LT3045 datasheet(4/62 Pages) AD

4 / 62 page

Data Sheet

LT3074

analog.com

Rev 0.

4 of 62

(All typical specifications are at TJ(junction temperature). = 25°C and all min. and max. specifications are across

the entire operating temperature range, unless otherwise noted. COUT = 22µF, CSETCAP = 4.7µF, CBIASAF = 2.2µF,

and CBIASDF = 0.47µF, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS/COMMENTS

MIN

TYP

MAX

UNITS

ΔVOUT =

f(ΔVBIAS)

VOUT = 3.3V, ∆VBIAS = 4.5V to 5.5V, VIN =

3.5V, IOUT = 10mA

ISETRES Load Regulation 1

ΔISETRES =

f(ΔIOUT)

VBIAS = 2.375V, VSETRES = VOUT = 1V, VIN =

1.2V,

ΔIOUT= 10mA to 3A

100

VOUT Load Regulation 1

ΔVOUT =

f(ΔIOUT)

ΔIOUT= 50mA to

VBIAS = 2.375V, VIN

= 0.7V, VOUT = 0.5V

0.6

VOUT Load Regulation

ΔVOUT =

f(ΔIOUT)

ΔIOUT= 10mA to

VBIAS = 2.4V, VIN =

1.4V, VOUT = 1.2V

1.2

VBIAS = 4.5V, VIN =

3.5V, VOUT = 3.3V

3.3

VBIAS = 5.4V, VIN =

4.4V, VOUT = 4.2V

4.2

ISETRES Common Mode

Regulation

ΔISETRES =

f(ΔVSETRES)

VIN = 5.5V, VBIAS = 5.5V, 0.5V ≤ VOUT=

VSETRES ≤ 0.8V, IOUT = 50mA

VIN = 5.5V, VBIAS = 5.5V, 0.8V ≤ VOUT=

VSETRES ≤ 4.2V, IOUT = 10mA

200

Output Offset Voltage

Common Mode

Regulation

ΔVOS =

f(ΔVSETRES)

VIN = 5.5V, VBIAS = 5.5V, 0.5V ≤ VOUT=

VSETRES ≤ 0.8V, IOUT = 50mA

0.5

VIN = 5.5V, VBIAS = 5.5V, 0.8V ≤ VOUT=

VSETRES ≤ 4.2V, IOUT = 10mA

0.8

VOUT Margining Accuracy

MFR_MARGIN = 8’h33

±4

±5

±6.5

MFR_MARGIN = 8’h88

±25

±30

±37.5

Dropout Voltage 2

VDO

VIN = VOUT(NOMINAL),

VBIAS ≥ VOUT +

1.2V, IOUT = 1A

TJ = 25°C

VIN = VOUT(NOMINAL),

VBIAS ≥ VOUT +

1.2V, IOUT = 2A

TJ = 25°C

VIN = VOUT(NOMINAL),

VBIAS ≥ VOUT +

1.2V, IOUT = 3A

TJ = 25°C

100

Minimum Load Current

IOUT(MIN)

VOUT ≥ 0.8V

VOUT < 0.8V

Ground Pin Current

IGND

VIN = 1.4V, VOUT =

1.2V, VBIAS = 2.5V

IOUT = 10mA

4.6

7.9

IOUT = 3A

4.9

9.8

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