A. LAMBDA LINEAR REGULATORS LLM 317 1.5 AMP POSITIVE ADJUSTABLE VOLTAGE REGULATOR FEATURES e Adjustable output down to 1.2V Line regulation typically 0.01%/V e Load regulation typically 0.1% e Current limit constant with temperature e Standard 3-terminal, TO-3 package DESCRIPTION The LLM 317 voltage regulator is a mono- lithic integrated circuit designed for use in applications requiring a well regulated positive output voltage. Outstanding fea- tures include full power usage up to 1.5 amperes of load current, internal current limiting, thermal shutdown, and safe area protection on the chip, providing protec- tion of the series pass Darlington, under most operating conditions. Hermetically sealed steel TO-3 packages are utilized for high reliability and low thermal resistance. The LLM 317, a three terminal adjustable regulator, is available with an output range from +1.2 to +37 Volts. The out- put voltage is easily set by two external resistors. Since the regulator is floating, higher output voltages can be regulated as long as the maximum input-output volt- age differential is not exceeded. ABSOLUTE MAXIMUM RATINGS PARAMETER | SYMBOL | MINIMUM | MAXIMUM | UNITS Input-Output Voltage Vin - Vout 40 Volts Differential Power P Internally Dissipation Limited Thermal Resis- tance Junction Bic 3.0 C Watt to Case Operating Junc- tion Tempera- Ty 0 125 C ture Range Storage Tem- perature Range "sre ~ 85 150 G Lead Tempera- ture (Soldering, BO Second | Teno 300 , Time Limit) TYPICAL APPLICATION ADJUSTABLE VOLTAGE REGULATOR'2 RECTIFIED INPUT at LLM 317 [CASE Vour | C,7TOMe OS Cp Ta 1.0nF Re 2 0 Vour = 1.25V (1 + RA/R,) 1C, needed if device is far from filter capacitors. 2C. optional - improves transient response. BLOCK DIAGRAM O INPUT SAFE AREA PROTECTION CURRENT LIMITING LIMIT AMPLIFIER O OUTPUT SENSE THERMAL OVERLOAC VOLTAGE REGULATION AMPLIFIER Vrer O ADJUST 163LLM 317 ELECTRICAL CHARACTERISTICS Test Conditions' Test Limits Parameter Vin-Vour lo Ty Min | Typ | Max | Units Line Regulation 3V to 40V 0.5A oc ot BC oD oe iM Load Regulation? Vo = 5V 25C 5 25 | mV vey TOMA t0 1-58 | oe tp 105% 20 | 70. | mv Vo = 5V 0C to 125C 03,15 | % Thermal Regulation? 5V 0.5A 25C 0.04 | 0.07 | %/WV Adjust Pin Current 5V 0.5A 0C to 125C 50 | 100 | pA Adjust Pin Current Change 2.5V to 40V | 10mA to 1.5A | 0C to 125C 0.2 5 pA Reference Voltage 3V to 40V. | 10mA to 1.5A | 0C to 125C | 1.20 | 1.25 | 1.30] V Temperature Stability 5V 0.5A 0C to 125C 1 % Minimum Load Current 40V 0C to 125C 3.5 | 10.0 | mA Current Limit =15V OC to 126C | 1.5 } 2.2 A RMS Output Noise* 5V 0.5A 25C 0.003 %Vo Ripple Rejection Ratios Guns = 10uf Vo = 10V 0.5A 0C to 125C 66 6s dB Although power dissipation is internally limited, these specifications are applicable for power dissipations of 20 Watts. @) Low duty cycle pulse testing with Kelvin connections required. Changes in output voltage due to heating effects are covered under the specification for thermal regulation. 3) 20mS pulse 4) BW = 10Hz to 10kHz (8) 120Hz input ripple 164LLM 317 OPERATIONAL DATA CURRENT LIMIT Ty = 125C S OUTPUT CURRENT (AMPS) 0 5 10 15 20 25 30 35 40 Vin-Vour (VOLTS) LOAD REGULATION 0.2 oO | iJ Viv = 10V Vout = 5V I = 1.5A OUTPUT VOLTAGE DEVIATION (%) [ 6 1.0 -75 -0-25 0 25 50 75 TEMPERATURE (C) 100 125 150 ADJUSTMENT CURRENT oOo Oo Lane) \ _ \ a So ADJUSTMENT CURRENT (AMPS) 8 g N 30 75 -50 -25 O 25 50 75 100 125 150 TEMPERATURE (C) REFERENCE VOLTAGE (VOLTS) Vin-Vour (VOLTS) FREQUENCY (Hz) DROPOUT VOLTAGE 3.5 T T T T A Vout = 100mV 3.0 IL = 1.5A - N= 1.04 =Y4 | F / IL = 0.5A 4 1 2.0} - 1.5 a . ~_ 1.0 | I, = 0.2A 05 IL = 0.02A '-75 -0 -25 0 25 50 76 100 125 150 TEMPERATURE (C) TEMPERATURE STABILITY -75 -50-25 0 TEMPERATURE (C) 100 80 60 40 20 25 50 75 100 125 150 RIPPLE REJECTION Capy = 10nF 100 1K Vin = 15V Vout = 10V I, = 500MA Ty = 25C 10K 100K 1M RIPPLE REJECTION (dB) 165LLM 317 DEVICE OUTLINE 1.050 / Oo O} max 0.188R MAX BOTH ENDS \. 0.525R MAX b+. 1.575 MAX >J 0.875 MAX [ DIA 0.068 0.059 j 1 7 0.450 0.250 4 | | \ wre 0.480 BASE 0.440 0.043 _| 7 } 0.038 DIA 2 LEADS 1.477 1,197 0.151 0.655 0.161 DIA 0.675 2HOLES , | ST af | @) 0420 EX 0.440 _~ = 0.205 0.225 Bottom View 1 - Adjust 2 Input Case is Output NOTE: Case temperature measured at point X. 166 All dimensions are in inches.