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TPS54335-1ADRCT 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
DC/DC转换器
封装:
VFDFN-10
描述:
TEXAS INSTRUMENTS TPS54335-1ADRCT 直流-直流开关同步降压稳压器, 可调, 4.5V-28V输入, 800mV-24V/3A输出, 1.5 MHz, VSON-10
Pictures:
3D模型
符号图
焊盘图
引脚图
产品图
页面导航:
引脚图在P3Hot
典型应用电路图在P20P28
原理图在P1P10P20P28
封装尺寸在P35P37P38
标记信息在P35P36
封装信息在P19P34P35P36P37P38
技术参数、封装参数在P4
应用领域在P1P20P46
电气规格在P5P6
导航目录
TPS54335-1ADRCT数据手册
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PH
GND
BOOT
EN
VSENSE
COMP
TPS54335A
RT
R
C
R
RT
C
BOOT
C
O
L
O
R
O1
R
O2
V
OUT
VIN
V
IN
C
1
C
C
C
2
R
C
C
SS
C
C
C
BOOT
C
O
L
O
R
O1
R
O2
C
2
C
1
PH
GND
BOOT
EN
VSENSE
COMP
TPS54336A
SS
V
OUT
VIN
V
IN
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TPS54335A
,
TPS54335-1A
,
TPS54336A
SLVSCD5C –NOVEMBER 2014–REVISED JULY 2015
TPS5433xA 4.5- to 28-V Input, 3-A Output, Synchronous SWIFT™
Step-Down DC-DC Converter
1 Features 3 Description
The TPS5433xA family of devices are synchronous
1
• Synchronous 128-mΩ and 84-mΩ MOSFETs for
converters with an input-voltage range of 4.5 to 28 V.
3-A Continuous Output Current
These devices include an integrated low-side
• TPS54335A: Internal 2-ms Soft-Start,
switching FET that eliminates the need for an
50-kHz to 1.5-MHz Adjustable Frequency
external diode which reduces component count.
• TPS54336A: Adjustable Soft-Start,
Efficiency is maximized through the integrated 128-
Fixed 340-kHz Frequency
mΩ and 84-mΩ MOSFETs, low I
Q
and pulse skipping
• Low 2-µA Shutdown, Quiescent Current
at light loads. Using the enable pin, the shutdown
supply current is reduced to 2 μA. This step-down
• 0.8-V Voltage Reference with ±0.8% Accuracy
(buck) converter provides accurate regulation for a
• Current Mode Control
variety of loads with a well-regulated voltage
• Monotonic Startup into Pre-Biased Outputs
reference that is 1.5% over temperature.
• Pulse Skipping for Light-Load Efficiency
Cycle-by-cycle current limiting on the high-side
• Hiccup Mode Overcurrent Protection
MOSFET protects the TPS5433xA family of devices
in overload situations and is enhanced by a low-side
• Thermal Shutdown (TSD) and
sourcing current limit which prevents current
Overvoltage Transition Protection
runaway. A low-side sinking current-limit turns off the
• 8-Pin SO PowerPAD™ and 10-Pin VSON
low-side MOSFET to prevent excessive reverse
Packages
current. Hiccup protection is triggered if the
overcurrent condition continues for longer than the
2 Applications
preset time. Thermal shutdown disables the device
when the die temperature exceeds the threshold and
• Consumer Applications such as a Digital TV
enables the device again after the built-in thermal
(DTV), Set Top Box (STB, DVD/Blu-ray Player),
hiccup time.
LCD Display, CPE (Cable Modem, WiFi Router),
DLP Projectors, Smart Meters
Device Information
(1)
• Battery Chargers
PART NUMBER PACKAGE BODY SIZE (NOM)
• Industrial and Car Audio Power Supplies
SO PowerPAD (8) 4.89 mm × 3.90 mm
TPS54335A
• 5-V, 12-V, and 24-V Distributed Power Bus Supply
TPS54336A
VSON (10) 3.00 mm × 3.00 mm
TPS54335-1A VSON (10)
(2)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
(2) The DRC package for the TPS54335-1A device has a
narrower heat-pad for more clearance between the pins and
heat pad. See the Differences Between the Two DRC
Packages section.
4 Simplified Schematic
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
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