Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼
ALLDATASHEET.ES

X  

TPS70802 Datasheet(PDF) 7 Page - Texas Instruments

No. de pieza TPS70802
Descripción Electrónicos  DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
Download  29 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TPS70802 Datasheet(HTML) 7 Page - Texas Instruments

Back Button TPS70802 Datasheet HTML 3Page - Texas Instruments TPS70802 Datasheet HTML 4Page - Texas Instruments TPS70802 Datasheet HTML 5Page - Texas Instruments TPS70802 Datasheet HTML 6Page - Texas Instruments TPS70802 Datasheet HTML 7Page - Texas Instruments TPS70802 Datasheet HTML 8Page - Texas Instruments TPS70802 Datasheet HTML 9Page - Texas Instruments TPS70802 Datasheet HTML 10Page - Texas Instruments TPS70802 Datasheet HTML 11Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 29 page
background image
TPS70845, TPS70848, TPS70851, TPS70858, TPS70802
DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS
WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
SLVS301B – JUNE 2000 – REVISED OCTOBER 2002
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
detailed description
The TPS708xx low dropout regulator family provides dual regulated output voltages with independent enable
functions. These devices provide fast transient response and high accuracy with small output capacitors, while
drawing low quiescent current. Other features are integrated SVS (power-on reset, RESET) and power good
(PG1, PG2) that monitor output voltages and provide logic output to the system. These differentiated features
provide a complete power solution.
The TPS708xx, unlike many other LDOs, features very low quiescent current which remains virtually constant
even with varying loads. Conventional LDO regulators use a PNP pass element, the base current of which is
directly proportional to the load current through the regulator (IB = IC/β). The TPS708xx uses a PMOS transistor
to pass current; because the gate of the PMOS is voltage driven, operating current is low and stable over the
full load range.
pin functions
enable (EN1 and EN2)
The EN terminals are inputs which enable or shut down each respective regulator. If EN is at a voltage high
signal the respective regulator is in shutdown mode. When EN goes to voltage low, then the respective regulator
is enabled.
power good (PG1 and PG2)
The PG terminals are open drain, active high outputs which indicate the status of each respective regulator.
When the VOUT1 reaches 95% of its regulated voltage, PG1 goes to a high impedance state. When the VOUT2
reaches 95% of its regulated voltage, PG2 goes to a high impedance state. Each PG goes to a low impedance
state when its respective output voltage is pulled below 95% (i.e., over load condition) of its regulated voltage.
The open drain outputs of the PG terminals require a pullup resistor.
manual reset pin (MR)
MR is an active low input terminal used to trigger a reset condition. When MR is pulled to logic low, a POR
(RESET) occurs. The terminal has a 6-
µA pullup current to VIN1.
sense (VSENSE1, VSENSE2)
The sense terminals of fixed-output options must be connected to the regulator outputs, and the connection
should be as short as possible. Internally, the sense terminal connects to high-impedance wide-bandwidth
amplifiers through a resistor-divider network and noise pickup feeds through to the regulator output. It is
essential to route the sense connection in such a way as to minimize/avoid noise pickup. Adding RC networks
between sense terminals and VOUTS to filter noise is not recommended because it can cause the regulators
to oscillate.
FB1 and FB2
FB1 and FB2 are input terminals used for adjustable-output devices and must be connected to the external
feedback resistor divider. FB1 and FB2 connections should be as short as possible. It is essential to route them
in such a way as to minimize/avoid noise pickup. Adding RC networks between FB terminals and VOUTS to filter
noise is not recommended because it can cause the regulators to oscillate.
RESET indicator
The TPS708xx features a RESET (SVS, POR, or power on reset). RESET can be used to drive power on reset
circuitry or a low-battery indicator. RESET is an active low, open drain output which indicates the status of the
manual reset pin (MR). When MR is in high impedance state, RESET goes to a high impedance state after a
120 ms delay. To monitor VOUT1, the PG1 output pin can be connected to MR. To monitor VOUT2, the PG2 output
pin can be connected to MR. The open drain output of the RESET terminal requires a pullup resistor. If RESET
is not used, it can be left floating.


Número de pieza similar - TPS70802

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Texas Instruments
TPS70802 TI1-TPS70802 Datasheet
866Kb / 37P
[Old version datasheet]   DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
TPS70802PWP TI1-TPS70802PWP Datasheet
866Kb / 37P
[Old version datasheet]   DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
TPS70802PWPG4 TI1-TPS70802PWPG4 Datasheet
866Kb / 37P
[Old version datasheet]   DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
TPS70802PWPR TI1-TPS70802PWPR Datasheet
866Kb / 37P
[Old version datasheet]   DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
More results

Descripción similar - TPS70802

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Texas Instruments
TPS70245PWP TI-TPS70245PWP Datasheet
985Kb / 37P
[Old version datasheet]   DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
TPS70258PWP TI-TPS70258PWP Datasheet
985Kb / 37P
[Old version datasheet]   DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
TPS70245 TI-TPS70245 Datasheet
511Kb / 30P
[Old version datasheet]   DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
TPS70845 TI1-TPS70845_16 Datasheet
866Kb / 37P
[Old version datasheet]   DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
TPS70302PWPR TI-TPS70302PWPR Datasheet
874Kb / 46P
[Old version datasheet]   DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
TPS70248PWP TI-TPS70248PWP Datasheet
985Kb / 37P
[Old version datasheet]   DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
TPS70445PWPR TI-TPS70445PWPR Datasheet
892Kb / 40P
[Old version datasheet]   DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
TPS70245 TI1-TPS70245_16 Datasheet
1Mb / 37P
[Old version datasheet]   DUAL-OUTPUT, LOW DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
TPS70451 TI-TPS70451 Datasheet
571Kb / 32P
[Old version datasheet]   DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH INTEGRATED SVS FOR SPLIT VOLTAGE SYSTEMS
TPS70145 TI1-TPS70145_16 Datasheet
1Mb / 42P
[Old version datasheet]   Dual-Output Low Dropout Voltage Regulators with Power-Up Sequencing for Split-Voltage DSP Systems
More results


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


Datasheet Descarga

Go To PDF Page


Enlace URL




Política de Privacidad
ALLDATASHEET.ES
¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Intercambio de Enlaces   |   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