SN317LF

SN317Lx [100mA /Adjustable Output] Positive Voltage Regulator Semiconductor http:// www.auk.co.kr Description The SN317Lx is an adjustable 3-terminal positive voltage regulator capable of supplying in excess of 100mA over an output voltage range of 1.2 V to 37 V. This voltage regulator is exceptionally easy to use and requires only two external resistors to set the output voltage. Further, it employs internal current limiting, thermal shutdown and safe area compensation, making it essentially blow-out proof. This device can also be used to make a programmable output TO-92 regulator, or by connecting a fixed resistor between the adjustment and output, the SN317Lx can be used as a precision current regulator. Application ◈ Consumer and personal electronics ◈ SMPS post-regulator / dc-to-dc modules ◈ High-efficiency linear power supplies ◈ LED Light Constant Current Controllers SOT-89 Features and Benefits ◈ Output Current up to 100mA ORDERING INFORMATION Product SN317L SN317LF Marking N317L N317L Package TO-92 SOT-89 ◈ Output Adjustable Level : 1.2V to 37V ◈ Built in OVP, CLP circuit. ◈ Built in TSD Protection. ◈ Output Transistor Safe Area Protection. ◈ Ultra High level of ESD [ Built in ESD Protection Cell ] Equivalent Circuit VIN(3) ▲ Marking Detail Information N317L(①) GYWW (②) Voltage Reference + – OVP / OCP / ESD Protection Circuitry ① Device Code ② Grade & Year & Week Code R Limit VOUT(2) Adj(1) KSD-I5B009-000 December, 2010 REV. 00 1 SN317Lx ◈ Pin Configuration 1 2 3 1 2 3 TO-92 1: Adj 2: VOUT 3: VIN SOT-89 1: Adj 2: VOUT 3: VIN ◈ Standard Application Ci is required if regulator is located an appreciable distance from power supply filter. Co is not needed for stability, however, it is necessary to improve transient response. Since IAdj is controlled to less than 0.1mA, the error associated with this term is insignificant in most applications. VOUT = Vref(1.25V) ×( 1+R2/R1)+IadjR2 KSD-I5B009-000 December, 2010 REV. 00 2 SN317Lx ◈ Absolute Maximum Ratings ( Ta = 25℃ ) Parameter Symbol Limits Unit Input-Output Voltage Differential TO-92 Power Dissipation SOT-89 VI-VO 40 V Pd Internally Limited mW Junction Temperature TJ 150 ℃ Operate Temperature Range Topr 0 ~ +125 ℃ Storage Temperature Range Tstg -55 ~ +150 ℃ Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the recommended operating conditions is not implied. Extended exposure to Stresses above the Recommended Operating Conditions may affect device reliability. The maximum allowable power dissipation is a function of the maximum junction temperature, TJ(max) , the junction-to-ambient thermal resistance, θJA, and the ambient temperature, TA. The maximum allowable power dissipation at any ambient temperature is calculated using: PD(max) = (TJ(max) – TA) ÷ θJA. Exceeding the maximum allowable power dissipation will result in excessive die temperature, and the regulator will go into thermal shutdown. KSD-I5B009-000 December, 2010 REV. 00 3 SN317Lx ◈ Electrical characteristics ( VI-VO=5V, IO = 40mA, TJ=0℃~125℃, PDMAX=625mW ; unless otherwise specified ) SN317Lx Characteristic Symbol Test Condition* Min. 3.0V ≤ VI-VO ≤ 40V Line Regulation * VO(Line) 3.0V ≤ VI-VO ≤ 40V 10mA ≤ IO ≤ 100mA TA=+25℃ 10mA ≤ IO ≤ 100mA TA=0~+125℃ 3.0V ≤ VI-VO ≤ 40V 10mA ≤ IO ≤ 100mA, PD≤PDMAX 3.0V ≤ VI-VO ≤ 40V 10mA ≤ IO ≤ IMAX , PD ≤ PDMAX 0℃ ≤ Tj ≤ 125℃ VO =10V, f=120Hz without CADJ Ripple Rejection RR VO =10V, f=120Hz, CADJ = 10uF ** Output Noise Voltage Minimum Load Current to VNO 10Hz ≤ f ≤ 100kHz TA =25℃ 80.0 0.003 % TA=0~+125℃ VO < 5V VO ≥ 5V VO < 5V VO ≥ 5V 0.02 5.0 0.1 20.0 0.3 50 0.07 25.0 0.5 70.0 1.5 100 mV % / VO mV % / VO uA TA=+25℃ Typ. 0.01 Max. 0.04 %/V Unit Load Regulation * VO(Load) Adjustable Pin Current IADJ ∆IADJ VREF STT Adjustable Pin Current Change - 2.0 5.0 uA Reference Voltage Temperature Stability 1.20 - 1.25 1.0 65.0 1.30 - V % / VO ㏈ Maintain Regulation IL(MIN) VI-VO = 40V - 3.5 10.0 mA VI-VO ≤ 15V, PD ≤ PMAX Maximum Output Current IO(MAX) VI-VO ≤ 40V, PD ≤ PMAX Long-Term Stability ST TA = +25℃ for end point measurements, 1000HR TA =25℃ 100 25 - 200 50 0.3 mA % Load and line regulation are specified at constant temperature. Change in VO due to heating effects must be taken into account separately. ** CADJ is connected between the adjustable pin and ground. * KSD-I5B009-000 December, 2010 REV. 00 4 SN317Lx Fig.1 Adjustable Pin Current vs. Junction Temperature 70 Fig.2 Output Peak Current vs. Input to Output Differential 0.6 Adjustable Pin Current [uA] 60 50 40 30 20 10 -40 0 25 50 75 100 125 Output peak Current [A] 0.5 0.4 0.3 0.2 0.1 0.0 VIN=4.25V VOUT=1.25V IOUT=5mA 0 5 10 15 20 25 30 35 Junction Temperature [℃] Input to Output Differential [V] Fig.3 Output Voltage vs. Junction Temperature 1.27 Fig.4 Dropout Voltage vs. Input Voltage 2.8 2.6 VO=100mV Reference Voltage [V] Dropout Voltage [V] 1.26 2.4 2.2 2.0 1.8 1.6 IO=50mA 1.4 1.2 1.0 -40 IO=100mA 1.25 1.24 1.23 -40 0 25 50 75 100 125 150 0 Junction Temperature [℃] Junction Temperature [℃] 25 50 75 100 125 150 Fig.5 Line Transient Response Output Voltage Deviation [mV] Output Voltage Deviation [mV] Input Voltage Fig.6 Load Transient Response Fixed 10V 20V 0.1A Load Current Fixed 10V 15V 0A Output Voltage Deviation Output Voltage Deviation 50 0.0 -50 CIN=0.1uF, COUT=1.0uF Iout=40mA, Ta=25℃ 100 0 -100 CIN=0.1uF, COUT=1.0uF VIN=15V, Ta=25℃ 0 20 40 60 80 100 120 140 0 20 40 60 80 100 120 140 Time [us] Time [us] KSD-I5B009-000 December, 2010 REV. 00 5 SN317Lx ◈ TO-92 Outline Dimension (Unit : mm) KSD-I5B009-000 December, 2010 REV. 00 6 SN317Lx ◈ SOT-89 Outline Dimension (Unit : mm) ※ Recommend PCB solder land [Unit: mm] KSD-I5B009-000 December, 2010 REV. 00 7 SN317Lx The AUK Corp. products are intended for the use as components in general electronic equipment (Office and communication equipment, measuring equipment, home appliance, etc.). Please make sure that you consult with us before you use these AUK Corp. products in equipments which require high quality and / or reliability, and in equipments which could have major impact to the welfare of human life(atomic energy control, airplane, spaceship, transportation, combustion control, all types of safety device, etc.). AUK Corp. cannot accept liability to any damage which may occur in case these AUK Corp. products were used in the mentioned equipments without prior consultation with AUK Corp.. Specifications mentioned in this publication are subject to change without notice. 8 KSD-I5B009-000 December, 2010 REV. 00