UTC UZ1084 LINEAR INTEGRATED CIRCUIT 5A ADJUSTABLE/FIXED LOW DROPOUT LINEAR REGULATOR DESCRIPTION 1 The UTC UZ1084-ADJ/Fixed voltage are low dropout three-terminal regulators with 5A output current capability. These devices have been optimized for low voltage applications including VTT bus termination, where transient response and minimum input voltage are critical. On-chip thermal limiting provides protection against any combination of overload and ambient temperature that would create excessive junction temperatures. 2 12 3 3 TO-263 FEATURE TO-220 1 *Fast transient response *Low dropout Voltage at up to 5A *Load regulation : 0.5% typical *On-chip thermal limiting 23 TO-252 APPLICATIONS 1: ADJ/GND *Desktop PCs, RISC and embedded processors’ supply *GTI, SSTL logic Reference bus supply *Low voltage VCC logic supply *Battery-powered circuitry *Post regulator for switching supply *Cable and ADSL modems’ DSP core supply *Set Top Boxes and Web Boxes modules’ supply 2: VOUT 3: VIN TYPICAL APPLICATION CIRCUIT Adjustable Voltage Regulator UZ1084-ADJ VOUT VIN VIN=5V VOUT=2.5V at 5A ADJ + 10μF 124 Ω + 22μF 124 Ω UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R102-010,A UTC UZ1084 LINEAR INTEGRATED CIRCUIT Fixed Voltage Regulator UZ1084-1.5 VIN VIN=3.3V + 10μF VOUT GND + 22μF VOUT=1.5 V at 5A ABSOLUTE MAXIMUM RATINGS PARAMETER Input Supply Voltage Operating Junction Temperature Range Storage Temperature Range Lead Temperature (soldering, 10 seconds) SYMBOL MAX UNIT VIN TJ TSTG TLEAD 7 0 ~ 125 -65 ~ 150 300 V °C °C °C UTC UZ1084-ADJ(ADJUSTABLE) ELECTRICAL CHARACTERISTICS (Operating Conditions : 4.75≦VIN≦5.25,Tj=25℃ unless otherwise specified) PARAMETER Reference Voltage Line Regulation Load Regulation Dropout Voltage Current Limit Adjust Pin Current Minimum Load Current Quiescent Current Thermal Resistance, Junction to Case Thermal shutdown CONDITIONS lO=10mA lO=10mA 10mA≦lO≦5A △VREF%=2%,lO=5A (VIN-VOUT)=2V MIN. TYP. MAX. UNIT 1.23 1.25 0.5 0.5 1.27 2 2.5 1.5 V % % V A µA mA mA °C/W °C 5.5 35 10 4 3 150 1.5V≦(VIN-VOUT)≦5.75V VIN=5V 100 UTC UZ1084-X.X(FIXED VOLTAGE) ELECTRICAL CHARACTERISTICS (Operating Conditions : 4.75≦VIN≦5.25,Tj=25℃ unless otherwise specified) PARAMETER Output Voltage Line Regulation Load Regulation Dropout Voltage Current Limit Minimum Load Current Quiescent Current Thermal Resistance, Junction to Case Thermal shutdown UTC CONDITIONS lO=10mA lO=10mA 10mA≦lO≦5A △Vref%=2%,lO=5A (VIN-VOUT)=2V 1.5V≦(VIN-VOUT)≦5.75V VIN=5V MIN. TYP. MAX. 1.475 2.450 3.234 1.5 2.5 3.3 0.5 0.5 1.525 2.550 3.366 2 2.5 1.5 5.5 10 4 3 150 UNISONIC TECHNOLOGIES CO., LTD. UNIT V % % V A mA mA °C/W °C 2 QW-R102-010,A UTC UZ1084 LINEAR INTEGRATED CIRCUIT TYPICAL PERFORMANCE CHARACTERIISTICS POWER (W) 20 10 15 5 0 25 45 65 85 105 125 CASE TEMPERATURE UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R102-010,A