CHT-LDOS-050

CISSOID The SOI design Specialists CHT-LDOS High-Temperature, 2.5V; 3.3V; 5V; 5.5V; 9V; 10V; 12V; 13V or 15V, 1A, Low-Dropout SOI-CMOS Voltage Regulator for symmetrical voltage applications. General Description The CHT-LDOS is a 1A, low-dropout linear voltage regulator compatible with hightemperature environments. Typical operation temperature range extends from -30° to 225° C C. The circuit is stable throughout the whole temperature range and under a large choice of capacitive loads. The minimum dropout voltage (Vin-Vout) is 2V with a 1A load current at 225°C and 1V for load currents lower than 400mA. The dropout voltage can span from 1 Volts to (1) 20 Volts . The circuit is a one-die solution. CHT-LDOS is available in die and packages (currently TO-3 and TO-254) on demand. Related documents: • AN-06016: “Selecting correct CISSOID regulator depending on your application” • AN-06002: “Voltage regulator shortcircuit protection and associated potential startup problem”. • • Preliminary datasheet Version 1.0 (05/2006) Features • • • • • • • • 1V to 20V dropout Voltage @400mA 2V to 20V dropout Voltage @1A Max 1A output current @ 225° C 60dB input ripple rejection (0-100Hz) Cload from 100nF to 1000µF, large ESR range Available on die or in custom package on demand. (3-pins compatible) Stand-by mode available. (4-pins) Tungsten interconnects for long-term reliability The start-up is operative over the whole temperature range Latch-up free (1) (1) Available voltages: • • • • • • • • • CHT-LDOS-025: CHT-LDOS-033: CHT-LDOS-050: CHT-LDOS-055 : CHT-LDOS-090 : CHT-LDOS-100 : CHT-LDOS-120: CHT-LDOS-130: CHT-LDOS-150: 2.5V 3.3V 5.0V 5.5V 9.0V 10.0V 12.0V 13.0V 15.0V Applications Power supplies for high-temperature electronic systems used in Well logging, Automotive, Aeronautics or Aerospace applications. Typical application VNOM+2V Cin Vin GND Vout VNOM Cout CHT-LDO CHT-LDO CHT-LDOS CHT-LDOS - Preliminary datasheet Absolute Maximum Ratings Supply Voltage Vin (2) Junction Temperature (Tj) (3) Power dissipation -0.3V…40V 315° C Operating Conditions Supply Voltage Junction temperature (3) Power Dissipation 1V to 20V dropout -30° to 225°C C (1) ESD Rating (expected) Human Body Model >1kV Electrical Characteristics Following table is relative to the 5V mode (CHT-LDOS-050). For other nominal voltage, see notes under this table. Vin = Vout + 2V Parameter Condition Min Typ Max 2 80 1 0.04 0.1 Output voltage accuracy Output voltage T° drift Output voltage line regulation IL=10mA -30°