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PDF XR71211 Data sheet ( Hoja de datos )
| Número de pieza | XR71211 | |
| Descripción | 1.5A Ultra Low Dropout Voltage Regulator | |
| Fabricantes | Exar | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de XR71211 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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XR71211
1.5A Ultra Low Dropout Voltage Regulator
General Description
The XR71211 is an ultra low dropout voltage regulator capable of deliver-
ing an output of 1.5Amps. It differentiates from its competitors by being
able to operate from a single supply rail of 1.4V to 2.625V without the need
for a noise generating charge pump or secondary bias rail.
This LDO provides a guaranteed dropout voltage of 250mV at maximum
junction temperature and is ideal for 1.5V to 1.2V and 1.8V to 1.5V conver-
sions. The output voltage can be set as low as 0.6V with +/-0.5% accu-
racy making the XR71211 perfectly suited for powering low voltage
devices such as FPGAs, DSPs, ASICs and other SOCs.
An enable function, soft start and Power Good flag complete the feature
set. Built-in current limit, reverse bias and thermal protection ensures safe
operation under abnormal operating conditions.
The XR71211 is offered in RoHS compliant, “green”/halogen free 10-pin
3x3mm DFN package.
FEATURES
1.5A Output Current
1.4V to 2.625V Single Input Voltage
Adjustable Output Voltage ≥0.6V
±0.5% Output Voltage Accuracy
Ultra Low Dropout Voltage
250mV Max over temp @ 1.5A
Power Good Flag
Enable and Soft Start
Current Limit and Thermal Protection
Reverse Bias Protection
RoHS compliant “Green”/Halogen Free
10-pin 3mm x 3mm DFN
APPLICATIONS
Point of Load Conversion
Microprocessor, DSP and FPGA Supplies
Networking and Telecom Equipment
Switching Supplies Post Regulation
Ordering Information – back page
Typical Application
VIN 1.4V - 2.625V
R4
CIN
PGOOD
R3
Enable
C1
VIN VOUT
XR71211
EN DFN-10 ADJ
PGOOD
GND
VOUT>0.6V
R1
COUT
R2
VOUT, 50mV/Div, AC coupled
24mV overshoot
-20mV undershoot
0.5A-1.5A
IOUT, 1A/Div
40µs/Div
Transient Response
© 2014 Exar Corporation
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exar.com/XR71211
Rev 1B
1 page  
Functional Block Diagram
XR71211
© 2014 Exar Corporation
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exar.com/XR71211
Rev 1B
5 Page 
Mechanical Dimensions
10-Pin DFN
XR71211
© 2014 Exar Corporation
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exar.com/XR71211
Rev 1B
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet XR71211.PDF ] | |
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