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

X  

TPS54260MDRCTEP Datasheet(PDF) 11 Page - Texas Instruments

Click here to check the latest version.
No. de pieza TPS54260MDRCTEP
Descripción Electrónicos  3.5-V to 60-V Step-Down Converter With Eco-mode Control Scheme
Download  50 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TPS54260MDRCTEP Datasheet(HTML) 11 Page - Texas Instruments

Back Button TPS54260MDRCTEP Datasheet HTML 7Page - Texas Instruments TPS54260MDRCTEP Datasheet HTML 8Page - Texas Instruments TPS54260MDRCTEP Datasheet HTML 9Page - Texas Instruments TPS54260MDRCTEP Datasheet HTML 10Page - Texas Instruments TPS54260MDRCTEP Datasheet HTML 11Page - Texas Instruments TPS54260MDRCTEP Datasheet HTML 12Page - Texas Instruments TPS54260MDRCTEP Datasheet HTML 13Page - Texas Instruments TPS54260MDRCTEP Datasheet HTML 14Page - Texas Instruments TPS54260MDRCTEP Datasheet HTML 15Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 50 page
background image
11
TPS54260-EP
www.ti.com
SLVSDN9 – DECEMBER 2016
Product Folder Links: TPS54260-EP
Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
7 Detailed Description
7.1 Overview
The TPS54260-EP device is a 60-V, 2.5-A, step-down (buck) regulator with an integrated high-side n-channel
MOSFET. To improve performance during line and load transients the device implements a constant frequency,
current mode control which reduces output capacitance and simplifies external frequency compensation design.
The wide switching frequency of 100 kHz to 2500 kHz allows for efficiency and size optimization when selecting
the output filter components. The switching frequency is adjusted using a resistor to ground on the RT/CLK pin.
The device has an internal phase lock loop (PLL) on the RT/CLK pin that is used to synchronize the power
switch turn on to a falling edge of an external system clock.
The TPS54260-EP has a default start up voltage of approximately 2.5 V. The EN pin has an internal pull-up
current source that can be used to adjust the input voltage under voltage lockout (UVLO) threshold with two
external resistors. In addition, the pull up current provides a default condition. When the EN pin is floating the
device operates. The operating current is 138 μA when not switching and under no load. When the device is
disabled, the supply current is 1.3 μA.
The integrated 200-m
Ω high-side MOSFET allows for high efficiency power supply designs capable of delivering
2.5 A of continuous current to a load. The TPS54260-EP reduces the external component count by integrating
the boot recharge diode. The bias voltage for the integrated high-side MOSFET is supplied by a capacitor on the
BOOT to PH pin. The boot capacitor voltage is monitored by an UVLO circuit and turns the high-side MOSFET
off when the boot voltage falls below a preset threshold. The TPS54260-EP operates at high duty cycles
because of the boot UVLO. The output voltage can be stepped down to as low as the 0.8-V reference.
The TPS54260-EP has a power good comparator (PWRGD) which asserts when the regulated output voltage is
less than 92% or greater than 109% of the nominal output voltage. The PWRGD pin is an open drain output
which deasserts when the VSENSE pin voltage is between 94% and 107% of the nominal output voltage
allowing the pin to transition high when a pull-up resistor is used.
The TPS54260-EP minimizes excessive output overvoltage (OV) transients by taking advantage of the OV power
good comparator. When the OV comparator is activated, the high-side MOSFET is turned off and masked from
turning on until the output voltage is lower than 107%.
The SS/TR (slow-start/tracking) pin is used to minimize inrush currents or provide power supply sequencing
during power up. A small value capacitor should be coupled to the pin to adjust the slow-start time. A resistor
divider can be coupled to the pin for critical power supply sequencing requirements. The SS/TR pin is discharged
before the output powers up. This discharging ensures a repeatable restart after an over-temperature fault,
UVLO fault or a disabled condition.
The TPS54260-EP, also, discharges the slow-start capacitor during overload conditions with an overload
recovery circuit. The overload recovery circuit slow-starts the output from the fault voltage to the nominal
regulation voltage once a fault condition is removed. A frequency foldback circuit reduces the switching
frequency during startup and overcurrent fault conditions to help control the inductor current.


Número de pieza similar - TPS54260MDRCTEP

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Texas Instruments
TPS54260MDRCTEP TI1-TPS54260MDRCTEP Datasheet
1Mb / 50P
[Old version datasheet]   3.5-V to 60-V Step-Down Converter With Eco-mode Control Scheme
More results

Descripción similar - TPS54260MDRCTEP

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Texas Instruments
TPS54260-EP TI1-TPS54260-EP_17 Datasheet
1Mb / 50P
[Old version datasheet]   3.5-V to 60-V Step-Down Converter With Eco-mode Control Scheme
TPS54240-Q1 TI1-TPS54240-Q1_16 Datasheet
2Mb / 52P
[Old version datasheet]   3.5-V to 42-V STEP-DOWN SWIFT DC/DC CONVERTER WITH Eco-mode CONTROL SCHEME
TPS54260-Q1 TI1-TPS54260-Q1 Datasheet
1Mb / 48P
[Old version datasheet]   3.5 V to 60 V STEP DOWN CONVERTER WITH ECO-MODE?
TPS54260QDGQRQ1 TI1-TPS54260QDGQRQ1 Datasheet
2Mb / 50P
[Old version datasheet]   3.5 V to 60 V STEP DOWN CONVERTER WITH ECO-MODE
TPS54260QDGQRQ1 TI-TPS54260QDGQRQ1 Datasheet
2Mb / 50P
[Old version datasheet]   3.5 V to 60 V STEP DOWN CONVERTER WITH ECO-MODE?
TPS54260-Q1 TI-TPS54260-Q1_15 Datasheet
1Mb / 52P
[Old version datasheet]   TPS54260-Q1 3.5-V to 60-V Step-Down Converter With Eco-mode?
TPS54260-Q1 TI1-TPS54260-Q1_16 Datasheet
2Mb / 52P
[Old version datasheet]   TPS54260-Q1 3.5-V to 60-V Step-Down Converter With Eco-mode
TPS54360 TI1-TPS54360 Datasheet
314Kb / 10P
[Old version datasheet]   60 V Input, 3.5 A, Step Down Converter with Eco-mode?
TPS54240-Q1 TI-TPS54240-Q1_15 Datasheet
2Mb / 52P
[Old version datasheet]   3.5-V to 42-V STEP-DOWN SWIFT??DC/DC CONVERTER WITH Eco-mode??CONTROL
TPS54240 TI1-TPS54240_16 Datasheet
2Mb / 56P
[Old version datasheet]   3.5-V to 42-V Step-Down DC - DC Converter With Eco-Mode
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 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50


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