參數(shù)資料
型號(hào)： TPS54620RHLT
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： SWITCHING REGULATOR, 1760 kHz SWITCHING FREQ-MAX, PQCC14
封裝： 3.50 X 3.50 MM, GREEN, PLASTIC, QFN-14
文件頁(yè)數(shù)： 1/44頁(yè)
文件大小： 1827K
代理商： TPS54620RHLT
100
95
90
85
80
75
70
65
60
55
50
Efficiency-%
0
1
2
3
4
5
6
LoadCurrent- A
8V
12V
17V
VOUT =3.3V
Fsw=480kHz
PH
PVIN
GND
BOOT
VSENSE
COMP
TPS54620
EN
RT/CLK
SS/TR
Exposed
Thermal
Pad
Css
Rrt
R3
C1
Cboot
Co
Lo
R1
R2
Cin
C2
VIN
VIN
VOUT
PWRGD
SLVS949C
– MAY 2009 – REVISED MAY 2011
4.5V to 17V Input, 6A Synchronous Step Down SWIFT
Converter
Check for Samples: TPS54620
1
FEATURES
Adjustable Input Undervoltage Lockout
Supported by SwitcherPro
Software Tool
Integrated 26m
/ 19m MOSFETs
For SWIFT
Documentation and
Split Power Rail: 1.6V to 17V on PVIN
SwitcherPro
200kHz to 1.6MHz Switching Frequency
Synchronizes to External Clock
APPLICATIONS
0.8V
±1% Voltage Reference Over Temperature
High Density Distributed Power Systems
Low 2uA Shutdown Quiescent Current
High Performance Point of Load Regulation
Monotonic Start-Up into Pre-biased Outputs
Broadband, Networking and Optical
–40°C to 150°C Operating Junction
Communications Infrastructure
Temperature Range
Adjustable Slow Start/Power Sequencing
Power Good Output Monitor for Undervoltage
and Overvoltage
DESCRIPTION
The TPS54620 in thermally enhanced 3.5mm x 3.5mm QFN package is a full featured 17V, 6A synchronous step
down converter which is optimized for small designs through high efficiency and integrating the high-side and
low-side MOSFETs. Further space savings are achieved through current mode control, which reduces
component count, and by selecting a high switching frequency, reducing the inductor
's footprint.
The output voltage startup ramp is controlled by the SS/TR pin which allows operation as either a stand alone
power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and
the open drain power good pins.
Cycle by cycle current limiting on the high-side FET protects the device in overload situations and is enhanced
by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit
which turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part
when die temperature exceeds thermal shutdown temperature.
WHITE SPACE
SIMPLIFIED SCHEMATIC
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
2009–2011, 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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS54622 制造商:TI 制造商全稱:Texas Instruments 功能描述:4.5V to 17V Input, 6A Synchronous Step Down SWIFT? Converter With Hiccup
TPS54622EVM-012 功能描述:電源管理IC開(kāi)發(fā)工具 TPS54622 Eval Mod RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評(píng)估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
TPS54622RHLR 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 4.5-17Vin,6A Syn Step Down Cnvrtr RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
TPS54622RHLT 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 4.5-17Vin,6A Syn Step Down Cnvrtr RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
TPS54623 制造商:TI 制造商全稱:Texas Instruments 功能描述:4.5V to 17V Input, 6A Synchronous Step Down SWIFTa?￠ Converter With Light Load Efficiency and Hiccup Over Current Protection
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