Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

TPS709135DBVR Fiches technique(PDF) 6 Page - Texas Instruments

Click here to check the latest version.
No de pièce TPS709135DBVR
Description  150-mA, 30-V, UltraLow IQ, Low-Dropout Regulators with Enable
Download  11 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS709135DBVR Fiches technique(HTML) 6 Page - Texas Instruments

Back Button TPS709135DBVR Datasheet HTML 2Page - Texas Instruments TPS709135DBVR Datasheet HTML 3Page - Texas Instruments TPS709135DBVR Datasheet HTML 4Page - Texas Instruments TPS709135DBVR Datasheet HTML 5Page - Texas Instruments TPS709135DBVR Datasheet HTML 6Page - Texas Instruments TPS709135DBVR Datasheet HTML 7Page - Texas Instruments TPS709135DBVR Datasheet HTML 8Page - Texas Instruments TPS709135DBVR Datasheet HTML 9Page - Texas Instruments TPS709135DBVR Datasheet HTML 10Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 11 page
background image
TPS709xx
SBVS186 – MARCH 2012
www.ti.com
APPLICATION INFORMATION
The TPS709xx are a series of devices that belong to a new family of next-generation, low-dropout (LDO) voltage
regulators. They consume low quiescent current and deliver excellent line and load transient performance. This
performance, combined with low noise, very good PSRR with little (VIN – VOUT) headroom, makes these devices
ideal for RF portable applications, current limit, and thermal protection. The TPS709xx are specified from –40°C
to +125°C.
BOARD LAYOUT RECOMMENDATIONS TO IMPROVE PSRR AND NOISE PERFORMANCE
Input and output capacitors should be placed as close to the device pins as possible. To improve ac performance
(such as PSRR, output noise, and transient response), it is recommended that the board be designed with
separate ground planes for VIN and VOUT, with the ground plane connected only at the GND pin of the device. In
addition, the ground connection for the output capacitor should be connected directly to the device GND pin.
INTERNAL CURRENT LIMIT
The TPS709xx internal current limit helps to protect the regulator during fault conditions. During current limit, the
output sources a fixed amount of current that is largely independent of output voltage. In such a case, the output
voltage is not regulated, and can be measured as VOUT = ILIMIT × RLOAD. The PMOS pass transistor dissipates
[(VIN – VOUT) × ILIMIT] until a thermal shutdown is triggered and the device turns off. As the device cools down, it
is turned on by the internal thermal shutdown circuit. If the fault condition continues, the device cycles between
current limit and thermal shutdown; see the Thermal Information section for more details.
The TPS709xx is characterized over the recommended operating output current range up to 150 mA. The
internal current limit begins to limit the output current at a minimum of 260 mA of output current. The TPS709xx
continues to operate for output currents between 150 mA and 260 mA but some data sheet parameters may not
be met, resulting in increased power dissipation.
DROPOUT VOLTAGE
The TPS709xx uses a PMOS pass transistor to achieve low dropout. When (VIN – VOUT) is less than the dropout
voltage (VDO), the PMOS pass device is in the linear region of operation and the input-to-output resistance is the
RDS(ON) of the PMOS pass element. VDO approximately scales with the output current because the PMOS device
behaves as a resistor in dropout.
As with any linear regulator, PSRR and transient response are degraded as (VIN – VOUT) approaches dropout.
This effect is shown in in the Typical Characteristics.
TRANSIENT RESPONSE
As with any regulator, increasing the output capacitor size reduces over- and undershoot magnitude, but
increases transient response duration.
UNDERVOLTAGE LOCK-OUT (UVLO)
The TPS709xx uses an undervoltage lockout (UVLO) circuit to keep the output shut off until the internal circuitry
operates properly.
REVERSE CURRENT PROTECTION
The TPS709xx have integrated reverse current protection. Reverse current protection prevents current from
flowing from the OUT pin to the IN pin when output voltage is higher than input voltage. The reverse current
protection circuitry places the power path in high impedance when it detects that the output voltage is higher than
the input voltage. This setting reduces leakage current from the output to the input to TBD nA, typical. The
reverse current protection is always active regardless of the enable pin logic state or if the OUT pin voltage is
greater than 2.0 V. Reverse current can flow if the output voltage is less than 2.0 V and if input voltage is less
than the output voltage.
6
Submit Documentation Feedback
Copyright © 2012, Texas Instruments Incorporated


Numéro de pièce similaire - TPS709135DBVR

FabricantNo de pièceFiches techniqueDescription
logo
Texas Instruments
TPS709135DBVR TI1-TPS709135DBVR Datasheet
1Mb / 28P
[Old version datasheet]   150-mA, 30-V, 1-A IQ Voltage Regulators with Enable
TPS709135DBVR TI1-TPS709135DBVR Datasheet
1Mb / 34P
[Old version datasheet]   150-mA, 30-V, 1-關A IQ Voltage Regulators with Enable
TPS709135DBVR TI1-TPS709135DBVR Datasheet
1Mb / 34P
[Old version datasheet]   150-mA, 30-V, 1-uA IQ Voltage Regulators with Enable
TPS709135DBVR TI1-TPS709135DBVR Datasheet
1Mb / 36P
[Old version datasheet]   TPS709 150-mA, 30-V, 1-關A IQ Voltage Regulators with Enable
TPS709135DBVR TI-TPS709135DBVR Datasheet
2Mb / 39P
[Old version datasheet]   TPS709 150-mA, 30-V, 1-關A IQ Voltage Regulators with Enable
More results

Description similaire - TPS709135DBVR

FabricantNo de pièceFiches techniqueDescription
logo
Texas Instruments
TLV70433PKR TI-TLV70433PKR Datasheet
797Kb / 15P
[Old version datasheet]   24-V Input Voltage, 150-mA, Ultralow IQ Low-Dropout Regulators
TLV70130 TI1-TLV70130 Datasheet
592Kb / 13P
[Old version datasheet]   24-V Input Voltage, 150-mA, Ultralow IQ Low-Dropout Regulators
TLV701 TI-TLV701_15 Datasheet
524Kb / 14P
[Old version datasheet]   24-V Input Voltage, 150-mA, Ultralow IQ Low-Dropout Regulators
TLV701XX TI1-TLV701XX Datasheet
552Kb / 14P
[Old version datasheet]   24-V Input Voltage, 150-mA, Ultralow IQ Low-Dropout Regulators
TLV70430 TI1-TLV70430 Datasheet
655Kb / 15P
[Old version datasheet]   24-V Input Voltage, 150-mA, Ultralow IQ Low-Dropout Regulators
TPS709 TI1-TPS709 Datasheet
1Mb / 28P
[Old version datasheet]   150-mA, 30-V, 1-A IQ Voltage Regulators with Enable
TPS709 TI1-TPS709_17 Datasheet
1Mb / 34P
[Old version datasheet]   150-mA, 30-V, 1-uA IQ Voltage Regulators with Enable
TLV704 TI-TLV704_V01 Datasheet
1Mb / 23P
[Old version datasheet]   TLV704 24-V Input Voltage, 150-mA, Ultralow IQ Low-Dropout Regulators
REVISED JANUARY 2015
TPS709 TI1-TPS709_16 Datasheet
1Mb / 34P
[Old version datasheet]   150-mA, 30-V, 1-關A IQ Voltage Regulators with Enable
TPS709-Q1 TI1-TPS709-Q1_16 Datasheet
1Mb / 32P
[Old version datasheet]   150-mA, 30-V, 1-關A IQ Voltage Regulators with Enable
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
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