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AT1796
Preliminary Product Information
150kHz, 3A Step-Down Switching Regulator
Application Data :
7F, No.9, PARK AVENUE II, Science-Based Industrial Park, Hsinchu 300,Taiwan, R.O.C.
Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW:
http://www.aimtron.com.tw
2/15/2006 REV : 1.1 Email:
service@aimtron.com.tw
10
Quick Design Component Selection Table
Input/Output Condition
Output Capacitor(
μ
F/V)
Inductor
Through Hole electrolytic Surface Mount Tantalum
Nichicon
PL Series
HFQ Series
Output
Voltage
(V)
5
Load
Current
(A)
3
Max. Input
Voltage
(V)
8
15
25
9
15
25
5
12
25
6
12
25
Inductance
(
μ
H)
Current
(A)
Panasonic
Sprague
595D Series
AVX TPS
Series
22
33
47
22
68
68
22
22
33
22
33
47
3.5
3.5
3.5
3.1
3.1
3.1
3.5
3.5
3.5
3.1
3.1
3.1
560/25
330/35
270/35
560/16
180/35
180/35
560/16
560/25
470/35
470/35
330/35
270/50
560/25
330/35
330/35
470/25
180/35
180/35
470/25
560/35
680/35
470/25
330/35
330/35
330/10
330/10
330/10
330/10
270/10
270/10
390/6.3
390/6.3
390/6.3
390/6.3
390/6.3
330/10
220/10
220/10
220/10
220/10
100/10
100/10
330/6.3
330/6.3
330/6.3
330/6.3
330/6.3
220/10
2
3
3.3
2
Quick Design Component Selection Table for Adjustable Output
Through Hole Output Capacitor
Output
Voltage
(V)
Panasonic
HFQ Series
(
μ
F/V)
(
μ
F/V)
2
820/35
820/35
4
560/35
470/35
6
470/25
470/25
9
330/25
330/25
12
330/25
330/25
15
220/35
220/35
24
220/35
150/35
Surface Mount Output Capacitor
Nichicon
PL Series
Feedforward
Capacitor
Panasonic
HFQ Series
(
μ
F/V)
330/6.3
330/6.3
220/10
100/16
100/16
68/20
33/25
Nichicon
PL Series
(
μ
F/V)
470/4
390/6.3
330/10
180/16
180/16
120/20
33/25
Feedforward
Capacitor
33nF
10nF
3.3nF
1.5nF
1nF
680pF
560pF
33nF
10nF
3.3nF
1.5nF
1nF
680pF
220pF
Diode Selection Table
VR(V)
3A Diode
4~6A Diode
Surface Mount
Schottky
SK32
Through Hole
Schottky
1N5820
SR302
MBR320
1N5821
MBR330
31DQ03
1N5822
SR304
MBR340
31DQ04
SR305
MBR350
31DQ05
MUR320
Surface Mount
Schottky
Through Hole
Schottky
1N5823
SR502
SB520
1N5824
SR503
SB530
1N5825
SR504
SB540
20
30
30WQ03
SK33
50WQ03
40
SK34
MBRS340
30WQ04
50WQ04
50
SK35
MBRS360
30WQ05
MURS320
30WF10
50WQ05
50WF10
SB550
50SQ080
MUR620
HER601