Datasheet

TPS65023, TPS65023B
www.ti.com
SLVS670J JUNE 2006 REVISED SEPTEMBER 2011
POWER MANAGEMENT IC FOR LI-ION POWERED SYSTEMS
Check for Samples: TPS65023, TPS65023B
1
FEATURES
DESCRIPTION
23
1.7 A, 90% Efficient Step-Down Converter for
The TPS65023, TPS65023B is an integrated Power
Processor Core (VDCDC1)
Management IC for applications powered by one
1.2 A, Up to 95% Efficient Step-Down
Li-Ion or Li-Polymer cell, and which require multiple
Converter for System Voltage (VDCDC2)
power rails. The TPS65023, TPS65023B provides
1.0 A, 92% Efficient Step-Down Converter for
three highly efficient, step-down converters targeted
at providing the core voltage, peripheral, I/O and
Memory Voltage (VDCDC3)
memory rails in a processor based system. The core
30 mA LDO/Switch for Real Time Clock (VRTC)
converter allows for on-the-fly voltage changes via
2 × 200 mA General-Purpose LDO
serial interface, allowing the system to implement
Dynamic Voltage Management for Processor
dynamic power savings. All three step-down
converters enter a low-power mode at light load for
Core
maximum efficiency across the widest possible range
Preselectable LDO Voltage Using Two Digital
of load currents. The TPS65023, TPS65023B also
Input Pins
integrates two general-purpose 200 mA LDO voltage
Externally Adjustable Reset Delay Time
regulators, which are enabled with an external input
pin. Each LDO operates with an input voltage range
Battery Backup Functionality
between 1.5 V and 6.5 V, allowing them to be
Separate Enable Pins for Inductive Converters
supplied from one of the step-down converters or
I
2
C Compatible Serial Interface
directly from the battery. The default output voltage of
the LDOs can be digitally set to 4 different voltage
I
2
C Setup and Hold Timing:
combinations using the DEFLDO1 and DEFLDO2
TPS65023: 300ns
pins. The serial interface can be used for dynamic
TPS65023B: 100ns
voltage scaling, masking interrupts, or for dis/enabling
85-μA Quiescent Current
and setting the LDO output voltages. The interface is
compatible with the Fast/Standard mode I
2
C
Low Ripple PFM Mode
specification, allowing transfers at up to 400 kHz. The
Thermal Shutdown Protection
TPS65023, TPS65023B is available in a 40-pin (RSB)
40 Pin, 5 mm × 5 mm QFN Package
QFN package, and operates over a free-air
temperature of 40°C to 85°C.
APPLICATIONS
Digital Media Players
Internet Audio Player
Digital Still Camera
Smart Phones
Supply DaVinci DSP Family Solutions
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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.
2DaVinci, PowerPAD are trademarks of Texas Instruments.
3I
2
C is a trademark of NXP Semiconductors.
PRODUCTION DATA information is current as of publication date.
Copyright © 20062011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.

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