TPS65286 Series
4.5V to 28V Input, 6A output synchronous buck converter with dual load switches
Manufacturer: Texas Instruments
Catalog(2 parts)
| Part | Fault Protection | Output Configuration | Mounting Type | Output Type | Switch Type | Package / Case | Ratio - Input:Output | Features | Rds On (Typ)▲▼ | Current - Output (Max)▲▼ | Voltage - Load▲▼ | Voltage - Load▲▼ | Number of Outputs▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Supplier Device Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Current Limiting (Adjustable), Over Temperature, Over Voltage, UVLO | High Side | Surface Mount | N-Channel | General Purpose | 28-VFQFN Exposed Pad | 1:1 | Slew Rate Controlled, Status Flag | 0.10000000149011612 Ω | 6 A | 28 V | 4.5 V | 2 ul | 125 °C | -40 °C | 28-VQFN (5x5) | |
Current Limiting (Adjustable), Over Temperature, Over Voltage, UVLO | High Side | Surface Mount | N-Channel | General Purpose | 28-VFQFN Exposed Pad | 1:1 | Slew Rate Controlled, Status Flag | 0.10000000149011612 Ω | 6 A | 28 V | 4.5 V | 2 ul | 125 °C | -40 °C | 28-VQFN (5x5) |
Key Features
• Integrated Dual Power Distribution Switches:2.5 V to 6 V Operating Input Voltage RangeIntegrated Back-to-Back Power MOSFETs WithTypical 100-mΩ On-ResistanceAdjustable Current Limiting from 75 mA to2.7 A±6% Current-Limit Accuracy at 1.2 A (Typical)Latch-off Over Current Protection VersionsReverse Input-Output Voltage ProtectionBuilt-In Soft-StartIntegrated Buck DCDC Converter:4.5 V to 28 V Wide Input Voltage RangeMaximum Continuous 6-A Output Load CurrentFeedback Reference Voltage 0.6 V ±1%Fixed 500-kHz Switching FrequencyBuilt-In Internal Soft-Start Time: 1 msCycle-by-Cycle Current LimitAdjustable Current Limit ThresholdOutput Over-Voltage ProtectionExternal Clock SynchronizationOver Temperature ProtectionIntegrated Dual Power Distribution Switches:2.5 V to 6 V Operating Input Voltage RangeIntegrated Back-to-Back Power MOSFETs WithTypical 100-mΩ On-ResistanceAdjustable Current Limiting from 75 mA to2.7 A±6% Current-Limit Accuracy at 1.2 A (Typical)Latch-off Over Current Protection VersionsReverse Input-Output Voltage ProtectionBuilt-In Soft-StartIntegrated Buck DCDC Converter:4.5 V to 28 V Wide Input Voltage RangeMaximum Continuous 6-A Output Load CurrentFeedback Reference Voltage 0.6 V ±1%Fixed 500-kHz Switching FrequencyBuilt-In Internal Soft-Start Time: 1 msCycle-by-Cycle Current LimitAdjustable Current Limit ThresholdOutput Over-Voltage ProtectionExternal Clock SynchronizationOver Temperature Protection
Description
AI
The TPS65286 is a full featured 4.5-V to 28-V VIN, 6-A output current synchronous step down DCDC converter, which is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs. The device also incorporates dual N-channel MOSFET power switches for power distribution systems. This device provides a total power distribution solution, where precision current limiting and fast protection response are required.
A dual 100-m&937; independent power distribution switch limits the output current to a programmable current limit threshold between typical 50 mA~2.7 A by using an external resistor. The current limit accuracy can be achieved as tightly as ±6% at typical 1.2 A. The nFAULT output asserts low under over-current and reverse-voltage conditions.
Constant frequency peak current mode control in the DCDC converter simplifies the compensation and optimizes transient response. Cycle-by-cycle over-current protection and operating in hiccup mode limit MOSFET power dissipation. When die temperature exceeds thermal over loading threshold, the over temperature protection shuts down the device.
The TPS65286 is a full featured 4.5-V to 28-V VIN, 6-A output current synchronous step down DCDC converter, which is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs. The device also incorporates dual N-channel MOSFET power switches for power distribution systems. This device provides a total power distribution solution, where precision current limiting and fast protection response are required.
A dual 100-m&937; independent power distribution switch limits the output current to a programmable current limit threshold between typical 50 mA~2.7 A by using an external resistor. The current limit accuracy can be achieved as tightly as ±6% at typical 1.2 A. The nFAULT output asserts low under over-current and reverse-voltage conditions.
Constant frequency peak current mode control in the DCDC converter simplifies the compensation and optimizes transient response. Cycle-by-cycle over-current protection and operating in hiccup mode limit MOSFET power dissipation. When die temperature exceeds thermal over loading threshold, the over temperature protection shuts down the device.