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TPS63001DRC 数据手册 - TI（德州仪器）
制造商:
TI（德州仪器）
封装:
QFN-10
描述:
1.8 -A切换为高电平有效的单电感器降压 - 升压转换器 HIGH EFFICIENT SINGLE INDUCTOR BUCK-BOOST CONVERTER WITH 1.8-A SWITCHES
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TPS63001DRC数据手册
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(3,25 mm x 3,25 mm)
1
FEATURES APPLICATIONS
DESCRIPTION
L1
VIN
VINA
EN
PS/SYNC
GND
L2
VOUT
FB
PGND
L1
2.2µH
C2
10µF
C1
10µF
V
IN
1.8Vto
5.5V
V
OUT
3.3Vupto
1200mA
TPS63001
TPS63000
TPS63001
TPS63002
www.ti.com
........................................................................................................................................................... SLVS520B – MARCH 2006 – REVISED JULY 2008
HIGH EFFICIENT SINGLE INDUCTOR BUCK-BOOST CONVERTER WITH 1.8-A SWITCHES
• All Two-Cell and Three-Cell Alkaline, NiCd or
23
• Up to 96% Efficiency
NiMH or Single-Cell Li Battery Powered
• 1200-mA Output Current at 3.3V in Step Down
Products
Mode (VIN = 3.6V to 5.5V)
• Portable Audio Players
• Up to 800-mA Output Current at 3.3V in Boost
• PDAs
Mode (VIN > 2.4V)
• Cellular Phones
• Automatic Transition between Step Down and
• Personal Medical Products
Boost Mode
• White LEDs
• Device Quiescent Current less than 50 µ A
• Input Voltage Range: 1.8V to 5.5V
• Fixed and Adjustable Output Voltage Options
The TPS6300x devices provide a power supply
from 1.2V to 5.5V
solution for products powered by either a two-cell or
• Power Save Mode for Improved Efficiency at
three-cell alkaline, NiCd or NiMH battery, or a
Low Output Power
one-cell Li-Ion or Li-polymer battery. Output currents
can go as high as 1200 mA while using a single-cell
• Forced Fixed Frequency Operation and
Li-Ion or Li-Polymer Battery, and discharge it down to
Synchronization possible
2.5V or lower. The buck-boost converter is based on
• Load Disconnect During Shutdown
a fixed frequency, pulse-width-modulation (PWM)
• Over-Temperature Protection
controller using synchronous rectification to obtain
maximum efficiency. At low load currents, the
• Available in Small 3 mm × 3 mm, QFN-10
converter enters Power Save mode to maintain high
Package
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 1800 mA. 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 10-pin QFN PowerPAD™ package
measuring 3 mm × 3 mm (DRC).
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 PowerPAD is a trademark of Texas Instruments.
3 All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2006 – 2008, 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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