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See Technical Specifications

TPS54618CQRTERQ1 +BOM

Step-down 6A converter

Manufacturer:

TI
Mfr.Part #:

TPS54618CQRTERQ1
Datasheet:

TPS54618CQRTERQ1 Datasheet (PDF)
Vin (min) (V):

2.95
Vin (max) (V):

6
Vout (min) (V):

0.8
Vout (max) (V):

4.5
EDA/CAD Models:

Request Free CAD Models for TPS54618CQRTERQ1

TPS54618CQRTERQ1 General Description

The TPS54618C-Q1 device is a full-featured 6-V, 6-A, synchronous step-down current-mode converter with two integrated MOSFETs.

The TPS54618C-Q1 enables small designs by integrating the MOSFETs, implementing current-mode control to reduce external component count, reducing inductor size by enabling up to 2-MHz switching frequency, and minimizing the IC footprint with a small, 3-mm × 3-mm, thermally-enhanced WQFN package.

The TPS54618C-Q1 provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (VREF) over temperature.

Efficiency is maximized through the integrated 12-mΩ MOSFETs and 515-µA typical supply current. Using the enable pin, shutdown supply current is reduced to 5.5-µA by entering a shutdown mode.

Undervoltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output-voltage start-up ramp is controlled by the slow-start pin. An open-drain power-good signal indicates the output is within 93% to 107% of its nominal voltage.

Frequency foldback and thermal shutdown protect the device during an overcurrent condition.

TPS54618CQRTERQ1 Pinout

TPS54618CQRTERQ1 Pinout

Key Features

AEC-Q100 qualified for automotive applications:
- Temperature grade 1: -40°C to +125°C, T_A
Functional Safety-Capable
- Documentation available to aid functional safety system design
Two 12-mΩ (typical) MOSFETs for high efficiency at 6-A loads
300-kHz to 2-MHz switching frequency
0.8-V ±1% Voltage reference over temperature (–40°C to +150°C)
Synchronizes to external clock
Adjustable slow start and sequencing
UV and OV power-good output
New product available: TPS62816-Q1, 6-V step-down converter in 2-mm x 3-mm QFN package with wettable flanks
Thermally-enhanced 3-mm × 3-mm, 16-pin WQFN package

Application

Automotive head unit
Automotive instrument cluster
Automotive ADAS camera

Specifications

Vin (min) (V)	2.95	Vin (max) (V)	6
Vout (min) (V)	0.8	Vout (max) (V)	4.5
Iout (max) (A)	6	Iq (typ) (mA)	0.515
Switching frequency (min) (kHz)	200	Switching frequency (max) (kHz)	2000
Features	Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable	Operating temperature range (°C)	-40 to 125
Rating	Automotive	TI functional safety category	Functional Safety-Capable
Regulated outputs (#)	1	Control mode	current mode
Duty cycle (max) (%)	98	Type	Converter
Pin Count	17	Released Date	Apr 14, 2021
Last Modified Date	Mar 7, 2023 4:10 PM UTC