參數(shù)資料
型號(hào)： TPS54622RHLT
廠商： TEXAS INSTRUMENTS INC
元件分類： 穩(wěn)壓器
英文描述： 15 A 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)： 1/36頁(yè)
文件大?。?/td> 1190K
代理商： TPS54622RHLT
50
55
60
65
70
75
80
85
90
95
100
1
2
3
4
5
6
0
Output Current - A
E
ff
ic
ie
n
c
y
-
%
VIN = 8 V
VIN = 12 V
VIN = 17 V
PH
PVIN
GND
BOOT
VSENSE
COMP
TPS54622
EN
RT/CLK
SS/TR
Exposed
Thermal
Pad
Css
Rrt
R3
C1
Cboot
Co
Lo
R1
R2
Cin
C2
VIN
VIN
VOUT
PWRGD
SLVSA70
– MARCH 2011
4.5V to 17V Input, 6A Synchronous Step Down SWIFT
Converter With Hiccup
Check for Samples: TPS54622
1
FEATURES
and Overvoltage
Adjustable Input Undervoltage Lockout
Integrated 26m
/ 19m MOSFETs
Supported by SwitcherPro
Software Tool
Split Power Rail: 1.6V to 17V on PVIN
For SWIFT
Documentation and
200kHz to 1.6MHz Switching Frequency
SwitcherPro
Synchronizes to External Clock
0.6V
±1% Voltage Reference Over Temperature
APPLICATIONS
Low 2uA Shutdown Quiescent Current
High Density Distributed Power Systems
Monotonic Start-Up into Pre-biased Outputs
High Performance Point of Load Regulation
–40°C to 150°C Operating Junction
Broadband, Networking and Optical
Temperature Range
Communications Infrastructure
Adjustable Slow Start/Power Sequencing
Power Good Output Monitor for Undervoltage
DESCRIPTION
The TPS54622 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. Hiccup protection will be triggered if
the overcurrent condition has persisted for longer than the preset time. Thermal hiccup protection disables the
device when the die temperature exceeds the thermal shutdown temperature and enables the part again after
the built-in thermal shutdown hiccup time.
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
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
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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TPS54623RHLR 功能描述:直流/直流開關(guān)調(diào)節(jié)器 4.5-17VIN,6A SYNC STEP-DOWN CONVERTER RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54623RHLT 功能描述:直流/直流開關(guān)調(diào)節(jié)器 4.5-17VIN,6A SYNC STEP-DOWN CONVERTER RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
TPS54625EVM-608 制造商:Texas Instruments 功能描述:TPS54625EVM-608 - Boxed Product (Development Kits) 制造商:Texas Instruments 功能描述:TPS54625 EVAL MOD
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