100mA Adjustable Positive Voltage Regulator LA317L 100mA Adustable Positive Voltage Regulator General Description • The LA317L is an adjustable 3-terminal positive voltage regulator capable of supplying 100mA over a 1.2V to 12V output range. This voltage regulator is exceptionally easy to use and requires only tow external resistors to set the output voltage. TO-92 SOP-8 • The LA317L is available in standard TO-92 and SOP-8 packages. Features • • • • • • • • • Applications Adjustable output down to 1.2V Guaranteed 100mA output current Output short circuit protected Line regulation: 0.01%/V Load regulation: 0.1% Constant current limit over temperature Standard 3-lead transistor package Input ripple rejection: 70dB RoHS Compliance • • • • High Efficiency Linear Regulators Post Regulation for Switching Supplies Microprocessor Power Supply Mother Board I/O Power Supply Ordering Information TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com Tel: Fax: (800)-TAITRON (800)-824-8766 (800)-TAITFAX (800)-824-8329 (661)-257-6060 (661)-257-6415 Rev. A/DX 2007-06-04 Page 1 of 9 100mA Adjustable Positive Voltage Regulator LA317L Pin Configuration Outline: Z TO-92 Outline: S8 SOP-8 Block Diagram Rev. A/DX 2007-06-04 www.taitroncomponents.com Page 2 of 9 100mA Adjustable Positive Voltage Regulator LA317L Absolute Maximum Ratings (Ta=25° C, unless otherwise specified) Symbol Description Ratings Unit VIN-VOUT IO Input - Output Voltage Differential Max. Output Current 40 100 V mA TJ Operating Junction Temperature 150 °C TOPR TSTG Operating Temperature Range Storage Temperature Range -20 ~ 85 -65 ~ 150 °C °C PD Power Dissipation 700 mW TLEAD Lead Temperature (Soldering, 4sec.) 260 °C Electrical Characteristics (VIN-VOUT=5V, IOUT=40mA,PD≤625mW, 0ºC ≤TJ≤125ºC, unless otherwise specified) Symbol Description LA317L Min. Typ. Max. - 0.01 0.04 Load Regulation - 0.02 0.07 - 0.1 0.5 % - 0.3 1.5 % 5mA≤IOUT≤101mA (Note) 0.04 0.2 %/V Thermal Regulation IADJ Conditions TJ=25°, 3V≤VIN-VOUT≤15V, IOUT≤20mA (Note) 3V≤VIN-VOUT≤15V, IOUT≤20mA (Note) TJ=25°, 5mA≤IOUT≤100mA (Note) ∆VOUT/VOUT Line Regulation ∆VOUT Unit %/W TJ=25°, 10ms Pulse Adjustable Pin Current - 50 100 µA ∆IADJ Adjustable Pin Current Change - 0.2 5 µA VREF Reference Input Voltage 1.20 1.25 1.30 V ILIMIT Current Limit 100 200 300 mA 3V≤VIN-VOUT≤13V IL(MIN) Minimum Load Current for Regulation - 3.5 5 mA 3V≤VIN-VOUT≤13V PSRR Ripple Rejection - 62 - 60 70 - - 0.65 - - Temperature Stability dB % 3V≤VIN-VOUT≤15V, 5mA≤IOUT≤100mA 3V≤VIN-VOUT≤15V, 5mA≤IOUT≤100mA VOUT=10V, f=120Hz, CADJ=0µF VOUT=10V, f=120Hz, CADJ=10µF 0° C ≤TJ≤125° C Rev. A/DX 2007-06-04 www.taitroncomponents.com Page 3 of 9 100mA Adjustable Positive Voltage Regulator LA317L Symbol Description LA317L Min. Typ. Max. Unit Conditions - Long Term Stability - 0.3 - % TJ=125° C, 1000 Hours - RMS Output Noise (% of VOUT) - 0.003 - % TJ=125° C, 10Hz≤f≤10KHz - Thermal Resistance Junction to Case - 185 - - 175 - TO-92 ° C/W SOP-8 Note: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specification of thermal regulation. Typical Characteristics Curves Fig.2- Output Voltage vs. Input Voltage Output Voltage (V) Output Voltage Deviation (V) Fig.1- Load Regulation vs. Temperature Input Voltage (V) Temperature (° C) Fig.4- Adjust Pin Current vs. Temperature Reference Voltage (V) Adjust Pin Current (μA) Fig.3- Reference Voltage vs. Temperature Temperature (° C) Temperature (° C) Rev. A/DX 2007-06-04 www.taitroncomponents.com Page 4 of 9 100mA Adjustable Positive Voltage Regulator LA317L Typical Characteristics Curves (Continued) Fig.6- Minimum Operating Current Quiescent Current (mA) Input-Output Differential (V) Fig.5- Dropout Voltage vs. Temperature Input-Output Differential (V) Temperature (° C) Fig.8- Ripple Rejection vs. Frequency Ripple Rejection (dB) Ripple Rejection (dB) Fig.7- Ripple Rejection vs. Output Voltage Output Voltage (V) Frequency (Hz) Rev. A/DX 2007-06-04 www.taitroncomponents.com Page 5 of 9 100mA Adjustable Positive Voltage Regulator LA317L Typical Characteristics Curves (Continued) ΔVOUT (200mV/Div) Fig.10- Line Transient Response (Conditions: VIN=10.25 to 11.25V, IOUT=40mA, VOUT=5.25V, CIN=0.1μF, COUT=1μF, TA=25℃) Time (200μs/Div) ΔVIN (0.5V/Div) IOUT (50mA/Div) ΔVOUT (200mV/Div) Fig.9- Load Transient Response (Conditions: VIN=10.25V, VOUT=5.25V, CIN=0.1μF, COUT=1μF, TA=25℃) Time (200μs/Div) Typical Application Fig.11- 5V Logic Regulator with Electronic Shutdown (Minimum output=1.2V) Fig.12- Adjustable Regulator with Improved Ripple Rejection Note: Discharge C1 if output is shorted to ground Rev. A/DX 2007-06-04 www.taitroncomponents.com Page 6 of 9 100mA Adjustable Positive Voltage Regulator LA317L Typical Application (Continued) Fig.13- Slow Turn-on 15V Regulator Dimensions in mm (inches) TO-92 Rev. A/DX 2007-06-04 www.taitroncomponents.com Page 7 of 9 100mA Adjustable Positive Voltage Regulator LA317L Dimensions in mm (inches) (Continued) SOP-8 Rev. A/DX 2007-06-04 www.taitroncomponents.com Page 8 of 9 100mA Adjustable Positive Voltage Regulator LA317L How to contact us: US HEADQUARTERS 28040 WEST HARRISON PARKAWAY, VALENCIA, CA 91355-4162 Tel: (800) TAITRON (800) 824-8766 (661) 257-6060 Fax: (800) TAITFAX (800) 824-8329 (661) 257-6415 Email: [email protected] Http://www.taitroncomponents.com TAITRON COMPONENTS MEXICO, S.A .DE C.V. BOULEVARD CENTRAL 5000 INTERIOR 5 PARQUE INDUSTRIAL ATITALAQUIA, HIDALGO C.P. 42970 MEXICO Tel: +52-55-5560-1519 Fax: +52-55-5560-2190 TAITRON COMPONETS INCORPORATED E REPRESENTAÇÕES DO BRASIL LTDA RUA DOMINGOS DE MORAIS, 2777, 2.ANDAR, SALA 24 SAÚDE - SÃO PAULO-SP 04035-001 BRAZIL Tel: +55-11-5574-7949 Fax: +55-11-5572-0052 TAITRON COMPONETS INCORPORATED, SHANGHAI REPRESENTATIVE OFFICE CROSS REGION PLAZA, 899 LINGLING ROAD, SUITE 18C, SHANGHAI, 200030, CHINA Tel: +86-21-5424-9942 Fax: +86-21-5424-9931 Rev. A/DX 2007-06-04 www.taitroncomponents.com Page 9 of 9