TPS61030_15 Datasheet, PDF (1/31 Pages) Texas Instruments – TPS6103x 96% Efficient Synchronous Boost Converter With 4A Switch

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TPS61030, TPS61031, TPS61032
SLUS534G – SEPTEMBER 2002 – REVISED MARCH 2015
TPS6103x 96% Efficient Synchronous Boost Converter With 4A Switch
1 Features
•1 96% Efficient Synchronous Boost Converter With
1000-mA Output Current
From 1.8-V Input
• Device Quiescent Current: 20-µA (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
2 Applications
All Single Cell Li or Dual Cell Battery Operated
Products as MP-3 Player, PDAs, and Other
Portable Equipment
3 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
disabled, 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
disconnected 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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS61030
TPS61031
TSSOP (16)
5.00 mm × 4.40 mm
TPS61032
TPS61030
TPS61031
QFN (16)
4.00 mm x 4.00 mm
TPS61032
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Simplified Schematic
1.8 V to 5 V
C1
Input 10 µF
L1
6.8 µH
R1
R2
SW
VBAT
EN
LBI
VOUT
FB
SYNC
LBO
GND
PGND
TPS6103x
C2
C3
R3 2.2 µF 220 µF
R4
R6
e.g. 5 V up to
1000 mA
Low Battery
Comparator
Output
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.