TPS40054 Series
Wide Input (8V-40V) up to 1MHz Frequency Synchronous Buck Controller, source only
Manufacturer: Texas Instruments
Catalog(3 parts)
| Part | Package / Case▲▼ | Package / Case | Package / Case▲▼ | Synchronous Rectifier▲▼ | Number of Outputs▲▼ | Supplier Device Package | Output Configuration | Frequency - Switching▲▼ | Duty Cycle (Max)▲▼ | Function | Voltage - Supply (Vcc/Vdd)▲▼ | Voltage - Supply (Vcc/Vdd)▲▼ | Operating Temperature▲▼ | Operating Temperature▲▼ | Control Features | Output Phases▲▼ | Topology | Clock Sync▲▼ | Mounting Type | Output Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0.004399999976158142 m | 16-PowerTSSOP | 0.004394200164824724 m | 1 ul | 16-HTSSOP | Positive | 1000000 Hz | 0.9399999976158142 ul | Step-Down | 40 V | 8 V | 85 °C | -40 °C | Current Limit, Enable, Frequency Control, Soft Start | 1 ul | Buck | Surface Mount | Transistor Driver | |||
Texas Instruments TPS40054PWPRG4Buck Regulator Positive Output Step-Down DC-DC Controller IC 16-HTSSOP | 0.004399999976158142 m | 16-PowerTSSOP | 0.004394200164824724 m | 1 ul | 16-HTSSOP | Positive | 1000000 Hz | 0.9399999976158142 ul | Step-Down | 40 V | 8 V | 85 °C | -40 °C | Current Limit, Enable, Frequency Control, Soft Start | 1 ul | Buck | Surface Mount | Transistor Driver | ||
0.004399999976158142 m | 16-PowerTSSOP | 0.004394200164824724 m | 1 ul | 16-HTSSOP | Positive | 1000000 Hz | 0.9399999976158142 ul | Step-Down | 40 V | 8 V | 85 °C | -40 °C | Current Limit, Enable, Frequency Control, Soft Start | 1 ul | Buck | Surface Mount | Transistor Driver |
Key Features
• New products availableLM514575-V synchronous buck controller with wide input voltage and duty cycle rangesLM5146100-V synchronous buck DC/DC controller with wide duty-cycle rangeOperating input voltage 8 V to 40 VInput voltage feedforward compensation< 1% internal 0.7-V referenceProgrammable fixed-frequency up to 1-MHz voltage mode controllerInternal gate-drive outputs for high-side and synchronous N-channel MOSFETs16-pin PowerPAD™ package (RθJC= 2°C/W)Thermal shutdownExternally synchronizableProgrammable high-side sense short-circuit protectionProgrammable closed-loop soft startTPS40054 source onlyTPS40055 source and sinkTPS40057 source and sink with VOprebiasNew products availableLM514575-V synchronous buck controller with wide input voltage and duty cycle rangesLM5146100-V synchronous buck DC/DC controller with wide duty-cycle rangeOperating input voltage 8 V to 40 VInput voltage feedforward compensation< 1% internal 0.7-V referenceProgrammable fixed-frequency up to 1-MHz voltage mode controllerInternal gate-drive outputs for high-side and synchronous N-channel MOSFETs16-pin PowerPAD™ package (RθJC= 2°C/W)Thermal shutdownExternally synchronizableProgrammable high-side sense short-circuit protectionProgrammable closed-loop soft startTPS40054 source onlyTPS40055 source and sinkTPS40057 source and sink with VOprebias
Description
AI
The TPS4005x is a family of high-voltage, wide-input (8 V to 40 V), synchronous, step-down controllers. The TPS4005x family offers design flexibility with a variety of user-programmable functions, including soft start, UVLO, operating frequency, voltage feedforward, high-side current limit, and loop compensation.
The TPS4005x uses voltage feedforward control techniques to provide good line regulation over the wide (4:1) input voltage range, and fast response to input line transients. Near-constant modulator gain with input variation eases loop compensation. The externally programmable current limit provides pulse-by-pulse current limit, as well as hiccup mode operation using an internal fault counter for longer duration overloads.
The new products, LM5145 and LM5146, offer reduced BOM cost, higher efficiency, and reduced solution size among many other features. Start a WEBENCH design withLM5145andLM5146.
The TPS4005x is a family of high-voltage, wide-input (8 V to 40 V), synchronous, step-down controllers. The TPS4005x family offers design flexibility with a variety of user-programmable functions, including soft start, UVLO, operating frequency, voltage feedforward, high-side current limit, and loop compensation.
The TPS4005x uses voltage feedforward control techniques to provide good line regulation over the wide (4:1) input voltage range, and fast response to input line transients. Near-constant modulator gain with input variation eases loop compensation. The externally programmable current limit provides pulse-by-pulse current limit, as well as hiccup mode operation using an internal fault counter for longer duration overloads.
The new products, LM5145 and LM5146, offer reduced BOM cost, higher efficiency, and reduced solution size among many other features. Start a WEBENCH design withLM5145andLM5146.