ACE721B
1.3A 1.4MHz Synchronous Step-Down Converter
Absolute Maximum Ratings
Parameter
Supply Voltage
EN, V
FB
Voltages
SW Voltage
Peak SW Sink and Source Current
Power Dissipation T
A
=25℃
Operation Temperature
Storage Temperature Range
Symbol
V
IN
V
EN
V
SW
I
PK
P
D
T
OPR
T
STG
Value
-0.3 to 6
-0.3 to V
IN
-0.3 to V
IN
+0.3
3
0.606
-40 to 85
-65 to 150
Unit
V
V
V
A
W
℃
℃
Packaging Type
DFN2*2-6L
(TOP VIEW)
DFN2*2-6L Description
1
2
3
4
5
6
7
GND
EN
VIN
SW
GND
FB/VOUT
EP
Function
Ground pin
Chip Enable Pin. Drive EN above 1.5V to turn on the part. Drive RUN below
0.3V to turn it off. Do not leave RUN floating.
Supply input pin.
Power Switch Output. It is the switch node connection to Inductor.This pin
connects to the drains of the internal P-ch and N-ch MOSFET switches.
Ground pin
Adjustable version feedback input. Connect FB to the center point of the
external resistor divider. The feedback threshold voltage is 0.6V.
Power Ground exposed pad, Must be connected to bare copper ground
plane
VER 1.2
2
ACE [ ACE TECHNOLOGY CO., LTD. ]
