SP6203 Datasheet, PDF (1/14 Pages) Sipex Corporation – Low Noise, 300mA and 500mA CMOS LDO Regulators

April 2012
SP6 2 0 3 / SP6 2 0 5
3 0 0 m A / 5 0 0 m A Lo w N o i se CM OS LDO Re g u l a t o r s
Rev. 2.0.0
GENERAL DESCRIPTION
The SP6203 and SP 6205 are ultra low noise
CMOS LDOs with very low dropout and ground
current. The noise performance is achieved by
means of an external bypass capacitor without
sacrificing turn - on and turn - off speed critical
to portable applications. Extremely stable and
easy to use, these devices offer excellent
PSRR and Line/Load regulation. Target
applications
include
battery - powered
equipment such as portable and wireless
products. Regulators' ground current increases
only slightly in dropout. Fast turn - on/turn - off
enab le control and an internal 30 Ÿ pull down
on output allows quick discharge of output
even under no load conditions. Both LDOs are
protected with current limit and thermal
shutdown.
Both LDOs are available in fixed & adjustable
output voltage versions and co me in an
industry standard 5- pin SOT-23 and small
2X3 mm 8- pin DFN packages. For SC -70
100mA CMOS LDO, SP62 13 is available.
TYPICAL APPLICATION DIAGRAM
APPLICATIONS
xBattery - Powered Systems
xMedical Equipments
xMP3/CD Players
xDigital Cameras
FEATURES
x300mA/ 500mA Output Current
SP6203: 3 00mA ±SP6205: 500mA
Low Dropout Voltage: 0.6 Æ» PMOS FET
x2.7V to 5.5V Input Voltage
Fixed and Adjustable Output Voltage
Accurate Output Voltage : 2% over Temp .
x67dB Power Supply Rejection Ratio
x1 Nj9_RMS Low Output Noise
x 8QFRQGLWLRQDOO\6WDEOHZLWK
Ceram ic
x /RZ4XLHVFHQW&XUUHQWNj$
x/RZ*URXQG&XUUHQat W500mANj$
xFast Turn - On and Turn - 2IINj6
xVery Good Load/Line Regulation:
0.07/0.0 %
xCurrent Limit and Thermal Protection
x 5R+6&RPSOLDQW³*UHHQ´+DORJ
5 - Pin SOT23 and 8 - Pin DFN Packages
Fig. 1: SP6203 /SP 6205 Application Diagram
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. [phone] - 70 00 ±Fax. [phone] - 70 01