LM723JAN LM723JAN Voltage Regulator Literature Number: SNVS317 LM723JAN Voltage Regulator General Description Features The LM723 is a voltage regulator designed primarily for series regulator applications. By itself, it will supply output currents up to 150 mA; but external transistors can be added to provide any desired load current. The circuit features extremely low standby current drain, and provision is made for either linear or foldback current limiting. n 150 mA output current without external pass transistor n Output currents in excess of 10A possible by adding external transistors n Input voltage 40V max n Output voltage adjustable from 2V to 37V n Can be used as either a linear or a switching regulator The LM723 is also useful in a wide range of other applications such as a shunt regulator, a current regulator or a temperature controller. Ordering Information NS PART NUMBER SMD PART NUMBER NS PACKAGE NUMBER JL723BIA JM38510/10201BIA H10C PACKAGE DISCRIPTION 10LD Metal Can JL723SCA JM38510/10201SCA J14A 14LD CERDIP JL723SIA JM38510/10201SIA H10C 10LD Metal Can Connection Diagrams Dual-In-Line Package Metal Can Package 20125802 Top View See NS Package J14A © 2005 National Semiconductor Corporation DS201258 20125803 Note: Pin 5 connected to case. Top View See NS Package H10C www.national.com LM723JAN Regulator February 2005 LM723JAN Equivalent Circuit* 20125804 *Pin numbers refer to metal can package. Schematic Diagram 20125801 www.national.com 2 LM723JAN Absolute Maximum Ratings (Note 1) Pulse Voltage from V+ to V− (50 ms) 50V Continuous Voltage from V+ to V− 40V Input-Output Voltage Differential 40V Differential Input Voltage ± 5V Voltage between non-inverting input and V- +8V Current from VZ 25 mA Current from VREF 15 mA Internal Power Dissipation (TA = 125˚C) Metal Can (Note 2) 300 mW Cavity DIP (Note 2) 400 mW Maximum TJ +175˚C −65˚C ≤ TA ≤ +150˚C Storage Temperature Range Lead Temperature (Soldering, 4 sec. max.) 300˚C Thermal Resistance θJA Cerdip (Still Air) Cerdip (500LF/ Min Air flow) Metal Can (Still Air) Metal Can (500LF/ Min Air flow) 100˚C/W 61˚C/W 156˚C/W 89˚C/W θJC CERDIP Metal Can 22˚C/W 37˚C/W ESD Tolerance (Note 3) 1200V Recommended Operating Conditions Input Voltage Range 9.5V to 40V Output Voltage Range 2V to 37V Input-Output Voltage Differential DC DC 2.5 V to 38V DC −55˚C ≤ TA ≤ +125˚C Ambient Operating Temperature Range Quality Conformance Inspection MIL-STD-883, Method 5004 and Method 5005 Subgroup Description Temp ( ˚C) 1 Static tests at +25 2 Static tests at +125 3 Static tests at -55 4 Dynamic tests at +25 5 Dynamic tests at +125 6 Dynamic tests at -55 7 Functional tests at +25 8A Functional tests at +125 8B Functional tests at -55 9 Switching tests at +25 10 Switching tests at +125 11 Switching tests at -55 3 www.national.com LM723JAN Electrical Characteristics DC Parameters (Note 9) Symbol VRline VRload Min Max Units Subgroups −0.1 0.1 %VOUT 1 −0.2 0.2 %VOUT 2 −0.3 0.3 %VOUT 3 12V ≤ VIN ≤ 40V, VOUT = 2V, IL = 1mA −0.2 0.2 %VOUT 1 9.5V ≤ VIN ≤ 40V, VOUT = 5V, IL = 1mA −0.3 0.3 %VOUT 1 12V ≤ VIN ≤ 15V, VOUT = 5V, IL = 1mA −10.0 +10.0 mV 1 −20.0 +20.0 mV 2 −30.0 +30.0 mV 3 Parameter Line Regulation Load Regulation Conditions Notes 12V ≤ VIN ≤ 15V, VOUT = 5V, IL = 1mA 1mA ≤ IL ≤ 50mA, VIN = 12V, VOUT = 5V −0.15 0.15 %VOUT 1 −0.4 0.4 %VOUT 2 −0.6 0.6 %VOUT 3 1mA ≤ IL ≤ 10mA, VIN = 40V, VOUT = 37V −0.5 0.5 %VOUT 1 6mA ≤ IL ≤ 12mA, VIN = 10V, VOUT = 7.5V −0.2 0.2 %VOUT 1 1mA ≤ IL ≤ 50mA, VIN = 12V, VOUT = 5V −15.0 +15.0 mV 1 −40.0 +40.0 mV 2 −60.0 +60.0 mV 3 V 1 VREF Voltage Reference IREF = 1mA, VIN = 12V ISCD Standby Current VIN = 30V, IL = IREF = 0, VOUT = VREF 6.95 7.35 6.9 7.4 V 2, 3 0.5 3 mA 1 0.5 2.4 mA 2 0.5 3.5 mA 3 45 85 mA 1 5.58 6.82 V 1 IOS Short Circuit Current VOUT = 5V, VIN =12V, RSC = 10Ω, RL = 0 VZ Zener Voltage IZ = 1mA (Notes 8, 10) VOUT Output Voltage VIN = 12V, VOUT = 5V, IL = 1mA (Note 11) 4.5 5.5 V 1, 2, 3 Delta VOUT Average Temperature / Delta T Coefficient of Output Voltage 25˚C ≤ TA ≤ +125˚C, VIN = 12V, VOUT = 5V, IL = 1mA (Note 12) −0.01 0.01 %/˚C 8A −55˚C ≤ TA ≤ +25˚C, VIN = 12V, VOUT = 5V, IL = 1mA (Note 12) −0.015 0.015 %/˚C 8B Delta VOUT Ripple Rejection / Delta VIN NO Output Noise Voltage Delta VOUT Line Transient Response / Delta VIN www.national.com f = 10KHz, CREF = 0F, VINS = 2VRMS 64 dB 4 f = 10KHz, CREF = 5µF, VINS = 2VRMS 76 dB 4 100Hz ≤ f ≤ 10KHz, VINS = 0VRMS, CREF = 0µF 120 µVRMS 4 100Hz ≤ f ≤ 10KHz, VINS = 0VRMS, CREF = 5µF 7 µVRMS 4 10 mV/V 4 VIN = 12V, VOUT = 5V, IL = 1mA, CREF = 5µF, RSC = 0Ω, Delta VIN = 3V for 25µsec 4 0 (Continued) DC Parameters (Note 9) Symbol Parameter Delta VOUT Load Transient Response / Delta IL Conditions Notes VIN = 12V, VOUT = 5V, IL = 40mA, CREF = 5µF, RSC = 0Ω, Delta IL = 10mA for 25µsec Min Max Units Subgroups −1.5 0 mV/mA 4 DC Parameters: Drift Values Delta calculations performed on JAN S and QMLV devices at Group B, Subgroup 5, only. Symbol Parameters Conditions VRline Line Regulation VRload Notes Min Max Unit Subgroups 12V ≤ VIN ≤ 15V, VOUT = 5V, IL = 1mA, ± 1mV, or ± 15% (whichever is greater) −1.0 1.0 mV 1 Load Regulation 1mA ≤ IL ≤ 50mA, VIN = 12V, VOUT = 5V, ± 1mV, or ± 20% (whichever is greater) −1.0 1.0 mV 1 VREF Reference Voltage IREF = 1mA, VIN = 12V −15 15 mV 1 ISCD Standby Current Drain VIN = 30V, IL = IREF =0, VOUT = VREF −10 10 % 1 Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. Note 2: The maximum power dissipation for these devices must be derated at elevated temperatures and is dictated by TJMAX, θJA, and the ambient temperature, TA. The maximum available power dissipation at any temperature is Pd = (TJMAX − TA)/θJA or the number given in the Absolute Maximum Ratings, whichever is less. See derating curves for maximum power rating above 25˚C. Note 3: Human body model, 1.5 kΩ in series with 100 pF. Note 4: L1 is 40 turns of No. 20 enameled copper wire wound on Ferroxcube P36/22-3B7 pot core or equivalent with 0.009 in. air gap. Note 5: Figures in parentheses may be used if R1/R2 divider is placed on opposite input of error amp. Note 6: Replace R1/R2 in figures with divider shown in Figure 13. Note 7: V+ and VCC must be connected to a +3V or greater supply. Note 8: For metal can applications where VZ is required, an external 6.2V zener diode should be connected in series with VOUT. Note 9: Unless otherwise specified, TA = 25˚C, VIN = V+ = VC = 12V, V− = 0, VOUT = 5V, IL = 1 mA, RSC = 0, C1 = 100 pF, CREF = 0 and divider impedance as seen by error amplifier ≤ 10 kΩ connected as shown in Figure 1. Line and load regulation specifications are given for the condition of constant chip temperature. Temperature drifts must be taken into account separately for high dissipation conditions. Note 10: Tested for 14 – lead DIP only. Note 11: Setup test for Temp. Coeff. Note 12: Calculated parameter 5 www.national.com LM723JAN Electrical Characteristics LM723JAN Typical Performance Characteristics Load Regulation Characteristics with Current Limiting Load Regulation Characteristics with Current Limiting 20125823 20125822 Load & Line Regulation vs Input-Output Voltage Differential Current Limiting Characteristics 20125825 20125824 Current Limiting Characteristics vs Junction Temperature Standby Current Drain vs Input Voltage 20125826 www.national.com 20125827 6 LM723JAN Typical Performance Characteristics (Continued) Line Transient Response Load Transient Response 20125828 20125829 Output Impedence vs Frequency 20125830 Maximum Power Ratings LM723 Power Dissipation vs Ambient Temperature Noise vs Filter Capacitor (CREF in Circuit of Figure 1) (Bandwidth 100 Hz to 10 kHz) 20125831 20125832 7 www.national.com LM723JAN TABLE 1. Resistor Values (kΩ) for Standard Output Voltage Positive Applicable Fixed Output Negative Output Figures Output Adjustable Output Applicable ± 10% (Note 6) Voltage Figures ± 5% Voltage Fixed 5% Output Output Adjustable ± 5% ± 10% (Note 5) R1 R2 R1 P1 R2 R1 R2 R1 P1 +3.0 1, 5, 6, 9, 12 (4) 4.12 3.01 1.8 0.5 1.2 +100 +3.6 1, 5, 6, 9, 12 (4) 3.57 3.65 1.5 0.5 1.5 +250 7 3.57 102 2.2 10 91 7 3.57 255 2.2 10 240 +5.0 1, 5, 6, 9, 12 (4) 2.15 4.99 0.75 0.5 2.2 −6 (Note 7) 3, (10) 3.57 2.43 1.2 0.5 0.75 +6.0 1, 5, 6, 9, 12 (4) 1.15 6.04 0.5 0.5 2.7 −9 3, 10 3.48 5.36 1.2 0.5 2.0 +9.0 2, 4, (5, 6, 9, 12) 1.87 7.15 0.75 1.0 2.7 −12 3, 10 3.57 8.45 1.2 0.5 3.3 +12 2, 4, (5, 6, 9, 12) 4.87 7.15 2.0 1.0 3.0 −15 3, 10 3.65 11.5 1.2 0.5 4.3 +15 2, 4, (5, 6, 9, 12) 7.87 7.15 3.3 1.0 3.0 −28 3, 10 3.57 24.3 1.2 0.5 10 +28 2, 4, (5, 6, 9, 12) 21.0 7.15 5.6 1.0 2.0 −45 8 3.57 41.2 2.2 10 33 +45 7 3.57 48.7 2.2 10 39 −100 8 3.57 97.6 2.2 10 91 +75 7 3.57 78.7 2.2 10 68 −250 8 3.57 249 2.2 10 240 TABLE 2. Formulae for Intermediate Output Voltages Outputs from +2 to +7 volts Outputs from +4 to +250 volts (Figures 1, 4, 5, 6, 9, 12 ) (Figure 7) Outputs from +7 to +37 volts Outputs from −6 to −250 volts (Figures 2, 4, 5, 6, 9, 12) (Figures 3, 8, 10) www.national.com 8 Current Limiting Foldback Current Limiting R2 LM723JAN Typical Applications 20125808 for minimum temperature drift Typical Performance Regulated Output Voltage 5V Line Regulation (∆VIN = 3V) 0.5mV Load Regulation (∆IL = 50 mA) 1.5mV FIGURE 1. Basic Low Voltage Regulator (VOUT = 2 to 7 Volts) 20125809 for minimum temperature drift. R3 may be eliminated for minimum component count. Typical Performance Regulated Output Voltage 15V Line Regulation (∆VIN = 3V) 1.5 mV Load Regulation (∆IL = 50 mA) 4.5 mV FIGURE 2. Basic High Voltage Regulator (VOUT = 7 to 37 Volts) 9 www.national.com LM723JAN Typical Applications (Continued) 20125810 Typical Performance Regulated Output Voltage −15V Line Regulation (∆VIN = 3V) 1 mV Load Regulation (∆IL = 100 mA) 2 mV FIGURE 3. Negative Voltage Regulator 20125811 Typical Performance Regulated Output Voltage +15V Line Regulation (∆VIN = 3V) 1.5 mV Load Regulation (∆IL = 1A) 15 mV FIGURE 4. Positive Voltage Regulator (External NPN Pass Transistor) www.national.com 10 LM723JAN Typical Applications (Continued) 20125812 Typical Performance Regulated Output Voltage Line Regulation (∆VIN = 3V) Load Regulation (∆IL = 1A) +5V 0.5 mV 5 mV FIGURE 5. Positive Voltage Regulator (External PNP Pass Transistor) 20125813 Typical Performance Regulated Output Voltage Line Regulation (∆VIN = 3V) Load Regulation (∆IL = 10 mA) Short Circuit Current +5V 0.5 mV 1 mV 20 mA FIGURE 6. Foldback Current Limiting 11 www.national.com LM723JAN Typical Applications (Continued) 20125814 Typical Performance Regulated Output Voltage +50V Line Regulation (∆VIN = 20V) 15 mV Load Regulation (∆IL = 50 mA) 20 mV FIGURE 7. Positive Floating Regulator 20125815 Typical Performance Regulated Output Voltage −100V Line Regulation (∆VIN = 20V) 30 mV Load Regulation (∆IL = 100 mA) 20 mV FIGURE 8. Negative Floating Regulator www.national.com 12 LM723JAN Typical Applications (Continued) 20125816 Typical Performance Regulated Output Voltage +5V Line Regulation (∆VIN = 30V) 10 mV Load Regulation (∆IL = 2A) 80 mV FIGURE 9. Positive Switching Regulator(Note 4) 13 www.national.com LM723JAN Typical Applications (Continued) 20125817 Typical Performance Regulated Output Voltage −15V Line Regulation (∆VIN = 20V) 8 mV Load Regulation (∆IL = 2A) 6 mV FIGURE 10. Negative Switching Regulator(Note 4) 20125818 Note: Current limit transistor may be used for shutdown if current limiting is not required. Typical Performance Regulated Output Voltage +5V Line Regulation (∆VIN = 3V) 0.5 mV Load Regulation (∆IL = 50 mA) 1.5 mV FIGURE 11. Remote Shutdown Regulator with Current Limiting www.national.com 14 LM723JAN Typical Applications (Continued) 20125819 Regulated Output Voltage +5V Line Regulation (∆VIN = 10V) 0.5 mV Load Regulation (∆IL = 100 mA) 1.5 mV FIGURE 12. Shunt Regulator 20125821 FIGURE 13. Output Voltage Adjust (Note 6) 15 www.national.com LM723JAN Revision History Section Date Released 02/15/05 www.national.com Revision A Section Originator Changes New Release, Corporate format L. Lytle 1 MDS data sheet converted into one Corp. data sheet format. MJLM723-X, Rev. 1A0. MDS data sheet will be archived. 16 LM723JAN Physical Dimensions inches (millimeters) unless otherwise noted Metal Can Package (H) NS Package H10C Ceramic Dual-In-Line Package (J) NS Package J14A 17 www.national.com LM723JAN Regulator National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. For the most current product information visit us at www.national.com. LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. 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