TPS65023-Q1_16 Datasheet, PDF (1/50 Pages) Texas Instruments – Power Management IC For Li-Ion Powered Systems

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TPS65023-Q1
SLVS927E – MARCH 2009 – REVISED MARCH 2016
TPS65023-Q1 Power Management IC For Li-Ion Powered Systems
1 Features
•1 Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature Range
– Device HBM ESD Classification Level 2
– Device CDM ESD Classification Level C4A
(RHA Package) or C5 (RSB Package)
• 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 A, 92% Efficient Step-Down Converter for
Memory Voltage (VDCDC3)
• 30 mA LDO/Switch for Real Time Clock (VRTC)
• 2 × 200 mA General-Purpose Low Dropout (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 Pulse-Frequency Modulation (PFM)
Mode
• Thermal Shutdown Protection
2 Applications
• Automotive Clusters
• Automotive Infotainment Systems
• Digital Radios
• Supply DaVinci™ Digital Signal Processor (DSP)
Family Solutions
3 Description
The TPS65023-Q1 device is an integrated power-
management integrated circuit (IC) for applications
powered by one Li-Ion or Li-Polymer cell, which
require multiple power rails. The TPS65023-Q1
device provides three highly efficient, step-down
converters targeted at providing the core voltage,
peripheral, input and output (I/O), and memory rails in
a processor-based system. The core converter allows
for on-the-fly voltage changes through a 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-Q1
VQFN (40)
WQFN (40)
6.00 mm × 6.00 mm
5.00 mm × 5.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
TPS65023-Q1
Example SoC
Monitored
Voltage1
R1
PWRFAIL
+
R2
±
Monitored
Voltage2
R3
LOWBATT
+
R4
±
DCDC1
DCDC2
2.2 µH
22 µF
2.2 µH
22 µF
CORE
1.8-V IO
Domain
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
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.