TPS65023_15 Datasheet, PDF (1/47 Pages) Texas Instruments – Power Management IC

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TPS65023, TPS65023B
SLVS670K – JUNE 2006 – REVISED DECEMBER 2015
TPS65023x Power Management IC
for Li-Ion and Li-Polymer Powered Systems
1 Features
•1 1.7-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 and 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
• I²C™ Setup and Hold Timing:
– TPS65023: 300 ns
– TPS65023B: 100 ns
• 85-μA Quiescent Current
• Low Ripple PFM Mode
• Thermal Shutdown Protection
• 40-Pin, 5-mm × 5-mm WQFN Package
2 Applications
• Digital Media Players
• Internet Audio Players
• Digital Still Cameras
• Smart Phones
• Supply DaVinci™ DSP Family Solutions
3 Description
The TPS65023x device is an integrated power
management IC for applications powered by one
Li-Ion or Li-Polymer cell, which require multiple power
rails. The TPS65023x 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 through 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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS65023
TPS65023B
WQFN (40)
5.00 mm × 5.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
TPS6502x
Example SoC
Monitored
Voltage1
R1
R2
Monitored
Voltage2
R3
R4
PWRFAIL
+
±
LOWBATT
+
±
DCDC1
DCDC2
2.2 µH
22 µF
2.2 µH
22 µF
LDO1
BACKUP
RTC AND
VBACKUP
RESPWRON
2.2 µF
DCDC1_EN
DCDC2_EN
DCDC3_EN
LDO_EN
DEFDCDC1
DEFDCDC2
DEFDCDC3
Enables
and
Vout
Select
DCDC3
LDO1
2.2 µF
2.2 µH
22 µF
2.2 µF
CORE
1.8-V IO
Domain
3.3-V IO
Domain
System Reset
Memory
Memory
Peripherals
System Platform
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.