L5985
L5985 is 2A step-down switching regulator manufactured by STMicroelectronics.
2 A step-down switching regulator
- production data
VFQFPN8 3 mm x 3 mm
- Industrial: chargers, PLD, PLA, FPGA
- Networking: XDSL, modems, DC-DC modules
- puter: optical storage, hard disk drive, printers, audio/graphic cards
- LED driving
Features
- 2 A DC output current
- 2.9 V to 18 V input voltage
- Output voltage adjustable from 0.6 V
- 250 k Hz switching frequency, programmable up to 1 MHz
- Internal soft-start and inhibit
- Low dropout operation: 100% duty cycle
- Voltage feedforward
- Zero load current operation
- Overcurrent and thermal protection
- VFQFPN8 3 mm x 3 mm package
Description
The L5985 is a step-down switching regulator with a 2.5 A (min.) current limited embedded Power MOSFET, so it is able to deliver up to 2 A DC current to the load depending on the application condition.
The input voltage can range from 2.9 V to 18 V, while the output voltage can be set starting from 0.6 V to VIN. Having a minimum input voltage of 2.9 V, the device is suitable for a 3.3 V bus.
Requiring a minimum set of external ponents, the device includes an internal 250 k Hz switching frequency oscillator that can be externally adjusted up to 1 MHz.
Applications
- Consumer: STB, DVD, DVD recorder, car
The VFQFPN8 package with an exposed pad allows reducing the Rth JA down to approximately 60 °C/W. audio, LCD TV and monitors
Figure 1. Application circuit
May 2014
This is information on a product in full production.
Doc ID13006 Rev...
