Lm723

LM723
HIGH PRECISION VOLTAGE REGULATOR
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INPUT VOLTAGE UP TO 40V OUTPUT VOLTAGE ADJUSTABLE FROM 2 TO 37V POSITIVE OR NEGATIVE SUPPLY OPERATION SERIES, SHUNT, SWITCHING OR FLOATING OPERATION OUTPUT CURRENT TO 150mA WITHOUT EXTERNAL PASS TRANSISTOR ADJUSTABLE CURRENT LIMITING

DIP-14

DESCRIPTION The LM723 is a monolithic integrated programmable voltage regulator,assembled in 14-lead dual in-line plastic and SO-14 micro package. The circuit provides internal current limiting. When the output current exceeds 150mA an external NPN or PNP pass element may be used. Provisions are made for adjustable current limiting and remote shut-down.

SO-14

SCHEMATIC DIAGRAM

September 2003

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ABSOLUTE MAXIMUM RATINGS
Value Symbol VI ∆VI-O IO IREF TopTstg TJ Parameter LM723 DC Input Voltage Dropout Voltage Output Current Current from VREF Operating Temperature Storage Temperature Junction Temperature 40 40 150 15 -55 to 125 -65 to 150 150 LM723C 40 40 150 25 0 to 70 -65 to 150 125 V V mA mA °C °C °C Unit

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is notimplied.

THERMAL DATA
Symbol Rthj-amb Parameter Thermal Resistance Junction-Ambient Max DIP14 200 SO-14 160 Unit °C/W

PIN CONNECTION (top view)

ORDERING CODES
TYPE LM723 LM723C DIP-14 LM723N LM723CN SO-14 LM723CD

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TEST CIRCUITS (pin configuration relative to the plastic package)

VI = 12V; VO = 5V: IO = 1mA; R1/R2 ≤ 10KΩ

ELECTRICAL CHARACTERISTICS FOR LM723 (referto the test circuits, Tamb = 25°C, unless otherwise specified.)
Symbol Parameter Test Conditions VI = 12 to 15 V VI = 12 to 40 V VI = 12 to 15 V, ∆VO/VO Load Regulation VREF SVR ∆VO/∆T ISC VI VO VO-VI Id KVH eN Quiescent Current Long Term Stability Output Noise Voltage BW = 100 Hz to 10 KHz CREF = 0 CREF = 5µF VI = 30V, IO = 0 mA Reference Voltage Supply Voltage Rejection Output Voltage DriftOutput Current Limit Input Voltage Range Output Voltage Range RSC = 10Ω VO = 0 V 9.5 2 3 2.3 0.1 20 2.5 65 40 37 38 5 IO = 1 to 50 mA IO = 1 to 10 mA IREF = 160 µA f = 100 Hz to 10KHz CREF = 0 CREF = 5µF Ta = -55 to 125°C 6.95 7.15 74 86 150 ppm/°C mA V V V mA %/1000 hrs µV Ta = -55 to 125°C 0.03 Min. Typ. 0.01 0.02 Max. 0.1 0.2 0.3 0.15 0.6 7.35 V dB % Unit % ∆VO/∆VI Line Regulation

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ELECTRICAL CHARACTERISTICS FOR LM723C (refer to the test circuits, Tamb = 25°C, unless otherwise specified.)
Symbol Parameter Test Conditions VI = 12 to 15 V VI = 12 to 40 V VI = 12 to 15 V, ∆VO/VO Load Regulation VREF SVR ∆VO/∆T ISC VI VO VO-VI Id KVH eN Quiescent Current Long Term Stability Output Noise Voltage BW = 100 Hz to 10 KHz CREF = 0 CREF = 5µF VI = 30V, IO = 0 mA Reference VoltageSupply Voltage Rejection Output Voltage Drift Output Current Limit Input Voltage Range Output Voltage Range RSC = 10Ω VO = 0 V 9.5 2 3 2.3 0.1 20 2.5 65 40 37 38 4 IO = 1 to 50 mA IO = 1 to 10 mA IREF = 160 µA f = 100 Hz to 10KHz CREF = 0 CREF = 5µF Ta = 0 to 70°C 6.8 7.15 74 86 150 ppm/°C mA V V V mA %/1000 hrs µV Ta = 0 to 70°C 0.03 Min. Typ. 0.01 0.1 Max. 0.1 0.5 0.3 0.2 0.6 7.5 V dB % Unit %∆VO/∆VI Line Regulation

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TYPICAL PERFORMANCE CHARACTERISTICS (unless otherwise specified VO(NOM) = 3.3 V) Figure 1 : Maximum Output Current vs Voltage Drop Figure 4 : Load Regulation Characteristics without Current Limiting

Figure 2 : Current Limiting Characteristics

Figure 5 : Load Regulation Characteristics with Current Limiting

Figure 3 : Current Limiting Characteristicsvs Junction Temperature

Figure 6 : Load Regulation Characteristics with Current Limiting

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Figure 7 : Line Regulation vs Voltage Drop Figure 10 : Line Transient Response

Figure 8 : Load Regulation vs Voltage Drop

Figure 11 : Load Transient Response

Figure 9 : Quiescent Drain Current vs Input Voltage

Figure 12 : Output Impedance vs Frequency

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