SP6205EM5-L-3-3-TR Datasheet, PDF (1/15 Pages) Exar Corporation – 300mA/500mA Low Noise CMOS LDO Regulators

April 2012
SP6203 / SP6205
300mA/500mA Low Noise CMOS LDO Regulators
Rev. 2.0.0
GENERAL DESCRIPTION
The SP6203 and SP6205 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
enable control and an internal 30Ω 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 come in an
industry standard 5-pin SOT-23 and small
2X3mm 8-pin DFN packages. For SC-70
100mA CMOS LDO, SP6213 is available.
TYPICAL APPLICATION DIAGRAM
APPLICATIONS
 Battery-Powered Systems
 Medical Equipments
 MP3/CD Players
 Digital Cameras
FEATURES
 300mA/500mA Output Current
 SP6203: 300mA – SP6205: 500mA
 Low Dropout Voltage: 0.6Ω PMOS FET
 2.7V to 5.5V Input Voltage
 Fixed and Adjustable Output Voltage
 Accurate Output Voltage: 2% over Temp.
 67dB Power Supply Rejection Ratio
 12μV_RMS Low Output Noise
 Unconditionally Stable with 2.2μF
Ceramic
 Low Quiescent Current: 5μA
 Low Ground Current: 350μA at 500mA
 Fast Turn-On and Turn-Off: 60μS
 Very Good Load/Line Regulation:
0.07/0.0 %
 Current Limit and Thermal Protection
 RoHS Compliant “Green”/Halogen Free
5-Pin SOT23 and 8-Pin DFN Packages
Fig. 1: SP6203/SP6205 Application Diagram
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. [phone] – Fax. [phone]