SP6205EM5-L-3-3-TR datasheet(11/15 Pages) EXAR

Part #	SP6205EM5-L-3-3-TR

Description	300mA/500mA Low Noise CMOS LDO Regulators

Download	15 Pages

Scroll/Zoom	100%

Manufacturer	EXAR [Exar Corporation]

Direct Link	http://www.exar.com

Logo

11 / 15 page

S

SP

P6

62

20

03

3 /

/ S

SP

P6

62

20

05

5

3

30

00

0m

mA

A/

/5

50

00

0m

mA

A L

Lo

ow

w N

No

oiis

se

e C

CM

MO

OS

S L

LD

DO

O R

Re

eg

gu

ulla

atto

orrs

s

11/14

Rev. 2.0.0

After calculation, we find that in such an

application (SP6205) the regulator is limited to

260.6mA. Doing the same calculations for the

300mA LDO (SP6203) will limit the regulator’s

output current to 260.9mA.

Also, taking advantage of the very low dropout

voltage characteristics of the SP6203/6205,

power dissipation can be reduced by using the

lowest possible input voltage to minimize the

input-to-output drop.

ADJUSTABLE REGULATOR APPLICATIONS

The SP6203/6205 can be adjusted to a specific

output voltage by using two external resistors

(see functional diagram). The resistors set the

output

voltage

based

on

the

following

equation:

VOUT = VREF *(R1/R2 + 1)

Resistor values are not critical because ADJ

(adjust) has a high input impedance, but for

best performance use resistors of 470KΩ or

less. A bypass capacitor from ADJ to VOUT

provides improved noise performance.

DUAL-SUPPLY OPERATION

When used in dual supply systems where the

regulator load is returned to a negative

supply, the output voltage must be diode

clamped to ground.

LAYOUT CONSIDERATIONS

The primary path of heat conduction out of the

package is via the package leads. Therefore,

careful considerations have to be taken into

account:

1) Attaching the part to a larger copper

footprint will enable better heat transfer from

the device, especially on PCB’s where there

are internal ground and power planes.

2) Place the input, output and bypass

capacitors close to the device for optimal

transient response and device behavior.

3) Connect all ground connections directly to

the ground plane. In case there’s no ground

plane, connect to a common local ground point

before connecting to board ground.

Such layouts will provide a much better

thermal conductivity (lower θJA) for, a higher

maximum allowable power dissipation limit.

Similar Part No. - SP6205EM5-L-3-3-TR

Manufacturer	Part #	Datasheet	Description
Exar Corporation	SP6205EM5-L-3-3	1Mb / 14P	GENERAL DESCRIPTION

More results

Similar Description - SP6205EM5-L-3-3-TR

Manufacturer	Part #	Datasheet	Description
Exar Corporation	SP6203EM5-L	1Mb / 15P	300mA/500mA Low Noise CMOS LDO Regulators
Sipex Corporation	SP6203	751Kb / 16P	Low Noise, 300mA and 500mA CMOS LDO Regulators
Sipex Corporation	SP6203	164Kb / 14P	Low Noise, 300mA and 500mA CMOS LDO Regulators
Global Mixed-mode Techn...	G914X	275Kb / 10P	300mA Low-Noise LDO Regulators
	G924	427Kb / 9P	300mA Low-Noise LDO Regulators
	G982	83Kb / 1P	300mA Low-Noise LDO Regulators
	G924	111Kb / 2P	300mA Low-Noise LDO Regulators
Silicon Standard Corp.	SS8014	291Kb / 10P	300mA Low-Noise LDO Regulators
Linear Technology	LT1962EMS8-1.8	281Kb / 16P	300mA, Low Noise, Micropower LDO Regulators
Linear Technology	LT1962EMS8-5PBF	297Kb / 16P	300mA, Low Noise, Micropower LDO Regulators

More results

SP6205EM5-L-3-3-TR Datasheet(PDF) 11 Page - Exar Corporation

SP6205EM5-L-3-3-TR Datasheet(HTML) 11 Page - Exar Corporation

Similar Part No. - SP6205EM5-L-3-3-TR

Similar Description - SP6205EM5-L-3-3-TR

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Datasheet Download

Link URL