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TPS65050, TPS65051 TPS65052, TPS65054, TPS65056
SLVS710C – JANUARY 2007 – REVISED FEBRUARY 2017
TPS6505x 6-Channel Power-Management IC With Two Step-Down Converters and Four Low-Input Voltage LDOs
TPS65052 is Obsolete
1 Features
•1 Up To 95% Efficiency • Output Current for DC-DC Converters:
– TPS65050, TPS65054: 2 × 0.6 A – TPS65051, TPS65052 and TPS65056:
DCDC1 = 1 A; DCDC2 = 0.6 A • Output Voltages for DC-DC Converters
– Externally Adjustable and Fixed Versions Available
– Digital Voltage Selection for the DCDC2 • VI Range for DC-DC Converters
From 2.5 V to 6 V • 2.25-MHz Fixed-Frequency Operation • Power Save Mode at Light Load Current • 180° Out-of-Phase Operation • Output Voltage Accuracy in PWM Mode ±1% • Total Typical 32-μA Quiescent Current for Both
DC-DC Converters • 100% Duty Cycle for Lowest Dropout • Two General-Purpose 400-mA, High PSRR LDOs • Two General-Purpose 200-mA, High PSRR LDOs • VI range for LDOs From 1.5 V to 6.5 V • Digital Voltage Selection for the LDOs
2 Applications
• Cell Phones, Smart Phones • WLAN • PDAs, Pocket PCs • OMAP™ and Low-Power TMS320™ DSP Supply • Samsung S3C24xx Application Processor Supply • Portable Media Players
3 Description
The TPS6505x family of devices are integrated power-management ICs for applications powered by one Li-Ion or Li-Polymer cell, which require multiple power rails. The TPS6505x devices provide two highly efficient, 2.25-MHz step-down converters targeted at providing the core voltage and I/O voltage in a processor-based system. Both step-down converters enter a low-power mode at light load for maximum efficiency across the widest possible range of load currents. For low noise applications, the devices can be forced into fixed-frequency PWM mode by pulling the MODE pin high. The TPS6505x devices also integrate two 400-mA LDO and two 200mA LDO voltage regulators. Each LDO operates with an input voltage range from 1.5 V to 6.5 V, allowing them to be supplied from one of the step-down converters or directly from the main battery.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS6505x
VQFN (32)
4.00 mm × 4.00 mm
(1) For all available packages, see the orderable addendum at the end of the data sheet.
1 Vbat
VCC 1 …F
EN_DCDC1 ENABLE
MODE DEFLDO1 DEFLDO2 DEFLDO3 DEFLDO4
EN_DCDC2 ENABLE
VIN_LDO1 VIN
EN_LDO1 ENABLE
VIN_LDO2 VIN
EN_LDO2 ENABLE
VIN_LDO3/4 VIN
EN_LDO3 ENABLE
EN_LDO4 ENABLE
Vbat
Block Diagram
Interface
DCDC1 (I/O) Step-Down Converter
600 mA
DCDC2 (core) Step-Down Converter 600 mA
VINDCDC1/2
L1
R1 FB_DCDC1
22 …F
Cff 10 …F
PGND1
R2
L2 VDCDC2 DEFDCDC2 PGND2
R3
10 …F R4
Flip-flop with 32-ms debounce
VLDO1 400-mA LDO
VLDO2 400-mA LDO
VLDO3 200-mA LDO
VLDO4 200-mA LDO
VLDO1
VLDO2
4.7 …F
VLDO3
4.7 …F
BP
VLDO4
0.1 …F
PB_OUT
2.2 …F
I/O Voltage 2.2 …F
R19
Copyright © 2017, Texas Instruments Incorporated
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.
TPS65052 is Obsolete
TPS65050, TPS65051 TPS65052, TPS65054, TPS65056
SLVS710C – JANUARY 2007 – REVISED FEBRUARY 2017
www.ti.com
Table of Contents
1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Device Options....................................................... 3 6 Pin Configuration and Functions ......................... 3 7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ...................................... 5 7.2 ESD Ratings.............................................................. 6 7.3 Recommended Operating Conditions....................... 6 7.4 Thermal Information .................................................. 6 7.5 Electrical Characteristics........................................... 7 7.6 Dissipation Ratings ................................................... 9 7.7 Typical Characteristics .............................................. 9 8 Detailed Description ............................................ 11 8.1 Overview ................................................................. 11 8.2 Functional Block Diagrams ..................................... 12 8.3 Feature Description................................................. 17
8.4 Device Functional Modes........................................ 22 9 Application and Implementation ........................ 23
9.1 Application Information............................................ 23 9.2 Typical Application .................................