LM336-2.5/B/LM236-2.5 (KA336-2.5, KA236-2.5) PROGRAMMABLE SHUNT REGULATOR PROGRAMMABLE SHUNT REGULATOR The LM336-2.5/B integrated Circuits are precision 2.5V shunt TO-92 regulators. The monolithic IC voltage references operates as a low temperature coefficient 2.5V zener with 0.20 dynamic impedance. A third terminal on the KA336-2.5/B allow the reference voltage and temperature coefficient to be trimmed easily. LM3362.5/B are useful as a precision 2.5V low voltage reference for digital voltmeters, power supplies or op amp circuitry. The 2.5V make it convenient to obtain a stable reference from low voltage supplies. Further, since the LM336-2.5/B operate as shunt regulators, they can be used as either a positive or negative voltage reference. 1: Adj. 2: + 3: - FEATURES Low temperature coefficient ORDERING INFORMATION Guaranteed temperature stability 4mV typical 0.2 Q dynamic impedance Device Package| Operating Temperature oy tata . : Easily temmed for minimum lor erature drift LM33622.5 0 ~ +70C y P LM336Z-2.5B | TO-92 + LM2362Z-2.5 -25 ~ +85C SCHEMATIC DIAGRAM AA. V 2D = 17 MY AAA Ww D nn AA vy" a AAA. WY 4 a6 1) ADJUST AIO Rev. B snaappenneanasenangasannageensrapancgssansaneel FAIRCHILD ee SEMICONDUCTOR wv 1999 Fairchild Semiconductor Corporation LM336-2.5/B/LM236-2.5 (KA336-2.5, KA236-2.5) PROGRAMMABLE SHUNT REGULATOR ABSOLUTE MAXIMUM RATINGS Characteristic Symbol Value Unit Reverse Current lr 15 mA Forward Current lr 10 mA Operating Temperature Range LM336-2.5/B Tora 0~+70 C LM236-2.5 - 25 ~ +85 C Storage Temperature Range Tsta - 60 ~ +150 C ELECTRICAL CHARACTERISTICS (Tun < Ta < Tmax, unless otherwise specified) Characteristi Symbol | Test Conditi LM336/236 LM336B aracteristic ymbo est Conditions Min | Typ | Max | Min | Typ | Max Ta = +25C Reverse Breakdown Voltage VR A 2.44 | 2.49 | 2.54 |2.465] 2.49 |2.515 Vv Ip = 1mA Reverse Breakdown AVa/Ala Ta = +25C 26 6 26 10 mV Change with Current 400A <Ip< 10MA Reverse Dynamic Impedance Zp Ta = +25C 0.2 0.6 0.2 4 Q Ip = 1mA Temperature Stability ST+ In= IMA 1.8 6 1.8 6 mV Twins Tas Tax Reverse Breakdown AValAla Twin S Ta $ Tmax 3 10 3 42 mV Change with Current 400HA < In <10mA Reverse Dynamic Impedance Zp In= IMA 0.4 1 04 | 14 Q Twins Tas Tax ae Ip = 1mA Long Term Stability ST 20 20 ppm Twins TaST vax LM236: Tun = -25C, Tmax = +85C LM336: Tun = oc, Tmax = +70C sonprenapanapssanansannnpnanssnsasessecasanel FAIRCHILD a SEMICONDUCTOR =v LM336-2.5/B/LM236-2.5 (KA336-2.5, KA236-2.5) PROGRAMMABLE SHUNT REGULATOR TYPICAL PERFORMANCE CHARACTERISTICS Fig. 1. Reverse Voltage Change T= 25C Fig. 2 Reverse Characteristics s & w z g < - 5, LZ z o | = & oS 40-3 a w gs 2 ww a g > ws C4 SS 10-* 4 7 0 4 1078 0 2 4 6 8 10 0.6 1 1.4 18 22 26 REVERSE CURRENT (mA) REVERSE VOLTAGE(V) Fig. 3 Temperature Drift Fig. 4 Forward Characteristics 2.82 1 2.515 | 3 A 251 LA71 = = rr vil Let B 2.505 uo. Ld ttt) LA 5 5 Lert + a Lr A 5 o S$ 25 2 Le 3 Lr A) a 2 a Ler = Bere, 4 S 2.495 = | x 3 . g eee 2.49 Leer yy] | ta 2 2.485 2.48 0 -80 -26 0 26 50 75 100125 10- 10-5 10-+ 10-3 10? TEMPERATURE (C) FORWARD CURRENT (A) sonprenapanapssanansannnpnanssnsasessecasanel a SEMICONDUCTOR =v TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. 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