LT3015

1

3015f

TYPICAL APPLICATION

FEATURES

DESCRIPTION

1.5A, Low Noise,

Negative Linear Regulator

with Precision Current Limit

regulator with fast transient response. The device supplies

up to 1.5A of output current at a typical dropout voltage

of 310mV. Operating quiescent current is typically 1.1mA

and drops to < 1μA in shutdown. Quiescent current is also

well controlled in dropout. In addition to fast transient

response, the LT3015 exhibits very low output noise,

making it ideal for noise sensitive applications.

The LT3015 regulator is stable with a minimum 10μF output

capacitor. Moreover, the regulator can use small ceramic

capacitors without the necessary addition of ESR as is

common with other regulators. Internal protection circuitry

includes reverse output protection, precision current limit

with foldback and thermal limit with hysteresis.

The LT3015 is available as an adjustable device with a

–1.22V reference voltage. Packages include the 5-lead

TO-220 and DD-Pak, a thermally enhanced 12-lead MSOP

and the low profile (0.75 mm) 8-lead 3mm

× 3mm DFN.

–5V, –1.5A, Low-Noise Regulator

APPLICATIONS

12-Lead MSOP and 8-Lead 3mm

× 3mm × 0.75mm

DFN Packages

L, LT, LTC, LTM, ThinSOT, Linear Technology and the Linear logo are registered trademarks of

Linear Technology Corporation. All other trademarks are the property of their respective owners.

GND

ADJ

OUT

SHDN

IN

LT3015

10μF

10μF

3.40k

1%

10.5k

1%

–5V

–1.5A

–5.5V TO

–30V

3015 TA01

Dropout Voltage

LOAD CURRENT (A)

0

0

400

350

300

250

200

150

100

50

450

–0.8 –1.0 –1.2 –1.4 –1.6

–0.2 –0.4

3015 TA01a

–0.6

DD-PAK/TO-220

DFN/MSOP