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TPS543B25E

Name: TPS543B25E
Brand: TI
SKU: TPS543B25E
Price: 9 USD

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Synchroner 25-A-SWIFT™-Abwärtswandler mit 4−18 V Eingangsspannung und erweitertem Temperaturbereich

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Datenblatt

document-pdfAcrobat TPS543B25E 4V to 18V Input, 25 A, Synchronous, SWIFT Step-Down Converter With Internally Compensated, Advanced Current Mode Control datasheet (Englisch) PDF | HTML

TPS543B25E

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Rating

Catalog

Topology

Buck, Synchronous Buck

Iout (max) (A)

25

Vin (max) (V)

18

Vin (min) (V)

4

Vout (max) (V)

7

Vout (min) (V)

0.5

Features

Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, Overcurrent protection, Power good, Prebias startup, Soft-start adjustable, Synchronous rectification, UVLO adjustable

Control mode

ACM/AECM

Operating temperature range (°C)

-55 to 150

Iq (typ) (A)

0.0012

Duty cycle (max) (%)

94

Rating

Catalog

Topology

Buck, Synchronous Buck

Iout (max) (A)

25

Vin (max) (V)

18

Vin (min) (V)

4

Vout (max) (V)

7

Vout (min) (V)

0.5

Features

Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, Overcurrent protection, Power good, Prebias startup, Soft-start adjustable, Synchronous rectification, UVLO adjustable

Control mode

ACM/AECM

Operating temperature range (°C)

-55 to 150

Iq (typ) (A)

0.0012

Duty cycle (max) (%)

94

WQFN-FCRLF (RYS)

17

11.25 mm² 4.5 x 2.5

Fixed-frequency, internally-compensated, advanced current mode (ACM) control
Integrated 6.5mΩ and 2mΩ MOSFETs
4V to 18V input voltage range
0.5V to 7V output voltage range
True differential remote sense amplifier (RSA)
Three selectable PWM ramp options to optimize the control loop performance
Five selectable switching frequencies: 500kHz, 750kHz, 1MHz, 1.5MHz, and 2.2MHz
Synchronizable to an external clock
0.5V, ±0.5% voltage reference accuracy over full temperature range
1ms, 2ms, 4ms, and 8ms selectable soft-start times
Monotonic start-up into prebiased outputs
Selectable current limits to support 25A and 20A operation
Enable with adjustable input undervoltage lockout
Power-good output monitor
Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
–55°C to 150°C operating junction temperature
2.5mm × 4.5mm, 17-pin WQFN-FCRLF package with 0.5mm pitch
Lead-free (RoHS compliant)
Pin compatible with the 20A - TPS543B22, 16A - TPS543A26, and 12A - TPS543A22
SIMPLIS models available
Create a custom design using the TPS543B25E with the WEBENCH Power Designer

Fixed-frequency, internally-compensated, advanced current mode (ACM) control
Integrated 6.5mΩ and 2mΩ MOSFETs
4V to 18V input voltage range
0.5V to 7V output voltage range
True differential remote sense amplifier (RSA)
Three selectable PWM ramp options to optimize the control loop performance
Five selectable switching frequencies: 500kHz, 750kHz, 1MHz, 1.5MHz, and 2.2MHz
Synchronizable to an external clock
0.5V, ±0.5% voltage reference accuracy over full temperature range
1ms, 2ms, 4ms, and 8ms selectable soft-start times
Monotonic start-up into prebiased outputs
Selectable current limits to support 25A and 20A operation
Enable with adjustable input undervoltage lockout
Power-good output monitor
Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
–55°C to 150°C operating junction temperature
2.5mm × 4.5mm, 17-pin WQFN-FCRLF package with 0.5mm pitch
Lead-free (RoHS compliant)
Pin compatible with the 20A - TPS543B22, 16A - TPS543A26, and 12A - TPS543A22
SIMPLIS models available
Create a custom design using the TPS543B25E with the WEBENCH Power Designer

The TPS543B25E is a high-efficiency, 18V, 25A, synchronous buck converter. The device employs an internally compensated, fixed-frequency, ACM control architecture, which while always operating under forced continuous conduction mode (FCCM), generates output voltages from 0.5V to 7V. The device is capable of providing high efficiency while operating at a switching frequency up to 2.2MHz, making the device an excellent choice for designs requiring a small design size. The fixed frequency controller can operate from 500kHz to 2.2MHz and can be synchronized to an external clock using the SYNC pin. Additional features include a high accuracy voltage reference, two-wire remote sense, selectable soft-start times, monotonic start-up into prebiased outputs, selectable current limits, adjustable undervoltage lockout (UVLO) through the EN pin, and a full suite of fault protections.

The TPS543B25E is available in a small, 2.5mm × 4.5mm, HotRod™ WQFN-FCRLF package.

The TPS543B25E is a high-efficiency, 18V, 25A, synchronous buck converter. The device employs an internally compensated, fixed-frequency, ACM control architecture, which while always operating under forced continuous conduction mode (FCCM), generates output voltages from 0.5V to 7V. The device is capable of providing high efficiency while operating at a switching frequency up to 2.2MHz, making the device an excellent choice for designs requiring a small design size. The fixed frequency controller can operate from 500kHz to 2.2MHz and can be synchronized to an external clock using the SYNC pin. Additional features include a high accuracy voltage reference, two-wire remote sense, selectable soft-start times, monotonic start-up into prebiased outputs, selectable current limits, adjustable undervoltage lockout (UVLO) through the EN pin, and a full suite of fault protections.

The TPS543B25E is available in a small, 2.5mm × 4.5mm, HotRod™ WQFN-FCRLF package.

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Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Data sheet	TPS543B25E 4V to 18V Input, 25 A, Synchronous, SWIFT Step-Down Converter With Internally Compensated, Advanced Current Mode Control datasheet	PDF \| HTML	30 Jul 2025

Design und Entwicklung

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Evaluierungsplatine

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Simulationsmodell

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SLVMDY4A.ZIP (928 KB) - SIMPLIS Model

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Gehäuse	Pins	CAD-Symbole, Footprints und 3D-Modelle
WQFN-FCRLF (RYS)	17	Ultra Librarian

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TPS543B25E

Synchroner 25-A-SWIFT™-Abwärtswandler mit 4−18 V Eingangsspannung und erweitertem Temperaturbereich

TPS543B25E

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