TPS61000_15 Datasheet, PDF (1/25 Pages) Texas Instruments – Single- and Dual-Cell Boost Converter

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TPS61000, TPS61001, TPS61002, TPS61003
TPS61004, TPS61005, TPS61006, TPS61007
SLVS279D – MARCH 2000 – REVISED AUGUST 2015
TPS6100x Single- and Dual-Cell Boost Converter With Start-up Into Full Load
1 Features
•1 Start-Up Into a Full Load With Supply Voltages as
Low as 0.9 V Over Full Temperature Range
• Minimum 100-mA Output Current From 0.8-V
Supply Voltage, 250 mA From 1.8 V
• High Power Conversion Efficiency, up to 90%
• Power-Save Mode for Improved Efficiency at Low
Output Currents
• Device Quiescent Current Less Than 50 µA
• Added System Security With Integrated Low-
Battery Comparator
• Low-EMI Converter (Integrated Antiringing Switch
Across Inductor)
• Micro-Size 10-Pin MSOP Package
• Evaluation Modules Available
(TPS6100xEVM–156)
2 Applications
• Single- and Dual-Cell Battery Operated Products
• MP3-Players and Wireless Headsets
• Pagers and Cordless Phones
• Portable Medical Diagnostic Equipment
• Remote Controls
3 Description
The TPS6100x devices are boost converters intended
for systems that are typically operated from a single-
or dual-cell nickel-cadmium (NiCd), nickel-metal
hydride (NiMH), or alkaline battery. The converter
output voltage can be adjusted from 1.5 V to a
maximum of 3.3 V and provides a minimum output
current of 100 mA from a single battery cell and 250
mA from two battery cells. The converter starts up
into a full load with a supply voltage of 0.9 V and
stays in operation with supply voltages as low as 0.8
V.
The converter is based on a fixed-frequency, current-
mode pulse-width-modulation (PWM) controller that
goes into power-save mode at low load currents. The
current through the switch is limited to a maximum of
1100 mA, depending on the output voltage. The
current sense is integrated to further minimize
external component count. The converter can be
disabled to minimize battery drain when the system is
put into standby.
A low-EMI mode is implemented to reduce
interference and radiated electromagnetic energy that
is caused by the ringing of the inductor when the
inductor discharge-current decreases to zero. The
device is packaged in the space-saving 10-pin MSOP
package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS6100x
VSSOP (10)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Typical Application Circuit for Fixed Output
Voltage Options
L1
D1
V_O = 3.3 V
C_i ^{33 µH}
10 µF
6 V_BAT
7
SW
V_OUT 5
C_o
22 µF
R1
R2
9 LBI
8 NC
LBO 10
TPS61006
FB 3
R3
Low Battery
Warning
ON
OFF
1 EN
GND
4
COMP 2
C1
100 pF
R4
10 k Ω
C2
33 nF
TPS61006 Start-Up Timing Into 33-Ω Load
140
3
V_OUT
120
100
2
80
I_OUT
60
1
40
20
EN
0
0
0 2 4 6 8 10 12 14 16 18 20
Time - ms
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.