TPS543B22

Name: TPS543B22
Brand: TI
SKU: TPS543B22
Price: 1.7 USD

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Synchroner SWIFT-™Abwärtswandler, 4 bis 18 V Eingangsspannung, 20 A, erweiterter Strommodus

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Datenblatt

document-pdfAcrobat TPS543B22 4V to 18V Input, 20 A, Synchronous, SWIFT Step-Down Converter With Internally Compensated, Advanced Current Mode Control datasheet (Rev. B) (Englisch) PDF | HTML

TPS543B22

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Rating

Catalog

Operating temperature range (°C)

-40 to 150

Topology

Buck

Type

Converter

Iout (max) (A)

20

Vin (min) (V)

4

Vin (max) (V)

18

Switching frequency (min) (kHz)

500

Switching frequency (max) (kHz)

2200

Features

Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable

Control mode

ACM/AECM

Vout (min) (V)

0.5

Vout (max) (V)

7

Iq (typ) (µA)

1200

Duty cycle (max) (%)

94

Rating

Catalog

Operating temperature range (°C)

-40 to 150

Topology

Buck

Type

Converter

Iout (max) (A)

20

Vin (min) (V)

4

Vin (max) (V)

18

Switching frequency (min) (kHz)

500

Switching frequency (max) (kHz)

2200

Features

Adjustable current limit, Differential Remote Sense, Enable, Forced PWM, Frequency synchronization, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification, UVLO adjustable

Control mode

ACM/AECM

Vout (min) (V)

0.5

Vout (max) (V)

7

Iq (typ) (µA)

1200

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 20A and 16A operation
Enable with adjustable input undervoltage lockout
Power-good output monitor
Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
–40°C to 150°C operating junction temperature
2.5mm × 4.5mm, 17-pin WQFN-HR package with 0.5mm pitch
Lead-free (RoHS compliant)
Pin compatible with the TPS543A26 and TPS543A22
Available in thermally enhanced package TPS543B25T (drop-in compatible)
SIMPLIS models available
Create a custom design using the TPS543B22 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 20A and 16A operation
Enable with adjustable input undervoltage lockout
Power-good output monitor
Output overvoltage, output undervoltage, input undervoltage, overcurrent, and overtemperature protection
–40°C to 150°C operating junction temperature
2.5mm × 4.5mm, 17-pin WQFN-HR package with 0.5mm pitch
Lead-free (RoHS compliant)
Pin compatible with the TPS543A26 and TPS543A22
Available in thermally enhanced package TPS543B25T (drop-in compatible)
SIMPLIS models available
Create a custom design using the TPS543B22 with the WEBENCH® Power Designer

The TPS543B22 is a high-efficiency 18V, 20A synchronous buck converter employing an internally compensated, fixed-frequency advanced current mode (ACM) control architecture, which while always operating under 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 solution 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 UVLO through the EN pin, and a full suite of fault protections.

The TPS543B22 is available in a small 2.5mm × 4.5mm HotRod™ WQFN-FCRLF package.

The TPS543B22 is a high-efficiency 18V, 20A synchronous buck converter employing an internally compensated, fixed-frequency advanced current mode (ACM) control architecture, which while always operating under 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 solution 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 UVLO through the EN pin, and a full suite of fault protections.

The TPS543B22 is available in a small 2.5mm × 4.5mm HotRod™ WQFN-FCRLF package.

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Technische Dokumentation

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Alle anzeigen 3

	Typ	Titel		Datum
*	Data sheet	TPS543B22 4V to 18V Input, 20 A, Synchronous, SWIFT Step-Down Converter With Internally Compensated, Advanced Current Mode Control datasheet (Rev. B)	PDF \| HTML	15 Feb 2024
	EVM User's guide	TPS543B22EVM SWIFT™ Step-Down Converter Evaluation Module User's Guide (Rev. B)	PDF \| HTML	06 Sep 2023
	Analog Design Journal	Using a second stage filter to reduce voltage ripple	PDF \| HTML	10 Jan 2023

Design und Entwicklung

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Evaluierungsplatine

TPS543B22EVM — Evaluierungsmodul für synchronen TPS543B22 Abwärtswandler

Das TPS543B22-Evaluierungsmodul (EVM) ist ein synchroner Abwärtswandler, der sowohl Leistungs-MOSFETs mit niedrigem Drain-to-Source-Wiederstand integriert, um die Lösungsgröße zu minimieren und einen hohen Wirkungsgrad bei Volllast bietet. Das TPS543B22EVM verwendet eine erweiterte (...)

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