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TPS54283PWPG4 Datasheet(PDF) 1 Page - Texas Instruments

Part # TPS54283PWPG4
Description  2-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH-SIDE MOSFET
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS54283PWPG4 Datasheet(HTML) 1 Page - Texas Instruments

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1
FEATURES
CONTENTS
DESCRIPTION
APPLICATIONS
1
2
3
4
14
13
12
11
PVDD2
BOOT2
SW2
BP
PVDD1
BOOT1
SW1
GND
TPS54283
5
6
7
10
9
8
SEQ
ILIM2
FB2
EN1
EN2
FB1
OUTPUT1
OUTPUT2
V
IN
UDG-07006
GND
TPS54283,, TPS54286
SLUS749C – JULY 2007 – REVISED OCTOBER 2007
www.ti.com
2-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH-SIDE MOSFET
23
• 4.5-V to 28-V Input Range
Device Ratings
2
• Output Voltage Range 0.8 V to 90% of Input
Electrical Characteristics
3
Voltage
Device Information
9
• Output Current Up to 2 A
Application Information
12
• Two Fixed Switching Frequency Versions:
Design Examples
32
TPS54283: 300 kHz
TPS54286: 600 kHz
Additional References
44
• Two Selectable Levels of Overcurrent
Protection (Output 2)
• 0.8-V 1.5% Voltage Reference
TPS54283
and
TPS54286
are
dual
output
• 2.1-ms Internal Soft Start
non-synchronous
buck
converters
capable
of
supporting 2-A output applications that operate from a
• Dual PWM Outputs 180° Out-of-Phase
4.5-V to 28-V input supply voltage, and require output
• Ratiometric or Sequential Startup Modes
voltages between 0.8 V and 90% of the input voltage.
Selectable by a Single Pin
With internally-determined operating frequency, soft
• 100-mΩ Internal High-Side MOSFETs
start time, and control loop compensation, these
• Current Mode Control
converters provide many features with a minimum of
• Internal Compensation (See Page 16)
external
components.
Channel
1
overcurrent
protection is set at 3 A, while Channel 2 overcurrent
• Pulse-by-Pulse Overcurrent Protection
protection level is selected by connecting a pin to
• Thermal Shutdown Protection at 148°C
ground, to BP, or left floating. The setting levels are
• 14-Pin PowerPAD™ HTSSOP package
used to allow for scaling of external components for
applications not needing the full load capability of
both outputs.
• Set Top Box
The outputs may be enabled independently, or may
• Digital TV
be configured to allow either ratiometric or sequential
startup sequencing. Additionally, the two outputs may
• Power for DSP
also be powered from different sources.
• Consumer Electronics
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
PowerPAD is a trademark of Texas Instruments.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 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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