LM723JAN TI1 | Alldatasheet
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Technical content
LM723JAN Voltage Regulator Literature Number: SNVS317
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. The LM723 is also useful in a wide range of other applica- tions such as a shunt regulator, a current regulator or a temperature controller.
Features
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
Ordering Information
NS PART NUMBER SMD PART NUMBER NS PACKAGE NUMBER PACKAGE DISCRIPTION JL723BIA JM38510/10201BIA H10C 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 20125803 Note: Pin 5 connected to case. Top View See NS Package H10C February 2005 LM723JAN Regulator © 2005 National Semiconductor Corporation DS201258 www.national.com
Equivalent Circuit* 20125804 *Pin numbers refer to metal can package. Schematic Diagram 20125801 LM723JAN www.national.com 2
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 (T A = 125˚C) Metal Can (Note 2) 300 mW Cavity DIP (Note 2) 400 mW Maximum TJ +175˚C Storage Temperature Range −65˚C ≤ TA ≤ +150˚C 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 θ JC CERDIP Metal Can 22˚C/W 37˚C/W ESD Tolerance (Note 3) 1200V Recommended Operating Conditions Input Voltage Range 9.5V to 40V DC Output Voltage Range 2V to 37V DC Input-Output Voltage Differential 2.5 V to 38V DC Ambient Operating Temperature Range −55˚C ≤ TA ≤ +125˚C 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
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Electrical Characteristics
DC Parameters (Note 9) Symbol Parameter Conditions Notes Min Max Units Sub- groups VRline Line Regulation 12V ≤ VIN ≤ 15V, VOUT = 5V, IL = 1mA −0.1 0.1 %V OUT 1 −0.2 0.2 %V OUT 2 −0.3 0.3 %V OUT 3 12V ≤ VIN ≤ 40V, VOUT = 2V, IL = 1mA −0.2 0.2 %V OUT 1 9.5V ≤ VIN ≤ 40V, VOUT = 5V, IL = 1mA −0.3 0.3 %V OUT 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 V Rload Load Regulation 1mA ≤ IL ≤ 50mA, VIN = 12V, VOUT =5 V −0.15 0.15 %V OUT 1 −0.4 0.4 %V OUT 2 −0.6 0.6 %V OUT 3 1mA ≤ IL ≤ 10mA, VIN = 40V, VOUT = 37V −0.5 0.5 %V OUT 1 6mA ≤ IL ≤ 12mA, VIN = 10V, VOUT = 7.5V −0.2 0.2 %V OUT 1 1mA ≤ IL ≤ 50mA, VIN = 12V, VOUT =5 V −15.0 +15.0 mV 1 −40.0 +40.0 mV 2 −60.0 +60.0 mV 3 V REF Voltage Reference I REF = 1mA, VIN = 12V 6.95 7.35 V 1 6.9 7.4 V 2, 3 ISCD Standby Current V IN = 30V, IL =I REF =0 , VOUT =V REF 0.5 3 mA 1 0.5 2.4 mA 2 0.5 3.5 mA 3 I OS Short Circuit Current V OUT = 5V, VIN =12V, RSC =1 0Ω,R L =0 45 85 mA 1 VZ Zener Voltage I Z = 1mA (Notes 8, 10) 5.58 6.82 V 1 VOUT Output Voltage V IN = 12V, VOUT = 5V, IL = 1mA (Note 11) 4.5 5.5 V 1, 2, 3 Delta VOUT / Delta T Average Temperature Coefficient of Output Voltage 25˚C ≤ TA ≤ +125˚C, VIN = 12V, VOUT = 5V, IL = 1mA −55˚C ≤ TA ≤ +25˚C, VIN = 12V, VOUT = 5V, IL = 1mA Delta VOUT / Delta VIN Ripple Rejection f = 10KHz, C REF = 0F, VINS =2 VRMS 64 dB 4 f = 10KHz, C REF = 5µF, VINS =2 VRMS 76 dB 4 NO Output Noise Voltage 100Hz ≤ f ≤ 10KHz, VINS =0 VRMS,C REF = 0µF 120 µV RMS 4 100Hz ≤ f ≤ 10KHz, VINS =0 VRMS,C REF = 5µF 7µ V RMS 4 Delta VOUT / Delta VIN Line Transient Response V IN = 12V, VOUT = 5V, IL = 1mA, CREF = 5µF, RSC =0 Ω, Delta VIN = 3V for 25µsec 0 10 mV/V 4 LM723JAN www.national.com 4
Electrical Characteristics (Continued) DC Parameters (Note 9) Symbol Parameter Conditions Notes Min Max Units Sub- groups Delta VOUT / Delta IL Load Transient Response V IN = 12V, VOUT = 5V, IL = 40mA, CREF = 5µF, RSC =0 Ω, Delta IL = 10mA for 25µsec −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 Notes Min Max Unit Sub- groups VRline Line Regulation 12V ≤ VIN ≤ 15V, VOUT = 5V, IL = 1mA, ±1mV, or ±15% (whichever is greater) −1.0 1.0 mV 1 VRload Load Regulation 1mA ≤ IL ≤ 50mA, VIN = 12V, VOUT = 5V, ±1mV, or ±20% (whichever is greater) −1.0 1.0 mV 1 VREF Reference Voltage I REF = 1mA, VIN = 12V −15 15 mV 1 ISCD Standby Current Drain V IN = 30V, IL =I REF =0, VOUT =V REF −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 i s functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characterist ics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the lis ted test conditions. Note 2: The maximum power dissipation for these devices must be derated at elevated temperatures and is dictated by T JMAX, θJA, and the ambient temperature, TA. The maximum available power dissipation at any temperature is Pd =( TJMAX −T A)/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 k Ω 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 V Z is required, an external 6.2V zener diode should be connected in series with V OUT. Note 9: Unless otherwise specified, TA = 25˚C, VIN =V + =V C = 12V, V− =0 ,V OUT =5 V ,IL = 1 mA, RSC =0 ,C 1 = 100 pF, CREF = 0 and divider impedance as seen by error amplifier ≤ 10 k Ω 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 LM723JAN www.national.com5
Typical Performance Characteristics Load Regulation Characteristics with Current Limiting Load Regulation Characteristics with Current Limiting 20125822 20125823 Load & Line Regulation vs Input-Output Voltage Differential Current Limiting Characteristics 20125824 20125825 Current Limiting Characteristics vs Junction Temperature Standby Current Drain vs Input Voltage 20125826 20125827 LM723JAN www.national.com 6
Typical Performance Characteristics (Continued) Line Transient Response Load Transient Response 20125828 20125829 Output Impedence vs Frequency 20125830 Maximum Power Ratings Noise vs Filter Capacitor (CREF in Circuit ofFigure 1) (Bandwidth 100 Hz to 10 kHz) LM723 Power Dissipation vs Ambient Temperature 20125831 20125832 LM723JAN www.national.com7
TABLE 1. Resistor Values (kΩ) for Standard Output Voltage TABLE 2. Formulae for Intermediate Output Voltages
FIGURE 9. Positive Switching Regulator(Note 4)
Released Revision Section Originator Changes 02/15/05 A 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. LM723JAN www.national.com 16
Physical Dimensions inches (millimeters) unless otherwise noted Metal Can Package (H) Ceramic Dual-In-Line Package (J) LM723JAN www.national.com17
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