CMPWR280TO datasheet(10/10 Pages) CALMIRCO

10 / 10 page

CALIFORNIA MICRO DEVICES

3/00

215 Topaz Street, Milpitas, California 95035

Tel: (408) 263-3214

Fax: (408) 263-7846

www.calmicro.com

CMPWR280

Fig 3.2. Output Voltage (Rated) vs. Temperature. This

shows the regulator steady state performance when fully

loaded (1.5A) in an ambient temperature up to the rated

maximum of 70°C. The output variation at maximum load is

about 13mV across the normal temperature operating.

Fig 3.3. Thresholds vs. Temperature. This shows the

regulator select/deselect threshold variation up to the

maximum rated junction temperature. The overall 125°C

change in junction temperature causes a 30mV variation in

the select threshold voltage (regulator enable). The deselect

threshold level varies about 30mV over the 125°C change in

junction temperature. The hysteresis remains essentially

constant over the entire temperature range.

Typical Thermal Characteristics contd

Fig 3.3. Thresholds vs. Temperature

4.1

4.2

4.3

4.4

4.5

4.6

4.7

4.8

-25

100

125

150

Junction Temperature [°C]

Vselect

Vdeselect

Fig 3.2. Output Voltage (Rated) vs.

Temperature

3.260

3.280

3.300

3.320

3.340

2030

4050

6070

Ambient Temperature [° C]

1.5A load

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