Inicio Gestión de la energía Controladores CA/CC y CC/CC (FET externo)
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Gestión de la energía
Controladores CA/CC y CC/CC (FET externo)

TPS51219

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Controlador reductor síncrono de 3 V a 28 V con retroalimentación de tensión diferencial

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TPS51219

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Detalles del producto

Vin (min) (V) 3 Vin (max) (V) 28 Iout (max) (A) 20 Operating temperature range (°C) -40 to 85 Control mode D-CAP, D-CAP2 Rating Catalog Vout (min) (V) 0.5 Vout (max) (V) 2 Features Enable, Light Load Efficiency, Power good, Pre-Bias Start-Up, Synchronous Rectification Iq (typ) (µA) 560 Duty cycle (max) (%) 90 Number of phases 1
Vin (min) (V) 3 Vin (max) (V) 28 Iout (max) (A) 20 Operating temperature range (°C) -40 to 85 Control mode D-CAP, D-CAP2 Rating Catalog Vout (min) (V) 0.5 Vout (max) (V) 2 Features Enable, Light Load Efficiency, Power good, Pre-Bias Start-Up, Synchronous Rectification Iq (typ) (µA) 560 Duty cycle (max) (%) 90 Number of phases 1
WQFN (RTE) 16 9 mm² 3 x 3
  • Differential Voltage Feedback
  • DC Compensation for Accurate Regulation
  • Wide Input Voltage Range: 3 V to 28 V
  • Output Voltage Range: 0.5 V to 2.0 V with
    Fixed Options of 1.05 V and 1.00 V
  • Wide Output Load Range: 0 A to 20 A+
  • Adaptive On-Time Modulation with Selectable Control Architecture and Frequency
    • D-CAP Mode at 300 kHz/400 kHz for Fast Transient Response
    • D-CAP2 Mode at 500 kHz/670 kHz for Ceramic Output Capacitor
  • 4700 ppm/°C, Low-Side RDS(on) Current Sensing
  • RSENSE Accurate Current Sense Option
  • Internal, 1-ms Voltage Servo Softstart
  • Built-In Output Discharge
  • Power Good Output
  • Integrated Boost Switch
  • Built-In OVP/UVP/OCP
  • Thermal Shutdown (Non-latched)
  • 3 mm × 3 mm, 16-Pin, QFN (RTE) Package
  • Differential Voltage Feedback
  • DC Compensation for Accurate Regulation
  • Wide Input Voltage Range: 3 V to 28 V
  • Output Voltage Range: 0.5 V to 2.0 V with
    Fixed Options of 1.05 V and 1.00 V
  • Wide Output Load Range: 0 A to 20 A+
  • Adaptive On-Time Modulation with Selectable Control Architecture and Frequency
    • D-CAP Mode at 300 kHz/400 kHz for Fast Transient Response
    • D-CAP2 Mode at 500 kHz/670 kHz for Ceramic Output Capacitor
  • 4700 ppm/°C, Low-Side RDS(on) Current Sensing
  • RSENSE Accurate Current Sense Option
  • Internal, 1-ms Voltage Servo Softstart
  • Built-In Output Discharge
  • Power Good Output
  • Integrated Boost Switch
  • Built-In OVP/UVP/OCP
  • Thermal Shutdown (Non-latched)
  • 3 mm × 3 mm, 16-Pin, QFN (RTE) Package

The TPS51219 is a small-sized single buck controller with adaptive on-time control. It provides a choice of control modes (D-CAP™ or D-CAP2™) to meet a wide range of system requirements. It is designed for tight DC regulation requirements such as the VCCIO application for Intel notebooks. The performance and flexibility of the TPS51219 makes it suitable for low output voltage, high current, PC system power rails and similar point-of-load (POL) power supplies. Differential voltage feedback and the voltage compensation function combine to provide high precision power to load devices.

A small package, fixed voltage options and minimal external component count saves cost and space, while a dedicated EN pin and pre-set frequency selections minimize design effort. The skip-mode at light load condition, strong gate drivers, and low-side FET RDS(on) current sensing provides high efficiency operation over a broad load range. The external resistor current sense option enables accurate current sensing. The conversion input voltage (the high-side FET drain voltage) ranges from 3 V to 28 V and output voltage ranges from 0.5 V to 2.0 V. The device requires an external 5-V supply.

The TPS51219 is available in a 16-pin, QFN package and is specified for ambient temperature from -40°C to 85°C.

The TPS51219 is a small-sized single buck controller with adaptive on-time control. It provides a choice of control modes (D-CAP™ or D-CAP2™) to meet a wide range of system requirements. It is designed for tight DC regulation requirements such as the VCCIO application for Intel notebooks. The performance and flexibility of the TPS51219 makes it suitable for low output voltage, high current, PC system power rails and similar point-of-load (POL) power supplies. Differential voltage feedback and the voltage compensation function combine to provide high precision power to load devices.

A small package, fixed voltage options and minimal external component count saves cost and space, while a dedicated EN pin and pre-set frequency selections minimize design effort. The skip-mode at light load condition, strong gate drivers, and low-side FET RDS(on) current sensing provides high efficiency operation over a broad load range. The external resistor current sense option enables accurate current sensing. The conversion input voltage (the high-side FET drain voltage) ranges from 3 V to 28 V and output voltage ranges from 0.5 V to 2.0 V. The device requires an external 5-V supply.

The TPS51219 is available in a 16-pin, QFN package and is specified for ambient temperature from -40°C to 85°C.
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Documentación técnica

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* Data sheet High Performance, Single Synchronous Step-Down Controller with Differential Volt datasheet (Rev. B) 01 oct 2011
User guide TPS51219 Buck Controller Evaluation Module User's Guide (Rev. A) PDF | HTML 18 feb 2022

Diseño y desarrollo

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Modelo de simulación

TPS51219 IBIS Model

SLUM319.ZIP (10 KB) - IBIS Model
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Modelo de simulación

TPS51219 TINA-TI Average DCAP Reference Design

SLUM261.TSC (66 KB) - TINA-TI Reference Design
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Modelo de simulación

TPS51219 TINA-TI Average DCAP Spice Model

SLUM262.ZIP (5 KB) - TINA-TI Spice Model
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Modelo de simulación

TPS51219 TINA-TI Average DCAP2 Reference Design

SLUM269.TSC (75 KB) - TINA-TI Reference Design
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Modelo de simulación

TPS51219 TINA-TI Average DCAP2 Spice Model

SLUM270.ZIP (7 KB) - TINA-TI Spice Model
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Modelo de simulación

TPS51219 TINA-TI Transient Reference Design

SLUM263.TSC (218 KB) - TINA-TI Reference Design
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Modelo de simulación

TPS51219 TINA-TI Transient Spice Model

SLUM264.ZIP (62 KB) - TINA-TI Spice Model
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Modelo de simulación

TPS51219 Unencrypted PSpice Average Model Package (Rev. A)

SLUM232A.ZIP (153 KB) - PSpice Model
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Modelo de simulación

TPS51219 Unencrypted PSpice Transient Model Package (Rev. A)

SLUM233A.ZIP (57 KB) - PSpice Model
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Diseños de referencia

TIDA-00020 — Diseño de referencia de administración de potencia Intel IMVP7 Core Mobile de 2.ª generación (Core i

The Intel® Core i7 power management design is a reference design for the Intel® IMVP-7 Serial VID (SVID) power system. This design features an IMVP-7 3-phase CPU supply, a single-phase GPU Vcore supply, a 1.05-VCC IO supply, and a DDR3L/DDR4 memory rail. To greatly improve power (...)
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