Product details

Regulated outputs (#) 6 Vin (Min) (V) 2.5 Vin (Max) (V) 6 Iout (Max) (A) 1.7 Rating Catalog Step-down DC/DC controller 0 Step-down DC/DC converter 3 Step-up DC/DC controller 0 Step-up DC/DC converter 0 LDO 3 Iq (Typ) (mA) 0.085 Features Comm Control, Power Good, Power Sequencing Operating temperature range (C) -40 to 85 Processor name DM357x, DM644x, OMAP35xx, AM35xx, OMAP-L1xx Processor supplier Texas Instruments Shutdown current (ISD) (Typ) (uA) 23 Configurability Hardware configurable, Software configurable
Regulated outputs (#) 6 Vin (Min) (V) 2.5 Vin (Max) (V) 6 Iout (Max) (A) 1.7 Rating Catalog Step-down DC/DC controller 0 Step-down DC/DC converter 3 Step-up DC/DC controller 0 Step-up DC/DC converter 0 LDO 3 Iq (Typ) (mA) 0.085 Features Comm Control, Power Good, Power Sequencing Operating temperature range (C) -40 to 85 Processor name DM357x, DM644x, OMAP35xx, AM35xx, OMAP-L1xx Processor supplier Texas Instruments Shutdown current (ISD) (Typ) (uA) 23 Configurability Hardware configurable, Software configurable
DSBGA (YFF) 49 0 mm² 3.106 x 3.122 WQFN (RSB) 40 25 mm² 5 x 5
  • 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)
  • 0.8-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
  • 85-µA Quiescent Current
  • Low-Ripple PFM Mode
  • Thermal Shutdown Protection
  • Available in 40-Pin, 5-mm × 5-mm VQFN (RSB) or
    49-Ball, 3-mm × 3-mm DSBGA (YFF) Package
  • 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)
  • 0.8-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
  • 85-µA Quiescent Current
  • Low-Ripple PFM Mode
  • Thermal Shutdown Protection
  • Available in 40-Pin, 5-mm × 5-mm VQFN (RSB) or
    49-Ball, 3-mm × 3-mm DSBGA (YFF) Package

The TPS650231 device is an integrated power management IC for applications powered by one Li-Ion or Li-Polymer cell, and which requires multiple power rails. The TPS650231 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. The TPS650231 also integrates two general-purpose, 200-mA LDO voltage regulators, which are enabled with an external input pin. Each LDO operates with an input voltage range from 1.5 V to 6.5 V, thus allowing them to be supplied from one of the step-down converters or directly from the battery. The default output voltage of the LDOs can be digitally set to 4 different voltage combinations using the DEFLDO1 and DEFLDO2 pins. The serial interface can be used for dynamic voltage scaling, masking interrupts, or for disabling, enabling, and setting the LDO output voltages. The interface is compatible with the fast and standard mode I2C specifications, allowing transfers at up to 400 kHz. The TPS650231 is available in a 40-pin VQFN (RSB) package or in a 49-ball DSBGA (YFF) package, and operates over a free-air temperature of –40°C to +85°C.

The TPS650231 device is an integrated power management IC for applications powered by one Li-Ion or Li-Polymer cell, and which requires multiple power rails. The TPS650231 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. The TPS650231 also integrates two general-purpose, 200-mA LDO voltage regulators, which are enabled with an external input pin. Each LDO operates with an input voltage range from 1.5 V to 6.5 V, thus allowing them to be supplied from one of the step-down converters or directly from the battery. The default output voltage of the LDOs can be digitally set to 4 different voltage combinations using the DEFLDO1 and DEFLDO2 pins. The serial interface can be used for dynamic voltage scaling, masking interrupts, or for disabling, enabling, and setting the LDO output voltages. The interface is compatible with the fast and standard mode I2C specifications, allowing transfers at up to 400 kHz. The TPS650231 is available in a 40-pin VQFN (RSB) package or in a 49-ball DSBGA (YFF) package, and operates over a free-air temperature of –40°C to +85°C.

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Technical documentation

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Type Title Date
* Data sheet TPS650231 Power Management IC for Li-Ion Powered Systems datasheet (Rev. A) 08 Sep 2011
Technical article 3 quiescent-current (Iq) specifications you need to understand 12 Nov 2021
Application note Optimizing Resistor Dividers at a Comparator (Rev. B) 30 Apr 2021
Application note LDO Noise Demystified (Rev. B) 18 Aug 2020
Application note LDO PSRR Measurement Simplified (Rev. A) 09 Aug 2017
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 17 Aug 2015
Application note TPS65023x Check List 20 Jul 2015
User guide TPS65023B/TPS650231EVM User's Guide 11 Oct 2010
Application note DaVinci Sequencing Using The TPS65023 02 Apr 2007

Design & development

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Evaluation board

TPS650231EVM-664 — TPS650231 Evaluation Module

The Texas Instruments TPS650231EVM-664 is an integrated power management integrated circuit (IC) for applications that are powered with one Li-ion or Li-polymer cell and require multiple power rails. The TPS650231 contains three highly efficient switching step-down converters, two LDOs, and (...)

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Simulation model

TPS65023 PSpice Unencrypted Transient Model

SLVMDJ4.ZIP (688 KB) - PSpice Model
Package Pins Download
DSBGA (YFF) 49 View options
WQFN (RSB) 40 View options

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