LND2931-8.5

DATA SHEET LND2931 100mA Low Dropout Voltage Regulator GENERAL DESCRIPTION This series of fixed-voltage and adjustable monolithic micropower voltage regulators is designed for a wide range of applications. This device is an excellent choice for use in batterypowered application. Furthermore, the quiescent current increases only slightly at dropout, which prolongs battery life. This series of fixed-voltage ( Typ. 60mV at light load and 300mV at 100mV) includes a tight initial tolerance of 0.5% typ., extremely good load and line regulation of 0.05% typ., and very low output temperature coefficient. This series of fixedvoltage and adjustable regulators is offered in 3pin TO-92 package (TO-220-5, SO-8 for LND2931) compatible with other fixed-voltage regulators. FEATURES • • • • • • • • • 3- terminal regulators ( To-220-5, SO-8 for LND2931) 100mA output within 2% over temperature Very low quiescent current Low dropout voltage (300mV Typ) Extremely tight load and line regulation Very low temperature coefficient Current and thermal limiting Unregulated DC input can withstand –20V reverse battery and +60V positive transients Direct replacement for National LM2931 fixed series, but has lower ground current, higher accuracy of output voltage and extremely tight load and line regulation. For adjust model LND2931 see typical applications on figure 2. PIN CONFIGURATION APPLICATIONS • • • • • • • High-efficiency linear regulators Battery powered systems Portable/Palm top/ Notebook Computers Portable consumer equipment Portable instrumentation Automotive Electronics SMPS Post Regulator Output GND GND Feedback 1 2 LND2931 8 7 6 5 Input GND GND Shutdown 3 4 • Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 • www.lineardimensions.com • LND2931 ABSOLUTE MAXIMUM RATINGS Power Dissipation Lead Temperature(Soldering, 5 seconds) Storage Temperature Range Operating Junction Temperature Range Input Supply Voltage Internally Limited 260ºC -65ºC to +150ºC -55ºC to +150ºC -20V to +35V DEVICE SELECTION GUIDE Vout , VOLTS 3.3V* 5.0V 8.0V 8.5V 9.0V 10.0V 12.0V 15.0V 3.0v to 24V Device LND2931-3.3 LND2931-5.0 LND2931-8.0 LND2931-8.5 LND2931-9.0 LND2931-10 LND2931-12 LND2931-15 LND2931 * Other fixed versions are also available, VOUT =2.0V to 5.0V. Please consult for more information. OUTPUT OUTPUT GND INPUT GND INPUT TO-220 (Top View) TO-92 (Bottom View) • Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel 312.321.1810 • fax 312.321.1830 • www.lineardimensions.com • LND2931 ELECTRICAL CHARACTERISTICS (TJ =25ºC, IO =100µA, VIN =14V (for 2931-15, VIN =16V), CO =100µF; unless otherwise noted) PARAMETER Output Voltage (Fixed Model) Output Voltage (Fixed Model) Input Supply Voltage Output Voltage Temperature Coefficient Line Regulation (Note 2) Load Regulation(Note 2) Dropout Voltage(Note 4) Ground Current (Note 5) Dropout Ground Current (Note 5) Current Limit Thermal Regulation(Note6) Output Noise, 10Hz to 100KHz IL = 100mA Ripple Rejection Ratio CONDITIONS -25º C≤TJ≤ 85ºC Full Operating Temperature 100µA≤IL≤ 100mA, TJ≤Tjmax MIN 0.985 |VO| 0.98 |VO| 0.975 |VO| TYP VO VO MAX 1.015|VO| 1.02 |VO| 1.025 |VO| 26 (Note 1) 13V ≤ Vin ≤ 26V (Note 3) 1mA≤ IL ≤ 100mA IL =10mA IL =100mA IL =100µA IL =10mA IL =100mA Vin=Vout -0.5V , IL =100µA Vout=0 CL=2.2µF CL=3.3µF CL=33µF IO =10mA,f=120Hz,Co=100µF, Vin=Vo+3V+2Vpp 60 50 0.1 0.1 60 300 100 0.9 8 110 160 0.05 500 350 120 150 0.4 0.3 200 600 150 1.5 12 170 200 0.2 ppm/ºC % % mV µA mA mA µA mA %/W µV RMS V UNITS dB TO-220-5, SO-8 Versions Only Reference Voltage Reference Voltage Over Temperature (note 7) Feedback Pin Bias Current Reference Voltage (Note 1) Temperature Coefficient Feedback Pin Bias Current Temperature Coefficient Shutdown Input Low(Regulator ON) Input Logic Voltage High (Regulator OFF) VS = 2.4V Shutdown Pin Input Current VS = 26V (Note 8) Regulator Output Current in Shutdown 5.0V ≤Vout