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TPS54525 Datasheet(PDF) 1 Page - Texas Instruments

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Part # TPS54525
Description  4.5V to 18V Input, 5.5-A Synchronous Step-Down Converter
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS54525 Datasheet(HTML) 1 Page - Texas Instruments

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U1
TPS54525
Slew Rate (0.35A/µsec)
V
(50 mV/div ac coupled)
O
I
(2A/div)
OUT
Time Scale (100µsec/div)
TPS54525
www.ti.com
SLVSB82 – MAY 2012
4.5V to 18V Input, 5.5-A Synchronous Step-Down Converter
Check for Samples: TPS54525
1
FEATURES
DESCRIPTION
The TPS54525 is an adaptive on-time D-CAP2™
23
D-CAP2™ Mode Enables Fast Transient
mode synchronous buck converter. The TPS54525
Response
enables system designers to complete the suite of
Low Output Ripple and Allows Ceramic Output
various end equipment’s power bus regulators with a
Capacitor
cost effective, low component count, low standby
current solution. The main control loop for the
Wide VIN Input Voltage Range: 4.5 V to 18 V
TPS54525 uses the D-CAP2™ mode control which
Output Voltage Range: 0.76 V to 5.5 V
provides a very fast transient response with no
Highly Efficient Integrated FET’s Optimized
external compensation components. The TPS54525
for Lower Duty Cycle Applications
also has a proprietary circuit that enables the device
–63 m
Ω (High Side) and 33 mΩ (Low Side)
to adopt to both low equivalent series resistance
(ESR) output capacitors, such as POSCAP or SP-
High Efficiency, less than 10
μA at shutdown
CAP, and ultra-low ESR ceramic capacitors. The
High Initial Bandgap Reference Accuracy
device operates from 4.5-V to 18-V VIN input. The
Adjustable Soft Start
output voltage can be programmed between 0.76 V
and 5.5 V. The device also features an adjustable
Pre-Biased Soft Start
soft start time and a power good function. The
650-kHz Switching Frequency (fSW)
TPS54525 is available in the 14-pin HTSSOP
Cycle By Cycle Over Current Limit
package, and designed to operate from –40°C to
85°C.
Power Good Output
APPLICATIONS
Wide Range of Applications for Low Voltage
System
Digital TV Power Supply
High Definition Blu-ray Disc™ Players
Networking Home Terminal
Digital Set Top Box (STB)
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.
2
D-CAP2, PowerPAD are trademarks of Texas Instruments.
3
Blu-ray Disc is a trademark of Blu-ray Disc Association.
PRODUCTION DATA information is current as of publication date.
Copyright © 2012, 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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