LND5203-2.5

DATA SHEET LND5203 3 A Low Dropout Positive Voltage Regulator GENERAL DESCRIPTION The LND5203 series of positive adjustable and fixed regulators are designed to provide 3A with higher efficiency than currently available devices. All internal circuitry are designed to operate down to 700mV input to output differential and the dropout voltage is fully specified as a function of load current. Dropout voltage of the device is 100mV at light loads and rising to 700mV at maximum output current. A second low current input is required to achieve this dropout. The LND5203 can also be used as a single supply device (3-pin version). On-chip trimming adjusts the reference voltage to 1%. FEATURES • • • • • • • • Adjustable or fixed Output Output Current of 3A Low Dropout, 700mV at 3A Output Current 0.04% Line Regulation 0.1% Load Regulation 100% Thermal Limit Burn-In Fast Transient Response Remote Sense TYPICAL APPLICATION DATA 2.5 V, 3A Regulator APPLICATIONS • • • High efficiency Linear Regulators Post Regulators for Switching Supplies Adjustable Power Supply VOUT = VREF (I+R2/R1) +IADJ R2 • Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 • www.lineardimensions.com • LND5203 Package Information 3 LEAD TO –220 (Front view) 5 LEAD TO –220 (Front View) Vpower Vcontrol OUTPUT ADJ/GND SENSE Vin Vout ADJ/GND Absolute Maximum Rating SYMBOL Pd Vin PARAMETER Power Dissipation Input Voltage VPower VControl Operating Junction Temperature range Control Section Power Transistor Storage Temperature Lead Temperature (Soldering, 10 sec) MAXIMUM Internally limited 7 13 UNITS W V TJ TSTG TLEAD 0 to 125 0 to 150 -65 to 150 300 ºC ºC ºC Device Selection Guide (note 1) DEVICE OUTPUT VOLTAGE LND5203 Adj. LND5203-1.5 1.5V LND5203-2.5 2.5V LND5203-2.85 2.85V LND5203-3.0 3.0V LND5203-3.3 3.3V LND5203-3.5 3.5V LND5203-5.0 5.0V Note 1: Other fixed versions are available VOut =1.5v to 5.0V • Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 • www.lineardimensions.com • LND5203 Electrical Characteristics At I load = 0mA and TJ = ± 25 °C unless otherwise specified PARAMETER DEVICE TEST CONDITIONS Vcontrol=2.75V, Vpower= 2V, I Load= 10mA VControl=2.7V to 12 V VPower=3.3V to 5.5V, ILoad=10mA to 3A VControl =4V, V Power =2V VControl=3V, V Power =2.3V,ILoad =0mA to 3A VControl =5V, VPower=3.3V VControl=4V, V Power=3.3V ILoad=0mA to 3A VControl=5.35V, V Power=3.35V VControl=4.4V,V Power=3.7V, I Load=0mA to 3A VControl =5.5V, V Power3.5V VControl=4.5V, V Power 3.8V, ILoad=0mA to 3A VControl=5.8V, V Power=3.8V VControl=4.8V, V Power= 4.1V, ILoad= 0mA to 3A VControl=6V,VPower=4V VControl=5V, VPower=4.3V,ILoad =0mA to 3A VControl=7.5V, VPower=5.5V VControl=6.5V V Power=5.8V, ILoad=0mA to 3 A ILoad=10mA, (1.5V+Vout)