參數(shù)資料
型號(hào): TPS61081DRCTG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: 1.3 A SWITCHING REGULATOR, 1500 kHz SWITCHING FREQ-MAX, PDSO10
封裝: 3 X 3 MM, 1 MM HEIGHT, GREEN, PLASTIC, QFN-10
文件頁(yè)數(shù): 1/25頁(yè)
文件大?。?/td> 925K
代理商: TPS61081DRCTG4
www.ti.com
FEATURES
DESCRIPTION
APPLICATIONS
TYPICAL APPLICATION
FSW
SW
OUT
PGND
EN
GND
L
VIN
SS
FB
TOP VIEW
10-PIN3mmx3mmx1mmQFN
Thermal
Pad
Vin5V
L14.7H
C1
4.7 F
m
C3
33 pF
VO 12V/250mA
R1
437kW
Cs
47nF
R3
100
R2
49.9kW
4.7 F
TPS61081
L1: TDKVLCF5020T-4R7N1R7-1
C3:Feedforwardcapacitorforstability
C1:MurataGRM188R60J105K
R3:Noisedecouplingresistor
C2:MurataGRM219R61C475K
Cs:Softstartprogrammingcapacitor
L
VIN
EN
FSW
SS
GND
SW
OUT
FB
PGND
SLVS644B – FEBRUARY 2006 – REVISED JANUARY 2007
HIGH VOLTAGE DC/DC BOOST CONVERTER WITH 0.5-A/1.3-A INTEGRATED SWITCH
2.5-V to 6-V Input Voltage Range
The
TPS61080/1
is
a
1.2MHz/600kHz
fixed
frequency
boost
regulator
designed
for
high
Up to 27-V Output Voltage
integration, which integrates a power switch, an
0.5-A Integrated Switch (TPS61080)
input/output isolation switch and a power diode.
1.3-A Integrated Switch (TPS61081)
When a short circuit condition is detected, the
12 V/400 mA and 24 V/170 mA From 5-V Input
isolation switch opens up to disconnect the output
(TYP)
from the input. As a result, the IC protects itself and
the input source from any pin, except VIN, from
Integrated Power Diode
being shorted to ground. The isolation switch also
1.2-MHz/600-kHz Selectable Fixed Switching
disconnects the output from input during shutdown to
Frequency
prevent any leakage current. Other provisions for
Input to Output Isolation
protection
include
0.5A/1.3A
peak-to-peak
over
current protection, programmable soft start (SS),
Short-Circuit Protection
over voltage protection (OVP), thermal shutdown and
Programmable Soft Start
under voltage lockout (UVLO).
Overvoltage Protection
The IC operates from input supplies including single
Up to 87% Efficiency
Li-ion battery, triple NiMH, and regulated 5V, such as
10-Pin 3 mm×3 mm QFN Package
USB output. The output can be boosted up to 27V.
TPS61080/1 can provide the supply voltages of
OLED, TFT-LCD bias, 12V and 24V power rails. The
output of TPS61080/1 can also be configured as a
3.3V to 12V, 5V to 12V and 24V Boost
current source to power up to 7 WLED in flash light
Converter
applications.
White LED Backlight for Media Form Factor
Display
ORDERING INFORMATION
OLED Power Supply
TA
OVERCURRENT
PACKAGE
xDSL Applications
LIMIT
MARKING
TFT-LCD Bias Supply
0.5A(min)
TPS61080DRCR
BCN
White LED Flash Light
1.3A(min)
TPS61081DRCR
BCO
–40
°C
to 85
°C
0.5A(min)
TPS61080DRCT
BCN
1.3A(min)
TPS61081DRCT
BCO
Figure 1. 5V to 12V, 250mA Step-Up DC/DC
Converter
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright 2006–2007, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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