CHT-LDOS-120 datasheet(2/5 Pages) ETC1

Part #	CHT-LDOS-120

Description	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.

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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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