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LM137 Arkusz danych(PDF) 4 Page - Linear Technology |
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LM137 Arkusz danych(HTML) 4 Page - Linear Technology |
4 / 12 page LT137A/LM137 LT337A/LM337 4 137afb ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. (Notes 2, 3) SYMBOL PARAMETER CONDITIONS LT337A LM337 UNITS MIN TYP MAX MIN TYP MAX VREF Reference Voltage |VIN – VOUT| = 5V, IOUT = 10mA, Tj = 25°C –1.238 –1.250 –1.262 –1.213 –1.250 –1.287 V 3V ≤ |VIN – VOUT| ≤ 40V 10mA ≤ IOUT ≤ IMAX, P ≤ PMAX l –1.220 –1.250 –1.280 –1.200 –1.250 –1.300 V ΔVOUT ΔIOUT Load Regulation 10mA ≤ IOUT ≤ IMAX, (Notes 4 and 5) Tj = 25°C, |VOUT| ≤ 5V Tj = 25°C, |VOUT| ≥ 5V |VOUT| ≤ 5V |VOUT| ≥ 5V l l 5 0.1 10 0.2 25 0.5 50 1 15 0.3 20 0.3 50 1 70 1.5 mV % mV % ΔVOUT ΔVIN Line Regulation 3V ≤ |VIN – VOUT| ≤ 40V (Note 4) Tj = 25°C l 0.005 0.01 0.01 0.03 0.01 0.02 0.04 0.07 %/V %/V Ripple Rejection VOUT = –10V, f = 120Hz CADJ = 0 CADJ = 10μF l 60 70 66 80 66 60 77 dB dB Thermal Regulation Tj = 25°C, 10ms Pulse 0.002 0.02 0.003 0.04 %/W IADJ Adjust Pin Current l 65 100 65 100 μA ΔIADJ Adjust Pin Current Change 10mA ≤ IOUT ≤ IMAX 3V ≤ |VIN – VOUT| ≤ 40V l l 0.2 1 2 5 0.5 2 5 5 μA μA Minimum Load Current |VIN – VOUT| ≤ 40V |VIN – VOUT| ≤ 10V l l 2.5 1.2 5 3 2.5 1 10 6 mA mA ISC Current Limit |VIN – VOUT| ≤ 15V, K, M and T Package H Package |VIN – VOUT| = 40V, K, M and T Package Tj = 25°C H Package l l 1.5 0.5 0.24 0.15 2.2 0.8 0.5 0.25 1.5 0.5 0.15 0.1 2.2 0.8 0.4 0.17 A A A A ΔVOUT ΔTemp Temperature Stability of Output Voltage (Note 6) l 0.6 1.5 0.6 % ΔVOUT ΔTime Long Term Stability TA = 125°C, 1000 Hours 0.3 1 0.3 1 % en RMS Output Noise (% of VOUT) TA = 25°C, 10Hz ≤ f ≤ 10kHz 0.003 0.003 % θJC Thermal Resistance Junction to Case H Package K Package M and T Package 12 2.3 3 15 3 5 12 2.3 3 15 3 5 °C/W °C/W °C/W Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The shaded electrical specifications indicate those parameters which have been improved or guaranteed test limits provided for the first time. Note 3: Unless otherwise indicated, these specifications apply: |VIN – VOUT| = 5V; and IOUT = 0.1A for the H package, IOUT = 0.5A for the K, M, and T packages. Power dissipation is internally limited. However, these specifications apply for power dissipation up to 2W for the H package and 20W for the K and T packages. IMAX = 1.5A for the K, M, and T packages, and 0.2A for the H package. Note 4: Testing is done using a pulsed low duty cycle technique. See thermal regulation specifications for output changes due to heating effects. Load regulation is measured on the output pin at a point 1/8" below the base of the K and H package and at the junction of the wide and narrow portion of the lead on the M and T package. Note 5: Load regulation for the LT337AT is the same as for LM337T. Note 6: Guaranteed on LT137A and LT337A, but not 100% tested in production. Note 7: ISC is tested at the ambient temperatures of 25°C and –55°C. ISC cannot be tested at the maximum ambient temperature of 150°C due to the high power level required. ISC specification at 150°C ambient is guaranteed by characterization and correlation to 25°C testing. |
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