L5983 datasheet(1/37 Pages) STMICROELECTRONICS

Numer części	L5983

Szczegółowy opis	1.5A step-down switching regulator

PDF	37 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

Logo

1 / 37 page

October 2007

Rev 2

1/37

37

L5983

1.5A step-down switching regulator

Features

■ 1.5A DC output current

■ 2.9V to 18V input voltage

■ Output voltage adjustable from 0.6V

■ 250kHz switching frequency, programmable

up to 1MHz

■ Internal soft-start

■ Inhibit

■ Low dropout operation: 100% duty cycle

■ Voltage feed-forward

■ Zero load current operation

■ Over current and thermal protection

■ VQFN3x3-8L package

Applications

■ Consumer:

STB, DVD, DVD recorder, car audio, LCD TV

and monitors

■ Industrial:

Chargers, car battery, PLD, PLA, FPGA

■ Networking: XDSL, modems, DC-DC modules

■ Computer:

Optical storage, hard disk drive, printers,

audio/graphic cards

Figure 1.

Application circuit

Description

The L5983 is a step down switching regulator with

2.0A current limited embedded power MOSFET,

so it is able to deliver an output current in excess

of 1.5A DC to the load.

The input voltage can range from 2.9V to 18V,

while the output voltage can be set starting from

0.6V to VIN. Having a minimum input voltage of

2.9V, the device is suitable for also for the 3.3V

bus.

Requiring a minimum set of external components,

the device includes an internal 250kHz switching

frequency oscillator that can be externally

adjusted up to 1MHz.

The QFN package with exposed pad allows

reducing the RthJA down to approximately

60°C/W.

VFQFPN8 3x3

www.st.com

Podobny numer części - L5983

Producent	Numer części	Arkusz danych	Szczegółowy opis
STMicroelectronics	L5983	966Kb / 37P	1.5 A step-down switching regulator 16-Sep-2008
	L5983TR	966Kb / 37P	1.5 A step-down switching regulator 16-Sep-2008
	L5983	966Kb / 37P	1.5 A step-down switching regulator 16-Sep-2008

More results

Podobny opis - L5983

Producent	Numer części	Arkusz danych	Szczegółowy opis
STMicroelectronics	L4971	134Kb / 12P	1.5A STEP DOWN SWITCHING REGULATOR May-2000
STMicroelectronics	L5971	96Kb / 11P	1.5A STEP DOWN SWITCHING REGULATOR May-2000
Linear Technology	LT1576	290Kb / 28P	1.5A, 200kHz Step-Down Switching Regulator
Semtech Corporation	SC4517A	269Kb / 15P	1.25MHz, 1.5A Step-Down Switching Regulator
STMicroelectronics	L4971	574Kb / 13P	1.5A STEP DOWN SWITCHING REGULATOR May-2005
	E-L4971D013TR	574Kb / 13P	1.5A STEP DOWN SWITCHING REGULATOR Rev. 11
	E-L4971	574Kb / 13P	1.5A STEP DOWN SWITCHING REGULATOR May-2005
Linear Technology	LT1576	302Kb / 28P	1.5A, 200kHz Step-Down Switching Regulator
	LT1576-5	302Kb / 28P	1.5A, 200kHz Step-Down Switching Regulator
	LT1578	302Kb / 28P	1.5A, 200kHz Step-Down Switching Regulator

More results

L5983 Arkusz danych(PDF) 1 Page - STMicroelectronics

L5983 Arkusz danych(HTML) 1 Page - STMicroelectronics

Podobny numer części - L5983

Podobny opis - L5983

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37

Arkusz danych Pobierz

Link URL