ACE707A

Micro Power Step-up DC-DC Converter

 

VER 1.2

2

Absolute Maximum Ratings

Parameter

Symbol

Max

Unit

Input voltage

15

V

SW Voltage

36

V

FB Voltage

V

SHDN Pin Voltage

15

V

Thermal Resistance (Junction to Ambient, no Heat sink)

265

℃

/W

Operating Junction Temperature

150

℃

Storage Temperature Range

Lead Temperature (Soldering, 10sec)

260

℃

ESD (Human Body Model)

3000

V

Note 1: 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.

Packaging Type

SOT-23-5

5

4

1

2

3

Pin

SOT-23-5

Function

SW

1

Switch Pin. This is the collector of the internal NPN power switch. Minimize the

trace area connected to this Pin to minimize EMI

GND

2

Ground Pin. GND should be tied directly to ground plane for best performance

FB

3

Feedback Pin. Set the output voltage through this pin. The formula is

VOUT=1.23V*(1+R1/R2). Keep the loop between Vout and FB as short as possible

to minimize the ripple and noise, which is beneficial to the stability and output ripple

SHDN

4

Shutdown Control Pin. Tie this pin above 0.9V to enable the device. Tie below

0.25V to turn off the device

5

Supply Input Pin. Bypass this pin with a capacitor as close to the device as possible