www.fairchildsemi.com KA723 Precision Voltage Regulator Features Description • • • • The KA723 are monolithic integrated Circuit voltage regulators featuring high ripple rejection, excellent output and load regulation, excellent temperature stability, and low standby current. The KA723 are also useful in a wide range of other applications such as a shunt regulator, a current regulator or a temperature controller. Positive or Negative Supply Operation 0.01% line and load regulation Output voltage adjustable from 2V to 37 V Output current to 150mA without external pass transistor 14-DIP 1 14-SOP 1 Internal Block Diagram +Vcc 12 INVERT INPUT FREQUENCY COMPENS 4 Vo 11 12 REF AMP SERIES PASS TRANSISTOR TEMP. COMPENS ZENER ERROR AMP Vo VREF 6 7 -Vcc 5 NON INVERT INPUT 5 3 CURRENT CURRENT LIMIT SENSE 9 Vz Rev. 5.0 ©2000 Fairchild Semiconductor International KA723 Absolute Maximum Ratings Parameter Pulse Voltage from V+ to V- (50ms) Continuous Voltage from V+ to V- Symbol Value Unit VI(P) 50 VPEAK VI 40 V V I - VO 40 V Maximum Output Current IO 150 mA Differential Input Voltage VID ±5 V Voltage Between Non-Inverting Input and V- VIE 8 V IZ 25 mA Input-Output Voltage Differential Current from VZ Current from VREF IREF 15 mA Power Dissipation PD 1000 mV Operating Temperature Range TOPR 0 ~ +70 °C Storage Temperature Range TSTG -65 ~ + 150 °C Electrical Characteristics (Unless otherwise specified, TA = 25°C, VIN =V+= VC = 12V, V-=O,VOUT = 5V, IL =1mA, RSC = 0, CI = 100pF, CREF=0 and divider impedance as seen by error amplifier ≤10KΩ connected as shown in figure 1) Parameter Line Regulation Load Regulation Ripple Rejection Average Temperature Coefficient of Output Voltage Short Circuit Current Limit Reference Voltage Symbol ∆VO ∆VO dB ∆VO/∆T ISC VREF Conditions Min Typ. Max. VI = 12V to 15V VI = 12V to 40V - 0.01 0.1 0.1 0.5 TMIN ≤TA≤TMAX VI = 12V to 15V - - 0.3 IO = 1mA to 50mA - 0.03 0.2 TMIN ≤T≤TMAX IO = 1 to 50mA - - 0.6 f = 100Hz to 10KHz,CREF =0 - 74 - f = 100Hz to 10KHz,CREF =5µF - 86 - TMIN ≤T≤TMAX - RSC = 10Ω, VO = 0 % % dB %/°C - 65 - mA - 6.80 7.15 7.50 V f = 100Hz to 10KHz, CREF = 0 - 20 - f = 100Hz to 10KHz, CREF=5µF - 2.5 - - 0.1 - %/ 1000HR µVms Output Noise Voltage VN Long-term Stability ST - Standby Current Drain ID IL = 0, VI = 30V - 2.0 4.0 mA Input Voltage Range VI - 9.5 - 40 V Output Voltage Range VO - 2.0 - 37 V Input-Output Voltage Differential VD - 3.0 - 38 V Notes: 1.Line and load regulation specifications are given for the condition of constant chip temperature. 2.Temperature drifts must be taken into account separately for hith dissipation conditions. 2 0.003 0.015 Unit KA723 Typical Application Figure 1. Basic Low Voltage Regulator (VOUT = 2 to 7Volts) R1R2 Note: R3 = --------------------R1 + R2 for minimum temperature drift Typical Performance Regulated Output Voltage 5V Line regulation ( ∆VIN = 3V ) 0.5mV Load Regulation ( ∆VL = 50V ) 1.5mV 3 KA723 Mechanical Dimensions Package Dimensions in millimeters 2.08 ) 0.082 14-DIP 7.62 0.300 3.25 ±0.20 0.128 ±0.008 5.08 MAX 0.200 +0.10 0.25 –0.05 0~15° 4 +0.004 0.010 –0.002 1.50 ±0.10 0.059 ±0.004 #8 2.54 0.100 #7 19.40 ±0.20 0.764 ±0.008 #14 19.80 MAX 0.780 #1 0.46 ±0.10 0.018 ±0.004 ( 6.40 ±0.20 0.252 ±0.008 0.20 0.008 MIN 3.30 ±0.30 0.130 ±0.012 KA723 Mechanical Dimensions (Continued) Package Dimensions in millimeters 14-SOP MIN #8 0.60 ±0.20 0.024 ±0.008 MAX0.10 MAX0.004 1.80 MAX 0.071 5.72 0.225 8° 3.95 ±0.20 0.156 ±0.008 0~ +0.10 0.20 -0.05 +0.004 0.008 -0.002 6.00 ±0.30 0.236 ±0.012 +0.10 0.406 -0.05 +0.004 0.016 -0.002 #7 1.27 0.050 #14 8.70 MAX 0.343 #1 8.56 ±0.20 0.337 ±0.008 ( 0.47 ) 0.019 1.55 ±0.10 0.061 ±0.004 0.05 0.002 5 KA723 Ordering Information 6 Product Number Package KA723 14-DIP KA723D 14-SOP Operating Temperature 0 ~ +70°C KA723 7 KA723 DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR INTERNATIONAL. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com 9/25/00 0.0m 001 Stock#DSxxxxxxxx 2000 Fairchild Semiconductor International