TPS650331-Q1中文资料德州仪器数据手册PDF规格书

1 Features

• Qualified for automotive applications

• Systematic capability of up to ASIL D and SIL 3

targeted

• Hardware integrity up to ASIL B and SIL 2 targeted

• Advanced diagnostics and protection

– Integrated voltage monitors

– I2C interface for control and diagnostics

• AEC-Q100 grade 1 qualified

– -40°C to +125°C ambient operating

temperature range

• Three step-down converters:

– BUCK1 VIN range from 4.0 V to 18.3 V

– BUCK1 VOUT range from 2.5 V to 4.0 V

– BUCK1 output current up to 1500-mA

– BUCK2 and BUCK3 VIN range from 2.5 V to 5.5

V

– BUCK2 and BUCK3 VOUT range from 0.9 V to

1.9 V

– BUCK2 and BUCK3 output current up to 1200-

mA

– Spread-spectrum clock (SSC) generation for

reduced EMI

– 2.3-MHz forced fixed switching frequency PWM

operation

• One low dropout (LDO) regulator:

– VIN range from 2.5 V to 5.5 V

– VOUT range from 1.8 V to 3.3 V

– Low noise and high PSRR

– Adjustable output voltage through I2C

– Up to 300-mA output current

• 4.0-mm × 4.0-mm 24-pin VQFN with wettable

flanks

2 Applications

• Automotive camera modules

– Surround view camera modules

– Rear view camera modules

– Driver monitor camera modules

– Power over coax (POC) camera modules

– E-mirror camera modules

– Front view camera modules

3 Description

The TPS650331-Q1 device is a highly integrated

power management IC for automotive camera

modules. This device combines three step-down

converters and one low-dropout (LDO) regulator. The

BUCK1 step-down converter has an input voltage

range up to 18.3 V for connections to power over

coax (PoC). All converters operate in a forced fixedfrequency

PWM mode. The LDO can supply 300 mA

and operate with an input voltage range from 2.5 V to

5.5 V. The step-down converters and the LDO have

separate voltage inputs that enable maximum design

and sequencing flexibility.

The TPS650331-Q1 is available in a 24-pin VQFN

package (4.00 mm × 4.00 mm).