TPS56838 Series
4.5V to 28V input, 8A synchronous buck converter with FCCM operation
Manufacturer: Texas Instruments
Catalog(1 parts)
| Part | Voltage - Output (Max)▲▼ | Output Configuration | Synchronous Rectifier▲▼ | Voltage - Input (Max)▲▼ | Function | Voltage - Output (Min/Fixed)▲▼ | Package / Case | Operating Temperature▲▼ | Operating Temperature▲▼ | Current - Output▲▼ | Frequency - Switching▲▼ | Output Type | Topology | Supplier Device Package | Number of Outputs▲▼ | Voltage - Input (Min)▲▼ | Mounting Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments TPS56838RPARBuck Switching Regulator IC Positive Adjustable 0.6V 1 Output 8A 10-PowerVFQFN | 13 V | Positive | 28 V | Step-Down | 0.6000000238418579 V | 10-PowerVFQFN | 150 °C | -40 °C | 8 A | 500000 Hz, 800000 Hz, 1200000 Hz | Adjustable | Buck | 10-VQFN-HR (3x3) | 1 ul | 4.5 V | Surface Mount |
Key Features
• 4.5V to 28V input voltage range0.6V to 13V output voltage rangeSupports 8A continuous output currentIntegrated 20.4mΩ and 9.5mΩ MOSFETs0.6V ±1% reference voltage at 25°C45uA low quiescent current of TPS56837D-CAP3™ control mode for fast transient responseTPS56837 with Eco-mode (auto-skip mode) for high light-load efficiencyTPS56838 with forced continuous conduction mode (FCCM)TPS56836 with Out-of-Audio™ (OOA) mode500kHz, 800kHz, and 1200kHz selectable switching frequencies by mode selectionAdjustable cycle-by-cycle over current limit for low-side MOSFETs by mode selectionAdjustable soft-start time with default 1.8msBuilt-in output discharge functionPower-good indicator to monitor output voltageSupports up to 98% duty operationNon-latched protections for UV, OV, OT, and UVLO–40°C to +150°C operating junction temperatureSmall 10-pin 3.0mm × 3.0mm HotRod™ QFN PackageCreate a customer design using the TPS5683x with theWEBENCH Power DesignerPin-to-pin compatible with 6ATPS56637and 8ATPS56837H4.5V to 28V input voltage range0.6V to 13V output voltage rangeSupports 8A continuous output currentIntegrated 20.4mΩ and 9.5mΩ MOSFETs0.6V ±1% reference voltage at 25°C45uA low quiescent current of TPS56837D-CAP3™ control mode for fast transient responseTPS56837 with Eco-mode (auto-skip mode) for high light-load efficiencyTPS56838 with forced continuous conduction mode (FCCM)TPS56836 with Out-of-Audio™ (OOA) mode500kHz, 800kHz, and 1200kHz selectable switching frequencies by mode selectionAdjustable cycle-by-cycle over current limit for low-side MOSFETs by mode selectionAdjustable soft-start time with default 1.8msBuilt-in output discharge functionPower-good indicator to monitor output voltageSupports up to 98% duty operationNon-latched protections for UV, OV, OT, and UVLO–40°C to +150°C operating junction temperatureSmall 10-pin 3.0mm × 3.0mm HotRod™ QFN PackageCreate a customer design using the TPS5683x with theWEBENCH Power DesignerPin-to-pin compatible with 6ATPS56637and 8ATPS56837H
Description
AI
The TPS5683x is a high-efficiency, easy-to-use, synchronous buck converter with a wide input voltage range of 4.5V to 28V. The device supports up to 8A continuous output current at output voltages between 0.6V and 13V.
The TPS5683x uses D-CAP3 control mode to provide fast transient response, good line and load regulation, no requirement for external compensation, and supports low equivalent series resistance (ESR) output capacitors like MLCC.
The TPS56837 operates at Eco-mode to attain high efficiency at light load. The TPS56838 operates in forced continuous conduction mode which maintains lower output ripple during all load conditions. The TPS56836 operates in Out-of-Audio mode to avoid audible noise.
The TPS5683x has three selectable switching frequencies, 500kHz, 800kHz, and 1200kHz, and selectable current limit through MODE pin configuration. The TPS5683x has adjustable soft-start time by connecting the SS capacitor and with default 1.8ms with the SS pin floating.
The TPS5683x provides complete non-latched OV (overvoltage), UV (undervoltage), OC (overcurrent), OT (overtemperature) and UVLO (undervoltage lockout) protections combined with power-good indicator and output discharge function features.
The TPS5683x is available in a 10-pin, 3.0mm × 3.0mm, HotRod QFN package, and the junction temperature is specified from –40°C to 150°C.
The TPS5683x is a high-efficiency, easy-to-use, synchronous buck converter with a wide input voltage range of 4.5V to 28V. The device supports up to 8A continuous output current at output voltages between 0.6V and 13V.
The TPS5683x uses D-CAP3 control mode to provide fast transient response, good line and load regulation, no requirement for external compensation, and supports low equivalent series resistance (ESR) output capacitors like MLCC.
The TPS56837 operates at Eco-mode to attain high efficiency at light load. The TPS56838 operates in forced continuous conduction mode which maintains lower output ripple during all load conditions. The TPS56836 operates in Out-of-Audio mode to avoid audible noise.
The TPS5683x has three selectable switching frequencies, 500kHz, 800kHz, and 1200kHz, and selectable current limit through MODE pin configuration. The TPS5683x has adjustable soft-start time by connecting the SS capacitor and with default 1.8ms with the SS pin floating.
The TPS5683x provides complete non-latched OV (overvoltage), UV (undervoltage), OC (overcurrent), OT (overtemperature) and UVLO (undervoltage lockout) protections combined with power-good indicator and output discharge function features.
The TPS5683x is available in a 10-pin, 3.0mm × 3.0mm, HotRod QFN package, and the junction temperature is specified from –40°C to 150°C.