XRP6274EHTR-F

XRP6274 2A Ultra Low Dropout Voltage Regulator January 2014 Rev. 1.0.1 GENERAL DESCRIPTION FEATURES • 2A Output Current The XRP6274 is an ultra low dropout voltage regulator capable of delivering 2A 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. • 1.045V to 2.625V Single Input Voltage − Adjustable Output Voltage ≥0.6V − ±0.5% Output Voltage Accuracy • Ultra Low Dropout Voltage With its ultra low dropout voltage of 140mV at full load guaranteed over temperature, the XRP6274 achieves conversions previously unavailable. − 140mV Max over temp @ 2A • Power Good Flag • Enable & Soft Start The output voltage can be set as low as 0.6V with ±0.5% accuracy making the XRP6274 perfectly suited for powering low voltage devices such as FPGAs, DSPs, ASICs, and other SOCs. • Current Limit and Thermal Protection • Reverse Bias Protection • RoHS compliant “Green”/Halogen Free − 10-pin 3mm x 3mm DFN 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. APPLICATIONS • Point of Load Conversion • Microprocessors, DSPs, FPGAs Supplies The XRP6274 is offered in RoHS compliant, “green”/halogen free 10-pin 3x3mm DFN package. • Networking & Telecom Equipment • Switching Supplies Post Regulation TYPICAL APPLICATION DIAGRAM VIN 1.045V-2.625V R4 CIN PGOOD Enable R3 EN VOUT>0.6V VOUT VIN XRP6274/5 XRP6274 DFN-10 R1 ADJ COUT C1 PGOOD GND R2 Fig. 1: XRP6274 Application Diagram Exar Corporation 48720 Kato Road, Fremont CA 94538, USA www.exar.com Tel. +1 510 668-7000 – Fax. +1 510 668-7001 XRP6274 2A Ultra Low Dropout Voltage Regulator ABSOLUTE MAXIMUM RATINGS OPERATING 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 Range VIN, VEN, VPGOOD ........... 1.045V-2.625V Junction Temperature Range ....................-40°C to 125°C Thermal Resistance ϴJA DFN10 ..........................40.5°C/W 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) .......................... All pins ............................................................... 2kV 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 Min. Input Voltage Operating Range 1.045 Maximum Output Current1 Units 2.625 V 2.5 598.5 594.0 597.0 592.0 596.0 590.7 12 601.5 600.0 599.0 Dropout Voltage Output Voltage Load Regulation Power Supply Rejection Ratio (PSRR) Output Noise Voltage mA EN active , IOUT=2 VEN=0V, IOUT=0mA, PGOOD Floating 604.5 606.0 603.0 605.0 602.0 604.0 140 µA mV mV mV mV mV mV mV 0.25 % IOUT=2A, VOUT=1.0V (Note 2) VIN=VOUT + 0.5V, 20mA≤IOUT ≤2A f=1kHz µVRMS 4.4 A 160 °C © 2014 Exar Corporation VIN=1.35V f>300kHz Thermal Shutdown Temperature PGOOD Output Low • • VIN=1.8V dB µA Power Good Threshold Hysteresis • VIN=2.5V, VOUT>1V dB -10 92 • 35 Reverse Bias Protection VOUT Leakage current Power Good Threshold EN active mA 30 2.1 Start Up time • 6.0 200 Thermal Shutdown Hysteresis Conditions A 2.0 Shutdown Current Current Limit Max. 2 Ground Current ADJ Pin Voltage Typ. 30 °C 2 ms 94 97 % of VOUT 10Hz-100kHz • VIN=0V, VOUT=2.625V VOUT=1.0V • % of VOUT 2.8 VOUT = 0.9 × VOUT(NOM) VOUT rising VOUT falling 0.4 V • VIN>1.5V, ISINK=1mA 0.4 V • VIN>1.045V, ISINK=100uA 2/11 Rev. 1.0.1 XRP6274 2A Ultra Low Dropout Voltage Regulator Parameter Min. Typ. Max. 0.43 0.55 0.67 Units Conditions Enable Pin Specifications Enable Threshold Voltage EN Sink Current Maximum Allowable EN Sink Current EN Source Current V • VEN rising 2.5 uA EN