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| UTC 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 to 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 to 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% DIP-14 BLOCK DIAGRAM UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R103-006,A UTC UC723 LINEAR INTEGRATED CIRCUIT SYMBOL Vcc Vpulse Vd Vid Vid Iz Pd Topr Tstr ABSOLUTE MAXIMUM RATINGS(Ta=25C ) PARAMETER Supply Voltage(between V+ and V-) Pulse Voltage for 50ms Differential Input-Output Voltage Different Input Voltage (Between inverting and non-inverting inputs) Different Input Voltage (Between Non-inverting Input and V-) Current from Zener Diode Terminal Power Dissipation Operating Temperature Storage Temperature 8 25 900 -55 ~ 125 -65 ~ 150 V mA mW VALUE 40 50 40 +-5 UNIT V V V V C C ELECTRICAL CHARACTERISTICS(Ta=25C, V+=Vc=Vi=12V, Vo=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 Quiescent Regulator Current Input Voltage Range Output Voltage Range Differential Input-Output Voltage Reference Voltage Line Regulation (note 1) VREF VO VI=12V to 40V VI=12V to 15V VI=12V to 15V, Ta=-55~125C Load Regulation (note 1) Output Voltage Temperature Coefficient Ripple Rejection (note 2) RR f=50Hz to 10KHz f=50Hz to 10KHz, Cref=5F Tmin ICCQ VI VO VI-VO TEST CONDITIONS IL=0, VI=30V MIN 9.5 2 3 TYP 2.3 MAX 3.5 40 37 38 UNIT mA V V V 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. NOTE 2: For Cref, see Fig. 1 UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R103-006,A UTC UC723 APPLICATION CIRCUIT LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R103-006,A UTC UC723 LINEAR INTEGRATED CIRCUIT TYPICAL PERFORMANCE CHARACTERISTICS UTC UNISONIC TECHNOLOGIES CO., LTD. 4 QW-R103-006,A |
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