TPS54388C-Q1

AKTIV

Synchroner Abwärtswandler, 2,95 bis 6 V, 3 A, 2 MHz, für die Automobilindustrie

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Datenblatt

document-pdfAcrobat TPS54388C-Q1 Automotive 2.95-V to 6-V, 3-A , 2-MHz Synchronous Buck Converter datasheet (Rev. B) (Englisch) PDF | HTML

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TPS62813-Q1

AKTIV

Abwärtswandler für die Automobilindustrie, 2,75 bis 6 V, 3 A, mit fester Schaltfrequenz und SYNC in Improved performance: Fixed-frequency, spread-spectrum in smaller 2-mm x 3-mm QFN with wettable flanks.

TPS54388C-Q1

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Rating

Automotive

Topology

Buck

Iout (max) (A)

3

Vin (max) (V)

6

Vin (min) (V)

2.95

Vout (max) (V)

4.5

Vout (min) (V)

0.8

Features

Enable, Forced PWM, Frequency synchronization, Power good

Control mode

current mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.000515

Duty cycle (max) (%)

100

TI functional safety category

Functional Safety-Capable

Rating

Automotive

Topology

Buck

Iout (max) (A)

3

Vin (max) (V)

6

Vin (min) (V)

2.95

Vout (max) (V)

4.5

Vout (min) (V)

0.8

Features

Enable, Forced PWM, Frequency synchronization, Power good

Control mode

current mode

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.000515

Duty cycle (max) (%)

100

TI functional safety category

Functional Safety-Capable

WQFN (RTE)

16

9 mm² (3 mm × 3 mm)

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 3-A loads
200-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
–40°C to +150°C operating junction temperature range
Thermally enhanced 3-mm × 3-mm 16-pin WQFN
Pin compatible to TPS54418
Newer product available: TPS62813-Q1, 6-V step-down converter in 2-mm x 3-mm QFN package with wettable flanks

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 3-A loads
200-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
–40°C to +150°C operating junction temperature range
Thermally enhanced 3-mm × 3-mm 16-pin WQFN
Pin compatible to TPS54418
Newer product available: TPS62813-Q1, 6-V step-down converter in 2-mm x 3-mm QFN package with wettable flanks

The TPS54388C-Q1 device is a full-featured 6-V, 3-A, synchronous step-down current-mode converter with two integrated MOSFETs.

The TPS54388C-Q1 device 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 QFN package.

The TPS54388C-Q1 device provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (V_ref) over temperature.

The integrated 12-mΩ MOSFETs and 515-µA typical supply current maximize efficiency. Entering shutdown mode using the enable pin reduces shutdown supply current to 5.5 µA, typical.

The internal undervoltage lockout setting is at 2.45 V, but programming the threshold with a resistor network on the enable pin can increase the setting. The slow-start pin sets the output-voltage start-up ramp. An open-drain power-good signal indicates when the output is within 93% to 107% of its nominal voltage.

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

The TPS54388C-Q1 device is a full-featured 6-V, 3-A, synchronous step-down current-mode converter with two integrated MOSFETs.

The TPS54388C-Q1 device 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 QFN package.

The TPS54388C-Q1 device provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (V_ref) over temperature.

The integrated 12-mΩ MOSFETs and 515-µA typical supply current maximize efficiency. Entering shutdown mode using the enable pin reduces shutdown supply current to 5.5 µA, typical.

The internal undervoltage lockout setting is at 2.45 V, but programming the threshold with a resistor network on the enable pin can increase the setting. The slow-start pin sets the output-voltage start-up ramp. An open-drain power-good signal indicates when the output is within 93% to 107% of its nominal voltage.

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

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Technische Dokumentation

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Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Datenblatt	TPS54388C-Q1 Automotive 2.95-V to 6-V, 3-A , 2-MHz Synchronous Buck Converter datasheet (Rev. B)	PDF \| HTML	24.06.2021
	Auswahlhilfe	Buck Converter Quick Reference Guide (Rev. B)		08.04.2021
	Informationen zur funktionalen Sicherheit	TPS54388C-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A)	PDF \| HTML	30.11.2020
	Technischer Artikel	Minimize the impact of the MLCC shortage on your power application	PDF \| HTML	29.03.2019
	Technischer Artikel	How to power next-generation ADAS camera modules	PDF \| HTML	11.09.2018
	Technischer Artikel	Use a low-quiescent-current switcher for high-voltage conversion	PDF \| HTML	28.08.2018
	Technischer Artikel	Let’s break it down: how buck converters make your power supply more flexible	PDF \| HTML	13.12.2017
	Anwendungshinweis	TPS57112-Q1 High Frequency (2.35 MHz) Operation		31.05.2016
	Anwendungshinweis	Enable Functionality and Adjusting Under Voltage Lockout for TPS57112-Q1 Device		05.05.2016
	Anwendungshinweis	Interfacing TPS57xxx-Q1 and TPS65320-Q1 Family Devices With Low Impendence Exter		08.12.2015

Design und Entwicklung

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Evaluierungsplatine

TPS54388EVM — TPS54388EVM: 2,95 V–6 V-Eingang, 3 A, 2 MHz, Synchron-Abwärts-SWIFTT-DC/DC-Wandler – Evaluierungsmod

The TPS54388-Q1 DC/DC converter is designed to provide up to a 3-A output from an input voltage source of 2.95 V to 6 V. This evaluation module is designed to demonstrate the small printed-circuit-board (PCB) areas that may be achieved when designing with the TPS54388-Q1 regulator. The switching (...)

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