TPS51117

ACTIVO

Controlador reductor D-CAP síncrono de 1.8 V a 28 V con una ligera eficiencia de carga

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Hoja de datos

document-pdfAcrobat TPS51117 Single Synchronous Step-Down Controller datasheet (Rev. C) (Inglés) PDF | HTML

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TPS51117

ACTIVO

Hoja de datos

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Detalles del producto

Rating

Catalog

Topology

Buck

Iout (max) (A)

10

Vin (max) (V)

28

Vin (min) (V)

1.8

Vout (max) (V)

5.5

Vout (min) (V)

0.76

Control mode

D-CAP

Features

Enable, Power good, Prebias startup, Synchronous rectification

Duty cycle (max) (%)

95

Iq (typ) (A)

0.0004

Number of phases

1

Operating temperature range (°C)

-40 to 85

Rating

Catalog

Topology

Buck

Iout (max) (A)

10

Vin (max) (V)

28

Vin (min) (V)

1.8

Vout (max) (V)

5.5

Vout (min) (V)

0.76

Control mode

D-CAP

Features

Enable, Power good, Prebias startup, Synchronous rectification

Duty cycle (max) (%)

95

Iq (typ) (A)

0.0004

Number of phases

1

Operating temperature range (°C)

-40 to 85

VQFN (RGY)

14

12.25 mm² (3.5 mm × 3.5 mm)

TSSOP (PW)

14

32 mm² (5 mm × 6.4 mm)

High Efficiency, Low Power Consumption, 4.5-µA
Typical Shutdown Current
Fixed Frequency Emulated On-Time Control,
Adjustable from 100 kHz to 550 kHz
D-CAP™ Mode With 100-ns Load Step Response
< 1% Initial Reference Accuracy
Output Voltage Range: 0.75 V to 5.5 V
Wide Input Voltage Range: 1.8 V to 28 V
Selectable Auto-Skip/PWM-Only Operation
Temperature Compensated (4500 ppm/°C)
Low-Side R_DS(on) Overcurrent Sensing
Negative Overcurrent Limit
Integrated Boost Diode
Integrated OVP/UVP and Thermal Shutdown
Powergood Signal
Internal 1.2-ms Voltage Soft-Start
Integrated Output Discharge (Soft-Stop)
APPLICATIONS
- Notebook Computers
- I/O Supplies
- System Power Supplies

All other trademarks are the property of their respective owners

High Efficiency, Low Power Consumption, 4.5-µA
Typical Shutdown Current
Fixed Frequency Emulated On-Time Control,
Adjustable from 100 kHz to 550 kHz
D-CAP™ Mode With 100-ns Load Step Response
< 1% Initial Reference Accuracy
Output Voltage Range: 0.75 V to 5.5 V
Wide Input Voltage Range: 1.8 V to 28 V
Selectable Auto-Skip/PWM-Only Operation
Temperature Compensated (4500 ppm/°C)
Low-Side R_DS(on) Overcurrent Sensing
Negative Overcurrent Limit
Integrated Boost Diode
Integrated OVP/UVP and Thermal Shutdown
Powergood Signal
Internal 1.2-ms Voltage Soft-Start
Integrated Output Discharge (Soft-Stop)
APPLICATIONS
- Notebook Computers
- I/O Supplies
- System Power Supplies

All other trademarks are the property of their respective owners

The TPS51117 device is a cost-effective, synchronous buck controller for POL voltage regulation in notebook PC applications. The controller is dedicated for the operation of the Adaptive On-Time D-CAP mode. This mode provides ease-of-use, low external component count, and fast transient response. Auto-skip mode for high efficiency down to the milliampere load range, or PWM-only mode for low-noise operation is selectable.

The current-sensing scheme for positive overcurrent and negative overcurrent protection is loss-less low-side R_DS(on) sensing plus temperature compensation. The device receives a 5-V (4.5 V to 5.5 V) supply from another regulator such as the TPS51120 or TPS51020. The conversion input can be either VBAT or a 5-V rail, ranging from 1.8 V to 28 V, and the output voltage range is from 0.75 V to 5.5 V.

The TPS51117 is available in a 14-pin VQFN or a 14-pin TSSOP package and is specified from –40°C to 85°C.

The TPS51117 device is a cost-effective, synchronous buck controller for POL voltage regulation in notebook PC applications. The controller is dedicated for the operation of the Adaptive On-Time D-CAP mode. This mode provides ease-of-use, low external component count, and fast transient response. Auto-skip mode for high efficiency down to the milliampere load range, or PWM-only mode for low-noise operation is selectable.

The current-sensing scheme for positive overcurrent and negative overcurrent protection is loss-less low-side R_DS(on) sensing plus temperature compensation. The device receives a 5-V (4.5 V to 5.5 V) supply from another regulator such as the TPS51120 or TPS51020. The conversion input can be either VBAT or a 5-V rail, ranging from 1.8 V to 28 V, and the output voltage range is from 0.75 V to 5.5 V.

The TPS51117 is available in a 14-pin VQFN or a 14-pin TSSOP package and is specified from –40°C to 85°C.

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Documentación técnica

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Documentación principal	Tipo	Título	Opciones de formato	Descargar la versión más reciente en inglés	Fecha
*	Hoja de datos	TPS51117 Single Synchronous Step-Down Controller datasheet (Rev. C)	PDF \| HTML		15/05/2015
	Guía del usuario	TPS51117 Buck Controller Evaluation Module User's Guide (Rev. B)	PDF \| HTML		1/02/2022

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