Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP05SRDB-10E
4.5V – 13.2V Input / 1.0V – 5.0V Output / 10A
0.9 0.91 0.92 0.93 0.94 0.95 0.96 0.97 0.98 0.99 1
0.01
30.01
60.01
90.01
120.01
150.01
180
210
240
270
Adjusted output voltage Vo,adj (V)
Trim resistor value Rtrim_down(Kohm)
1 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.1
0.01
30.01
60.01
90.01
120.01
150.01
180
210
240
270
Adjusted output voltage Vo,adj(V)
Trim resistor value,Rtrim_up(Kohm)
Kohm
adjVoVo
down
trim )17.4
,
658.0
(_ −
−
=
Kohm
VoadjVo
upRtrim )1
,
536.2
(_ −
−
=
1.08 1.09 1.1 1.12 1.13 1.14 1.15 1.16 1.18 1.19 1.2
0.01
30.01
60.01
90.01
120.01
150.01
180
210
240
270
Adjusted output voltage Vo,adj (V)
Trim resistor value Rtrim_down(Kohm)
1.2 1.21 1.22 1.24 1.25 1.26 1.27 1.28 1.3 1.31 1.32
0.01
30.01
60.01
90.01
120.01
150.01
180
210
240
270
Adjusted output voltage Vo,adj(V)
Trim resistor value,Rtrim_up(Kohm)
Kohm
adjVoVo
down
trim )48.8
,
562.1
(_ −
−
=
Kohm
VoadjVo
upRtrim )64.4
,
072.3
(_ −
−
=
SRDB-10E12x Trim Resistor Calculation
SRDB-10E10x Trim Resistor Calculation
Output Voltage Set-Point Adjustment
page 16
