TPS65023-Q1 Datasheet, PDF (1/53 Pages) Texas Instruments – POWER MANAGEMENT IC FOR LI-ION POWERED SYSTEMS

TPS65023-Q1
www.ti.com
SLVS927D – MARCH 2009 – REVISED SEPTEMBER 2011
POWER MANAGEMENT IC FOR LI-ION POWERED SYSTEMS
Check for Samples: TPS65023-Q1
FEATURES
1
•23 Qualified for Automotive Applications
• 1.5 A, 90% Efficient Step-Down Converter for
Processor Core (VDCDC1)
• 1.2 A, Up to 95% Efficient Step-Down
Converter for System Voltage (VDCDC2)
• 1.0 A, 92% Efficient Step-Down Converter for
Memory Voltage (VDCDC3)
• 30 mA LDO/Switch for Real Time Clock (VRTC)
• 2 × 200 mA General-Purpose LDO
• Dynamic Voltage Management for Processor
Core
• Preselectable LDO Voltage Using Two Digital
Input Pins
• Externally Adjustable Reset Delay Time
• Battery Backup Functionality
• Separate Enable Pins for Inductive Converters
• I²C™ Compatible Serial Interface
• 85-μA Quiescent Current
• Low Ripple PFM Mode
• Thermal Shutdown Protection
• 40-Pin 5-mmx5-mm QFN (RSB) or
6-mmx6-mm QFN (RHA) Package
APPLICATIONS
• Digital Media Players
• Internet Audio Player
• Digital Still Camera
• Digital Radio Player
• Supply DaVinci™ DSP Family Solutions
DESCRIPTION
The TPS65023 is an integrated Power Management IC for applications powered by one Li-Ion or Li-Polymer cell,
and which require multiple power rails. The TPS65023 provides three highly efficient, step-down converters
targeted at providing the core voltage, peripheral, I/O and memory rails in a processor based system. The core
converter allows for on-the-fly voltage changes via serial interface, allowing the system to implement dynamic
power savings. All three step-down converters enter a low-power mode at light load for maximum efficiency
across the widest possible range of load currents. The TPS65023 also integrates two general-purpose 200 mA
LDO voltage regulators, which are enabled with an external input pin. Each LDO operates with an input voltage
range between 1.5 V and 6.5 V, allowing them to be supplied from one of the step-down converters or directly
from the battery. The default output voltage of the LDOs can be digitally set to 4 different voltage combinations
using the DEFLDO1 and DEFLDO2 pins. The serial interface can be used for dynamic voltage scaling, masking
interrupts, or for dis/enabling and setting the LDO output voltages. The interface is compatible with the
Fast/Standard mode I²C specification, allowing transfers at up to 400 kHz. The TPS65023 is available in 40-pin
QFN packages (RHA and RSB), and operates over a free-air temperature of –40°C to 125°C.
T_A
–40°C to 125°C
QFN – RSB
QFN – RHA
ORDERING INFORMATION⁽¹⁾
PACKAGE ⁽²⁾
ORDERABLE PART NUMBER
Reel of 3000
TPS65023QRSBRQ1
Reel of 2500
TPS65023QRHARQ1
TOP-SIDE MARKING
TPS65023Q
65023QRHA
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
1
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.
DaVinci, PowerPAD are trademarks of Texas Instruments.
2
I²C is a trademark of Philips Electronics.
3
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2009–2011, Texas Instruments Incorporated