AP3419

Document number: DS36543 Rev. 3 - 2

3 of 9

www.diodes.com

August 2015

© Diodes Incorporated

AP3419

Functional Block Diagram

1M OSC

SLOPE COMP

FREQ

SHIFT

0.6V REF

S

R

Q

_

Q

EA

_

+

SWITCHING

LOGIC AND

BLOCKING

CIRCUIT

ANTI-

SHOOT

THRU

PWM

COMP

_

+

+

IAMP

FB

EN

VIN

LX

GND

VIN

SHUTDOWN

____

OSC

6

1

4

3

2

Symbol

Parameter

Rating

Unit

Input Voltage

-0.3 to 6

V

EN Pin Voltage

V

LX Pin Voltage

V

Feedback Pin Voltage

V

Thermal Resistance (Junction to Ambient)

220

°C/W

Operating Junction Temperature

+150

°C

Storage Temperature

-65 to +150

°C

Lead Temperature (Soldering, 5 sec)

+300

°C

ESD (Machine Model)

200

V

ESD (Human Body Model)

2000

V

Note 4:

Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied.

Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.