XRP6272ITC5TR-F Datasheet, PDF (1/13 Pages) Exar Corporation – 2A 5V-Adjustable Low Dropout Voltage Regulator

November 2011
XRP6272
2A 5V-Adjustable Low Dropout Voltage Regulator
Rev. 1.2.0
GENERAL DESCRIPTION
The XRP6272 is a low dropout voltage
regulator capable of a constant output current
up to 2 Amps. A wide 1.8V to 6V input voltage
range allows for single supply operations from
industry standard 1.8V, 2.8V, 3.3V, and 5V
power rails as well as the 5.8V rail.
With better than ±2% output voltage
accuracy, low output noise and high Power
Supply Rejection Ratio (PSRR), the XRP6272 is
perfectly suited for powering RF circuitries.
Optimized for use with small low cost ESR
ceramic output capacitors and featuring a low
30µA quiescent current, this device is also
adequate for use in battery powered portable
equipments. The XRP6272 operates by default
as a 5V fixed output voltage regulator while
usage of an external resistors divider allows
adjustable out voltages as low as 0.7V. An
Enable function, Power Good flag and output
noise reduction pin complete the feature set.
Built-in current limit and thermal protections
insure safe operations under abnormal
operating conditions.
The XRP6272 is offered in RoHS compliant,
“green”/halogen free 5-pin TO-252 and 8-pin
exposed pad SOIC packages.
APPLICATIONS
 Networking Equipments
 RF Circuitry Power Supplies
 Set-top box Equipments
 Portable Equipments
FEATURES
 Guaranteed 2A Output Current
 Low 550mV Dropout at 3.3V/2A
 1.8V to 6V Single Input Voltage Range
 Fixed 5V and Adjustable Output Voltage
 ±2% Output Voltage Accuracy
 30µA Quiescent Current
 Power Good and Enable Functions
 70dB Power Supply Rejection Ratio
 Low Output Noise
 0.01µA Shutdown Current
 Current Limit and Thermal Protection
 RoHS compliant “Green”/Halogen Free
5-pin TO-252 and 8-pin Exposed pad
SOIC Packages
TYPICAL APPLICATION DIAGRAM
Fig. 1: XRP6272 Application Diagram
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. [phone] – Fax. [phone]