TPS53511

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Regulador reductor de 1.5 A con MOSFET integrados

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Hoja de datos

document-pdfAcrobat 4.5-V to 18-V Input, 1.5-A Step-Down Regulator with Integrated Switcher datasheet (Rev. B) (Inglés) PDF | HTML

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TPS53511

ACTIVO

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Detalles del producto

Rating

Catalog

Topology

Buck

Iout (max) (A)

1.5

Vin (max) (V)

18

Vin (min) (V)

4.5

Vout (max) (V)

5

Vout (min) (V)

0.75

Features

Enable, Light-load efficiency, Power good, Prebias startup, Synchronous rectification

Control mode

D-CAP2

Operating temperature range (°C)

-40 to 85

Iq (typ) (A)

0.0013

Duty cycle (max) (%)

95

Rating

Catalog

Topology

Buck

Iout (max) (A)

1.5

Vin (max) (V)

18

Vin (min) (V)

4.5

Vout (max) (V)

5

Vout (min) (V)

0.75

Features

Enable, Light-load efficiency, Power good, Prebias startup, Synchronous rectification

Control mode

D-CAP2

Operating temperature range (°C)

-40 to 85

Iq (typ) (A)

0.0013

Duty cycle (max) (%)

95

VQFN (RGT)

16

9 mm² (3 mm × 3 mm)

Continuous 1.5-A output current
4.5-V to 18-V supply voltage range
2-V to 18-V conversion voltage range
DCAP2™ mode control enables fast transient response
Low output ripple and support all MLCC output capacitor
Skip mode for light load control
Highly efficient integrated FETs optimized for lower duty cycle applications
High efficiency, less than 10-µA supply current at shutdown
Adjustable soft-start time
Support pre-biased soft start
700-kHz switching frequency
Cycle-by-cycle overcurrent limit
Open-drain power-good indication
Internal bootstrap switch
Small 3-mm × 3-mm, 16-pin QFN (RGT) package

Continuous 1.5-A output current
4.5-V to 18-V supply voltage range
2-V to 18-V conversion voltage range
DCAP2™ mode control enables fast transient response
Low output ripple and support all MLCC output capacitor
Skip mode for light load control
Highly efficient integrated FETs optimized for lower duty cycle applications
High efficiency, less than 10-µA supply current at shutdown
Adjustable soft-start time
Support pre-biased soft start
700-kHz switching frequency
Cycle-by-cycle overcurrent limit
Open-drain power-good indication
Internal bootstrap switch
Small 3-mm × 3-mm, 16-pin QFN (RGT) package

The TPS53511 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The device is suitable for points-of-load (POL) in computing power systems, and provides a cost-effective, low component count, low standby current solution. The main control loop for the TPS53511 uses the D-CAP2™ mode control to provide a fast transient response with no external components. The adaptive on-time control supports seamless operation between PWM mode during heavy load conditions and reduced frequency operation during light-load conditions for high efficiency.

The TPS53511 includes a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V supply input, and from 2-V to 18-V input power supply voltage. The device features an adjustable slow-start time and a power-good function. It also supports pre-biased soft start. The TPS53511 is available in a 16-pin QFN package, and is designed to operate from –40°C to 85°C.

The TPS53511 is an adaptive on-time D-CAP2™ mode synchronous buck converter. The device is suitable for points-of-load (POL) in computing power systems, and provides a cost-effective, low component count, low standby current solution. The main control loop for the TPS53511 uses the D-CAP2™ mode control to provide a fast transient response with no external components. The adaptive on-time control supports seamless operation between PWM mode during heavy load conditions and reduced frequency operation during light-load conditions for high efficiency.

The TPS53511 includes a proprietary circuit that enables the device to adapt to both low equivalent series resistance (ESR) output capacitors, such as POSCAP or SP-CAP, and ultra-low ESR ceramic capacitors. The device operates from 4.5-V to 18-V supply input, and from 2-V to 18-V input power supply voltage. The device features an adjustable slow-start time and a power-good function. It also supports pre-biased soft start. The TPS53511 is available in a 16-pin QFN package, and is designed to operate from –40°C to 85°C.

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Documentación técnica

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Documentación principal	Tipo	Título	Opciones de formato	Fecha
*	Hoja de datos	4.5-V to 18-V Input, 1.5-A Step-Down Regulator with Integrated Switcher datasheet (Rev. B)	PDF \| HTML	17/08/2021
	Artículo técnico	How to latch off a power converter that has a hiccup fault response	PDF \| HTML	20/12/2023
	Nota sobre la aplicación	Unified Ground Connection Recommendation on TPS53K- Integrated FET-Converter Dev		25/01/2017

Diseño y desarrollo

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