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CHT-LDOS - Preliminary datasheet
Version 1.0 (17/05/2006)
http://www.cissoid.com
2
Absolute Maximum Ratings
Supply Voltage Vin
-0.3V…40V
Junction Temperature(2) (Tj)
315°C
Power dissipation (3)
ESD Rating (expected)
Human Body Model
>1kV
Operating Conditions
Supply Voltage
1V to 20V dropout(1)
Junction temperature
-30°C to 225°C
Power Dissipation (3)
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
Units note
Output voltage
accuracy
IL=10mA
-30°C <Tj <225°C
-2
0
2
%
Output voltage T°
drift
IL=10mA
25°C <Tj <225°C
0
40
80
ppm
(4)
Output voltage line
regulation
dropout=2V to 15V
IL=60mA, -30°C <Tj <225°C
-1
1
mV/V
(5)
Output voltage load
regulation
(i.e. Rout)
IL=10mA to 1A @2V dropout
-30°C <Tj <225°C
0.04
0.1
V/A
(6)
IL
≤400mA, -30°C <Tj <225°C
1
V
(Vin-Vout)
(droupout)
IL=1A, -30°C <Tj <225°C
2
V
Quiescent Ground
Pin current
0 < IL <1A
-30°C
225°C
3.2
2.9
mA
(7)
Power supply
rejection ratio
f=0Hz ..100Hz
Iload=100mA
tbd
dB
(8)
Foldback current
2.5
A
Short-circuit current
20°C <Tj <225°C
300
mA
Output noise
10Hz-10kHz
IL=100mA,
-30°C <Tj
<225°C
tbd
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-to-
case” 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)….
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