SN317MPI

SN317Mx [ 0.5 A Adjustable Output ] Positive Voltage Regulator Semiconductor http:// www.auk.co.kr Description The SN317 is an adjustable 3-terminal positive voltage regulator capable of supplying in excess of 0.5A 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-252-3L regulator, or by connecting a fixed resistor between the adjustment and output, the SN317 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 TO-220F-3L Features and Benefits ◈ Output Current up to 0.5A ORDERING INFORMATION Product SN317MPI SN317MD Marking SN317MPI SN317MD Package TO-220F-3L TO-252-3L ◈ 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 AUK(①) + G△YWW (②) SN317MPI (③) ① AUK Logo ② Grade & M Code & Year & Week Code ③ Device Code Voltage Reference – OVP / OCP / ESD Protection Circuitry R Limit VOUT(2) Adj(1) KSD-I0O010-000 October, 2010 REV. 00 1 SN317Mx ◈ Pin Configuration 4 1 2 3 1 2 3 TO-252-3L 1: Adj. 2: VOUT 3: VIN 4: VOUT TO-220F-3L 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-I0O010-000 October, 2010 REV. 00 2 SN317Mx ◈ Absolute Maximum Ratings ( Ta = 25℃ ) Limits Parameter Symbol TO-220F-3L Input-Output Voltage Differential TO-252-3L Power Dissipation TO-220F-3L PD Internally Limited W VI-VO 40 TO-252-3L V Unit Thermal Resistance Junction to Case RΘJC 5.0 5.0 C/W Thermal Resistance Junction to Air RΘJA 65 92 C/W 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-I0O010-000 October, 2010 REV. 00 3 SN317Mx ◈ Electrical characteristics ( VI-VO=5V, IO = 0.1A, TJ=0℃~125℃, PDMAX=7.5W ; unless otherwise specified ) SN317Mx Characteristic Symbol Test Condition* Min. 3.0V ≤ VI-VO ≤ 40V Line Regulation * VO(Line) 3.0V ≤ VI-VO ≤ 40V 10mA ≤ IO ≤ 0.5A TA=+25℃ 10mA ≤ IO ≤ 0.5A TA=0~+125℃ 3.0V ≤ VI-VO ≤ 40V 10mA ≤ IO ≤ 0.5A, PD