| TYPE | DESCRIPTION |
|---|
| Number of Pins | 40 Pin |
| Supply Voltage (DC) | 3.80V (min) |
| Case/Package | VQFN-40 |
| Number of Outputs | 2 Output |
| Output Voltage | 1.5V ~ 15V |
| Output Current | 150 mA |
| Number of Positions | 40 Position |
| Quiescent Current | 35.0 µA |
| Number of Regulated Outputs | 2 Output |
| Rise Time | 4 ns |
| Switching Frequency | 2.2 MHz |
| Topology | Buck |
| Switching Current | 0.25 A |
| Duty Cycle | 50 % |
| Input Voltage (Max) | 65 V |
| Input Voltage (Min) | 3.8 V |
| Fall Time | 3 ns |
| Operating Temperature (Max) | 150 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Supply Voltage (Max) | 65 V |
| Supply Voltage (Min) | 3.8 V |
| Input Voltage | 65 V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Cut Tape (CT) |
| Operating Temperature | -40℃ ~ 150℃ (TJ) |
The LM5140-Q1 is a dual synchronous buck controller intended for high voltage wide VIN step-down converter applications. The control method is based on current mode control. Current mode control provides inherent line feedforward, cycle-by-cycle current limiting, and easier loop compensation.
●The LM5140-Q1 features adjustable slew rate control to simplify compliance with the CISPR and automotive EMI requirements. The LM5140-Q1 operates at selectable switching frequencies of 2.2 MHz or 440 kHz with the two controller channels switching 180°; out of phase. In light or no-load conditions, the LM5140-Q1 operates in skip cycle mode for improved low power efficiency. The LM5140-Q1 includes a high voltage bias regulator with automatic switchover to an external bias supply to improve efficiency and reduce input current. Additional features include frequency synchronization, cycle-by-cycle current limit, hiccup mode fault protection for sustained overloads, independent power good outputs, and independent enable inputs.
TI
Conv DC-DC 3.8V to 65V Synchronous Step Down Dual-Out 1.5V to 15V 40A/20A 40Pin VQFNP EP T/R
TI
Conv DC-DC 3.8V to 65V Synchronous Step Down Dual-Out 1.5V to 15V 40A/20A 40Pin VQFNP EP T/R
TI
Power Management IC Development Tools LM5140RWGEVM Dual Synchronous Buck Converter EVM
TI
LM5140-Q1 DC to DC Converter and Switching Regulator Chip 3.267VDC to 3.333VDC/4.95VDC to 5.05VDC Output Evaluation Board
TI
Wide Vin Dual 2.2MHz low Iq Synchronous Buck Controller 40-VQFNP -40 to 150
Part Datasheet PDF Search
72,405,303 Parts Datasheet PDF, Update more than 5,000 PDF files ervery day.
