Product details

Regulated outputs (#) 7 Vin (Min) (V) 2.7 Vin (Max) (V) 5.5 Iout (Max) (A) 1.2 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 4 Features Comm Control, Power Sequencing Operating temperature range (C) -40 to 85 Processor name OMAP35xx Processor supplier Texas Instruments Configurability Factory programmable
Regulated outputs (#) 7 Vin (Min) (V) 2.7 Vin (Max) (V) 5.5 Iout (Max) (A) 1.2 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 4 Features Comm Control, Power Sequencing Operating temperature range (C) -40 to 85 Processor name OMAP35xx Processor supplier Texas Instruments Configurability Factory programmable
NFBGA (ZBH) 120 36 mm² 6 x 6
  • Three Step-Down Converters:
    • Up to 1.2 A of Output Current for VDD1
      • TPS65921B Supports VDD1 up to 1.2 A
      • TPS65921B1 Supports VDD1 up to 1.4 A (Necessary for 1-GHz Operation)
    • SmartReflex Dynamic Voltage Management
    • 3.2-MHz Fixed Frequency Operation
    • VIN Range from 2.7 to 4.5 V
    • Typical 30 µA Quiescent per Converter
  • Four General-Purpose Configurable LDOs:
    • Dynamic Voltage Scaling
    • 220-mA Maximum Current for One LDO
    • VIN Range from 2.7 to 4.5 V
    • 2 LDOs With Low Noise and High PSRR
  • RTC With Alarm Wake-Up Mechanism
  • Clock Management
    • 32-kHz Crystal Oscillator
    • Clock Slicer for 26, 19.2, and 38.4 MHz
    • HF Clock Output Buffer
  • USB:
    • USB HS 2.0 Transceiver
    • USB 1.3 OTG-Compliant
    • 12-Bit ULPI 1.1 Interface
    • USB Power Supply (5-V CP for VBUS)
  • Control
    • High-Speed I2C Interface
    • All Resource Configurable by I2C
  • Keypad Interface up to 8 × 8
  • 10-Bit A/D Converter
  • Hot-Die, Thermal Shutdown Protection
  • µ*BGA 120 Balls ZQZ
  • Three Step-Down Converters:
    • Up to 1.2 A of Output Current for VDD1
      • TPS65921B Supports VDD1 up to 1.2 A
      • TPS65921B1 Supports VDD1 up to 1.4 A (Necessary for 1-GHz Operation)
    • SmartReflex Dynamic Voltage Management
    • 3.2-MHz Fixed Frequency Operation
    • VIN Range from 2.7 to 4.5 V
    • Typical 30 µA Quiescent per Converter
  • Four General-Purpose Configurable LDOs:
    • Dynamic Voltage Scaling
    • 220-mA Maximum Current for One LDO
    • VIN Range from 2.7 to 4.5 V
    • 2 LDOs With Low Noise and High PSRR
  • RTC With Alarm Wake-Up Mechanism
  • Clock Management
    • 32-kHz Crystal Oscillator
    • Clock Slicer for 26, 19.2, and 38.4 MHz
    • HF Clock Output Buffer
  • USB:
    • USB HS 2.0 Transceiver
    • USB 1.3 OTG-Compliant
    • 12-Bit ULPI 1.1 Interface
    • USB Power Supply (5-V CP for VBUS)
  • Control
    • High-Speed I2C Interface
    • All Resource Configurable by I2C
  • Keypad Interface up to 8 × 8
  • 10-Bit A/D Converter
  • Hot-Die, Thermal Shutdown Protection
  • µ*BGA 120 Balls ZQZ

The TPS65921 device is a highly integrated power-management circuit (IC) that supports the power and peripheral requirements of the OMAP application processors. The device contains power management, a universal serial bus (USB) high-speed (HS) transceiver, an analog-to-digital converter (ADC), a real-time clock (RTC), a keypad interface, and an embedded power control (EPC). The power portion of the device contains three buck converters, two controllable by a dedicated SmartReflex class-3 interface, multiple low-dropout (LDO) regulators, an EPC to manage the power-sequencing requirements of OMAP, and an RTC module. The USB module provides an HS 2.0 transceiver suitable for direct connection to the OMAP universal transceiver macrocell interface (UTMI) + low pin interface (ULPI) with an integrated charge pump (CP).

The device also provides auxiliary modules: ADC, keypad interface, and general-purpose inputs/outputs (GPIOs) muxed with the JTAG functions. The keypad interface implements a built-in scanning algorithm to decode hardware-based key presses and to reduce software use, with multiple additional GPIOs that can be used as interrupts when they are configured as inputs.

The TPS65921 device is a highly integrated power-management circuit (IC) that supports the power and peripheral requirements of the OMAP application processors. The device contains power management, a universal serial bus (USB) high-speed (HS) transceiver, an analog-to-digital converter (ADC), a real-time clock (RTC), a keypad interface, and an embedded power control (EPC). The power portion of the device contains three buck converters, two controllable by a dedicated SmartReflex class-3 interface, multiple low-dropout (LDO) regulators, an EPC to manage the power-sequencing requirements of OMAP, and an RTC module. The USB module provides an HS 2.0 transceiver suitable for direct connection to the OMAP universal transceiver macrocell interface (UTMI) + low pin interface (ULPI) with an integrated charge pump (CP).

The device also provides auxiliary modules: ADC, keypad interface, and general-purpose inputs/outputs (GPIOs) muxed with the JTAG functions. The keypad interface implements a built-in scanning algorithm to decode hardware-based key presses and to reduce software use, with multiple additional GPIOs that can be used as interrupts when they are configured as inputs.

Download

Technical documentation

star = Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 12
Type Title Date
* Data sheet TPS65921 Power Management and USB Single Chip datasheet (Rev. G) 29 Sep 2014
* Errata TPS65921 Silicon Errata 08 Sep 2010
Technical article 3 quiescent-current (Iq) specifications you need to understand 12 Nov 2021
User guide IPM MicroStar BGA Discontinued and Redesigned 03 Nov 2020
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Technical article Power Tips: My personal IoT and how I would power my favorite 23 Jun 2014
Application note TPS65921 PCB Layout Guidelines (Rev. A) 15 Mar 2012
User guide TPS65921 Register Manual (Rev. C) 15 Mar 2012
Application note Using Power IC for OMAP34xx to 36xx Family 24 Jan 2011
User guide Differences in Features for TPS65920 and TPS65921 (Rev. B) 17 Dec 2010
Application note TPS65950/930/920/921 USB Eye Diagram Trimming 19 Nov 2010
Application note TPS65921 USB Charger Detection 17 Nov 2010

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Driver or library

TWL4030SW-LINUX — Linux Driver for TWL4030

The Linux driver supports the TWL4030 series of Integrated Power Management ICs. The Linux driver supports communication through the I2C bus and interfaces with various sub-systems.

 

Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:

  • twl4030
  • (...)
Simulation model

TPS65921 IBIS Model

SWCM005.ZIP (306 KB) - IBIS Model
Package Pins Download
NFBGA (ZBH) 120 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos