TPS65020_16 Datasheet, PDF (1/53 Pages) Texas Instruments – Power Management IC

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TPS65020
SLVS607D – SEPTEMBER 2005 – REVISED JANUARY 2016
TPS65020 Power Management IC For Li-Ion or Li-Polymer Powered Systems
1 Features
•1 1.2-A, 97% Efficient Step-Down Converter for
System Voltage (VDCDC1)
• 1-A, Up to 95% Efficient Step-Down Converter for
Memory Voltage (VDCDC2)
• 800-mA, 90% Efficient Step-Down Converter for
Processor Core (VDCDC3)
• 20-mA LDO and Switch for Real-Time Clock
(VRTC)
• 2 × 200-mA LDO for SRAM and PLL
• Dynamic Voltage Management for Processor Core
• 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
• Push-Button I/O
2 Applications
• PDAs
• Cellular and Smart Phones
• Internet Audio Players
• Digital Still Cameras
• Digital Radio Players
• Split-Supply TMS320™ DSP Family and μP
Solutions: OMAP™1610, OMAP1710, OMAP330
• Intel^® PXA270, and so Forth
3 Description
The TPS65020 device is an integrated power
management IC for applications powered by one
Li-Ion or Li-Polymer cell, and which requires multiple
power rails.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS65020
VQFN (40)
6.00 mm × 6.00 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
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.