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TPS63020DSJR 其他数据使用手册 - TI（德州仪器）
制造商:
TI（德州仪器）
分类:
稳压芯片
封装:
VSON-14
描述:
TEXAS INSTRUMENTS TPS63020DSJR 直流-直流开关降压, 升压稳压器, 可调, 1.8V-5.5V输入, 1.2V-5.5V/4A输出, 2.4MHz, VSON-14 新
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符号图
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引脚图
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页面导航:
引脚图在P4Hot
典型应用电路图在P20
原理图在P5
封装尺寸在P22P24P25
标记信息在P2P22
封装信息在P2P22P23P24P25
技术参数、封装参数在P2
应用领域在P1P29
电气规格在P3
导航目录
TPS63020DSJR数据手册
Page:
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V
IN
L1
VIN
VINA
EN
PS/SYNC
GND
L2
VOUT
FB
PGND
L
1
1µH
C
2
C
3
2.5 V to
5.5V
V
OUT
3.3V
2A
TPS63020
PG
Power Good
Output
C
1
2X10µF
0.1µF
4X22µF
1MΩ
180kΩ
R
1
R
2
1MΩ
R
3
TPS63020
TPS63021
www.ti.com
SLVS916C –JULY 2010–REVISED MARCH 2013
HIGH EFFICIENCY SINGLE INDUCTOR BUCK-BOOST CONVERTER WITH 4-A SWITCHES
Check for Samples: TPS63020, TPS63021
1
FEATURES
• Smart Power Good Output
• Load Disconnect During Shutdown
2
• Up to 96% Efficiency
• Overtemperature Protection
• 3A Output Current at 3.3V in Step Down Mode
(VIN = 3.6V to 5.5V)
• Overvoltage Protection
• More than 2A Output Current at 3.3V in Boost
• Available in a 3 × 4-mm, QFN-14 Package
Mode (VIN > 2.5V)
APPLICATIONS
• Automatic Transition Between Step Down and
Boost Mode
• All Two-Cell and Three-Cell Alkaline, NiCd or
• Dynamic Input Current Limit NiMH or Single-Cell Li Battery Powered
Products
• Device Quiescent Current less than 50μA
• Ultra Mobile PCs and Mobile Internet Devices
• Input Voltage Range: 1.8V to 5.5V
• Digital Media Players
• Fixed and Adjustable Output Voltage Options
from 1.2V to 5.5V • DSCs and Camcorders
• Power Save Mode for Improved Efficiency at • Cellular Phones and Smartphones
Low Output Power
• Personal Medical Products
• Forced Fixed Frequency Operation at 2.4MHz
• Industrial Metering Equipment
and Synchronization Possible
• High Power LEDs
DESCRIPTION
The TPS6302x devices provide a power supply solution for products powered by either a two-cell or three-cell
alkaline, NiCd or NiMH battery, or a one-cell Li-Ion or Li-polymer battery. Output currents can go as high as 3A
while using a single-cell Li-Ion or Li-Polymer Battery, and discharge it down to 2.5V or lower. The buck-boost
converter is based on a fixed frequency, pulse-width-modulation (PWM) controller using synchronous rectification
to obtain maximum efficiency. At low load currents, the converter enters Power Save mode to maintain high
efficiency over a wide load current range. The Power Save mode can be disabled, forcing the converter to
operate at a fixed switching frequency. The maximum average current in the switches is limited to a typical value
of 4A. The output voltage is programmable using an external resistor divider, or is fixed internally on the chip.
The converter can be disabled to minimize battery drain. During shutdown, the load is disconnected from the
battery. The device is packaged in a 14-pin QFN PowerPAD™ package measuring 3 × 4 mm (DSJ).
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.
2PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2010–2013, 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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