L5980_08 datasheet(1/37 Pages) STMICROELECTRONICS

Part #	L5980

Description	0.7 A step-down switching regulator

Download	37 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

Logo

1 / 37 page

September 2008

Rev 3

1/37

37

L5980

0.7 A step-down switching regulator

Features

■ 0.7 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 feed-forward

■ Zero load current operation

■ Over current and thermal protection

■ VFQFPN8 3 x 3 mm package

Applications

■ Consumer: STB, DVD, DVD recorder, car

audio, LCD TV and monitors

■ Industrial: Chargers, PLD, PLA, FPGA

■ Networking: XDSL, modems, DC-DC modules

■ Computer: Optical storage, hard disk drive,

printers, audio/graphic cards

■ LED driving

Description

The L5980 is step down switching regulator with

1 A (min.) current limited embedded power

MOSFET, so it is able to deliver in excess of 0.7 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 also for 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.

The FVQFPN package with exposed pad allows

reducing the RthJA down to approximately

60 °C/W.

VFQFPN8 3 x 3 mm

Figure 1.

Application circuit

www.st.com

Similar Part No. - L5980_08

Manufacturer	Part #	Datasheet	Description
STMicroelectronics	L5980TR	1Mb / 37P	0.7A step-down switching regulator

More results

Similar Description - L5980_08

Manufacturer	Part #	Datasheet	Description
STMicroelectronics	STEVAL-ISA154V1	98Kb / 4P	0.7 A step-down switching regulator evaluation board based on the L5980 April 2014 Rev 1
	EVAL5980	287Kb / 6P	0.7 A step-down switching regulator demonstration board based on the L5980 March 2009 Rev 1
	L7981ATR	1Mb / 44P	3 A step-down switching regulator
	L5981	872Kb / 37P	1 A step-down switching regulator
ON Semiconductor	LM2596	455Kb / 25P	3.0 A, Step-Down Switching Regulator November, 2008 ??Rev. 0
STMicroelectronics	L5986	1Mb / 39P	2.5 A step-down switching regulator
STMicroelectronics	L5987	1Mb / 42P	3 A step-down switching regulator
ON Semiconductor	LM2594	560Kb / 25P	0.5 A, Step-Down Switching Regulator January, 2009 ??Rev. 0
STMicroelectronics	L7986TA	784Kb / 43P	3 A step-down switching regulator
STMicroelectronics	L7980	1Mb / 44P	2 A step-down switching regulator

More results

L5980 Datasheet(PDF) 1 Page - STMicroelectronics

L5980 Datasheet(HTML) 1 Page - STMicroelectronics

Similar Part No. - L5980_08

Similar Description - L5980_08

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

Datasheet Download

Link URL