ETC1 CHT-LDOS-120 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. Datasheet

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
Features
The CHT-LDOS is a 1A, low-dropout linear
voltage regulator compatible with hightemperature
environments.
Typical
operation temperature range extends from
-30°C to 225°C.
•
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
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 .
(1)
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
The circuit is a one-die solution.
reliability
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”.
Applications
Power supplies for high-temperature
electronic systems used in Well logging,
Automotive, Aeronautics or Aerospace
applications.
Typical application
(1)
VNOM+2V
Cin
•
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:
Vin
Vout
CHT-LDO
CHT-LDOS
GND
2.5V
3.3V
5.0V
5.5V
9.0V
10.0V
12.0V
13.0V
15.0V
VNOM
Cout
CHT-LDOS - Preliminary datasheet
Absolute Maximum Ratings
Supply Voltage Vin
(2)
Junction Temperature (Tj)
(3)
Power dissipation
Operating Conditions
-0.3V…40V
315°C
ESD Rating (expected)
Human Body Model
(1)
Supply Voltage
Junction temperature
(3)
Power Dissipation
1V to 20V dropout
-30°C to 225°C
>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
Output voltage
accuracy
Output voltage T°
drift
Output voltage line
regulation
Condition
IL=10mA
-30°C <Tj <225°C
IL=10mA
25°C <Tj <225°C
dropout=2V to 15V
IL=60mA, -30°C <Tj <225°C
Output voltage load
regulation
(i.e. Rout)
IL=10mA to 1A @2V dropout
-30°C <Tj <225°C
(Vin-Vout)
(droupout)
Quiescent Ground
Pin current
IL≤400mA, -30°C <Tj <225°C
IL=1A, -30°C <Tj <225°C
0 < IL <1A
-30°C
225°C
f=0Hz ..100Hz
Iload=100mA
Power supply
rejection ratio
Foldback current
Short-circuit current
Output noise
20°C <Tj <225°C
10Hz-10kHz
IL=100mA,
-30°C
<225°C
Units
note
80
ppm
(4)
1
mV/V
(5)
0.1
V/A
(6)
V
V
mA
(7)
dB
(8)
Min
Typ
Max
0
40
-2
0
-1
0.04
2
1
2
tbd
<Tj
3.2
2.9
2.5
300
tbd
%
A
mA
µVRMS
Notes:
(1) Vin max=30V
(2) Above 225°C (Tj), a minimum load current of few mA could be required.
(3) Max Power dissipation depends on packaging. CHT-LDOS in TO-3 or TO-254 packages presents a “junction-tocase” thermal resistance of maximum 5°C/W (Rth).
(4) ppm are defined as [d(Vout)/d(T)]/Vout. For 5V mode, 40ppm corresponds to 200µV/°C.
(5) Defining “x” as the nominal voltage, the line regulation is better than x/5 mV/V.
(6) This includes the packaging parasitic resistor.
(7) Defining “x” as the nominal voltage, the typical quiescent current at 2V dropout can be approximated as
2.8+x/13 mA @ -30°C and 2.5+x/13 mA at 225°C.
(8) Defining “x” as the nominal voltage, the minimum power supply rejection ratio is …(tbd)….
Version 1.0 (17/05/2006)
http://www.cissoid.com
2
CHT-LDOS - Preliminary datasheet
Output Load, recommended specifications
CHT-LDOS
Resistances in series with capacitors represent the internal ESR of these capacitors.
For large capacitors:
CB= 0 to 1000µF
RB= 0.2 to ∞ Ω
For medium capacitors:
CM= 0 to 6µF
RM=0.1 to 1 Ω
For small Capacitors:
CS= 100n to 220nF
RS=10m to 50m Ω
Start-up conditions
The start-up is operative over the whole temperature range.
Refer to our application note for more details when using symmetrical voltages.
• AN-06016: “Selecting correct CISSOID regulator depending on your application”
• AN-06002: “Voltage regulator short-circuit protection and associated potential startup
problem”.
Version 1.0 (17/05/2006)
http://www.cissoid.com
3
CHT-LDOS - Preliminary datasheet
Measurements (CHT-LDOS-150)
Note: Temperatures hereafter are ambient temperatures, not junction temperatures.
16
14
VOUT (V)
25°
40°
C
100°
C
150°
C
200°
C
C
225°
C
12
10
15.2
VOUT (V)
225°
C
15.1
200°
C 150°
C
100°
C
15
8
6
4
25°
C
14.9
2
0
0
225°
C
40°C
ILoad (A)
0.5
1
1.5
2
2.5
Figure 1: Vout vs. ILoad @ 2V dropout
0.4
0.35
40°C
ILoad (A)
14.8
0
0.5
1
1.5
2
2.5
Figure 2: Zoom on figure 1
15.15
ISC (A)
VOUT (V)
15.1
0.3
0.25
15.05
0.2
15
0.15
0.1
14.95
0.05
T(°C)
0
-50
0
50
100
150
200
250
Figure 3: Typical short-circuit current vs. T°
15.2
T(°C)
14.9
-50
50
150
250
Figure 4: Vout vs. T° (2V dropout, 3 samples)
VOUT (V)
225°
200°
C
C
150°
100°
C
C
25°
C
15.1
15
40°C
14.9
VIN (V)
14.8
15
17
19
21
23
25
27
29
Figure 5: Vout vs. Vin over T°
0 .0 0 45
Tbd
Should be very similar to CHT-LDO datasheet
Figure 6: Input ripple rejection
Iquiescent (A)
0 .0 0 43
40°C
0 .0 0 41
25°
C
0 .0 0 39
0 .0 0 37
100°
C
Tbd
Should be very similar to CHT-LDO datasheet
200°
225°
C
C
VIN(V)
0 .0 0 35
16
18
20
22
24
Figure 7: IQuiescent vs. Vin over T°
Version 1.0 (17/05/2006)
26
28
30
Figure 8: SVout(V²/Hz) @25°C, ILoad=100mA
http://www.cissoid.com
4
Tbd
Should be very similar to CHT-LDO datasheet
Figure 9: Typical max load current over T° vs. dropout
AC rejection, noise and maximum load current vs. dropout measurements have not been
performed yet on CHT-LDOS family. However, based on simulation results, measurements
result should be very similar to those presented in our CHT-LDO family datasheet.
Available packaging and pinout.
TO-3: (Bottom View)
TO-254:
Not Connected.
TO-254
GND
CASE
CISSOID
CHT-LDO-XXX
VIN
VOUT
15
0.
Vin
in
Vout
gnd
Bottom View
Contact & Ordering
CISSOID S.A.
Chemin du Cyclotron 6
1348 Louvain-la-Neuve
Belgium
Tel : +3210489210
[email protected]
Fax : +3210489219
http://www.cissoid.com
Product Reference : CHT-LDOS-XXX-YYYY
XXX= Output voltage. Example : 3.3V=033 ; 5V =050 ; 15V=150
YYYY=Package. TO3 or TO254 or DIE
Ex: CHT-LDOS-050-TO3 = 5V voltage regulator with TO3 package
Disclaimer
Neither CISSOID, nor any of its directors, employees or affiliates make any representations or extend any warranties
of any kind, either express or implied, including but not limited to warranties of merchantability, fitness for a particular
purpose, and the absence of latent or other defects, whether or not discoverable. In no event shall CISSOID, its
directors, employees and affiliates be liable for direct, indirect, special, incidental or consequential damages of any
kind arising out of the use of its circuits and their documentation, even if they have been advised of the possibility of
such a damage. The circuits are provided “as is”. CISSOID has no obligation to provide maintenance, support,
updates, or modifications.
Similar pages