Advanced Analog Technology, Inc.
April 2007
AAT1164/AAT1164B/AAT1164C
FUNCTION BLOCK DIAGRAM
AAT1164/AAT1164B
2
22
VREF
VDD
Fail/ Thermal
Control
Fail
1.233V
Reference Voltage
1.25V
0.25V
SW
Error Amplifier
21
4
IN1
23
24
1. 233V
Digital Control Block
1
GND
EO
Comparator
Current Sense
and Limit
GND
GND2
OUT2
Oscillator
3
11
28
IN2
IN3
27
25
0.25V
OUT3
26
1.25V
VI1-
6
VO1
VO2
VO3
5
8
VI1+
7
9
VI2-
VI2+
10
12
VI3+
13
17
20
14
VI4-
16
VO4
VI4+
15
19
VI5-
VO5
VI5+
18
29
DLY
CTL
VDD1
High Voltage Control
30
31
VOUT3
ADJ
1
VGH
32
–
–
–
Advanced Analog Technology, Inc
Version 1.00
. –
Page 12 of 24