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

X  

TPS70175-Q1 Fiches technique(PDF) 8 Page - Texas Instruments

Click here to check the latest version.
No de pièce TPS70175-Q1
Description  DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATOR WITH POWER-UP SEQUENCING FOR SPLIT-VOLTAGE DSP SYSTEMS
Download  31 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS70175-Q1 Fiches technique(HTML) 8 Page - Texas Instruments

Back Button TPS70175-Q1 Datasheet HTML 4Page - Texas Instruments TPS70175-Q1 Datasheet HTML 5Page - Texas Instruments TPS70175-Q1 Datasheet HTML 6Page - Texas Instruments TPS70175-Q1 Datasheet HTML 7Page - Texas Instruments TPS70175-Q1 Datasheet HTML 8Page - Texas Instruments TPS70175-Q1 Datasheet HTML 9Page - Texas Instruments TPS70175-Q1 Datasheet HTML 10Page - Texas Instruments TPS70175-Q1 Datasheet HTML 11Page - Texas Instruments TPS70175-Q1 Datasheet HTML 12Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 31 page
background image
TPS70175-Q1
SGLS300B – MARCH 2005 – REVISED SEPTEMBER 2010
www.ti.com
Table 2. TERMINAL FUNCTIONS
TERMINAL
I/O
DESCRIPTION
NAME
NO.
EN
6
I
Active low enable
GND
8
Ground
MR1
4
I
Manual reset input 1, active low, pulled up internally
MR2
5
I
Manual reset input 2, active low, pulled up internally
NC
1, 11, 20
No connection
Open drain output, low when VOUT1 voltage is less than 95% of the nominal regulated
PG1
16
O
voltage
RESET
15
O
Open drain output, SVS (power-on reset) signal, active low
Power-up sequence control: SEQ = High, VOUT2 powers up first;
SEQ
7
I
SEQ = Low, VOUT1 powers up first, SEQ terminal pulled up internally.
VIN1
2, 3
I
Input voltage of regulator 1
VIN2
9, 10
I
Input voltage of regulator 2
VOUT1
18, 19
O
Output voltage of regulator 1
VOUT2
12, 13
O
Output voltage of regulator 2
VSENSE2/FB2
14
I
Regulator 2 output voltage sense
VSENSE1/FB1
17
I
Regulator 1 output voltage sense
Detailed Description
The TPS70175 low dropout regulator provides dual regulated output voltages for DSP applications which require
high performance power management solutions. These devices provide fast transient response and high
accuracy with small output capacitors, while drawing low quiescent current. Programmable sequencing provides
a power solution for DSPs without any external component requirements. This reduces the component cost and
board space while increasing total system reliability. The TPS70175 has an enable feature which puts the device
in sleep mode reducing the input currents to less than 3 mA. Other features are integrated SVS (power-on reset,
RESET) and power good (PG1) that monitor output voltages and provide logic output to the system. These
differentiated features provide a complete DSP power solution.
The TPS70175, unlike many other LDOs, feature 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/b). The TPS70175 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
The EN terminal is an input which enables or shuts down the device. If EN is at a voltage high signal, the device
is in shutdown mode. When EN goes to voltage low, the device is enabled.
Sequence
The SEQ terminal is an input that programs which output voltage (VOUT1 or VOUT2) is turned on first. When the
device is enabled and the SEQ terminal is pulled high or left open, VOUT2 turns on first and VOUT1 remains off until
VOUT2 reaches approximately 83% of its regulated output voltage. At that time, VOUT1 is turned on. If VOUT2 is
pulled below 83% (for example, an overload condition) VOUT1 is turned off. These terminals have a 6-mA pullup
current to VIN1.
Pulling the SEQ terminal low reverses the power-up order and VOUT1 is turned on first. For detailed timing
diagrams, see Figure 26 through Figure 30.
8
Submit Documentation Feedback
Copyright © 2005–2010, Texas Instruments Incorporated
Product Folder Link(s): TPS70175-Q1


Numéro de pièce similaire - TPS70175-Q1

FabricantNo de pièceFiches techniqueDescription
logo
Texas Instruments
TPS701 TI1-TPS701 Datasheet
1Mb / 42P
[Old version datasheet]   Dual-Output Low Dropout Voltage Regulators with Power-Up Sequencing for Split-Voltage DSP Systems
TPS70102 TI-TPS70102 Datasheet
523Kb / 34P
[Old version datasheet]   DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH POWER UP SEQUENCING FOR SPLIT VOLTAGE DSP SYSTEMS
TPS70102 TI1-TPS70102 Datasheet
1Mb / 42P
[Old version datasheet]   Dual-Output Low Dropout Voltage Regulators with Power-Up Sequencing for Split-Voltage DSP Systems
TPS70102 TI-TPS70102 Datasheet
1Mb / 42P
[Old version datasheet]   Dual-Output Low Dropout Voltage Regulators with Power-Up Sequencing for Split-Voltage DSP Systems
REVISED AUGUST 2010
TPS70102PWP TI-TPS70102PWP Datasheet
523Kb / 34P
[Old version datasheet]   DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH POWER UP SEQUENCING FOR SPLIT VOLTAGE DSP SYSTEMS
More results

Description similaire - TPS70175-Q1

FabricantNo de pièceFiches techniqueDescription
logo
Texas Instruments
TPS70751-EP TI1-TPS70751-EP Datasheet
988Kb / 41P
[Old version datasheet]   DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATOR WITH POWER-UP SEQUENCING FOR SPLIT-VOLTAGE DSP SYSTEMS
TPS70751-EP TI-TPS70751-EP_15 Datasheet
889Kb / 42P
[Old version datasheet]   DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATOR WITH POWER-UP SEQUENCING FOR SPLIT-VOLTAGE DSP SYSTEMS
TPS70745 TI1-TPS70745_16 Datasheet
892Kb / 40P
[Old version datasheet]   Dual-Output, Low Dropout Voltage Regulators with Power-Up Sequencing for Split-Voltage DSP Systems
TPS70751 TI-TPS70751_15 Datasheet
831Kb / 40P
[Old version datasheet]   Dual-Output, Low Dropout Voltage Regulators with Power-Up Sequencing for Split-Voltage DSP 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
TPS70745 TI-TPS70745 Datasheet
505Kb / 34P
[Old version datasheet]   DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH POWER UP SEQUENCING FOR SPLIT VOLTAGE DSP SYSTEMS
TPS70145 TI-TPS70145_15 Datasheet
1Mb / 42P
[Old version datasheet]   Dual-Output Low Dropout Voltage Regulators with Power-Up Sequencing for Split-Voltage DSP Systems
REVISED AUGUST 2010
TPS70345-EP TI1-TPS70345-EP_16 Datasheet
976Kb / 33P
[Old version datasheet]   DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH POWER UP SEQUENCING FOR SPLIT VOLTAGE DSP SYSTEMS
TPS70145 TI-TPS70145 Datasheet
523Kb / 34P
[Old version datasheet]   DUAL-OUTPUT LOW-DROPOUT VOLTAGE REGULATORS WITH POWER UP SEQUENCING FOR SPLIT VOLTAGE DSP SYSTEMS
TPS70345 TI-TPS70345 Datasheet
575Kb / 35P
[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 30 31


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