LM723QML LM723QML Voltage Regulator Literature Number: SNVS310 LM723QML 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 PACKAGE DISCRIPTION LM723E/883 E20A 20LD LEADLESS CHIP CARRIER LM723H/883 H10C 10LD T0–100, METAL CAN LM723J/883 J14A 14LD CERDIP Connection Diagrams Dual-In-Line Package Metal Can Package 20120403 20120402 Top View See NS Package J14A Note: Pin 5 connected to case. Top View See NS Package H10C 20120420 Top View See NS Package E20A © 2005 National Semiconductor Corporation DS201204 www.national.com LM723QML Regulator February 2005 LM723QML Equivalent Circuit* 20120404 *Pin numbers refer to metal can package. Schematic Diagram 20120401 www.national.com 2 Pulse Voltage from V+ to V− (50 ms) Lead Temperature (Soldering, 4 sec. max.) Input-Output Voltage Differential θJA 40V Cerdip (Still Air) 100˚C/W 40V Cerdip (500LF/ Min Air flow) 61˚C/W Metal Can (Still Air) 156˚C/W Metal Can (500LF/ Min Air flow) 89˚C/W LCC (Still Air) 96˚C/W LCC (500LF/ Min Air flow) 70˚C/W Maximum Amplifier Input Voltage Either Input Differential 8.5V 5V Current from VZ 25 mA Current from VREF 15 mA Internal Power Dissipation Metal Can (Note 2) 800 mW Cavity DIP (Note 2) 900 mW LCC (Note 2) 900 mW Operating Temperature Range Storage Temperature Range θJC CERDIP Metal Can LCC −55˚C ≤ TA ≤ +125˚C +150˚C Maximum TJ 300˚C Thermal Resistance 50V Continuous Voltage from V+ to V− LM723QML Absolute Maximum Ratings (Note 1) ESD Tolerance (Note 3) 22˚C/W 37˚C/W 27˚C/W 500V −65˚C ≤ TA ≤ +150˚C Quality Conformance Inspection MIL-STD-883, Method 5005 — Group A 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 LM723QML Electrical Characteristics DC Parameters (Note 9) Symbol Vrline Vrload VREF ISCD Parameter Conditions Notes 12V ≤ VIN ≤ 15V, VOUT = 5V, IL = 1mA Line Regulation Voltage Reference Subgroups 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 −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 IREF = 1mA, VIN = 12V Standby Current Units −0.1 1mA ≤ IL ≤ 50mA, VIN = 12V, VOUT = 5V Load Regulation Min Max VIN = 30V, IL = IREF = 0, VOUT = VREF IOS Short Circuit Current VOUT = 5V, VIN =12V, RSC = 10Ω, RL = 0 VZ Zener Voltage VIN = 40V, VOUT = 7.15V, IZ = 1mA VOUT Output Voltage VIN = 12V, VOUT = 5V, IL = 1mA (Note 8) (Note 10) 6.95 7.35 V 1 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 4.5 V 1, 2, 3 Units Subgroups 5.5 Electrical Characteristics AC Parameters (Note 9) Symbol Parameter Delta VOUT Ripple Rejection Delta VIN Conditions Not es Min Max f = 120HZ, CREF = 0, VINS = 2VRMS 55 dB 4 f = 120HZ, CREF = 5µF, VINS = 2VRMS 67 dB 4 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 DIPS only. www.national.com 4 LM723QML Typical Performance Characteristics Load Regulation Characteristics with Current Limiting Load Regulation Characteristics with Current Limiting 20120423 20120422 Load & Line Regulation vs Input-Output Voltage Differential Current Limiting Characteristics 20120425 20120424 Current Limiting Characteristics vs Junction Temperature Standby Current Drain vs Input Voltage 20120426 20120427 5 www.national.com LM723QML Typical Performance Characteristics (Continued) Line Transient Response Load Transient Response 20120428 20120429 Output Impedence vs Frequency 20120430 Maximum Power Ratings Noise vs Filter Capacitor (CREF in Circuit of Figure 1 (Bandwidth 100 Hz to 10 kHz) Power Dissipation vs Ambient Temperature 20120431 www.national.com 20120432 6 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 R2 +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 (Figure 1 Figures 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) 7 Current Limiting Foldback Current Limiting www.national.com LM723QML TABLE 1. Resistor Values (kΩ) for Standard Output Voltage LM723QML Typical Applications 20120408 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) 20120409 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) www.national.com 8 LM723QML Typical Applications (Continued) 20120410 Typical Performance Regulated Output Voltage −15V Line Regulation (∆VIN = 3V) 1 mV Load Regulation (∆IL = 100 mA) 2 mV FIGURE 3. Negative Voltage Regulator 20120411 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) 9 www.national.com LM723QML Typical Applications (Continued) 20120412 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) 20120413 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 www.national.com 10 LM723QML Typical Applications (Continued) 20120414 Typical Performance Regulated Output Voltage +50V Line Regulation (∆VIN = 20V) 15 mV Load Regulation (∆IL = 50 mA) 20 mV FIGURE 7. Positive Floating Regulator 20120415 Typical Performance Regulated Output Voltage −100V Line Regulation (∆VIN = 20V) 30 mV Load Regulation (∆IL = 100 mA) 20 mV FIGURE 8. Negative Floating Regulator 11 www.national.com LM723QML Typical Applications (Continued) 20120416 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) www.national.com 12 LM723QML Typical Applications (Continued) 20120417 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) 20120418 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 13 www.national.com LM723QML Typical Applications (Continued) 20120419 Regulated Output Voltage +5V Line Regulation (∆VIN = 10V) 0.5 mV Load Regulation (∆IL = 100 mA) 1.5 mV FIGURE 12. Shunt Regulator 20120421 FIGURE 13. Output Voltage Adjust (Note 6) www.national.com 14 LM723QML Revision History Section Date Released 02/15/05 Revision A Section Originator Changes New Release, Corporate format L. Lytle 1 MDS data sheet converted into one Corp. data sheet format. MNLM723-X, Rev. 1A0. MDS data sheet will be archived. AC and Drift parameters removed from specifcation because they only applied to the JAN B/S devices, covered in a separate datasheet. 15 www.national.com LM723QML Physical Dimensions inches (millimeters) unless otherwise noted Leadless Chip Carrier Package (E) NS Package E20A Metal Can Package (H) NS Package H10C www.national.com 16 LM723QML Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Ceramic Dual-In-Line Package (J) NS Package J14A 17 www.national.com LM723QML 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. 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