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TPS61030 Datasheet

  • TPS61030

  • 采用 TSSOP-16 封装、具有 20uA Iq、可调节、1A 的 96% 高效升压...

  • 560.79KB

  • 23页

  • TI

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Actual Size
(5,0 mm x 6,4 mm)
Actual Size
(4,15 mm x 4,15 mm)
TPS61030
TPS61031, TPS61032
www.ti.com
SLUS534D 鈥?SEPTEMBER 2002 鈥?REVISED APRIL 2004
96% EFFICIENT SYNCHRONOUS BOOST CONVERTER WITH 4A SWITCH
FEATURES
鈥?/div>
96% Efficient Synchronous Boost Converter
With 1000-mA Output Current From 1.8-V
Input
Device Quiescent Current: 20-碌A (Typ)
Input Voltage Range: 1.8-V to 5.5-V
Fixed and Adjustable Output Voltage Options
Up to 5.5-V
Power Save Mode for Improved Efficiency at
Low Output Power
Low Battery Comparator
Low EMI-Converter (Integrated Antiringing
Switch)
Load Disconnect During Shutdown
Over-Temperature Protection
Available in a Small 4 mm x 4 mm QFN-16 or
in a TSSOP-16 Package
DESCRIPTION
The TPS6103x devices provide a power supply
solution for products powered by either a one-cell
Li-Ion or Li-polymer, or a two to three-cell alkaline,
NiCd or NiMH battery. The converter generates a
stable output voltage that is either adjusted by an
external resistor divider or fixed internally on the chip.
It provides high efficient power conversion and is
capable of delivering output currents up to 1 A at 5 V
at a supply voltage down to 1.8 V. The implemented
boost converter is based on a fixed frequency,
pulse-width- modulation (PWM) controller using a
synchronous rectifier to obtain maximum efficiency.
At low load currents the converter enters Power Save
mode to maintain a high efficiency over a wide load
current range. The Power Save mode can be dis-
abled, forcing the converter to operate at a fixed
switching frequency. It can also operate synchronized
to an external clock signal that is applied to the
SYNC pin. The maximum peak current in the boost
switch is limited to a value of 4500 mA.
The converter can be disabled to minimize battery
drain. During shutdown, the load is completely dis-
connected from the battery. A low-EMI mode is
implemented to reduce ringing and, in effect, lower
radiated electromagnetic energy when the converter
enters the discontinuous conduction mode.
The device is packaged in a 16-pin QFN package
measuring 4 mm x 4 mm (RSA) or in a 16-pin
TSSOP PowerPAD鈩?package (PWP).
L1
6.8
碌H
SW
VBAT
VOUT
R3
FB
R4
R6
C2
2.2
碌F
C3
220
碌F
e.g. 5 V up to
1000 mA
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
APPLICATIONS
鈥?/div>
All Single Cell Li or Dual Cell Battery
Operated Products as MP-3 Player, PDAs, and
Other Portable Equipment
1.8 V to 5 V
Input
C1
10
碌F
R1
EN
LBI
R2
SYNC
GND
LBO
PGND
TPS6103x
Low Battery
Comparator
Output
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.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright 漏 2002鈥?004, Texas Instruments Incorporated

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