Texas Instruments TPS61080/81-147 Evaluation Board TPS61080/81EVM-147 TPS61080EVM-147 TPS61080EVM-147 Scheda Tecnica
Codici prodotto
TPS61080EVM-147
Vin 5V
L1 4.7 µH
C1
4.7 F
m
C3
33 pF
V
O
12 V/250 mA
R1
437 kW
Cs
47 nF
R3
100 Ω
R2
49.9 kW
4.7 µF
TPS61081
L1: TDK VLCF5020T-4R7N1R7-1
C3: Feed forward capacitor for stability
C1: Murata GRM188R60J105K
R3: Noise decoupling resistor
C2: Murata GRM219R61C475K
Cs: Soft start programming capacitor
L
VIN
EN
FSW
SS
GND
GND
SW
OUT
FB
PGND
FSW
SW
OUT
PGND
EN
GND
L
VIN
SS
FB
TOP VIEW
10-PIN 3mm x 3mm x 1mm QFN
Thermal
Pad
SLVS644D – FEBRUARY 2006 – REVISED APRIL 2013
HIGH VOLTAGE DC/DC BOOST CONVERTER WITH 0.5-A/1.3-A INTEGRATED SWITCH
Check for Samples:
1
FEATURES
DESCRIPTION
2
•
2.5-V to 6-V Input Voltage Range
The TPS61080/1 is a 1.2MHz/600kHz fixed frequency
•
Up to 27-V Output Voltage
boost regulator designed for high integration, which
•
0.5-A Integrated Switch (TPS61080)
integrates a power switch, an input/output isolation
1.3-A Integrated Switch (TPS61081)
switch and a power diode. When a short circuit
condition is detected, the isolation switch opens up to
condition is detected, the isolation switch opens up to
•
12 V/400 mA and 24 V/170 mA From 5-V Input
disconnect the output from the input. As a result, the
(TYP)
IC protects itself and the input source from any pin,
•
Integrated Power Diode
except VIN, from being shorted to ground. The
•
1.2-MHz/600-kHz Selectable Fixed Switching
isolation switch also disconnects the output from input
Frequency
during shutdown to prevent any leakage current.
Other provisions for protection include 0.5A/1.3A
Other provisions for protection include 0.5A/1.3A
•
Input to Output Isolation
peak-to-peak over current protection, programmable
•
Short-Circuit Protection
soft start (SS), over voltage protection (OVP), thermal
•
Programmable Soft Start
shutdown and 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
USB output. The output can be boosted up to 27V.
USB output. The output can be boosted up to 27V.
•
10-Pin 3 mm×3 mm QFN Package
TPS61080/1 can provide the supply voltages of
OLED, TFT-LCD bias, 12V and 24V power rails. The
OLED, TFT-LCD bias, 12V and 24V power rails. The
APPLICATIONS
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
applications.
applications.
Converter
•
White LED Backlight for Media Form Factor
ORDERING INFORMATION
Display
T
A
OVERCURRENT
PACKAGE
PACKAGE
•
OLED Power Supply
LIMIT
MARKING
•
xDSL Applications
0.5A(min)
TPS61080DRCR
BCN
•
TFT-LCD Bias Supply
1.3A(min)
TPS61081DRCR
BCO
–40°C
to 85°C
0.5A(min)
TPS61080DRCT
BCN
•
White LED Flash Light
1.3A(min)
TPS61081DRCT
BCO
TYPICAL APPLICATION
Figure 1. 5V to 12V, 250mA Step-Up DC/DC
Converter
1
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.
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006–2013, 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.
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.