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DATA SHEET
LND1117
800mA Low Dropout Voltage Regulator
GENERAL DESCRIPTION
The LND1117 series of positive adjustable and fixed regulators are designed to provide 800mA with higher efficiency than currently available devices. All internal circuitry is designed to operate down to 700 mV 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 LND1117 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 800mA Low Dropout 700mV at 800mA output current 0.015% Line Regulation 0.01% Load Regulation 100% Thermal limit Burn-In Fast Transient Response Remote Sense
TYPICAL APPLICATION DATA
2.5 V, 800mA Regulator
APPLICATIONS
• • •
High Efficiency Linear Regulators Post Regulators for Switching Supplies Adjustable Power Supply
VOUT = VREF (1+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 •
LND1117
PACKAGE INFORMATION
3 LEAD TO –220 (Front view)
VIN VOUT ADJ/GND
5 LEAD TO –220 (Front View)
Vpower Vcontrol OUTPUT ADJ/GND SENSE
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
0 to 125 0 to 150 -65 to 150 300
ºC
TSTG TLEAD
DEVICE SELECTION GUIDE (note 1)
DEVICE LND1117 LND1117-1.5 LND1117-2.5 LND1117-2.85 LND1117-3.0 LND1117-3.3 LND1117-3.5 LND1117-5.0 Note 1: Other fixed versions are available Vout=1.5V to 5.0V OUTPUT VOLTAGE Adj. 1.5V 2.5V 2.85V 3.0V 3.3V 3.5V 5.0V
• Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 • www.lineardimensions.com •
LND1117
ELECTRICAL CHARACTERISTICS
Parameter
Reference Voltage
Device
LND1117 LND1117-1.5
Test Conditions
Vcontrol=2.75V, Vpower=2V,I load=10mA Vcontrol=2.7V to 12V Vpower=3.3V to 5.5V, Iload=10mA to 800mA Vcontrol=4V, Vpower=2V Vcontrol=3V,Vpower2.3, Iload= 0mA to 800mA Vcontrol=5V, Vpower=3.3V Vcontrol=4V, Vpower 3.3, I load= 0mA to 800mA Vcontrol=5.35V, Vpower=3.35V Vcontrol=4.4V, Vpower3.7, I load= 0mA to 800mA Vcontrol=5.5V, Vpower=3.5V Vcontrol=4.5V, Vpower3.8 I load= 0mA to 800mA Vcontrol=5.8V, Vpower=3.8V Vcontrol=4.8V, Vpower4.1, I load= 0mA to 800mA Vcontrol=6V, Vpower=4V Vcontrol=6.5V, Vpower5.8, I load= 0mA to 800mA Vcontrol=7.5V, Vpower=5.5V Vcontrol=6.5V, Vpower5.8, I load= 0mA to 800mA *
Min
1.238 1.230 * 1.485 1.475 2.475 2.460 2.821 2.805 2.970 2.950 3.267 3.247 3.465 3.445 4.950 4.920
Typ
1.250 1.250 1.500 1.500 2.500 2.500 2.850 2.850 3.000 3.000 3.300 3.300 3.500 3.500 5.000 5.000 0.04 0.08 1.7
Max
1.262
Units
V
1.270 1.515 1.525 2.525 2.540 2.879 2.895 3.030 3.050 3.333 3.353 3.535 3.555 5.050 5.080 0.20 0.40 5 V
LND1117-2.5
*
V
LND11172.85 LND1117-3.0 Output Voltage LND1117-3.5
*
V
*
V
*
V
LND1117-5.0
*
V
* * * *
V % % mA mA
Line Regulation Load Regulation Minimum Load Current(Note 2) Control Pin Current (Note 3) Ground Pin Current Adjust Pin Current Current Limit Ripple Rejection
All All LND1117
Iload=10mA(1.5V+Vout)
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