LT8335

1

8335f

For more information www.linear.com/LT8335

TYPICAL APPLICATION

FEATURES

DESCRIPTION

Inverting Converter

with 2A, 28V Switch

The LT®8335 is a current mode DC/DC converter capable

of generating either positive or negative output voltages

using a single feedback pin. It can be configured as a

boost, SEPIC or inverting converter consuming as low as

6µA of quiescent current. Low ripple Burst Mode opera-

tion maintains high efficiency down to very low output

currents while keeping the output ripple below 15mV in

a typical application. The internally compensated current

mode architecture results in stable operation over a wide

range of input and output voltages. Integrated soft-start

and frequency foldback functions are included to control

inductor current during start-up. The 2MHz operation

combined with the small 8-lead DFN package, enables

low cost, area efficient solutions.

3V to 6V Input, 12V Boost Converter

APPLICATIONS

n

3V to 25V Input Voltage Range

n

Ultralow Quiescent Current and Low Ripple Burst

n

2A, 28V Power Switch

n

Positive or Negative Output Voltage Programming

with a Single Feedback Pin

n

Fixed 2MHz Switching Frequency

n

Programmable Undervoltage Lockout (UVLO)

n

Internal Compensation and Soft-Start

n

Low Profile (0.75mm) 8-Lead (3mm × 2mm) DFN

Package

n

Industrial and Automotive

n

Telecom

n

Medical Diagnostic Equipment

n

Portable Electronics

L

, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks

and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the

property of their respective owners.

Efficiency and Power Loss

EFFICIENCY

POWER LOSS

LOAD CURRENT (mA)

0

100

200

300

400

500

600

0

10

20

30

40

50

60

70

80

90

100

0

200

400

600

800

1000

8335 TA01b

154k

4.7µF

1µF

SW

FBX

GND

EN/UVLO

LT8335

3V TO 6V

12V

INT

1M

1.2µH

22µF

4.7pF

8335 TA01