UNISONIC TECHNOLOGIES CO., LTD UC723 LINEAR INTEGRATED CIRCUIT ADJUSTABLE VOLTAGE REGULATOR DESCRIPTION The UTC UC723 is a silicon monolithic integrated circuit, designed for service as voltage regulator at output voltages, ranging from 2V ~ 37V at current up to 150mA. It includes a temperature-compensated reference amplifier, an error amplifier, a power series pass transistor, and a current-limiting circuit. FEATURES *Up to 150mA Output Current *Adjustable Output Voltage (From 2V ~ 37V) *Positive and Negative Voltage Regulation *Regulation in Excess of 10A with Suitable Pass Transistors *Input and Output Short-Circuit Protection *Load and Line Regulation< 0.03% ORDERING INFORMATION Ordering Number Lead free Halogen Free UC723L-D14-T UC723G-D14-T Package Packing DIP-14 Tube UC723L-D14-T (1)Packing Type (2)Package Type (3)Lead Free www.unisonic.com.tw Copyright (c) 2012 Unisonic Technologies Co., LTD (1) T: Tube (2) D14 : DIP-14 (3) G: Halogen Free, L: Lead Free 1 of 4 QW-R103-006.B UC723 LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM V+ (Un regulated input) 11 12 1k 500 25k 1k 6.2V 15k NC 1 NC 8 5pF 100 NC 14 30k 5k 6.2V 300 20k 6 Vref UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 10 V0 9 V2 13 Frequency Compensation 150 5 7 4 3 2 NonInverting Current Current inverting V- input Sense Limit input 2 of 4 QW-R103-006.B UC723 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (TA=25C) PARAMETER SYMBOL VALUE UNIT Supply Voltage(between V+ and V-) VCC 40 V Pulse Voltage for 50ms VPULSE 50 V Differential Input-Output Voltage VD 40 V Different Input Voltage VID 5 V (Between inverting and non-inverting inputs) Different Input Voltage VID 8 V (Between Non-inverting Input and V-) Current from Zener Diode Terminal IZ 25 mA Power Dissipation PD 900 mW Operating Temperature TOPR 0 ~ 70 C Storage Temperature TSTG -40 ~ 150 C Junction Temperature TJ 125 C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ELECTRICAL CHARACTERISTICS (TA=25C, V+=VC=VIN=12V, VOUT=5V, IL=1mA, C1=100Pf, CREF=0, RSCP=0, unless otherwise specified, divider impedance R1*R2 / (R1+R2) at non-inverting input, terminal 5=10K) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Quiescent Regulator Current ICCQ IL=0, VIN=30V 2.3 3.5 mA Input Voltage Range VIN 9.5 40 V Output Voltage Range VOUT 2 37 V Differential Input-Output Voltage VIN-VOUT 3 38 V Reference Voltage VREF 6.95 7.15 7.35 V VIN=12V ~ 40V 0.6 1 %VO Line Regulation (Note 1) VOUT VIN=12V ~ 15V 0.01 0.1 VIN=12V ~ 15V, TA=-55~125C IL=1mA ~ 50mA 0.03 0.15 %VO Load Regulation (Note 1) VOUT IL=1mA ~ 50mA, TA=-55 ~ 125C 0.6 Output Voltage Temperature Coefficient VOUT TA=-55~125C 0.002 0.015 %/C f=50Hz ~ 10KHz 74 Ripple Rejection (Note 2) RR f=50Hz ~ 10KHz, CREF=5F 86 dB TMIN<TTYP<TMAX 2.5 Short Circuit Limiting Current ILIM RSCP=10, VOUT=0 65 mA BW=100Hz ~ 10KHz, CREF=0 -20 Equivalent Noise RMS output Voltage VN V (Note 2) BW=100Hz ~ 10KHz, CREF=5F 2.5 Note 1: Line and load regulation specifications are given for conditions of a constant chip temperature. For high dissipation condition, temperature drifts must be separately taken in account. 2: For CREF, see Fig. 1 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 4 QW-R103-006.B UC723 LINEAR INTEGRATED CIRCUIT APPLICATION CIRCUIT R3 VIN VIN 12 Vref 11 12 10 6 Rscp VOUT 11 10 6 2 R1 UTC UC723 Rscp UTC UC723 3 5 3 5 R1 4 4 R2 7 13 C1 0.001F Regulator Output Voltage=5V Line Regulation (VIN=3V)=0.5mV Load Regulation (IL=1A)=5mA Fig. 3 Positive Voltage Regulator circuit (with external p-n-p pass transistor) VOUT 2 7 R2 13 C1 100pF Regulator Output Voltage=15V Line Regulation (VIN=3V)=1.5mV Load Regulation (IL=1A)=15mA Fig. 4 Positive Voltage Regulator circuit (with external n-p-n pass transistor) UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 4 QW-R103-006.B