Order this document by MC1723C/D The MC1723C is a positive or negative voltage regulator designed to deliver load current to 150 mAdc. Output current capability can be increased to several amperes through use of one or more external pass transistors. MC1723C is specified for operation over the commercial temperature range (0° to +70°C). • Output Voltage Adjustable from 2.0 Vdc to 37 Vdc • • • VOLTAGE REGULATOR SEMICONDUCTOR TECHNICAL DATA Output Current to 150 mAdc Without External Pass Transistors 0.01% Line and 0.03% Load Regulation Adjustable Short Circuit Protection Figure 1. Representative Schematic Diagram VCC 12 500 VC 11 1.0k 1.0k 25k P SUFFIX PLASTIC PACKAGE CASE 646 Vz 6.2V 9 D SUFFIX PLASTIC PACKAGE CASE 751A (SO–14) 6.2V 15k 15k 10 VO 100 13 Compensation 5.0pF 30k 6.2V 300 5.0k 150 20k 6 5 Vref 2 Current Limit 7 4 Inverting Input VEE Noninverting Input ORDERING INFORMATION Current 3 Sense Device Alternate MC1723CD – MC1723CP LM723CN µA723PC Operating Temperature Range Package TA = 0° to +70°C Plastic DIP SO–14 Figure 2. Typical Circuit Connection (7 < VO < 37) 12 10 11 2 RSC Vin Figure 3. Typical NPN Current Boost Connection VO RSC = 0.33 3 6 MC1723C R3 R1 4 5 Cref C1 Vin = 20Vdc 12 10 11 2 3 100pF 13 MC1723C R2 7 0.1µF ^7 Vsense RSC For best results 10 k < R2 < 100 k For minimum drift R3 = R1 | | R2 R1 + R2 R2 ISC = C1 13 = 0.66 at TJ = + 25°C RSC 100pF 10k 7 Motorola, Inc. 1996 MOTOROLA ANALOG IC DEVICE DATA 12k 4 6 5 VO VO = +15Vdc IL = 2Adc max 2N3055 or Equiv Rev 5 1 MC1723C MAXIMUM RATINGS (TA = +25°C, unless otherwise noted.) Rating Pulse Voltage from VCC to VEE (50 ms) Continuous Voltage from VCC to VEE Input–Output Voltage Differential Maximum Output Current Current from Vref Current from Vz Symbol Value Unit VI(p) 50 Vpk VI 40 Vdc VI–VO 40 Vdc IL 150 mAdc Iref 15 mAdc Iz 25 mA Voltage Between Noninverting Input and VEE Vie 8.0 Vdc Differential Input Voltage Vid ±5.0 Vdc PD 1/θJA θJA 1.25 10 100 W mW/°C °C/W TJ, Tstg –65 to +175 °C TA 0 to +70 °C Power Dissipation and Thermal Characteristics TA = +25°C Derate above TA = +25°C Thermal Resistance, Junction–to–Air Operating and Storage Junction Temperature Range Operating Ambient Temperature Range ELECTRICAL CHARACTERISTICS (TA = +25°C, Vin 12 Vdc, VO = 5.0 Vdc, IL = 1.0 mAdc, RSC = 0, C1 = 100 pF, Cref = 0 and divider impedance as seen by the error amplifier ≤ 10 kΩ connected as shown in Figure 2, unless otherwise noted.) Symbol Min Typ Max Unit Input Voltage Range VI 9.5 – 40 Vdc Output Voltage Range VO 2.0 – 37 Vdc VI–VO 3.0 – 38 Vdc Reference Voltage Vref 6.80 7.15 7.50 Vdc Standby Current Drain ( IL = 0, Vin = 30 V) IIB – 2.3 4.0 mAdc Output Noise Voltage (f = 100 Hz to 10 kHz) Cref = 0 Cref = 5.0 µF Vn – – 20 2.5 – – Average Temperature Coefficient of Output Voltage (Tlow < TA < Thigh) TCVO – 0.003 0.015 Line Regulation Regline – – 0.01 0.1 0.1 0.5 – – 0.3 – – 0.03 – 0.2 0.6 – – 74 86 – – Characteristics Input–Output Voltage Differential 12 V < Vin < 15 V 12 V < Vin < 40 V (Tlow < TA < Thigh) 12 V < Vin < 15 V (TA = 25°C) Load Regulation (1.0 mA < IL < 50 mA) TA = 25°C Tlow < TA < Thigh µV(RMS) %/°C % VO Regload % VO Ripple Rejection (f = 50 Hz to 10 kHz) Cref = 0 Cref = 5.0 µF RR Short Circuit Current Limit (RSC = 10 Ω, VO = 0) ISC – 65 – mAdc ^VO/^t – 0.1 – %/1000 Hr. Long Term Stability dB NOTE: Tlow to Thigh = 0° to +70°C 2 MOTOROLA ANALOG IC DEVICE DATA MC1723C Figure 4. Maximum Load Current as a Function of Input–Output Voltage Differential Figure 5. Load Regulation Characteristics Without Current Limiting 0.05 TJmax = 150°C RTH = 150°C/W PSTANDBY 60 mW (No heatsink) 160 Reg load , LOAD REGULATION (%VO ) 120 TA = + 25°C 80 TA = + 75°C 40 0 TA = + 125°C 0 10 20 30 Vin–Vout, INPUT–OUTPUT VOLTAGE (V) 0 TA = + 25°C –0.05 TA = –55°C –0.1 TA = + 125°C –0.15 40 0 20 Figure 6. Load Regulation Characteristics With Current Limiting Reg load , LOAD REGULATION (%VO ) Reg load , LOAD REGULATION (%VO ) TA = –55°C –0.05 TA = + 25°C –0.1 TA = + 125°C RSC = 10 Ω –0.15 0 5.0 10 15 20 IO, OUTPUT CURRENT (mA) 25 0 –0.1 RSC = 10 Ω 30 TA = + 125°C 0 0.8 0.6 TA = + 125°C TA=+25°C 0.2 TA = –55°C 20 40 60 IO, OUTPUT CURRENT (mA) MOTOROLA ANALOG IC DEVICE DATA 80 40 60 IO, OUTPUT CURRENT (mA) 80 200 0.8 1.0 0 20 Figure 9. Current Limiting Characteristics as a Function of Junction Temperature RSC = 10 Ω 0.4 TA = + 25°C –0.3 –0.4 100 CURRENT LIMIT SENSE VOLTAGE (V) 1.2 TA = –55°C –0.2 Figure 8. Current Limiting Characteristics RELATIVE OUTPUT VOLTAGE (V) 100 0.1 0 0 80 Figure 7. Load Regulation Characteristics With Current Limiting 0.05 –0.2 40 60 IO, OUTPUT CURRENT (mA) 0.7 0.6 Sense Voltage Limit Current RSC = 5.0 Ω 160 120 80 0.5 LIMITING CURRENT (mA) I L (max), LOAD CURRENT (mA) 200 Limit Current RSC = 10 Ω 0.4 –50 0 50 100 TJ, JUNCTION TEMPERATURE (°C) 40 150 3 MC1723C Figure 10. Line Regulation as a Function of Input–Output Voltage Differential Figure 11. Load Regulation as a Function of Input–Output Voltage Differential 0.1 ∆Vin = +3 V Reg load , LOAD REGULATION (%VO ) 0.1 0 –0.1 5.0 15 25 Vin–Vout, INPUT–OUTPUT VOLTAGE (V) IL = 1.0 to IL = 50 mA 0 –0.1 –0.2 35 0 Figure 12. Standby Current Drain as a Function of Input Voltage 10 20 30 40 Vin–Vout, INPUT–OUTPUT VOLTAGE (V) Figure 13. Line Transient Response 4.0 STANDBY CURRENT (mA) OUTPUT VOLTAGE DEVIATION (mV) 4.0 VO = Vref IL = 0 TA = –55°C 3.0 2.0 TA = +25°C 1.0 TA = +125°C 0 10 20 30 Vin, INPUT VOLTAGE (V) 40 Input Voltage 2.0 2.0 0 –2.0 –5.0 Output Voltage –4.0 10 20 t, TIME (µs) 30 40 45 Z O , OUTPUT IMPEDANCE ( Ω ) 0 LOAD DEVIATION (mA) OUTPUT VOLTAGE DEVIATION (mV) 2.0 0 10 20 t, TIME (µs) 30 40 45 10 IL = 40 mA 0 –8.0 –5.0 0 Figure 15. Output Impedance as Function of Frequency 10 Load Current 0 Output Voltage Figure 14. Load Transient Response 4 50 INPUT VOLTAGE DEVIATION (V) Reg in , LINE REGULATION (%VO ) 0.2 IL = 50 mA CI = 0 1.0 CI = 1.0 µF 0.1 0.01 100 1.0 k 10 k 100 k 1M f, FREQUENCY (Hz) MOTOROLA ANALOG IC DEVICE DATA MC1723C Figure 16. Typical Connection for 2 < VO < 7 10 12 +Vin RSC 12 11 MC1723C R1 R3 4 10k 6 5 MC1723C 5 13 ^7 ^ Vsense ISC = RSC R2 R1 + R2 10 6 1.0M 2 3 10 2.0k 6 MC1723C 3 4 + 100µF 5 – 13 7 Figure 21. –15 V Negative Regulator 0.33 10 11 2 10 12 2N3055 or Equiv 12 11 6 5 100pF 13 12k + Sense Vout + Vref +15V 10k – 10µF – – V2 = 14V Vin = –20 V 10k 13 7 Load – Sense + Vref 5 7 MOTOROLA ANALOG IC DEVICE DATA + MC1723C 100pF MC1723C 4 12k 4 3 6 1000pF 7 Figure 20. +15 V, 1.0 A Regulator with Remote Sense 0.1µF 2 11 5.1k 5.1k +5.0V 12 +5V 5 +20V 0.33 0.1µF Vin2 +10V 10 4 1.0k Vin Vout Vout MC1723C 0.1µF Vsense RSC = (1– ) I a SC Vin1 +6.5V 1N4001 or Equiv 12 Iknee –1 ISC Figure 19. +5.0 V, 1.0 A High Efficiency Regulator 1mH 11 100 Vsense a RA = 10 kΩ where a = 1–a VO Iknee IL 2N4918 or Equiv Vin +10V 7 ISC Figure 18. +5.0 V, 1.0 A Switching Regulator R2 3 0.66 RSC at TJ = + 25°C For best results 10 k < R1 +R2 < 100 k For minimum drift R3 = R1 R2 2.2k 100pF 1000pF 7 Vout VO 4 13 R2 Cref Vout RA 2 3 6 R1 RSC 10 + Vin Vout 2 11 Figure 17. Foldback Connection Vout = –15 V 2N3055 or Equiv 5 MC1723C Figure 22. +12V, 1.0 A Regulator (Using PNP Current Boost) +18V 2N3791 or Equiv Vin Vout = +12 V 0.33 11 10 100 12 2 MC1723C 6 3 4 5 13 10k 100pF 12k 7 6 MOTOROLA ANALOG IC DEVICE DATA MC1723C OUTLINE DIMENSIONS P SUFFIX PLASTIC PACKAGE CASE 646–06 ISSUE L 14 NOTES: 1. LEADS WITHIN 0.13 (0.005) RADIUS OF TRUE POSITION AT SEATING PLANE AT MAXIMUM MATERIAL CONDITION. 2. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 3. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 4. ROUNDED CORNERS OPTIONAL. 8 B 1 7 A F DIM A B C D F G H J K L M N L C J N H G D SEATING PLANE K M D SUFFIX PLASTIC PACKAGE CASE 751A–03 (SO–14) ISSUE F –A– 14 8 –B– 1 0.25 (0.010) G M F –T– D 14 PL 0.25 (0.010) M K M T B S MOTOROLA ANALOG IC DEVICE DATA M R X 45 _ C SEATING PLANE B A S MILLIMETERS MIN MAX 18.16 19.56 6.10 6.60 3.69 4.69 0.38 0.53 1.02 1.78 2.54 BSC 1.32 2.41 0.20 0.38 2.92 3.43 7.62 BSC 0_ 10_ 0.39 1.01 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. P 7 PL 7 INCHES MIN MAX 0.715 0.770 0.240 0.260 0.145 0.185 0.015 0.021 0.040 0.070 0.100 BSC 0.052 0.095 0.008 0.015 0.115 0.135 0.300 BSC 0_ 10_ 0.015 0.039 J DIM A B C D F G J K M P R MILLIMETERS MIN MAX 8.55 8.75 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.19 0.25 0.10 0.25 0_ 7_ 5.80 6.20 0.25 0.50 INCHES MIN MAX 0.337 0.344 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 BSC 0.008 0.009 0.004 0.009 0_ 7_ 0.228 0.244 0.010 0.019 7 MC1723C Motorola reserves the right to make changes without further notice to any products herein. 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