TPS51219 Series
3-V to 28-V, synchronous buck controller with differential voltage feedback
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Voltage - Supply (Vcc/Vdd)▲▼ | Voltage - Supply (Vcc/Vdd)▲▼ | Mounting Type | Output Phases▲▼ | Clock Sync▲▼ | Synchronous Rectifier▲▼ | Topology | Output Type | Operating Temperature▲▼ | Operating Temperature▲▼ | Function | Number of Outputs▲▼ | Output Configuration | Control Features | Package / Case | Supplier Device Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS51219RTERBuck Regulator Positive Output Step-Down DC-DC Controller IC 16-WQFN (3x3) | 3 V | 28 V | Surface Mount | 1 ul | Buck | Transistor Driver | 85 °C | -40 °C | Step-Down | 1 ul | Positive | Enable, Power Good | 16-WFQFN Exposed Pad | 16-WQFN (3x3) |
Key Features
• Differential Voltage FeedbackDC Compensation for Accurate RegulationWide Input Voltage Range: 3 V to 28 VOutput Voltage Range: 0.5 V to 2.0 V withFixed Options of 1.05 V and 1.00 VWide Output Load Range: 0 A to 20 A+Adaptive On-Time Modulation with Selectable Control Architecture and FrequencyD-CAP Mode at 300 kHz/400 kHz for Fast Transient ResponseD-CAP2 Mode at 500 kHz/670 kHz for Ceramic Output Capacitor4700 ppm/°C, Low-Side RDS(on)Current SensingRSENSEAccurate Current Sense OptionInternal, 1-ms Voltage Servo SoftstartBuilt-In Output DischargePower Good OutputIntegrated Boost SwitchBuilt-In OVP/UVP/OCPThermal Shutdown (Non-latched)3 mm × 3 mm, 16-Pin, QFN (RTE) PackageDifferential Voltage FeedbackDC Compensation for Accurate RegulationWide Input Voltage Range: 3 V to 28 VOutput Voltage Range: 0.5 V to 2.0 V withFixed Options of 1.05 V and 1.00 VWide Output Load Range: 0 A to 20 A+Adaptive On-Time Modulation with Selectable Control Architecture and FrequencyD-CAP Mode at 300 kHz/400 kHz for Fast Transient ResponseD-CAP2 Mode at 500 kHz/670 kHz for Ceramic Output Capacitor4700 ppm/°C, Low-Side RDS(on)Current SensingRSENSEAccurate Current Sense OptionInternal, 1-ms Voltage Servo SoftstartBuilt-In Output DischargePower Good OutputIntegrated Boost SwitchBuilt-In OVP/UVP/OCPThermal Shutdown (Non-latched)3 mm × 3 mm, 16-Pin, QFN (RTE) Package
Description
AI
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.