ap1533 Diodes, Inc., ap1533 Datasheet - Page 3

• Manufacturer Part Number: ap1533
• Description: Pwm Control 1.8a Step-down Converter
• Manufacturer: Diodes, Inc.

Block Diagram
Absolute Maximum Ratings
Caution:
Recommended Operating Conditions
AP1533 Rev. 1
Symbol
Symbol
V
V
V
V
T
P
T
OUT
I
CC
EN
ST
FB
V
OUT
T
D
J
IN
These values must therefore not be exceeded under any conditions.
A
The absolute maximum ratings are rated values exceeding which the product could suffer physical damage.
V
CC
V
Feedback Pin Voltage
EN Pin Voltage
Switch Pin Voltage
Power Dissipation
Operating Junction Temperature Range
Storage Temperature Range
CC
Pin Voltage
Input Voltage
Output Current
Operating Ambient Temperature
Shutdown
Parameter
Thermal
Parameter
Output
www.diodes.com
PWM CONTROL 1.8A STEP-DOWN CONVERTER
3 of 8
EN
Oscillation
Circuit
PWM-Switched
Control Circuit
V
EN
OCSET
90uA
Min
Voltage Source
-25
V
V
V
4
0
SS
SS
SS
Reference
Internally limited
V
SS
- 0.3 to V
- 0.3 to V
- 0.3 to V
-20 to +125
-65 to +150
Rating
- 0.3 to V
+
-
Max
1.8
23
85
SS
IN
IN
+ 0.3
+ 0.3
CC
+ 24
©
AP1533
Diodes Incorporated
FB
V
SS
JULY 2007
Unit
o
V
A
C
Unit
mW
o
o
V
V
V
V
C
C