Data Sheet

LT3073

analog.com

Rev 0.

6 of 37

(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, CREF= 4.7μF, CBIASF = 2.2μF, RMON =

0.8kΩ, unless otherwise noted. )

PARAMETER

SYMBOL

CONDITIONS/COMMENTS

MIN

TYP

MAX

UNITS

VBIAS Ripple Rejection

PSRRBIAS

VBIAS = 2.7V(Avg),

VIN = 1.5V, VOUT =

1.2V

VRIPPLE = 500mVP-P,

fRIPPLE = 1MHz, IOUT

= 3A

70

dB

VIN Ripple Rejection

PSRRIN

VBIAS = 5V, VIN

=1.5V(Avg), VOUT =

1.2V

VRIPPLE = 50mVP-P,

fRIPPLE = 120Hz,

IOUT = 3A

96

dB

VRIPPLE = 50mVP-P,

fRIPPLE = 1MHz, IOUT

= 3A

52

Output RMS Noise 6

VRMS(OUT)

VOUT = 1V, IOUT =

3A, VIN = 1.3V,

VBIAS = 3.3V, COUT =

22μF

BW = 10Hz to

100kHz, CREF =

4.7μF

1.2

μVRMS

BW = 10Hz to

100kHz, CREF =

0.47μF

1.6

Output Noise Spectral

Density 6

Vn(OUT)

VOUT = 1V, IOUT =

3A, VIN = 1.3V,

VBIAS = 3.3V, COUT =

22μF

Frequency =

0.1Hz, CREF =

4.7μF

1.4

µV/√

Frequency =

10Hz, CREF = 4.7μF

40

nV/√

Frequency =

10Hz, CREF =

0.47μF

650

Frequency =

10kHz, CREF =

4.7μF

3

Frequency =

10kHz, CREF =

0.47μF

3

Frequency =

100kHz, CREF =

4.7μF

2.8

Frequency =

100kHz, CREF =

0.47μF

2.8

.

1

To maintain proper performance and regulation, the BIAS supply voltage must satisfy the following conditions:

2.375V ≤ VBIAS ≤ 5.5V and VBIAS ≥ (VOUT + 1.2V).