TPS65295

Name: TPS65295
Brand: TI
SKU: TPS65295
Price: 1.472 USD

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Solución completa de alimentación de memoria DDR4 con entrada de 4.5 V a 18 V

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Hoja de datos

document-pdfAcrobat TPS65295 complete DDR4 memory power solution datasheet (Inglés) PDF | HTML

TPS65295

ACTIVO

Hoja de datos

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Detalles del producto

DDR memory type

DDR4

Control mode

D-CAP3

Iout VDDQ (max) (A)

8

Iout VTT (max) (A)

1

Iq (typ) (mA)

0.15

Output

VDDQ, VREF, VTT

Vin (min) (V)

4.5

Vin (max) (V)

18

Features

Complete Solution

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Regulator type

Step-Down Converter

Vin bias (max) (V)

16

Vin bias (min) (V)

4.5

Vout VTT (min) (V)

0.6

DDR memory type

DDR4

Control mode

D-CAP3

Iout VDDQ (max) (A)

8

Iout VTT (max) (A)

1

Iq (typ) (mA)

0.15

Output

VDDQ, VREF, VTT

Vin (min) (V)

4.5

Vin (max) (V)

18

Features

Complete Solution

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Regulator type

Step-Down Converter

Vin bias (max) (V)

16

Vin bias (min) (V)

4.5

Vout VTT (min) (V)

0.6

VQFN-HR (RJE)

18

9 mm² 3 x 3

Synchronous buck converter (VDDQ)
- Input voltage range: 4.5 V to 18 V
- Output voltage fixed at 1.2 V
- D-CAP3™ mode control for fast transient response
- Continual output current: 8 A
- Advanced Eco-mode™ pulse skip
- Integrated 22-mΩ and 8.6-mΩ R_DS(on) internal power switch
- 600-kHz switching frequency
- Internal soft start: 1.6 ms
- Cycle-by-cycle overcurrent protection
- Latched output OV and UV protections
Synchronous buck converter (VPP)
- Input voltage range: 3 V to 5.5 V
- Output voltage fixed at 2.5 V
- D-CAP3™ mode control for fast transient response
- Continual output current: 1 A
- Advanced Eco-mode™ pulse skip
- Integrated 150-mΩ and 120-mΩ R_DS(on) internal power switch
- 580-kHz switching frequency
- Internal soft start: 1 ms
- Cycle-by-cycle overcurrent protection
- Latched output OV and UV protections
1-A LDO (VTT)
- 1-A continual sink and source current
- Requires only 10 µF of ceramic output capacitor
- Support high-z in S3
- ±30-mV VTT output accuracy (DC+AC)
Buffered reference (VTTREF)
- Buffered, low noise, ±10-mA capability
- 0.8% output accuracy
Low quiescent current: 150 µA
Power good indicator
Output discharge function
Power up and power down sequencing control
Non-latch for OT and UVLO protections
18-pin 3.0-mm × 3.0-mm HotRod™ VQFN package

Synchronous buck converter (VDDQ)
- Input voltage range: 4.5 V to 18 V
- Output voltage fixed at 1.2 V
- D-CAP3™ mode control for fast transient response
- Continual output current: 8 A
- Advanced Eco-mode™ pulse skip
- Integrated 22-mΩ and 8.6-mΩ R_DS(on) internal power switch
- 600-kHz switching frequency
- Internal soft start: 1.6 ms
- Cycle-by-cycle overcurrent protection
- Latched output OV and UV protections
Synchronous buck converter (VPP)
- Input voltage range: 3 V to 5.5 V
- Output voltage fixed at 2.5 V
- D-CAP3™ mode control for fast transient response
- Continual output current: 1 A
- Advanced Eco-mode™ pulse skip
- Integrated 150-mΩ and 120-mΩ R_DS(on) internal power switch
- 580-kHz switching frequency
- Internal soft start: 1 ms
- Cycle-by-cycle overcurrent protection
- Latched output OV and UV protections
1-A LDO (VTT)
- 1-A continual sink and source current
- Requires only 10 µF of ceramic output capacitor
- Support high-z in S3
- ±30-mV VTT output accuracy (DC+AC)
Buffered reference (VTTREF)
- Buffered, low noise, ±10-mA capability
- 0.8% output accuracy
Low quiescent current: 150 µA
Power good indicator
Output discharge function
Power up and power down sequencing control
Non-latch for OT and UVLO protections
18-pin 3.0-mm × 3.0-mm HotRod™ VQFN package

The TPS65295 device provides a complete power solution for DDR4 memory system with the lowest total cost and minimum space. It meets the JEDEC standard for DDR4 power-up and power-down sequence requirement. The TPS65295 integrates two synchronous buck converters (VPP and VDDQ) and a 1-A sink and source tracking LDO (VTT) and a buffered low noise reference (VTTREF). The TPS65295 employs D-CAP3™ mode coupled with 600-kHz switching frequency for ease-of-use, fast transient, and support for ceramic output capacitors without an external compensation circuit.

The VTTREF tracks ½ VDDQ within excellent 0.8% accuracy. The VTT, which provides both 1-A sink and source continual current capabilities, requires only 10-µF of ceramic output capacitor.

The TPS65295 provides rich functions as well as excellent power supply performance. It supports flexible power state control, placing VTT at high-Z in S3 and discharging VDDQ, VTT, and VTTREF in S4/S5 state. OVP, UVP, OCP, UVLO and thermal shutdown protections are also available. The part is available in a thermally enhanced 18-pin HotRod™ VQFN package and is designed to operate under the –40°C to 125°C junction temperature range.

The TPS65295 device provides a complete power solution for DDR4 memory system with the lowest total cost and minimum space. It meets the JEDEC standard for DDR4 power-up and power-down sequence requirement. The TPS65295 integrates two synchronous buck converters (VPP and VDDQ) and a 1-A sink and source tracking LDO (VTT) and a buffered low noise reference (VTTREF). The TPS65295 employs D-CAP3™ mode coupled with 600-kHz switching frequency for ease-of-use, fast transient, and support for ceramic output capacitors without an external compensation circuit.

The VTTREF tracks ½ VDDQ within excellent 0.8% accuracy. The VTT, which provides both 1-A sink and source continual current capabilities, requires only 10-µF of ceramic output capacitor.

The TPS65295 provides rich functions as well as excellent power supply performance. It supports flexible power state control, placing VTT at high-Z in S3 and discharging VDDQ, VTT, and VTTREF in S4/S5 state. OVP, UVP, OCP, UVLO and thermal shutdown protections are also available. The part is available in a thermally enhanced 18-pin HotRod™ VQFN package and is designed to operate under the –40°C to 125°C junction temperature range.

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Documentación técnica

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=Principal documentación para este producto seleccionada por TI

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	Tipo	Título		Fecha
*	Data sheet	TPS65295 complete DDR4 memory power solution datasheet	PDF \| HTML	22 feb 2019
	Application note	Non-Isolated Point-of-Load Solutions for Tiger Lake in PC Applications (Rev. B)	PDF \| HTML	29 abr 2021

Diseño y desarrollo

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Placa de evaluación

TPS65295EVM-079 — Módulo de evaluación de convertidor buck 8 A

El módulo de evaluación TPS65295 (EMV) se utiliza para evaluar el dispositivo TPS65295. El dispositivo TPS65295 proporciona una solución de potencia completa para el sistema de memoria DDR4 con el menor costo total y el espacio mínimo. Cumple con el estándar JEDEC para el requisito de secuencia de (...)

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Modelo de simulación

TPS65295 PSpice Transient Model

SLUM678.ZIP (114 KB) - PSpice Model

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Encapsulado	Pines	Símbolos CAD, huellas y modelos 3D
VQFN-HR (RJE)	18	Ultra Librarian

Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

TPS65295

Solución completa de alimentación de memoria DDR4 con entrada de 4.5 V a 18 V

TPS65295

Detalles del producto

Documentación técnica

Diseño y desarrollo

TPS65295EVM-079 — Módulo de evaluación de convertidor buck 8 A

TPS65295 PSpice Transient Model

Pedidos y calidad

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

Serie de videos

Videos