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TPS54610 Datasheet

  • TPS54610

  • 具有可调节输出电压的低输入电压 6A 同步降压转换器

  • 968.00KB

  • 22页

  • TI

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Typical Size
6,4 mm X 9,7 mm
www.ti.com
TPS54610
SLVS398D 鈭?JUNE 2001 鈭?REVISED JULY 2003
3 V TO 6 V INPUT, 6 A OUTPUT SYNCHRONOUS BUCK PWM
SWITCHER WITH INTEGRATED FETs (SWIFT铮?
FEATURES
D
30-m鈩? 12-A Peak MOSFET Switches for High
D
D
D
D
D
Efficiency at 6-A Continuous Output Source
or Sink Current
Adjustable Output Voltage Down To 0.9 V
With 1.0% Accuracy
Wide PWM Frequency:
Fixed 350 kHz, 550 kHz or
Adjustable 280 kHz to 700 kHz
Synchronizable to 700 kHz
Load Protected by Peak Current Limit and
Thermal Shutdown
Integrated Solution Reduces Board Area and
Component Count
DESCRIPTION
As a member of the SWIFT铮?family of dc/dc regulators,
the TPS54610 low-input voltage high-output current
synchronous buck PWM converter integrates all
required active components. Included on the substrate
with the listed features are a true, high performance,
voltage error amplifier that enables maximum
performance and flexibility in choosing the output filter
L and C components; an under-voltage-lockout circuit
to prevent start-up until the input voltage reaches 3 V;
an internally or externally set slow-start circuit to limit
inrush currents; and a power good output useful for
processor/logic reset, fault signaling, and supply
sequencing.
The TPS54610 is available in a thermally enhanced
28-pin TSSOP (PWP) PowerPAD铮?package, which
eliminates bulky heatsinks. TI provides evaluation
modules and the SWIFT铮?designer software tool to aid
in quickly achieving high-performance power supply
designs to meet aggressive equipment development
cycles.
APPLICATIONS
D
Low-Voltage, High-Density Distributed Power
D
D
D
Systems
Point of Load Regulation for High
Performance DSPs, FPGAs, ASICs and
Microprocessors
Broadband, Networking and Optical
Communications Infrastructure
Portable Computing/Notebook PCs
SIMPLIFIED SCHEMATIC
EFFICIENCY AT 350 kHz
100
Input
VIN
PH
TPS54610
BOOT
Output
95
90
85
Efficiency 鈭?%
80
75
70
65
60
55
50
0
1
2
3
4
5
6
Load Current 鈭?A
VI = 5 V,
VO = 3.3 V
PGND
VBIAS VSENSE
AGND COMP
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.
PowerPAD and SWIFT are trademarks of Texas Instruments.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright
铮?/div>
2002, Texas Instruments Incorporated

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