1 Features

• 3 Buck converters at up to 2.3-MHz switching

frequency.

– 1x VIN: 2.5 V – 5.5 V; IOUT: 3.5 A; VOUT 0.6 V –

3.4 V

– 2x VIN: 2.5 V – 5.5 V; IOUT: 2 A; VOUT 0.6 V –

3.4 V

• 4 linear regulators:

– 2x VIN: 1.5 V – 5.5 V; IOUT: 400 mA; VOUT:

0.6 V – 3.4 V (configurable as load switch and

bypass-mode, supporting SD-Card)

– 2x VIN: 2.2 V – 5.5 V; IOUT: 300 mA; VOUT: 1.2

V – 3.3 V (configurable as load switch)

• Dynamic voltage scaling on all three buck

converters

• Low IQ/PFM, PWM-mode (quasi-fixed frequency)

or fixed frequency mode

• Programmable power sequencing and default

voltages

• I2C interface, supporting standard, fast-mode and

fast-mode+

• Designed to support systems with 14+ rails

(2x TPS6521905-Q1 devices in multi-PMIC

configuration)

• 2 GPOs, 1 GPIO, and 3 multi-function-pins

• EEPROM programmability

• Functional safety capable

2 Applications

• Low power automotive MPUs such as AM62x-Q1

and AM64x-Q1

• Head units, Digital Cluster, Telematic Control

Units, Lidar Proc.

• DMS/OMS, eMirror and CMS

• Automotive Lighting

• Automotive Audio Amplifiers

• Powertrain

• ISP and deep learning

3 Description

The TPS6521905-Q1 is a Power Management IC

(PMIC) designed to supply a wide range of SoCs in

automotive applications. The device is characterized

across an ambient temperature range of -40°C to

+125°C, making the PMIC an excellent choice for

automotive applications. The device includes three

synchronous stepdown DC-DC converters and four

linear regulators.

The DC-DC converters are capable of 1x 3.5 A and

2x 2 A. The converters require a small 470 nH

inductor, 4.7 μF input capacitance, and a minimum

10 μF output capacitance per rail depending on the

switching mode configuration.

Two of the LDOs support output currents of 400

mA at an output voltage range of 0.6 V to 3.4 V.

These LDOs support bypass mode, acting as a loadswitch,

and allow voltage-changes during operation.

The other two LDOs support output currents of 300

mA at an output voltage range of 1.2 V to 3.3 V.

These LDOs also support load-switch mode.

The I2C-interface, IOs, GPIOs and multi-function-pins

(MFP) allow a seamless interface to a wide range of

SoCs.