參數(shù)資料
型號(hào): TPS53353DQPT
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, PDSO22
封裝: 5 X 6 MM, ROHS COMPLIANT, PLASTIC, SON-22
文件頁(yè)數(shù): 1/25頁(yè)
文件大?。?/td> 556K
代理商: TPS53353DQPT
UDG-11047
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TPS53353
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VOUT
VREG
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PGOOD
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VIN
SLUSAK2
– AUGUST 2011
High-Efficiency 20-A Synchronous Buck Converter with Eco-mode
Check for Samples: TPS53353
1
FEATURES
Open-Drain Power Good Indication
Incorporates NexFET
Power Block
2
Conversion Input Voltage Range: 3 V to 15 V
Technology
VDD Input Voltage Range: 4.5 V to 25 V
22-pin QFN Package with PowerPAD
92% efficiency from 12 V to 1.5 V at 20 A
Output Voltage Range: 0.6 V to 5.5 V
APPLICATIONS
5-V LDO Output
Server/Storage
Supports Single Rail Input
Workstations and Desktops
Integrated Power MOSFETs with 20-A of
Telecommunications Infrastructure
Continuous Output Current
Auto-Skip Eco-mode
for Light-Load
DESCRIPTION
Efficiency
TPS53353 is a D-CAP
mode, 20-A synchronous
<10 μA Shut Down Current
switcher with integrated MOSFETs. It is designed for
ease of use, low external component count, and
D-CAP
Mode with Fast Transient Response
space-conscious power systems.
Selectable Switching Frequency from 250 kHz
to 1 MHz with External Resistor
This device features 5.5-m
Ω / 2.2-mΩ integrated
MOSFETs,
accurate
1%,
0.6-V
reference,
and
Selectable Auto-Skip or PWM-Only Operation
integrated boost switch. A sample of competitive
Built-in 1% 0.6-V Reference.
features include: 3-V to 15-V wide conversion input
0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms Selectable
voltage range, very low external component count,
Internal Voltage Servo Soft-Start
D-CAP
mode control for super fast transient,
auto-skip mode operation, internal soft-start control,
Integrated Boost Switch
selectable frequency, and no need for compensation.
Pre-Charged Start-up Capability
The conversion input voltage ranges from 3 V to
Adjustable Overcurrent Limit with Thermal
15 V, the supply voltage range is from 4.5 V to 25 V,
Compensation
and the output voltage range is from 0.6 V to 5.5 V.
Overvoltage, Undervoltage, UVLO and
The device is available in 5 mm x 6 mm, 22-pin QFN
Over-Temperature Protection
package and is specified from
–40°C to 85°C.
Supports All Ceramic Output Capacitors
SIMPLIFIED APPLICATION
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
Eco-mode, NexFET, PowerPAD are trademarks of Texas Instruments.
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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