TPS53321

Name: TPS53321
Brand: TI
SKU: TPS53321
Price: 0.924 USD

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Abwärtswandler, 2,9 V bis 6V, 5 A mit integrierten MOSFETs

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Datenblatt

document-pdfAcrobat TPS53321 5-A Step-Down Regulator With Integrated Switcher datasheet (Rev. A) (Englisch) PDF | HTML

TPS53321

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Topology

Buck

Type

Converter

Iout (max) (A)

5

Vin (min) (V)

2.9

Vin (max) (V)

6

Switching frequency (min) (kHz)

1100

Switching frequency (max) (kHz)

1100

Features

Enable, Frequency synchronization, Light load efficiency, Output discharge, Power good, Pre-Bias Start-Up, Synchronous Rectification

Control mode

Voltage mode

Vout (min) (V)

0.6

Vout (max) (V)

4.2

Iq (typ) (µA)

320

Duty cycle (max) (%)

99

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Topology

Buck

Type

Converter

Iout (max) (A)

5

Vin (min) (V)

2.9

Vin (max) (V)

6

Switching frequency (min) (kHz)

1100

Switching frequency (max) (kHz)

1100

Features

Enable, Frequency synchronization, Light load efficiency, Output discharge, Power good, Pre-Bias Start-Up, Synchronous Rectification

Control mode

Voltage mode

Vout (min) (V)

0.6

Vout (max) (V)

4.2

Iq (typ) (µA)

320

Duty cycle (max) (%)

99

VQFN (RGT)

16

9 mm² 3 x 3

96% Maximum Efficiency
Continuous 5-A Output Current
Supports All MLCC Output Capacitor
SmoothPWM™ Auto-Skip Eco-Mode™ for Light-Load Efficiency
Optimized Efficiency at Light and Heavy Loads
Voltage Mode Control
Supports Master-Slave Interleaved Operation
Synchronization up to ±20% of Nominal Frequency
Conversion Voltage Range Between 2.9 V and 6 V
Soft-Stop Output Discharge During Disable
Adjustable Output Voltage Ranging Between 0.6 V and 0.84 V × V_IN
Overcurrent, Overvoltage, and Overtemperature Protection
Small 3 mm × 3 mm, 16-Pin QFN Package
Open-Drain Power Good Indication
Internal Boot Strap Switch
Low R_DS(on), 24 mΩ With 3.3-V Input and 19-mΩ With 5-V Input
Supports Prebias Start-Up

96% Maximum Efficiency
Continuous 5-A Output Current
Supports All MLCC Output Capacitor
SmoothPWM™ Auto-Skip Eco-Mode™ for Light-Load Efficiency
Optimized Efficiency at Light and Heavy Loads
Voltage Mode Control
Supports Master-Slave Interleaved Operation
Synchronization up to ±20% of Nominal Frequency
Conversion Voltage Range Between 2.9 V and 6 V
Soft-Stop Output Discharge During Disable
Adjustable Output Voltage Ranging Between 0.6 V and 0.84 V × V_IN
Overcurrent, Overvoltage, and Overtemperature Protection
Small 3 mm × 3 mm, 16-Pin QFN Package
Open-Drain Power Good Indication
Internal Boot Strap Switch
Low R_DS(on), 24 mΩ With 3.3-V Input and 19-mΩ With 5-V Input
Supports Prebias Start-Up

The TPS53321 device provides a fully integrated 3-V to 5-V V_IN integrated synchronous FET converter solution with 16 total components in 200 mm² of PCB area. Due to the low ON-resistance and TI’s Proprietary SmoothPWM™ skip mode of operation, it enables 96% peak efficiency and over 90% efficiency at loads as light as 100 mA. It requires only two 22-µF ceramic output capacitors for a power dense 5-A solution.

The TPS53321 features a 1.1-MHz switching frequency, skip mode operation support, prebias start-up, internal soft start, output soft discharge, internal VBST switch, power good, EN/input UVLO, overcurrent, overvoltage, undervoltage, and overtemperature protections, and all ceramic output capacitor support. It supports supply voltage from 2.9 V to 3.5 V and conversion voltage from 2.9 V to 6 V. The output voltage is adjustable from 0.6 V to 0.84 V × V_IN.

The TPS53321 is available in the 3 mm × 3 mm 16-pin QFN package (Green RoHs compliant and Pb free) and operates between –40°C and 85°C.

The TPS53321 device provides a fully integrated 3-V to 5-V V_IN integrated synchronous FET converter solution with 16 total components in 200 mm² of PCB area. Due to the low ON-resistance and TI’s Proprietary SmoothPWM™ skip mode of operation, it enables 96% peak efficiency and over 90% efficiency at loads as light as 100 mA. It requires only two 22-µF ceramic output capacitors for a power dense 5-A solution.

The TPS53321 features a 1.1-MHz switching frequency, skip mode operation support, prebias start-up, internal soft start, output soft discharge, internal VBST switch, power good, EN/input UVLO, overcurrent, overvoltage, undervoltage, and overtemperature protections, and all ceramic output capacitor support. It supports supply voltage from 2.9 V to 3.5 V and conversion voltage from 2.9 V to 6 V. The output voltage is adjustable from 0.6 V to 0.84 V × V_IN.

The TPS53321 is available in the 3 mm × 3 mm 16-pin QFN package (Green RoHs compliant and Pb free) and operates between –40°C and 85°C.

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Technische Dokumentation

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Alle anzeigen 2

	Typ	Titel		Datum
*	Data sheet	TPS53321 5-A Step-Down Regulator With Integrated Switcher datasheet (Rev. A)	PDF \| HTML	30 Nov 2016
	Application note	Unified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev		25 Jan 2017

Design und Entwicklung

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Gehäuse	Pins	CAD-Symbole, Footprints und 3D-Modelle
VQFN (RGT)	16	Ultra Librarian

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TPS53321

Abwärtswandler, 2,9 V bis 6V, 5 A mit integrierten MOSFETs

TPS53321

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Technische Dokumentation

Design und Entwicklung

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