LY WY FEATURES 50V Operation Guaranteed 1% Initial Voltage Tolerance Guaranteed 0.01% /V Line Regulation Guaranteed 0.5% Load Regulation Guaranteed 0.02% /W Thermal Regulation 100% Burn-in in Thermal Limit APPLICATIONS w Adjustable Power Supplies = System Power Supplies = Precision Voltage/Current Regulators w On-Card Regulators LT137AHV/LT337AHV LM137HV/LM337HV High Voltage Negative Adjustable Regulators DESCRIPTION The LT137AHV/LM137HV negative high voltage ad- justable regulators will deliver up to 1.5 Amps output Current over an output voltage range of 1.2V to 47V. Linear Technology has made significant im- provements in these regulators compared to previous devices, such as better line and load regulation, and a maxium output voltage error of 1% for the LT137AHV and LT337AHV. Every effort has been made to make these devices easy to use and difficult to damage. Internal current and power limiting coupled with true thermal limiting prevents device damage due to overloads or shorts, even if the regulator is not fastened to a heat sink. Maximum reliability is attained with Linear Technologys advanced processing techniques combined with a 100% burn-in in the thermal limit mode. This assures that all device protection circuits are working and eliminates field failures experienced with other regulators that receive only standard electrical testing. For performance curves and applications circuits see the LT137A series data sheet. Negative Regulator I _F I 5uF SOLID TANTALUM uF R1 SOLID TANTALUM ADL Vin Vout LT137ARV Vin Nour _ Re= Ri (so8v ~Vout = 1.25V ( 1 Worst Case Output Voltage Error @ Ty =25C oot ns LY} a LM337HV 1% RESISTORS LM337HV 2% R2 , LT337AnV | at! % UTa37AHV OUTPUT VOLTAGE ERROR (PERCENT) oer NY We or nn & 2 4 6810 20 QUTPUT VOLTAGE 40 60 100 LY Wine 4-165LT137AHV/LT337AHV LM137HV/LM337HV ABSOLUTE MAXIMUM RATINGS PACKAGE/ORDER INFORMATION Power Dissipation ..... ees sree Internally Limited nOTTOM view ORDER | eorrowwew ORDER Input to Output Voltage Differential............. 50V PART NO 1 PART NO Operating Junction Temperature Range ADJ LT137AHV/LM137HV........... ~55C to 150C LT137AHVK vor LT137AHVH LT337AHV/LM337HV...........-- 0C to 125C LTS37AHVK)\ 5g 5-4 w LISS7AHVH Storage Temperature Range case sia LMISZHVK | case sour SS HVE LT137AHV/LM137HV........... 65C 10 150C | xmncxase | LMS 87HVKT cscs LT337AHV/LM337HV........... 65C to 150C Lead Temperature (Soldering, 10sec.)........ 300C 100% THERMAL LIMIT BURN-IN nS ELECTRICAL CHARACTERISTICS (see note 1) LT137AHV LM137HV SYMBOL _| PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS Veer Reference Voltage lVivYour| = 5, lour = 10mA, oe T, = 25C 1,225 1.250 1.275 Vv 3V < Vin Voyr| < 50V TOMA lout < Imax. P < Paax e 1.200 1.250 1.300 Vv AVout Load Regulation 10mA < lout < Imax, (See Note 2) Mout T, = 25C, |Vour] < 5V 15 25 mV T, = 25C, |Vour] = 5V 03 05 % lVour| < 5V 20 50 mV |Vour| = 5V 0.3 1.0 % Wout Line Regulation 3V < [Vin Vourl < 50V (See AVin Note 2) T, = 25C 0.01 0.02 %/V 0.02 0.05 %/V Ripple Rejection Vour = 10V, f = 120Hz Caos = 0 60 dB Cap) = 10uF 66 77 dB Thermal Regulation T, = 25C, T=2ms to 12ms 0.002 0.02 0.002 0.02 %/W laps Adjust Pin Current e 65 100 65 100 uA Maps Adjust Pin Current Change 10MA < lout < Imax e 02 2 05 5 pA 2.5V < [Vin Vourl < SOV e 2 6 3 6 uA Minimum Load Current Vin Vout] < 50V e 2.5 5.0 2.5 5.0 mA Vin Vourl < 10V e 12 3.0 123.0 mA Ise Current Limit Vin _- Vourl 13V K Package @; 15 2.2 3.2 1.5 2.2 3.2 A H Package @| 05 0.8 1.6 0.5 0.8 1.6 A Min > Vourl = S0V K Package 0.2 0.4 0.8 0.2 0.4 0.8 A T, = 25C ' H Package 01 017 05 A AVout Temperature Stability of Output ATemp Voltage (Note 3) Twin <T< Twax 0.6 % Sour Long Term Stability Ta = 125C, 1000 Hours 03 1.0 03 10 % ATime en RMS Output Noise Ta = 25C, 10HZ < f < 10kHz 0.003 0.003 Y (% of Vour) Oye Thermal Resistance H Package 12 15 12 15 C/W Junction to Case K Package 2.3 3.0 2.3 3.0 C/W 4-166 LD WeELECTRICAL CHARACTERISTICS (see Note 1) LT137AHV/LT337AHV LM137HV/LM337HV LT337AHV LM337HV SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Vv Reference Voltage \VinVout| = 5V, flour = 10mA, : , = 20 1213 1.250 1.287 v 3V < Vy Vous} < 50V 10mA < lout Imax. P< Prax 1.200 1.250 1.300 V Vout Load Regulation 10MA < loys < Imax (See Note lout 2 T, = 25C, |Vout| < 5V 25 15 50 mv Tj = 25C, |Vour| = 5V 0.1 0.5 0.3 1.0 % |Vour| < 5V e 10 50 20 70 mV (Vourl = 5V e 02 10 0.3 15 % Vout Line Regulation 3V < |Vin Vourl < SOV (See Wy Note 2) Jj = 25C 0.01 0.04 %/V 0.02 0.07 %/V Ripple Rejection Vour = 10V, f = 120Hz Cans = 60 dB AD) == 10nF 66 77 dB Thermal Regulation T, = 25C, T=2ms to 12ms ; 0.003 0.04 %/W lapy Adjust Pin Current 65 100 65 100 pA Many Adjust Pin Current Change 10MA < lout < Imax e 02 2 2 5 pA 2.5V < [Vy Vout] < 50V e 2 6 3 6 uA Minimum Load Current \ViwVour | < 40V Py 2 5 25 = 10 mA [Vin-Vour| < 10V e 1 6 mA Igc Current Limit in Vourl < 13V K Package @); 15 2.2 3.6 15 2.2 3.5 A H Package @| 05 08 1.8 0.5 0.8 1.8 A in Vourl = 50V K Package 0.1 0.4 0.8 0.1 0.4 0.8 A H Package 0.05 O17 0.5 0.05 0.17 0.5 A AVour Temperature Stability of Output . - ATemp Voltage (Note 3) 2, 2 0.6 % AVout Long Term Stability Ta = 125C, 1000 Hours 0.3 1.0 0.3 1.0 % ATime Cn RMS Output Noise Ta = 25C, 10Hz < f < 10kHz 0.003 0.003 % (% of Vout) Ojc Thermal Resistance H Package 12 15 12 ats) ClW Junction to Case K Package 23 3.0 2.3 3.0 C/W The @ denotes the specifications which apply over the full operating Note 2: Testing is done using a pulsed low duty cycle technique. See temperature range. The shaded electrical specifications indicate those parameters which have been improved or guaranteed test limits provided for the first time. Note 1: Unless otherwise indicated, these specifications apply: Vin Voutl = 5V: and lou = 0.14 for the H package, Iqyr = 0.5A for the K package. Power dissipation is internally limited. However, these specifications apply for power dissipation up to 2W for the H package and 20W for the K package. Imax = 1.5A for the K package, and 0.2A for the H package. thermal regulation specifications for output changes due to heating effects. Load regulation is measured on the output pin at a point 1/8 inch below the base of the K and H package. Note 3: Guaranteed on the LT137AHV and LT337AHV, but not 100% tested in production. LY Wie 4-167LT137AHV/LT337AHV LM137HV/LM337HV SCHEMATIC DIAGRAM ro) $ > 2k x 3 o > 2 i 04 S 20k a or TT, tk | ser OS , + { Vout ny we ny P N 3 e00 ay 750 a7 60k 100k O32 034 L 08 A WAH 600 3 = 25 220 sk 1S 2k T ow AW ho" 18k 2 033 {or os ag Q12 ke 20 20 | I {02s Zea mS , i 5 T 2250 023 4 Q13 > < Yc xe Ne uz 018 {ox ou ! 027 02s 17.031. 4 O19 Ae Ny 2702 ors 4 g : , air $B 320k 5k 029 $0.04 O15 : 3 ; $ 1003 600 42k Sak 31 par 2k 2500 L] K Package TO-3 STEEL Metal Can H Package 3-Lead Metal Can 0.760-0.775 [ttase=r868 0.350 0.370 (8.890 9.398} 0.0600.135 DIA 0.320 -0.350 (1.523.43) 0.305 ~0.335 (8.13 8.89) eee YF! (7747-8509) [70.080 [ ] . . DIA (1.270) f MAX 0.420-0.480 (10.67 12.19) } 9.500 [ | ll (12.70) 0.038 -0.043 MIN | au 0 08 0.965 1. (C406 0.483) ' {0-965 ~1.08) DIA 3 LEADS M77 1.197 0.200 {29.90 - 30.40) (5.080) 0.067 ~0.077 0.100 (1.70 1.96) 0.210 -0.220 1.33 5.59) 7 SN RTVP 0.029~0.045 1 0.425-0.435 (0.737 1.14) . (10.8011.05) ~ 0.028 -0.034 a 0167-0177 > - 540} (4 24-4 49) RTYP 0.495 -0.525 (12.57 13.34) 0.655 0.675 (15.64 17.15) TJMAX 8yc 137AHV 137HV 180C 3C/w I37AHV 337HV 125C 3CW Q XN 45 TJ MAX Qc 137AHV > 137HV 150C 18C/W 337AHV 437HV 125C | 15C/W 4-168 nee