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XRP6275 Datasheet Preview

XRP6275 Datasheet

3A Ultra Low Dropout Voltage Regulator

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XRP6275
3A Ultra Low Dropout Voltage Regulator
January 2015
GENERAL DESCRIPTION
The XRP6275 is an ultra low dropout voltage
regulator capable of delivering 3A output
currents. It is unique in the industry in being
able to operate from a single supply rail of
1.045V to 2.625V without the need for a noise
generating charge pump.
With its ultra low dropout voltage of 138mV at
full load guaranteed over temperature, the
XRP6275 achieves conversions previously
unavailable.
The output voltage can be set as low as 0.6V
with ±0.5% accuracy making the XRP6275
perfectly suited for powering low voltage
devices such as FPGAs, DSPs, ASICs, and
other SOCs.
Built-in current limit, reverse bias and thermal
protection ensures safe operation under
abnormal operating conditions. An enable
function, soft start and Power Good flag
complete the feature set.
The XRP6275 is offered in RoHS compliant,
“green”/halogen free 10-pin 3x3mm DFN
package.
Rev. 2.0.0
FEATURES
3A Output Current
1.045V to 2.625V Single Input Voltage
Adjustable Output Voltage ≥0.6V
±0.5 Output Voltage Accuracy
Ultra Low Dropout Voltage
138mV Max over temp @ 3A
74mV Max over temp @ 2A
Power Good Flag
Enable & 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
Microprocessors, DSPs, FPGAs Supplies
Networking & Telecom Equipment
Switching Supplies Post Regulation
TYPICAL APPLICATION DIAGRAM
XRP6275
Fig. 1: XRP6275 Application Diagram
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. +1 510 668-7000 – Fax. +1 510 668-7001




Exar

XRP6275 Datasheet Preview

XRP6275 Datasheet

3A Ultra Low Dropout Voltage Regulator

No Preview Available !

XRP6275
3A Ultra Low Dropout Voltage Regulator
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of
the device at these ratings or above any other of those
indicated in the operation sections of the specifications
below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect
reliability.
Input Voltage VIN, VPGOOD ............................................ 3V
Enable Voltage VEN .................................... VIN+0.5V≤3V
Storage Temperature .............................. -65°C to 150°C
Junction Temperature .......................................... 150°C
Lead Temperature (Soldering, 5 sec) ..................... 260°C
ESD Rating (HBM - Human Body Model) .................... 2kV
ESD Rating (CDM – Charged Device Model) .............. 1kV
OPERATING RATINGS
Input Voltage Range VIN, VEN, VPGOOD........... 1.045V-2.625V
Junction Temperature Range ....................-40°C to 125°C
Thermal Resistance ΘJC DFN10.............................. 6°C/W
Thermal Resistance ΘJA DFN10..........................40.5°C/W
ELECTRICAL SPECIFICATIONS
Specifications are for an Operating Junction Temperature of TJ = TA = 25°C only; limits applying over the full Operating
Junction Temperature range are denoted by a “•”. Typical values represent the most likely parametric norm at TJ = 25°C,
and are provided for reference purposes only. Unless otherwise indicated, VIN = VOUT + 0.5V and IOUT=20mA, CIN = 47µF,
COUT = 47µF, TA= 25°C.
Parameter
Input Voltage Operating Range
Maximum Output Current1
Min.
1.045
3
Ground Current
Shutdown Current
ADJ Pin Voltage
598.5
594.0
597.0
592.0
596.0
590.7
Dropout Voltage
Output Voltage Load
Regulation
Power Supply Rejection Ratio
(PSRR)
Output Noise Voltage
Current Limit
Reverse Bias Protection
VOUT Leakage current
Thermal Shutdown
Temperature
Thermal Shutdown Hysteresis
Start Up time
Power Good Threshold
Power Good Threshold
Hysteresis
3.3
92
PGOOD Output Low
Typ.
2.0
2.5
12
601.5
600.0
599.0
35
30
200
-10
160
30
2
94
2.8
Max.
2.625
6.0
604.5
606.0
603.0
605.0
602.0
604.0
138
74
0.25
4.7
Units
V
A
mA
mA
µA
mV
mV
mV
mV
mV
mV
mV
mV
%
dB
dB
µVRMS
A
µA
Conditions
EN active
EN active , IOUT=3A
VEN=0V, IOUT=0mA, PGOOD Floating
VIN=2.5V, VOUT>1V
VIN=1.8V
VIN=1.35V
• IOUT=3A, VOUT=1.0V (Note 2)
• IOUT=2A, VOUT=1.35V (Note 2)
VIN=VOUT + 0.5V, 20mA≤IOUT ≤3A
f=1kHz
f>300kHz
10Hz-100kHz
VOUT = 0.9 × VOUT(NOM)
VIN=0V, VOUT=2.625V
°C
°C
ms VOUT=1.0V
97 % of VOUT • VOUT rising
% of VOUT
VOUT falling
0.4 V • VIN>1.5V, ISINK=1mA
0.4 V • VIN>1.045V, ISINK=100uA
© 2015 Exar Corporation
2/11
Rev. 2.0.0


Part Number XRP6275
Description 3A Ultra Low Dropout Voltage Regulator
Maker Exar
Total Page 11 Pages
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