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PDF XRP6272 Data sheet ( Hoja de datos )
| Número de pieza | XRP6272 | |
| Descripción | 2A 5V-Adjustable Low Dropout Voltage Regulator | |
| Fabricantes | Exar | |
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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. +1 510 668-7000 – Fax. +1 510 668-7001
1 page  
XRP6272
2A 5V-Adjustable Low Dropout Voltage Regulator
TYPICAL PERFORMANCE CHARACTERISTICS
All data taken at VIN = VOUT + 1V, TJ = TA = 25°C, CIN = 4.7µF, COUT = 4.7µF or 10µF (Note 1) unless otherwise specified.
Fig. 4: GND Current vs. VIN at VOUT=1.8V, No Load
Fig. 5: GND Current vs. VIN at VOUT=3.3V, No Load
Fig. 6: GND Current vs. VIN at VOUT=1.8V, 300mA
Fig. 7: GND Current vs. VIN at VOUT=3.3V, 300mA
Fig. 8: GND Current vs. Temp. at VOUT=1.8V, No Load
Fig. 9: GND Current vs. Temp. at VOUT=3.3V, No Load
© 2011 Exar Corporation
5/13
Rev. 1.2.0
5 Page 
XRP6272
2A 5V-Adjustable Low Dropout Voltage Regulator
PACKAGE SPECIFICATION
TO-252-5L
© 2011 Exar Corporation
11/13
Rev. 1.2.0
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet XRP6272.PDF ] | |
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