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CHT-LDOS Datasheet, PDF (1/5 Pages) List of Unclassifed Manufacturers – 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.
CISSOID The SOI design Specialists
CHT-LDOS
Preliminary datasheet
Version 1.0 (05/2006)
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 high-
temperature environments. Typical
operation temperature range extends from
-30°C to 225°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
20 Volts(1).
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 short-
circuit protection and associated
potential startup problem”.
Applications
Power supplies for high-temperature
electronic systems used in Well logging,
Automotive, Aeronautics or Aerospace
applications.
Features
• 1V to 20V dropout Voltage @400mA(1)
• 2V to 20V dropout Voltage @1A(1)
• 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
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
Typical application
VNOM+2V
Cin
Vin
Vout
CCHHTT-L-LDDOOS
GND
VNOM
Cout
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