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TPS62152 Fiches technique(PDF) 1 Page - Texas Instruments

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No de pièce TPS62152
Description  3-17V 1A Step-Down Converter in 3x3 QFN Package
Download  33 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS62152 Fiches technique(HTML) 1 Page - Texas Instruments

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22uF
1.8V / 1A
10uF
2.2µH
(3 .. 17)V
3.3nF
TPS62151
PVIN
AVIN
EN
SS/TR
DEF
FSW
SW
VOS
PG
FB
AGND
PGND
100k
TPS62150
TPS62151, TPS62152, TPS62153
www.ti.com
SLVSAL5
– NOVEMBER 2011
3-17V 1A Step-Down Converter in 3x3 QFN Package
Check for Samples: TPS62150, TPS62151, TPS62152, TPS62153
1
FEATURES
DESCRIPTION
The TPS6215X family is an easy to use synchronous
DCS-ControlTM Topology
step
down
DC-DC
converter
optimized
for
Input Voltage Range: 3 to 17V
applications with high power density. A high switching
Up to 1A Output Current
frequency of typically 2.5MHz allows the use of small
inductors and provides fast transient response as well
Adjustable Output Voltage from 0.9 to 6V
as high output voltage accuracy by utilization of the
Pin-Selectable Output Voltage (nominal, + 5%)
DCS-Control
™ topology.
Programmable Soft Start and Tracking
With its wide operating input voltage range of 3V to
Seamless Power Save Mode Transition
17V, the devices are ideally suited for systems
Quiescent Current of 17
µA (typ.)
powered from either a Li-Ion or other batteries as well
as from 12V intermediate power rails. It supports up
Selectable Operating Frequency
to 1A continuous output current at output voltages
Power Good Output
between 0.9V and 6V (with 100% duty cycle mode).
100% Duty Cycle Mode
The output voltage startup ramp is controlled by the
Short Circuit Protection
soft-start pin, which allows operation as either a
Over Temperature Protection
standalone power supply or in tracking configurations.
Power sequencing is also possible by configuring the
Available in a 3
× 3 mm, QFN-16 Package
Enable and open-drain Power Good pins.
APPLICATIONS
In Power Save Mode, the devices show quiescent
current of about 17
μA from VIN. Power Save Mode,
Standard 12V Rail Supplies
entered automatically and seamlessly if load is small,
POL Supply from Single or Multiple Li-Ion
maintains high efficiency over the entire load range.
Battery
In Shutdown Mode, the device is turned off and
Solid-State Disk Drives
shutdown current consumption is less than 2
μA.
Embedded Systems
The device, available in adjustable and fixed output
voltage versions, is packaged in a 16-pin QFN
LDO replacement
package measuring 3
× 3 mm (RGT).
Mobile PC's, Tablet, Modems, Cameras
spacing
Figure 1. Typical Application and Efficiency
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
© 2011, 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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