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TPS61235RWLR Datasheet(PDF) 1 Page - Texas Instruments

No. de Pieza. TPS61235RWLR
Descripción  TPS6123x 8-A Valley Current Synchronous Boost Converters with Constant Current Output Feature
Descarga  38 Pages
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS61235RWLR Datasheet(HTML) 1 Page - Texas Instruments

 
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background image
SW
VIN
EN
VOUT
FB
CC
AGND
L1
1 PH
C1
10 PF
C2
22 PF x 3
OFF
ON
PGND
Li-Ion
Battery
VOUT
5.1 V
TPS61235P
INACT
Copyright © 2016, Texas Instruments Incorporated
Output Current (A)
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
60
65
70
75
80
85
90
95
100
D001
2.7 V Input
3.3 V Input
3.6 V Input
4.2 V Input
Product
Folder
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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.
TPS61235P, TPS61236P
SLVSCK4A – SEPTEMBER 2015 – REVISED MAY 2016
TPS6123x 8-A Valley Current Synchronous Boost Converters with Constant Current
Output Feature
1
1 Features
1
Up to 97% Efficiency Synchronous Boost
Up to 3.5-A IOUT for 3.3-V to 5-V Conversion
10-A 14-mΩ/14-mΩ Internal Power Switches
Programmable Constant Output Current
Output Current Monitor
10-µA IQ under Light Load Condition
Boost Status Indication
True disconnection during shutdown
Fixed 5.1-V Output Voltage (TPS61235P) or
Adjustable Output Voltage from 2.9-V to-5.5 V
(TPS61236P)
1-MHz Switching Frequency
Softstart, Current Limit, Over Voltage and Over
Thermal Protections
2.5 mm x 2.5 mm VQFN Package
2 Applications
Power Banks, Battery Backup Units
USB Charging Port
USB Type-C
Battery Powered USB Hub
Tablet PCs
Battery Powered Products
3 Description
The TPS6123x is a high current, high efficiency
synchronous boost converter with constant output
current feature for single cell Li-Ion and Li-polymer
battery powered products, in a wide range of power
bank, tablet, and other portable devices. The IC
integrates 14-mΩ/14-mΩ power switches and is
capable of delivering up to a 3.5-A output current for
3.3-V to 5-V conversion with up to 97% high
efficiency. The device supports a programmable
constant output current to control power delivery, so
to save power path components and lower total
system thermal dissipation effectively.
The device only consumes a 10-µA quiescent current
under a light load condition, and can report load
status to the system, which make it very suitable for
Always-On applications. With the TPS6123x, a simple
and
flexible
system
design
can
be
achieved,
eliminating external power path components, saving
PCB space, and reducing BOM cost.
In shutdown, the output is completely disconnected
from the input, and current consumption is reduced to
less than 1 µA. Other features like soft start control,
reverse current blocking, over voltage protection, and
thermal shutdown protection are built-in for system
safety.
The devices are available in a 2.5-mm x 2.5-mm
VQFN package.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS61235P
VQFN (9)
2.50 mm x 2.50 mm
TPS61236P
VQFN (9)
2.50 mm x 2.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
SPACING
TPS61235P Typical Application
Typical Application Efficiency (TPS61235P)


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