Instruction Manual

AP1184
4A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE OR
FIXED-MODE REGULATOR
AP1184 Rev. 5 8 of 12 SEPTEMBER 2008
www.diodes.com © Diodes Incorporated
Performance Characteristics
Output Current (A)
V control Dropout Voltage vs Output Current
Vcontrol Dropout Voltage (mV)
800
900
1000
1100
1200
Vpower = 2.05 V
Tj = 20
o
C
Tj = 120
o
C
0
0.5
1.0
1.5
2.0
2.5 3.0 3.5 4.0
Output Current (A)
V power Dropout Voltage vs Output Current
0
Vpower Dropout Voltage (mV)
0
0.5
1.0
1.5 2.0
2.5
3.0 3.5 4.0
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
Vcontrol = 2.75 V
Tj = 120
o
C
Tj = 20
o
C
Junction Temperature (
o
C)
Reference Voltage vs Junction Temperature
1. 247
1. 248
1. 249
1. 250
Reference Voltage (V)
1. 251
1. 252
1. 253
0
20
40 60 80 100 120
Output Current (A)
Load Regulation vs Output Current
Load Regulation (%)
0
0. 02
0. 04
0. 06
0. 08
0. 10
0. 12
0. 14
0. 15
Tj = 20
o
C
Tj = 120
o
C
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0