven by components supplied at a voltage different from the regulator
supply voltage. In this case the EN input pin must be set high only once Vs > 1.5 V. A solution to drive the enable
pin is depicted in the following figure.
Figure 32. Typical example of enable control
GND
Rsh
Vo
C1
C2
Co
Power supply –
supply line 1
Enable signal –
supply line 2
Vs
EN
Ishort
TW
RST
SEL1
SEL2
SEL3
RRST
T2
T1
REN
In any case, since the enable input voltage is linked to the maximum DC supply voltage (VS) applied to the
L99VR01 (-0.3 V to Vs + 0.3 V), special care must be adopted in driving EN pin to avoid exceeding absolute
maximum rating.
L99VR01
Application information
DS13649 - Rev 4
page 18/40



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40


Folha de dados Download

Go To PDF Page


Ligação URL



ALLDATASHEET é útil para você?  [ DONATE ] 

Sobre Alldatasheet   |   Publicidade   |   Contato conosco   |   Privacy Policy   |   Link para a ficha técnica    |   roca de Link   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com