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