Instruction Manual

AP1184
4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
AP1184 Rev. 5 3 of 12 SEPTEMBER 2008
www.diodes.com © Diodes Incorporated
(1) Adjustable Regulator
Tab is Vout
Vout
Vsense
Adj
Vctrl
Vin
470µF
3.3V
5V
470µF
470µF
2.5V/ 4A
121
121
R1
R2
Ω
Ω
)
1
R
2
R
1(
REF
V
OUT
V:Note +×=
(2) 3.3V to 2.5V Fixed Mode Regulator
Tab is Vout
Vout
Vsense
GND
Vctrl
Vin
470µF
3.3V
5V
470µF
470µF
2.5V/ 4A
Absolute Maximum Ratings
Symbol Parameter Rating Unit
V
IN
Input Voltage 16 V
V
ctrl
Control Input voltage 18 V
P
D
Power dissipation Internally limited
T
ST
Storage temperature Range -65 to +150
o
C
T
OP
Operation Junction Temperature Range 0 to +125
o
C
Typical Application Circuit