A\LAMBDA LINEAR REGULATORS LLM 338 5 AMP POSITIVE ADJUSTABLE VOLTAGE REGULATOR ABSOLUTE MAXIMUM RATINGS PARAMETER | SYMBOL | MINIMUM | MAXIMUM | UNITS Input-Output Voltage VineVour 35 Volts Differential Power P Internally Dissipation o Limited Thermal Resis- tance Junction Bic 1.0 CMWatt to Case Operating Junc- tion Tempera- Ty 0 125 C ture Range Storage Tem- _ 6 FEATURES perature Range Tsta 68 150 C Lead Tempera- e Adjustable output down to 1.2V ture (Soldering, | 7, 300 * . . . : 60 Seconds e Line regulation typically 0.005%/V Time Limit) e Load regulation typically 0.1% e Current limit constant with temperature TYPICAL APPLICATION e Standard 3-terminal, TO-3 package ADJUSTABLE VOLTAGE REGULATOR'.2 REG TIAIED V INPU 2 LLM 338 CASE ouT 1 R, DESCRIPTION GF The LLM 338 voltage regulator is a mono- C, 27 O.ApF 1.OnF lithic integrated circuit designed for use in applications requiring a well regulated Re positive output voltage. Outstanding fea- tures include full power usage up to 5.0 o4 Tt amperes of load current, internal current = limiting, thermal shutdown, and safe area Vour = 1.25V (1 + Re/R,) protection on the chip, providing protec- 1C, needed if device is far from filter capacitors. tion of the series pass Darlington, under *Cz optional - improves transient response. most operating conditions. Hermetically sealed copper/steel TO-3 packages are BLOCK DIAGRAM nut utilized for high reliability and low thermal GAEAREA resistance. PROTERTION The LLM 338, a three terminal adjustable regulator, is available with an output range from +1.2 to +32 Volts. The out- put voltage is easily set by two external resistors. Since the regulator is floating, REGULATION higher output voltages can be regulated _ Fa CURRENT LIMITING LIMIT 3 AMPLIFIER OUTPUT SENSE THERMAL OVERLOAD as long as the maximum input-output volt- age differential is not exceeded. 1 apwst 167LLM 338 ELECTRICAL CHARACTERISTICS Test Conditions Test Limits Parameter Vin-Vour lo Ty Min | Typ | Max | Units : on? 25C 0.005 | 0.03 | %/V Line Regulation 3V to 35V 2.5A 0C to 125C 0.02 10:06 | %NV Load Regulation2 Vo = 5V 25C 5 25 | mV Vo = 5V BA 25C 0.1; 05) % Vo = 5V TOmA to 5A | 6 to 125C 20 | 50 | mv Vo 2 5V 0C to 125C 03/10! % Thermal Regulation? 5V 2.5A 25C 0.002 | 0.02 | %/W Adjust Pin Current 5V 2.5A 0C to 125C 45 | 100 | pA Adjust Pin Current Change 3V to 35V 10mA to 5A | 0C to 125C 0.2 5 pA Reference Voltage 3V to 35V 10mA to 5A | 0C to 125C 7 1.19 | 1.24 11.29] V Temperature Stability 5V 2.5A 0C to 125C 1 % Minimum Load Current 35V 0C to 125C 3.5 | 10.0] mA Current Limit =10V 5 8 0.5mS peak =10V 0C to 125C | 7 12 A 30V 1 RMS Output Noise4 5V 2.5A 25C 0.003 %INo Ripple Rejection Ratios V, = 10V 2.58 0C to 125C 60 dB Capp = 10pF | 60 | 75 ) Although power dissipation is internally limited, these specifications are applicable for power dissipations of 50 Watts. (2) 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 168LLM 338 OPERATIONAL DATA CURRENT LIMIT --~ Current Limit DC Current Limit OUTPUT CURRENT (AMPS) 0 5 10 16 20 25 30 35 40 Vin-Vour (VOLTS) LOAD REGULATION 0 -04 -0.2 -0.3 0.4 Vin = 10V 0.5 Vout = 5V OUTPUT VOLTAGE DEVIATION (%) = 5A 0.6 -75-50-25 0 25 50 75 100 125 150 TEMPERATURE (C) ADJUSTMENT CURRENT 90 80 70 60 a 50 aa 40 ADJUSTMENT CURRENT (nAMPS) 30 -75-50-25 0 25 50 75 100 125 150 TEMPERATURE (C) Vin-Vour (VOLTS) REFERENCE VOLTAGE (VOLTS) FREQUENCY (Hz} DROPOUT VOLTAGE 3.5 TT T_T A Vout = 100mV 3.0 | 2.5} 2.0 Pl . Pe] 1.5 fap 1.0 0.5 -75-50-25 0 25 50 75 100125 150 TEMPERATURE (C) TEMPERATURE STABILITY 1.22 1.21 75- 25 50 TEMPERATURE (C) RIPPLE REJECTION 80 Caps = 10RF 60 40 Caps = 0 20 Vin = 15V 0 Vout = 10V = 2A T, = 25C 10 100 1K 10K 100K 1M RIPPLE REJECTION (dB) 20 169LLM 338 DEVICE OUTLINE TO-3 (COPPER/STEEL) y O QO) 0.992 MAX. 0.157 | MAX BOTH ENDS \ 0.492 R MAX. le 1.54 MAX. ~+ . 0.354 t \ MTs. 0.433 0.0374 | ~~ || BASE 0.472 DIA 2 LEADS 1.18 120 Bottom View 1 Adjust 2 Input Case is Output NOTE: Case temperature measured at point X. 170 All dimensions are in inches.