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TPS62751DSKR Datasheet(PDF) 1 Page - Texas Instruments

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Part # TPS62751DSKR
Description  High Efficiency Step-Down Converter for USB Applications
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS62751DSKR Datasheet(HTML) 1 Page - Texas Instruments

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VIN
GND
EN
FB
Ilim_L
TPS62750
CO
L
CIN
2.2 µH
VIN 5.0V
R4
R1
R2
Cff
L1
H/L
Ilim_U
R3
AVIN
PGND
CBULK
VOUT 3.6V
TPS62750, TPS62751
www.ti.com ................................................................................................................................................. SLVS955A – JULY 2009 – REVISED SEPTEMBER 2009
High Efficiency Step-Down Converter for USB Applications
Check for Samples :TPS62750, TPS62751
1
FEATURES
APPLICATIONS
USB Wireless Modems
Efficiency > 90% at Nominal Operating
Conditions
Portable USB peripherals
Handheld Computers
Programmable Average Input Current Limits
for USB Applications
DESCRIPTION
50mA to 300mA for Low Current Limit
Range
The
TPS6275x
device
is
a
highly
efficient
synchronous step down dc-dc converter optimized for
300mA to 1.3A for High Current Limit
USB powered portable applications. It can provide up
Range
to 1300mA average input current and is ideal for
±10% Current Accuracy
applications connected to a USB host.
Stable Output Voltage for Load Transients to
With an input voltage range of 2.9 V to 6.0V, the
Minimize Overshoot at Load Step Response
device supports batteries with extended voltage
Hot Plug and Reverse Current Protection
range and is ideal for powering USB applications
Automatic PFM/PWM Mode transition
where USB compliance is required.
(TPS62750)
The TPS62750 operates at 2.25-MHz fixed switching
Forced PWM for Noise Sensitive Applications
frequency and enters Power Save Mode operation at
(TPS62751)
light load currents to maintain high efficiency over the
entire load current range. The TPS62751 operates in
VIN Range From 2.9V to 6V
Forced PWM mode allowing use in applications that
Adjustable VOUT From 0.8V to 0.85×VIN
are noise sensitive. An output discharge allows the
Softstart for Inrush Current Prevention
load to discharge in shutdown.
2.25 MHz Fixed Frequency Operation
The 10% accurate average input current limit can be
Short Cicruit and Thermal Shutdown
programmed with an external resistor, allowing use in
applications such as USB, where the current drawn
Protection
from the bus must be limited to 500mA.
Available in a 2.5 × 2.5 10 pin SON Package
The TPS6275x allows the use of small inductors and
capacitors to achieve a small solution size. The
TPS6275x is available in a 2,5mm × 2,5mm 10-pin
SON package.
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.
PRODUCTION DATA information is current as of publication date.
Copyright © 2009, 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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