The L7986/A is a step-down switching regulator with a 3.7 A (minimum) current limited embedded power MOSFET, so it is able to deliver up to 3 A current to the load depending on the application conditions. The input voltage can range from 4.5 V to 38 V, while the output voltage can be set starting from 0.6 V to VIN. Requiring a minimum set of external components, the device includes an internal 250 kHz switching frequency oscillator that can be externally adjusted up to 1 MHz. The DFN and the HSOP packages with exposed pad allow reducing the RthJAdown to 60 °C/W and 40 °C/W respectively.

3 A DC output current
4.5 V to 38 V input voltage
Output voltage adjustable from 0.6 V
250 kHz switching frequency, programmable up to 1 MHz
Internal soft-start and enable
Low dropout operation: 100% duty cycle
Voltage feed-forward
Zero load current operation
Overcurrent and thermal protection
VFDFPN 3 x 3 - 10L and HSOP8 package
Applications
Consumer: STB, DVD, DVD recorder, car audio, LCD TV and monitors
Industrial: PLD, PLA, FPGA, chargers
Networking: XDSL, modems, DC-DC modules
Computer: optical storage, hard disk drive, printers, audio/graphic cards
LED driving