v7ah-02a330 Bel Fuse Inc., v7ah-02a330 Datasheet - Page 18

• Manufacturer Part Number: v7ah-02a330
• Description: Module Dc-dc 1-out 3.3v 2a 6.6w 5-pin
• Manufacturer: Bel Fuse Inc.

Output Voltage Set-Point Adjustment
x7AH-02A120 Trim Resistor Calculation
page 18
BP04x7AH-02A
©2004 Bel Fuse Inc.
POWER PRODUCTS
where,
where,
Rtrim
Vo is the nominal output voltage setpoint when trim pin is open ,Vo=1.203V
Vo,adj is the adjusted output voltage.
Rtrim-down is the resistance required between TRIM and Vo.
Vo is the nominal output voltage setpoint when trim pin is open ,Vo=1.203V
Vo,adj is the adjusted output voltage.
Rtrim-up is the resistance required between TRIM and GND.
Rtrim
_
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel [phone] • Fax [phone] • www.belfuse.com
down
_
Trim Down Test Circuit
up
Specifications subject to change without notice. 03.04
=
=
Vo
Vo
−
. 1
,
3
Vo
adj
87
.
712
,
adj
−
Vo
−
Trim
Gnd
Vo
. 4
64
Kohm
NON-ISOLATED DC/DC CONVERTERS
12V Input / 0.9V – 5.0V Output / 2A
Kohm
500
452
404
356
308
260
212
164
116
100
68
20
90
80
70
60
50
40
30
20
10
0
1.08 1.09
1.2
Trim Up Test Circuit
1.21
1.22
1.1
Adjusted output voltage Vo,adj (V)
Adjusted output voltage Vo,adj(V)
1.24
1.12 1.13
1.25
1.14
1.26
Trim
Gnd
Vo
1.15 1.16
1.27
1.28
1.18
1.3
1.31
1.19
1.32
1.2