Product details

Regulated outputs (#) 7 Vin (Min) (V) 2.2 Vin (Max) (V) 5.5 Iout (Max) (A) 1.8 Rating Catalog Step-down DC/DC controller 0 Step-down DC/DC converter 5 Step-up DC/DC controller 0 Step-up DC/DC converter 1 LDO 1 Iq (Typ) (mA) 0.025 Features Dynamic Voltage Scaling, Eco-mode, I2C Control, Over Current Protection, Power Good, Power Sequencing, Power Supply and System Monitoring, Thermal Shutdown, UVLO Adjustable Operating temperature range (C) -40 to 105 Processor name AM64x Processor supplier Texas Instruments Shutdown current (ISD) (Typ) (uA) 5 Configurability Factory programmable
Regulated outputs (#) 7 Vin (Min) (V) 2.2 Vin (Max) (V) 5.5 Iout (Max) (A) 1.8 Rating Catalog Step-down DC/DC controller 0 Step-down DC/DC converter 5 Step-up DC/DC controller 0 Step-up DC/DC converter 1 LDO 1 Iq (Typ) (mA) 0.025 Features Dynamic Voltage Scaling, Eco-mode, I2C Control, Over Current Protection, Power Good, Power Sequencing, Power Supply and System Monitoring, Thermal Shutdown, UVLO Adjustable Operating temperature range (C) -40 to 105 Processor name AM64x Processor supplier Texas Instruments Shutdown current (ISD) (Typ) (uA) 5 Configurability Factory programmable
VQFN (RSL) 48 36 mm² 6 x 6
  • Three Adjustable Step-Down Converters With Integrated Switching FETs (DCDC1, DCDC2, and DCDC3):
    • DCDC1: 1.1-V Default, up to 1.8 A
    • DCDC2: 1.0-V Default, up to 1.8A
    • DCDC3: 1.8-V Default, up to 1.8 A
    • VIN Range From 2.7 V to 5.5 V
    • Adjustable Output Voltage Range 0.85 V to 1.675 V (DCDC1 and DCDC2)
    • Adjustable Output Voltage Range 0.9 V to 3.4 V (DCDC3)
    • Power Save Mode at Light Load Current
    • 100% Duty Cycle for Lowest Dropout
    • Active Output-Discharge When Disabled
  • One Adjustable Buck-Boost Converter With Integrated Switching FETs (DCDC4):
    • DCDC4: 2.5-V Default, up to 1.6 A
    • VIN Range from 2.7 V to 5.5 V
    • Adjustable Output Voltage Range from 1.175 V to 3.4 V
    • Active Output-Discharge When Disabled
  • Two Low-Quiescent Current, High Efficiency Step-Down Converters for Battery Backup Domain (DCDC5, DCDC6)
    • DCDC5: 1-V Output
    • DCDC6: 1.8-V Output
    • VIN Range from 2.2 V to 5.5 V
    • Supplied From System Power or Coin-Cell Backup Battery
  • Adjustable General-Purpose LDO (LDO1)
    • LDO1: 3.3-V Default up to 400 mA
    • VIN Range from 1.8 V to 5.5 V
    • Adjustable Output Voltage Range from 0.9 V to 3.4 V
    • Active Output-Discharge When Disabled
  • Low-Voltage Load Switch (LS1) With 350-mA Current Limit
    • VIN Range From 1.2 V to 3.6 V
    • 110-mΩ (Max) Switch Impedance at 1.35 V
  • 5-V Load Switch (LS2) With 100-mA or 500-mA Selectable Current Limit
    • VIN Range From to 5.5 V
    • 500-mΩ (Max) Switch Impedance at 5 V
  • High-Voltage Load Switch ( LS3) With 100-mA or 500-mA Selectable Current Limit
    • VIN Range From 1.8 V to 10 V
    • 500-mΩ (Max) Switch Impedance
  • Supervisor With Built-in Supervisor Function Monitors
    • DCDC1, DCDC2 ±4% Tolerance
    • DCDC3, DCDC4 ±5% Tolerance
    • LDO1 ±5% Tolerance
  • Protection, Diagnostics, and Control:
    • Undervoltage Lockout (UVLO)
    • Always-on Push-Button Monitor
    • Overtemperature Warning and Shutdown
    • Separate Power-Good Output for Backup and Main Supplies
    • I2C Interface (Address 0x24) (See Timing Requirements for I2C Operation at 400 kHz)
  • Three Adjustable Step-Down Converters With Integrated Switching FETs (DCDC1, DCDC2, and DCDC3):
    • DCDC1: 1.1-V Default, up to 1.8 A
    • DCDC2: 1.0-V Default, up to 1.8A
    • DCDC3: 1.8-V Default, up to 1.8 A
    • VIN Range From 2.7 V to 5.5 V
    • Adjustable Output Voltage Range 0.85 V to 1.675 V (DCDC1 and DCDC2)
    • Adjustable Output Voltage Range 0.9 V to 3.4 V (DCDC3)
    • Power Save Mode at Light Load Current
    • 100% Duty Cycle for Lowest Dropout
    • Active Output-Discharge When Disabled
  • One Adjustable Buck-Boost Converter With Integrated Switching FETs (DCDC4):
    • DCDC4: 2.5-V Default, up to 1.6 A
    • VIN Range from 2.7 V to 5.5 V
    • Adjustable Output Voltage Range from 1.175 V to 3.4 V
    • Active Output-Discharge When Disabled
  • Two Low-Quiescent Current, High Efficiency Step-Down Converters for Battery Backup Domain (DCDC5, DCDC6)
    • DCDC5: 1-V Output
    • DCDC6: 1.8-V Output
    • VIN Range from 2.2 V to 5.5 V
    • Supplied From System Power or Coin-Cell Backup Battery
  • Adjustable General-Purpose LDO (LDO1)
    • LDO1: 3.3-V Default up to 400 mA
    • VIN Range from 1.8 V to 5.5 V
    • Adjustable Output Voltage Range from 0.9 V to 3.4 V
    • Active Output-Discharge When Disabled
  • Low-Voltage Load Switch (LS1) With 350-mA Current Limit
    • VIN Range From 1.2 V to 3.6 V
    • 110-mΩ (Max) Switch Impedance at 1.35 V
  • 5-V Load Switch (LS2) With 100-mA or 500-mA Selectable Current Limit
    • VIN Range From to 5.5 V
    • 500-mΩ (Max) Switch Impedance at 5 V
  • High-Voltage Load Switch ( LS3) With 100-mA or 500-mA Selectable Current Limit
    • VIN Range From 1.8 V to 10 V
    • 500-mΩ (Max) Switch Impedance
  • Supervisor With Built-in Supervisor Function Monitors
    • DCDC1, DCDC2 ±4% Tolerance
    • DCDC3, DCDC4 ±5% Tolerance
    • LDO1 ±5% Tolerance
  • Protection, Diagnostics, and Control:
    • Undervoltage Lockout (UVLO)
    • Always-on Push-Button Monitor
    • Overtemperature Warning and Shutdown
    • Separate Power-Good Output for Backup and Main Supplies
    • I2C Interface (Address 0x24) (See Timing Requirements for I2C Operation at 400 kHz)

The TPS6521855 is a single chip, power-management IC (PMIC) specifically designed to support the AM64x line of processors in both portable (Li-Ion battery) and nonportable (5-V adapter) applications. The device is characterized across a –40°C to +105°C temperature range, making it suitable for various industrial applications.

The TPS6521855 is a single chip, power-management IC (PMIC) specifically designed to support the AM64x line of processors in both portable (Li-Ion battery) and nonportable (5-V adapter) applications. The device is characterized across a –40°C to +105°C temperature range, making it suitable for various industrial applications.

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* Data sheet TPS6521855 Power Management IC (PMIC) for AM64x Arm® Cortex®-A53 Processors datasheet (Rev. A) 23 Jul 2021
Technical article 3 quiescent-current (Iq) specifications you need to understand 12 Nov 2021

Design & development

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Evaluation board

TMDS64GPEVM — AM64x GP EVM development platform for evaluating Sitara AM64x processor

The AM64x EVM is a standalone test, development, and evaluation module (EVM) that lets developers evaluate AM64x's functionality and develop prototypes for a variety of applications.

The EVM is equipped with a Sitara™ AM6442 processor along with additional components to allow the user to make (...)

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PROCESSOR-SDK-AM64X — Software Development Kit for AM64x Sitara™ processors

The Processor and MCU+ SDKs (Software Development Kits) are unified software platforms for TI embedded processors providing easy setup and fast out-of-the-box access to benchmarks and demos. All releases of these SDKs are consistent across TI’s broad portfolio for which they are provided, (...)
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