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TPS65020RHA Datasheet(PDF) 1 Page - Texas Instruments

Part # TPS65020RHA
Description  POWER MANAGEMENT IC FOR LI-ION POWERED SYSTEMS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS65020RHA Datasheet(HTML) 1 Page - Texas Instruments

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FEATURES
DESCRIPTION
APPLICATIONS
TPS65020
SLVS607 – SEPTEMBER 2005
POWER MANAGEMENT IC FOR LI-ION POWERED SYSTEMS
1.2 A, 97% Efficient Step-Down Converter for
The TPS65020 is an integrated Power Management
System Voltage (VDCDC1)
IC
for
applications
powered
by
one
Li-Ion
or
Li-Polymer cell, and which require multiple power
1 A, Up to 95% Efficient Step-Down Converter
rails. The TPS65020 provides three highly efficient,
for Memory Voltage (VDCDC2)
step-down converters targeted at providing the core
800 mA, 90% Efficient Step-Down Converter
voltage, peripheral, I/O and memory rails in a pro-
for Processor Core (VDCDC3)
cessor based system. All three step-down converters
20 mA LDO/Switch for Real Time Clock
enter a low-power mode at light load for maximum
efficiency across the widest possible range of load
(VRTC)
currents. The TPS65020 also integrates two 50 mA
2
× 50 mA LDO for SRAM and PLL
LDO voltage regulators, which are enabled with an
Dynamic Voltage Management for Processor
external input pin. Each LDO operates with an input
Core
voltage range between 1.5 V and 6.5 V, allowing
them to be supplied from one of the step-down
Externally Adjustable Reset Delay Time
converters or directly from the main battery. The two
Battery Backup Functionality
50-mA LDO voltage regulators are intended for use
Separate Enable Pins for Inductive Converters
with the SDRAM and PLL power supply in a Intel
I2C™ Compatible Serial Interface
PXA270 based system. The serial interface is used
for dynamic voltage scaling of the core voltage,
85-
µA Quiescent Current
masking interrupts, or for dis/enabling and setting the
Low Ripple PFM Mode
LDO output voltages. The interface is compatible with
Thermal Shutdown Protection
the Fast/Standard mode I2C™ specification, allowing
transfers at up to 400 kHz.
Push Button I/O
The
TPS65020
incorporates
a
push
button
debounced input and latched output for implemen-
tation of a push-button turn-on feature, typically
PDA
required in smartphones or wireless PDAs.
Cellular/Smart Phone
Internet Audio Player
Digital Still Camera
Digital Radio Player
Split Supply DSP and
µP Solutions:
OMAP1610, OMAP1710, OMAP330
Intel PXA270, etc.
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.
PowerPAD is a trademark of Texas Instruments.
I2C is a trademark of Philips Electronics.
PRODUCTION DATA information is current as of publication date.
Copyright © 2005, 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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