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L5985

STMicroelectronics
Part Number L5985
Manufacturer STMicroelectronics
Description 2A step-down switching regulator
Published Jul 9, 2009
Detailed Description L5985 2 A step-down switching regulator Datasheet - production data VFQFPN8 3 mm x 3 mm  Industrial: chargers, PLD,...
Datasheet PDF File L5985 PDF File

L5985
L5985

Overview
L5985 2 A step-down switching regulator Datasheet - production data VFQFPN8 3 mm x 3 mm  Industrial: chargers, PLD, PLA, FPGA  Networking: XDSL, modems, DC-DC modules  Computer: 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 kHz 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 components, the device includes an internal 250 kHz 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 RthJA 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.
DocID13006 Rev 6 1/37 www.
st.
com Contents Contents L5985 1 Pin settings .
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4 1.
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4 1.
2 Pin description .
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4 2 Maximum ratings .
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5 2.
1 Absolute maximum r...


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