PD-97259 able Positive Linear Regulator Thru-Hole (TO-257AA) Product Summary Part Number Input Voltage Range able Output Voltage Package 4.25V to 41.25V 1.2V to 37V TO-257 (Isolated) 4.25V to 41.25V 1.2V to 37V TO-257 (Non-Isolated) 1.5A Description This three terminal positive regulator is supplied in a hermetically sealed metal package. All protective features are designed into the circuit, including thermal shutdown, current-limiting, and safe-area control. With heat sinking, these devices can deliver up to 1.5 amps of output current. This unit also features output voltages that can be trimmed from 1.2 volt to 37 volts using external resistors. TO-257AA Features: n able Output Voltage n Eliminates Stocking Fixed Voltages n Built-In Thermal Oveload Protection n Short Circuit Current Limiting n Isolated / Non-Isolated Hermetic TO-257AA Package ensures High Reliability Absolute Maximum Ratings @ Tc = 25 C Parameter Symbol Value Units Input-Output Voltage Differential -O 40 Input Voltage Range 4.25 to 41.25 V Output Voltage Range UT 1.2 to 37 Output Current I OUT 1.5 A Power Dissipation @ T C = 86 C Thermal Resistance, Junction to Case P DC R θjc 17.5 3.5 Power Dissipation @ T A = 25 C Thermal Resistance, Junction to Ambient P DA R θja 3.0 42 W C/W Operating Junction Temperature Range -55 to 150 Storage Temperature Range T STG -65 to 150 C Lead Temperature Soldering (10 seconds maximum) T L 300 www.irf.com 1 10/20/06
, Electrical Characteristics -55 CÃdÃT A dã125 C, = 8.0mA (Unless Otherwise Specified) Parameter Symbol Test Conditions Min. Max. Units V DIFF = 3.0V, T A = 25 C 1.2 1.3 Reference Voltage V REF V DIFF = 3.3V e 1.2 1.3 V V DIFF = 40V e 1.2 1.3 Line Regulation c R LINE 3.0V V DIFF 40V, UT = V REF, T A = 25 C -9.0 9.0 3.3V V DIFF 40V, UT = V REF e -23 23 V DIFF = 3.0V, 10mA 1.5A, T A = 25 C -15 15 V DIFF = 3.3V, 10mA 1.5A e -15 15 V DIFF = 40V, 10mA 300mA, T A = 25 C -15 15 V DIFF = 40V, 10mA 195mA e -15 15 Load Regulation c R LOAD mv Thermal Regulation V RTH = 14.6V, =1.5A, P D = 20W, t = 20ms, T A = 25 C -16 16 Ripple Rejection d R N f = 120Hz, UT = V REF, C ADJ = 10µF e 66 - db V DIFF = 3.0V, T A = 25 C - 100 ment Pin Current I ADJ V DIFF = 3.3V e - 100 V DIFF = 40V e - 100 V DIFF = 3.0V, 10mA 1.5A, T A = 25 C -5.0 5.0 V DIFF = 3.3V, 10mA 1.5A e -5.0 5.0 µa ment Pin I ADJ V DIFF = 40V, 10mA 300mA, T A = 25 C -5.0 5.0 Current Change V DIFF = 40V, 10mA 195mA e -5.0 5.0 3.0V V DIFF 40V, T A = 25 C -5.0 5.0 3.3V V DIFF 40V e -5.0 5.0 V DIFF = 3.0V, UT =1.4V (forced), T A = 25 C - 5.0 Minimum Load Current MIN V DIFF = 3.3V, UT =1.4V (forced) e - 5.0 ma V DIFF = 40V, UT =1.4V (forced) e - 5.0 Current Limit d I CL V DIFF = 15V e 1.5 3.5 V DIFF = 40V, T A = 25 C 0.18 1.5 A Notes Load and Line Regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used. Changes in output voltage due to heating effects must be taken into account separately. If not tested, shall be guaranteed to specific limits. ƒ The specifications are applied over the full operating temperature range. 2 www.irf.com
,, OUTPUT VOLTAGE CHANGE (%) 0.4 0.2 0-0.2-0.4-0.6-0.8 = 15V = 10V = 1.5A = 0.5A -1.0 I O, OUTPUT CURRENT (A) 4 3 2 1 = 25 C = 150 C = -55 C 0 0 10 20 30 40 -, INPUT - OUTPUT VOLTAGE DIFFERENTIAL ( V dc ) Fig. 1 Load Regulation Fig. 2 Current Limit I Adj, ADJUSTMENT PIN CURRENT (µa) 70 65 60 55 50 45 40 35 -, INPUT-OUTPUT VOLTAGE DIFFERENTIAL (V dc ) 3.0 2.5 2.0 1.5 = 100mV = 20mA = 1.5A = 1.0A = 200mA = 500mA 1.0 Fig. 3 ment Pin Current Fig. 4 Dropout Voltage V ref, REFERENCE VOLTAGE (V) 1.260 1.250 1.240 1.230 1.220 I B, QUIESCENT CURRENT (ma) 5.0 4.5 = -55 C 4.0 3.5 = 25 C 3.0 = 150 C 2.5 2.0 1.5 1.0 0.5 0 0 10 20 30 40 -, INPUT - OUTPUT VOLTAGE DIFFERENTIAL ( V dc ) Fig. 5 Temperature Stability Fig. 6 Minimum Operating Current www.irf.com 3
, Fig. 7 - Standard Application C IN * 0.1µF I ADJ UT R1 240 C OUT ** 1.0µF R2 * C IN is required if regulator is located an appreciable distance from power supply filter. ** C OUT is not needed for stability, however it does improve transient response. UT = 1.25V(1 (R2/R1)) I ADJ (R2) Since I ADJ is not controlled to less than 100µA, the error associated with this term is negligible in most applications. Typical Applications Fig. 8 able Current Limiter 25V UT R1 I O 1.25 R2 D IN 1N4001 To provide current limiting of I O to the system ground, the source of the FET must be tied to a negative voltage below -1.25V. 100 D IN 1N4001 R2 = V REF / I DSS, R1 = V REF / (I OMAX I DSS) < (BV DSS 1.25V V SS ) (MIN I DSS ) < I O < 1.5A 2N5640 As shown 0 < I O < 1.0A V SS 4 www.irf.com
Fig. 9 5V Electronic Shut Down Regulator, 1N4002 D1 720 120 1.0µF MPS2222 1K TTL Control Minimum UT = 1.25V D1 protects the device during an input short circuit Fig. 10 Slow Turn-On Regulator 240 1N4001 50K R2 MPS2907 10µF Fig. 11 Current Regulator R1 I OUT I ADJ I OUT = (V REF / R1) I ADJ = (1.25V / R1) I ADJ 10mA < I OUT < 1.5A www.irf.com 5
, Case Outline and Dimensions TO-257AA 10.66 [.420] 10.42 [.410] A 3.81 [.150] 3X Ø 3.56 [.140] 5.08 [.200] 4.83 [.190] 0.13 [.005] 1.14 [.045] 0.89 [.035] 13.63 [.537] 13.39 [.527] 16.89 [.665] 16.39 [.645] 10.92 [.430] 10.42 [.410] B 1 2 3 C 15.88 [.625] 12.70 [.500] 0.71 [.028] MAX. 2.54 [.100] 2X 3X Ø 0.88 [.035] 0.64 [.025] Ø 0.50 [.020] C A B 3.05 [.120] NOTES : 1. DIMENSIONING & TOLERANCING PER ANSI Y14.5M-1994. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSIONS ARE SHOWN IN MILLIMETERS [INCHES]. 4. OUTLINE CONFORMS TO JEDEC OUTLINE TO-257AA. PIN ASSIGNMENTS ISOLATED Front View NON-ISOLATED Front View Pin # Description Pin # Description 1 ADJUST 1 ADJUST 2 OUTPUT 2 OUTPUT 3 INPUT 3 INPUT Tab ISOLATED Tab OUTPUT Device Number Part Numbering Nomenclature OM 7602 S/N T M Screening M = MIL-PRF-38535 P = Minimal Screening Package Code T = TO-257AA Isolated / Non-Isolated S = Isolated N = Non-Isolated WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 252-7105 IR LEOMINSTER: 205 Crawford St., Leominster, Massachusetts 01453, Tel: (978) 534-5776 Data and specifications subject to change without notice.10/2006 6 www.irf.com