LM5117QPSQE/NOPB | Texas Instruments
LM5117QPSQE/NOPB
Buck Controller, LM5117QPSQE/NOPB, Texas Instruments
The LM5117QPSQE/NOPB is a synchronous buck controller intended for step-down regulator applications from a high voltage or widely varying input supply. The control method is based upon current mode control utilizing an emulated current ramp. Current mode control provides inherent line feed-forward, cycle-by-cycle current limiting and ease of loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications.
Features
- Emulated Peak Current Mode Control
- Adaptive Dead-Time Output Driver Control
- Optional Diode Emulation Mode
- Analog Current Monitor
- Programmable Current Limit
- Hiccup Mode Overcurrent Protection
- Programmable Soft-Start and Tracking
- Programmable Line Undervoltage Lockout
- Programmable Switchover to External Bias Supply
- Thermal Shutdown
Applications
- Automotive Infotainment
- Industrial DC-DC Motor Drivers
- Automotive USB Power
- Telecom Server
| Filter | Property | Value |
|---|---|---|
| Assembly | SMD | |
| max. operating temperature | 125 °C | |
| Enclosure | WFQFN-24 | |
| min. operating temperature | -40 °C |
| Property | Value |
|---|---|
| Country of origin | US |
| Property | Value |
|---|---|
| Date of RoHS guidelines | 3/31/15 |
| SVHC free | Yes |
| RoHS conform | Yes |