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Technical Specifications
Parameters and characteristics for this part
| Specification | LM5141QRGEVM |
|---|---|
| Board Type | Fully Populated |
| Current - Output | 5 A |
| Frequency - Switching | 2.2 MHz |
| Main Purpose | DC/DC, Step Down |
| Outputs and Type | Non-Isolated |
| Outputs and Type | 1 |
| Regulator Topology | Buck |
| Supplied Contents | Board(s) |
| Utilized IC / Part | LM5141-Q1 |
| Voltage - Input [Max] | 42 V |
| Voltage - Input [Min] | 5.5 V |
| Voltage - Output | 5 V |
LM5141-Q1 Series
Automotive wide-input 2.2-MHz low-IQ synchronous buck controller
| Part | Output Phases | Operating Temperature [Max] | Operating Temperature [Min] | Topology | Number of Outputs | Supplier Device Package | Voltage - Supply (Vcc/Vdd) [Max] | Voltage - Supply (Vcc/Vdd) [Min] | Clock Sync | Control Features | Function | Frequency - Switching | Mounting Type | Package / Case | Output Configuration | Grade | Qualification | Synchronous Rectifier | Output Type | Voltage - Input [Max] | Voltage - Input [Min] | Supplied Contents | Regulator Topology | Current - Output | Voltage - Output | Outputs and Type | Outputs and Type | Utilized IC / Part | Main Purpose | Board Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 Texas Instruments | 1 | 150 °C | -40 °C | Buck | 1 | 24-VQFN (4x4) | 65 V | 3.8 V | Current Limit Enable Frequency Control Power Good Soft Start | Step-Down | 2.2 MHz 440 kHz | Surface Mount | 24-VFQFN Exposed Pad | Positive | Automotive | AEC-Q100 | Transistor Driver | |||||||||||||
Texas Instruments | 1 | 150 °C | -40 °C | Buck | 1 | 24-VQFN (4x4) | 65 V | 3.8 V | Current Limit Enable Frequency Control Power Good Soft Start | Step-Down | 2.2 MHz 440 kHz | Surface Mount | 24-VFQFN Exposed Pad | Positive | Automotive | AEC-Q100 | Transistor Driver | |||||||||||||
Texas Instruments | 1 | 150 °C | -40 °C | Buck | 1 | 24-VQFN (4x4) | 65 V | 3.8 V | Current Limit Enable Frequency Control Power Good Soft Start | Step-Down | 2.2 MHz 440 kHz | Surface Mount | 24-VFQFN Exposed Pad | Positive | Automotive | AEC-Q100 | Transistor Driver | |||||||||||||
Texas Instruments | 2.2 MHz | 42 V | 5.5 V | Board(s) | Buck | 5 A | 5 V | Non-Isolated | 1 | LM5141-Q1 | DC/DC Step Down | Fully Populated | ||||||||||||||||||
 Texas Instruments | 1 | 150 °C | -40 °C | Buck | 1 | 24-VQFN (4x4) | 65 V | 3.8 V | Current Limit Enable Frequency Control Power Good Soft Start | Step-Down | 2.2 MHz 440 kHz | Surface Mount | 24-VFQFN Exposed Pad | Positive | Automotive | AEC-Q100 | Transistor Driver |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Bulk | 1 | $ 118.80 | |
Description
General part information
LM5141-Q1 Series
The LM5141-Q1 is a synchronous buck controller, intended for high voltage wide VINstep-down converter applications. The control method is peak current mode control. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting, and ease-of-loop compensation. The LM5141-Q1 features slew rate control to simplify the compliance with CISPR and automotive EMI requirements.
The LM5141-Q1 has two selectable switching frequencies: 2.2 MHz and 440 kHz. Gate drivers with slew rate Control that can be adjusted to reduce EMI.
In light or no-load conditions, the LM5141-Q1 operates in skip cycle mode for improved low power efficiency. The LM5141-Q1 has a high voltage bias regulator with automatic switch-over to an external bias to reduce the IQcurrent from VIN. Additional features include frequency synchronization, cycle-by-cycle current limit, hiccup mode fault protection for sustained overload, and power good output.
Documents
Technical documentation and resources