| Part Number | LM2640 |
|---|---|
| Manufacturer | National Semiconductor |
| Overview | The LM2640 is a dual step-down power supply controller intended for application in notebook personal computers and other battery-powered equipment. Fixed-frequency synchronous drive of logic-level N-c. n 200 kHz fixed-frequency switching n Switching synchronization with an external signal up to 400 kHz n Optional pulse-skipping mode n Adjustable secondary feedback n Input undervoltage lockout n Output undervoltage shutdown protection n Output overvoltage shutdown protection n Programmable soft-sta. |
LM2640 Datasheet
The LM2640 is a Dual Adjustable Step-Down Switching Power-Supply Controller.
| Part Number | LM2640 |
|---|---|
| Description | Dual Adjustable Step-Down Switching Power Supply Controller |
| Manufacturer | Texas Instruments |
| Overview |
The LM2640 is a dual step-down power supply controller intended for application in notebook personal computers and other battery-powered equipment.
Fixed-frequency synchronous drive of logic-level Nch.
1
*2 200 kHz Fixed-Frequency Switching * Switching Synchronization with an External Signal up to 400 kHz * Optional Pulse-Skipping Mode * Adjustable Secondary Feedback * Input Undervoltage Lockout * Output Undervoltage Shutdown Protection * Output Overvoltage Shutdown Protection * Programmable Soft-. |