Description
Depending on the application, the L5980 step-down switching regulator can deliver more than 0.7 A of DC current to the load because it has an incorporated Power MOSFET with a 1 A (min.) current limit.
The output voltage ranges from 0.6 V to VIN, whereas the input voltage ranges from 2.9 V to 18 V. The device can be used with a 3.3 V bus despite having a minimum input voltage of 2.9 V.
The gadget has an internal 250 kHz switching frequency oscillator that can be externally tuned up to 1 MHz and only needs a minimal set of external components.
The RthJA can be lowered to about 60 °C/W using the VFQFPN8 package, which has an exposed pad.
Features
Voltage feedforward
Zero load current operation
Overcurrent and thermal protection
VFQFPN8 3 x 3 mm package
250 kHz switching frequency, programmable up to 1 MHz
Internal soft-start and inhibit
Low dropout operation: 100% duty cycle
0.7 A DC output current
2.9 V to 18 V input voltage
Output voltage adjustable from 0.6 V
Applications
Computer: optical storage, hard disk drive, printers, audio/graphic cards
LED driving
Industrial: chargers, PLD, PLA, FPGA
Networking: XDSL, modems, DC-DC modules
Consumer: STB, DVD, DVD recorder, car audio, LCD TV and monitors
