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

X  

TPS78915DBVT Datasheet(PDF) 3 Page - Texas Instruments

Click here to check the latest version.
No. de pieza TPS78915DBVT
Descripción Electrónicos  ULTRALOW-POWER LOW-NOISE 100-mA LOW-DROPOUT LINEAR REGULATORS
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

TPS78915DBVT Datasheet(HTML) 3 Page - Texas Instruments

  TPS78915DBVT Datasheet HTML 1Page - Texas Instruments TPS78915DBVT Datasheet HTML 2Page - Texas Instruments TPS78915DBVT Datasheet HTML 3Page - Texas Instruments TPS78915DBVT Datasheet HTML 4Page - Texas Instruments TPS78915DBVT Datasheet HTML 5Page - Texas Instruments TPS78915DBVT Datasheet HTML 6Page - Texas Instruments TPS78915DBVT Datasheet HTML 7Page - Texas Instruments TPS78915DBVT Datasheet HTML 8Page - Texas Instruments TPS78915DBVT Datasheet HTML 9Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 3 / 16 page
background image
TPS78915, TPS78918, TPS78925, TPS78928, TPS78930
ULTRALOW-POWER LOW-NOISE 100-mA
LOW-DROPOUT LINEAR REGULATORS
SLVS300A – SEPTEMBER 2000 – REVISED MAY 2001
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
detail description
The TPS789xx uses a PMOS pass element to dramatically reduce both dropout voltage and supply current over
more conventional PNP-pass-element LDO designs. The PMOS pass element is a voltage-controlled device
and, unlike a PNP transistor, it does not require increased drive current as output current increases. Supply
current in the TPS789xx is essentially constant from no load to maximum load.
The TPS789xx family of low-dropout (LDO) regulators have been optimized for use in battery-operated
equipment. They feature extremely low dropout voltages, low output noise, low quiescent current (17
µA
typically), and enable inputs to reduce supply currents to 1
µA when the regulators are turned off.
The internal voltage reference is a key source of noise in a LDO regulator. The TPS789xx has a BYPASS pin
which is connected to the voltage reference through a 150-k
Ω internal resistor. The 150-kΩ internal resistor,
in conjunction with an external bypass capacitor connected to the BYPASS pin, creates a low pass filter to
reduce the voltage reference noise and, therefore, the noise at the regulator output. Note that the output will
start up slower as the bypass capacitance increases due to the RC time constant at the bypass pin that is created
by the internal 150-k
Ω resistor and external capacitor.
Current limiting and thermal protection prevent damage by excessive output current and/or power dissipation.
The device switches into a constant-current mode at approximately 350 mA; further load reduces the output
voltage instead of increasing the output current. The thermal protection shuts the regulator off if the junction
temperature rises above approximately 165
°C. Recovery is automatic when the junction temperature drops
approximately 25
°C below the high temperature trip point. The PMOS pass element includes a back gate diode
that conducts reverse current when the input voltage level drops below the output voltage level.
A voltage of 1.7 V or greater on the EN input will disable the TPS789xx internal circuitry, reducing the supply
current to 1
µA. A voltage of less than 0.9 V on the EN input will enable the TPS789xx and will enable normal
operation to resume. The EN input does not include any deliberate hysteresis, and it exhibits an actual switching
threshold of approximately 1.5 V.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Input voltage range
(see Note 1)
– 0.3 V to 13.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range at EN
–0.3 V to VI + 0.3 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage on OUT
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Peak output current
Internally limited
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ESD rating, HBM
2 kV
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation
See Dissipation Rating Table
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating virtual junction temperature range, TJ
– 40
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
– 65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to network ground terminal.
DISSIPATION RATING TABLE
BOARD
PACKAGE
R
θJC
R
θJA
DERATING FACTOR
ABOVE TA = 25°C
TA ≤ 25°C
POWER RATING
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
Low K‡
DBV
65.8
°C/W
259
°C/W
3.9 mW/
°C
386 mW
212 mW
154 mW
High K§
DBV
65.8
°C/W
180
°C/W
5.6 mW/
°C
555 mW
305 mW
222 mW
‡ The JEDEC Low K (1s) board design used to derive this data was a 3 inch x 3 inch, two layer board with 2 ounce copper traces on top of the board.
§ The JEDEC High K (2s2p) board design used to derive this data was a 3 inch x 3 inch, multilayer board with 1 ounce internal power and ground
planes and 2 ounce copper traces on top and bottom of the board.


Número de pieza similar - TPS78915DBVT

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Texas Instruments
TPS78915DBVT TI-TPS78915DBVT Datasheet
481Kb / 20P
[Old version datasheet]   ULTRALOW-POWER LOW-NOISE 100-mA LOW-DROPOUT LINEAR REGULATORS
TPS78915DBVTG4 TI-TPS78915DBVTG4 Datasheet
481Kb / 20P
[Old version datasheet]   ULTRALOW-POWER LOW-NOISE 100-mA LOW-DROPOUT LINEAR REGULATORS
More results

Descripción similar - TPS78915DBVT

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Texas Instruments
TPS78930DBVTG4 TI-TPS78930DBVTG4 Datasheet
481Kb / 20P
[Old version datasheet]   ULTRALOW-POWER LOW-NOISE 100-mA LOW-DROPOUT LINEAR REGULATORS
TPS789 TI-TPS789 Datasheet
481Kb / 20P
[Old version datasheet]   ULTRALOW-POWER LOW-NOISE 100-mA LOW-DROPOUT LINEAR REGULATORS
TPS76901-Q1 TI-TPS76901-Q1 Datasheet
243Kb / 16P
[Old version datasheet]   ULTRALOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS
TPS76912QDBVRG4Q1 TI-TPS76912QDBVRG4Q1 Datasheet
1Mb / 22P
[Old version datasheet]   Ultralow-Power 100-mA Low-Dropout Linear Regulators
TPS76901-HT TI1-TPS76901-HT Datasheet
580Kb / 21P
[Old version datasheet]   ULTRALOW-POWER 100-mA LOW DROPOUT LINEAR REGULATORS
TPS76901 TI-TPS76901 Datasheet
235Kb / 16P
[Old version datasheet]   ULTRALOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS
TPS76901 TI1-TPS76901_16 Datasheet
893Kb / 24P
[Old version datasheet]   ULTRALOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS
TPS769-Q1 TI-TPS769-Q1 Datasheet
1Mb / 22P
[Old version datasheet]   Ultralow-Power 100-mA Low-Dropout Linear Regulators
TPS76930QDBVRQ1 TI1-TPS76930QDBVRQ1 Datasheet
1Mb / 22P
[Old version datasheet]   Ultralow-Power 100-mA Low-Dropout Linear Regulators
TPS76901 TI1-TPS76901_13 Datasheet
927Kb / 24P
[Old version datasheet]   ULTRALOW-POWER 100-mA LOW-DROPOUT LINEAR REGULATORS
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


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