Datasheet

SW
C1
10 µF
L1
6.8 µH
R1
R2
VBAT
VOUT
FB
C2
2.2 µF
C3
220 µF
LBO
PGND
LBI
SYNC
EN
GND
TPS6103x
e.g. 5 V up to
1000 mA
Low Battery
Comparator
Output
R3
R4
R6
1.8 V to 5 V
Input
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TPS61030
,
TPS61031
,
TPS61032
SLUS534G SEPTEMBER 2002REVISED MARCH 2015
TPS6103x 96% Efficient Synchronous Boost Converter With 4A Switch
1 Features 3 Description
The TPS6103x devices provide a power supply
1
96% Efficient Synchronous Boost Converter With
solution for products powered by either a one-cell Li-
1000-mA Output Current
Ion or Li-polymer, or a two to three-cell alkaline, NiCd
From 1.8-V Input
or NiMH battery. The converter generates a stable
Device Quiescent Current: 20-µA (Typ)
output voltage that is either adjusted by an external
resistor divider or fixed internally on the chip. It
Input Voltage Range: 1.8-V to 5.5-V
provides high efficient power conversion and is
Fixed and Adjustable Output Voltage Options Up
capable of delivering output currents up to 1 A at 5 V
to 5.5-V
at a supply voltage down to 1.8 V. The implemented
Power Save Mode for Improved Efficiency at Low
boost converter is based on a fixed frequency, pulse-
Output Power
width- modulation (PWM) controller using a
synchronous rectifier to obtain maximum efficiency.
Low Battery Comparator
At low load currents the converter enters Power Save
Low EMI-Converter (Integrated Antiringing Switch)
mode to maintain a high efficiency over a wide load
Load Disconnect During Shutdown
current range. The Power Save mode can be
Over-Temperature Protection
disabled, forcing the converter to operate at a fixed
switching frequency. It can also operate synchronized
Available in a Small 4 mm x 4 mm QFN-16 or in a
to an external clock signal that is applied to the
TSSOP-16 Package
SYNC pin. The maximum peak current in the boost
switch is limited to a value of 4500 mA.
2 Applications
The converter can be disabled to minimize battery
All Single Cell Li or Dual Cell Battery Operated
drain. During shutdown, the load is completely
Products as MP-3 Player, PDAs, and Other
disconnected from the battery. A low-EMI mode is
Portable Equipment
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
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.

Summary of content (42 pages)