Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP02x7AH-05B
5V Input / 1.2V 3.3V Output / 5A
Nonisolated
Compact, low profile surface mount package
Fixed frequency
High efficiency means less power dissipation
Excellent thermal performance
Optimized for cost
Remote on/off
Undervoltage lockout (UVLO)
Over current and short circuit protection
Description
The Bel S7AH-05B and V7AH-05B modules are a series of non-isolated, step down DC/DC power converters that operate
from a nominal 5V source. These converters are available in a range of output voltages from 1.2V to 3.3V. They are packaged
in a compact, overmolded package rated at 5A. Optional lead forming provides a vertical mount product for minimal footprint
or a surface mount option for a very low profile. Standard features include remote on/off, over current and short circuit
protection, and output voltage adjust. These products may be used almost anywhere low voltage silicon is employed and a
5V source is available. Typical applications include file servers, routers, line cards and other computing and communications
equipment.
Applications
page 1
S7AH-05B / V7AH-05B Series
Distributed power architectures
Data networking equipment
Telecommunications
Computers and peripherals
Part Number Selection
t
u
p
t
u
O
e
g
a
t
l
o
V
t
u
p
n
I
e
g
a
t
l
o
V
t
u
p
t
u
O
.
x
a
M
t
n
e
r
r
u
C
t
u
p
t
u
O
.
x
a
M
r
e
w
o
P
l
a
c
i
p
y
T
y
c
n
e
i
c
i
f
f
E
r
e
b
m
u
N
t
r
a
P
t
n
u
o
M
e
c
a
f
r
u
S
r
e
b
m
u
N
t
r
a
P
t
n
u
o
M
l
a
c
i
t
r
e
V
V
3
.
3
V
5
A
5
W
5
.
6
1
%
2
9
0
3
3
B
5
0
-
H
A
7
S
0
3
3
B
5
0
-
H
A
7
V
V
5
.
2
V
5
A
5
W
5
.
2
1
%
0
9
0
5
2
B
5
0
-
H
A
7
S
0
5
2
B
5
0
-
H
A
7
V
V
8
.
1
V
5
A
5
W
0
.
9
%
6
8
0
8
1
B
5
0
-
H
A
7
S
0
8
1
B
5
0
-
H
A
7
V
V
5
.
1
V
5
A
5
W
5
.
7
%
4
8
0
5
1
B
5
0
-
H
A
7
S
0
5
1
B
5
0
-
H
A
7
V
V
2
.
1
V
5
A
5
W
6
%
2
8
0
2
1
B
5
0
-
H
A
7
S
0
2
1
B
5
0
-
H
A
7
V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP02x7AH-05B
5V Input / 1.2V 3.3V Output / 5A
page 2
Input Specifications
Absolute Maximum Ratings
Note: Use beyond the maximum ratings may cause a reliability degradation of the DC/DC
converter or may permanently damage the device.
Note: Input capacitance one 270F/16V, ESR = 0.018
max at 100kHz @ 25 C.
1. With simulated source impedance of 500nH, 5Hz to 20MHz.
r
e
t
e
m
a
r
a
P
l
o
b
m
y
S
n
i
M
l
a
c
i
p
y
T
x
a
M
t
i
n
U
e
g
a
t
l
o
V
t
u
p
n
I
s
u
o
u
n
i
t
n
o
C
n
i
V
3
.
0
-
6
V
e
g
a
t
l
o
V
l
a
n
i
m
r
e
T
e
l
b
a
n
E
t
u
p
t
u
O
n
e
t
u
o
V
3
.
0
-
6
V
e
r
u
t
a
r
e
p
m
e
T
t
n
e
i
b
m
A
b
m
a
T
0
0
7
C
e
r
u
t
a
r
e
p
m
e
T
e
g
a
r
o
t
S
r
o
t
s
T
0
4
-
0
0
1
C
r
e
t
e
m
a
r
a
P
e
l
u
d
o
M
l
o
b
m
y
S
n
i
M
l
a
c
i
p
y
T
x
a
M
s
t
i
n
U
e
g
a
t
l
o
V
t
u
p
n
I
g
n
i
t
a
r
e
p
O
ll
A
n
i
V
5
.
4
5
.
5
V
t
n
e
r
r
u
C
t
u
p
n
I
V
3
.
3
V
5
.
2
V
8
.
1
V
5
.
1
V
2
.
1
n
i
I
6
.
4
6
.
3
7
.
2
3
.
2
9
.
1
A
t
n
e
r
r
u
C
t
u
p
n
I
d
a
o
L
o
N
ll
A
0
3
A
m
t
n
e
r
r
u
C
t
u
p
n
I
f
f
O
e
t
o
m
e
R
4
8
A
m
t
n
e
r
r
u
C
e
l
p
p
i
R
d
e
t
c
e
l
f
e
R
t
u
p
n
I
1
ll
A
0
3
0
6
A
m
s
m
r
)
P
-
P
(
t
n
e
r
r
u
C
e
l
p
p
i
R
d
e
t
c
e
l
f
e
R
t
u
p
n
I
1
ll
A
0
0
1
0
5
1
k
p
A
m
I
2
t
n
e
i
s
n
a
r
T
t
n
e
r
r
u
C
h
s
u
r
n
I
t
ll
A
2
0
.
0
5
0
.
0
A
2
s
d
l
o
h
s
e
r
h
T
e
g
a
t
l
o
V
n
O
n
r
u
T
ll
A
9
1
.
4
3
.
4
5
.
4
V
d
l
o
h
s
e
r
h
T
e
g
a
t
l
o
V
f
f
O
n
r
u
T
ll
A
9
.
3
9
4
.
4
V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP02x7AH-05B
5V Input / 1.2V 3.3V Output / 5A
page 3
Output Specifications
Note: All specifications are typical at nominal input, full load at 25 C unless otherwise stated.
1. Vin = 5V, Iout = full load, Ta = 25 C.
2. 0 - 20MHz, 1F ceramic cap and 10F aluminum cap on output.
r
e
t
e
m
a
r
a
P
e
l
u
d
o
M
l
o
b
m
y
S
n
i
M
l
a
c
i
p
y
T
x
a
M
s
t
i
n
U
t
n
i
o
P
t
e
S
e
g
a
t
l
o
V
t
u
p
t
u
O
1
V
3
.
3
V
5
.
2
V
8
.
1
V
5
.
1
V
2
.
1
t
u
o
V
4
3
2
.
3
5
4
.
2
4
6
7
.
1
7
4
.
1
6
7
1
.
1
3
.
3
5
.
2
8
.
1
5
.
1
2
.
1
6
6
3
.
3
5
5
.
2
6
3
8
.
1
3
5
.
1
4
2
2
.
1
V
n
o
i
t
a
l
u
g
e
R
d
a
o
L
V
3
.
3
V
5
.
2
V
8
.
1
V
5
.
1
V
2
.
1
0
.
6
0
.
6
0
.
6
0
.
6
0
.
6
5
1
5
1
5
1
5
1
5
1
V
m
n
o
i
t
a
l
u
g
e
R
e
n
i
L
V
3
.
3
V
5
.
2
V
8
.
1
V
5
.
1
V
2
.
1
0
.
3
0
.
3
0
.
3
0
.
3
0
.
3
0
1
0
1
8
8
8
V
m
e
r
u
t
a
r
e
p
m
e
T
r
e
v
O
n
o
i
t
a
l
u
g
e
R
V
3
.
3
V
5
.
2
V
8
.
1
V
5
.
1
V
2
.
1
0
2
0
2
0
1
0
1
8
3
3
5
2
8
1
5
1
2
1
V
m
n
o
i
t
a
l
u
g
e
R
e
g
a
t
l
o
V
t
u
p
t
u
O
l
a
t
o
T
V
3
.
3
V
5
.
2
V
8
.
1
V
5
.
1
V
2
.
1
8
5
0
5
1
4
8
3
5
3
V
m
e
s
i
o
N
d
n
a
e
l
p
p
i
R
t
u
p
t
u
O
2
ll
A
0
5
0
0
1
p
-
p
V
m
e
s
i
o
N
d
n
a
e
l
p
p
i
R
t
u
p
t
u
O
2
ll
A
5
1
5
2
s
m
r
V
m
e
g
n
a
R
t
n
e
r
r
u
C
t
u
p
t
u
O
ll
A
t
u
o
I
0
5
A
t
i
m
i
L
t
n
e
r
r
u
C
C
D
t
u
p
t
u
O
ll
A
m
il
t
u
o
I
5
.
6
5
.
2
1
A
e
g
r
u
S
t
i
u
c
r
i
C
t
r
o
h
S
V
3
.
3
V
5
.
2
V
8
.
1
V
5
.
1
V
2
.
1
e
g
r
u
s
t
u
o
I
8
0
.
0
5
0
.
0
5
0
.
0
5
0
.
0
5
0
.
0
2
.
0
1
.
0
1
.
0
1
.
0
1
.
0
A
2
s
e
m
i
T
n
o
n
r
u
T
ll
A
n
o
T
2
1
0
2
s
m
n
O
n
r
u
T
t
a
t
o
o
h
s
r
e
v
O
ll
A
0
3
%
e
c
n
a
t
i
c
a
p
a
C
t
u
p
t
u
O
ll
A
t
u
o
C
0
0
0
0
2
F
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP02x7AH-05B
5V Input / 1.2V 3.3V Output / 5A
page 4
Output Specifications
Note: All specifications are typical at nominal input, full load at 25 C unless otherwise stated.
3. di/dt = 0.5A/1S, Ta = 25 C without external load capacitance.
r
e
t
e
m
a
r
a
P
e
l
u
d
o
M
l
o
b
m
y
S
n
i
M
l
a
c
i
p
y
T
x
a
M
s
t
i
n
U
e
s
n
o
p
s
e
R
t
n
e
i
s
n
a
r
T
3
d
a
o
L
x
a
M
f
o
%
0
0
1
o
t
%
0
5
V
V
3
.
3
0
2
1
5
6
1
V
m
e
m
i
T
g
n
il
t
t
e
S
s
T
5
2
0
5
s
d
a
o
L
x
a
M
f
o
%
0
5
o
t
%
0
0
1
V
0
2
1
5
6
1
V
m
e
m
i
T
g
n
il
t
t
e
S
s
T
5
2
0
5
s
e
s
n
o
p
s
e
R
t
n
e
i
s
n
a
r
T
3
d
a
o
L
x
a
M
f
o
%
0
0
1
o
t
%
0
5
V
V
5
.
2
0
0
1
0
5
1
V
m
e
m
i
T
g
n
il
t
t
e
S
s
T
5
2
0
5
s
d
a
o
L
x
a
M
f
o
%
0
5
o
t
%
0
0
1
V
0
0
1
0
5
1
V
m
e
m
i
T
g
n
il
t
t
e
S
s
T
5
2
0
5
s
e
s
n
o
p
s
e
R
t
n
e
i
s
n
a
r
T
3
d
a
o
L
x
a
M
f
o
%
0
0
1
o
t
%
0
5
V
V
8
.
1
0
0
1
0
5
1
V
m
e
m
i
T
g
n
il
t
t
e
S
s
T
5
2
0
5
s
d
a
o
L
x
a
M
f
o
%
0
5
o
t
%
0
0
1
V
0
0
1
0
5
1
V
m
e
m
i
T
g
n
il
t
t
e
S
s
T
5
2
0
5
s
e
s
n
o
p
s
e
R
t
n
e
i
s
n
a
r
T
3
d
a
o
L
x
a
M
f
o
%
0
0
1
o
t
%
0
5
V
V
5
.
1
0
0
1
0
5
1
V
m
e
m
i
T
g
n
il
t
t
e
S
s
T
5
2
0
5
s
d
a
o
L
x
a
M
f
o
%
0
5
o
t
%
0
0
1
V
0
0
1
0
5
1
V
m
e
m
i
T
g
n
il
t
t
e
S
s
T
5
2
0
5
s
e
s
n
o
p
s
e
R
t
n
e
i
s
n
a
r
T
3
d
a
o
L
x
a
M
f
o
%
0
0
1
o
t
%
0
5
V
V
2
.
1
0
0
1
0
5
1
V
m
e
m
i
T
g
n
il
t
t
e
S
s
T
5
2
0
5
s
d
a
o
L
x
a
M
f
o
%
0
5
o
t
%
0
0
1
V
0
0
1
0
5
1
V
m
e
m
i
T
g
n
il
t
t
e
S
s
T
5
2
0
5
s
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP02x7AH-05B
5V Input / 1.2V 3.3V Output / 5A
page 5
Control Specifications
General Specifications
1. Vin=5V, full load and Ta=25 C.
2. See graphs on pages 10-12.
3. With remote on/off pin 1 open, the module is on.
r
e
t
e
m
a
r
a
P
e
l
u
d
o
M
l
o
b
m
y
S
n
i
M
l
a
c
i
p
y
T
x
a
M
s
t
i
n
U
y
c
n
e
i
c
i
f
f
E
1
V
3
.
3
V
5
.
2
V
8
.
1
V
5
.
1
V
2
.
1
9
8
7
8
3
8
1
8
9
7
2
9
0
9
6
8
4
8
2
8
%
y
c
n
e
u
q
e
r
F
g
n
i
h
c
t
i
w
S
ll
A
w
s
F
0
6
2
0
0
3
0
4
3
z
H
k
e
g
n
a
R
m
i
r
T
e
g
a
t
l
o
V
t
u
p
t
u
O
2
ll
A
0
9
0
1
1
%
t
h
g
i
e
W
ll
A
7
.
4
g
r
e
t
e
m
a
r
a
P
e
l
u
d
o
M
l
o
b
m
y
S
n
i
M
l
a
c
i
p
y
T
x
a
M
s
t
i
n
U
f
f
O
/
n
O
e
t
o
m
e
R
3
ll
A
n
e
t
u
o
V
V
)
n
O
t
i
n
U
(
w
o
L
l
a
n
g
i
S
ll
A
0
1
V
)
f
f
O
t
i
n
U
(
h
g
i
H
l
a
n
g
i
S
ll
A
8
.
2
5
.
5
V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP02x7AH-05B
5V Input / 1.2V 3.3V Output / 5A
page 6
Efficiency Data
Module 3.3V
92%
93%
94%
95%
96%
97%
1
2
3
4
5
6
Output Current
E
f
f
i
c
i
enc
y
4.5V
5.0V
5.5V
Module 2.5V
90%
91%
92%
93%
94%
95%
1
2
3
4
5
6
Output Current
E
f
f
i
c
i
enc
y
4.5V
5.0V
5.5V
Module 1.8V
86%
87%
88%
89%
90%
91%
92%
93%
1
2
3
4
5
6
Output Current
E
ffi
ci
e
n
c
y
4.5V
5.0V
5.5V
Module 1.5V
85%
86%
87%
88%
89%
90%
91%
92%
1
2
3
4
5
6
Output Current
E
f
f
i
ci
e
n
cy
4.5V
5.0V
5.5V
Module 1.2V
81%
82%
83%
84%
85%
86%
87%
88%
1
2
3
4
5
6
Output Current
Ef
fi
ci
e
n
cy
4.5V
5.0V
5.5V
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP02x7AH-05B
5V Input / 1.2V 3.3V Output / 5A
page 7
Ripple and Noise
Ripple and noise at full load and 5Vdc input,
3.3Vdc output and Ta=25 C
Ripple and noise at full load and 5Vdc input,
2.5Vdc output and Ta=25 C
Ripple and noise at full load and 5Vdc input,
1.8Vdc output and Ta=25 C
1F ceramic cap and 10F aluminum electrolytic cap added at the output.
Ripple and noise at full load and 5Vdc input,
1.5Vdc output and Ta=25 C
Ripple and noise at full load and 5Vdc input,
1.2Vdc output and Ta=25 C
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP02x7AH-05B
5V Input / 1.2V 3.3V Output / 5A
page 8
Transient Response
Transient response: di/dt = 0.5A/S, no external load capacitance
Vout=3.3V
50% to 100% load transients at 5V input and Ta=25 C
Vout=3.3V
100% to 50% load transients at 5V input and Ta=25 C
Vout=2.5V
50% to 100% load transients at 5V input and Ta=25 C
Vout=2.5V
100% to 50% load transients at 5V input and Ta=25 C
Vout=1.8V
50% to 100% load transients at 5V input and Ta=25 C
Vout=1.8V
100% to 50% load transients at 5V input and Ta=25 C
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP02x7AH-05B
5V Input / 1.2V 3.3V Output / 5A
page 9
Transient Response
Transient response: di/dt = 0.5A/S, no external load capacitance
Vout=1.2V
50% to 100% load transients at 5V input and Ta=25 C
Vout=1.5V
50% to 100% load transients at 5V input and Ta=25 C
Vout=1.5V
100% to 50% load transients at 5V input and Ta=25 C
Vout=1.2V
100% to 50% load transients at 5V input and Ta=25 C
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP02x7AH-05B
5V Input / 1.2V 3.3V Output / 5A
page 10
Thermal Considerations
V7AH-05B
S7AH-05B
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP02x7AH-05B
5V Input / 1.2V 3.3V Output / 5A
page 11
Output Voltage Set-Point Adjustment
Vo
Trim
Gnd
Vo
Trim
Gnd
Trim Down Test Circuit
Trim Up Test Circuit
Output Voltage Set-Point Adjustment
x7AH-05B330 Trim Resistor Calculation
Rtrim down =
7.914
Vo Vo, adj
8.27
)
Kohm
(
Rtrim up =
2.528
Vo, adj Vo
5.11
)
Kohm
(
2.97
3
3.04
3.07
3.1
3.13
3.17
3.2
3.23
3.27
3.3
0.01
30.01
60.01
90.01
120.01
150.01
180
210
240
270
Adjusted output voltage Vo,adj (V)
T
r
i
m
re
s
i
s
t
o
r
v
a
l
u
e
R
t
ri
m
_
d
o
w
n
(K
o
h
m
)
3.3
3.33
3.37
3.4
3.43
3.46
3.5
3.53
3.56
3.6
3.63
0.01
30.01
60.01
90.01
120.01
150.01
180
210
240
270
Adjusted output voltage Vo,adj(V)
T
r
i
m
r
e
s
i
s
t
or
va
l
u
e
,
R
t
r
i
m
_
u
p
(
K
o
h
m
)
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP02x7AH-05B
5V Input / 1.2V 3.3V Output / 5A
page 12
x7AH-05B250 Trim Resistor Calculation
Rtrim down =
3.664
Vo Vo, adj
6.79
)
Kohm
(
Rtrim up =
1.72
Vo, adj Vo
4.64
)
Kohm
(
x7AH-05B180 Trim Resistor Calculation
Rtrim down =
1.509
Vo Vo, adj
5.52
)
Kohm
(
Rtrim up =
1.2
Vo, adj Vo
4.02
)
Kohm
(
Output Voltage Set-Point Adjustment
2.25
2.27
2.3
2.33
2.35
2.38
2.4
2.42
2.45
2.48
2.5
0.01
30.01
60.01
90.01
120.01
150.01
180
210
240
270
Adjusted output voltage Vo,adj (V)
T
r
i
m
r
e
si
sto
r
v
a
l
u
e
Rt
r
i
m
_
d
o
w
n
(
K
o
h
m
)
2.5
2.52
2.55
2.58
2.6
2.63
2.65
2.67
2.7
2.73
2.75
0.01
30.01
60.01
90.01
120.01
150.01
180
210
240
270
Adjusted output voltage Vo,adj(V)
Tr
i
m
r
e
s
i
s
t
or
v
a
l
u
e
,
R
t
r
i
m
_
up(
K
o
h
m
)
1.62 1.64 1.66 1.67 1.69
1.71 1.73 1.75 1.76 1.78
1.8
1
30.9
60.8
90.7
120.6
150.5
180.4
210.3
240.2
270.1
300
Adjusted output voltage Vo,adj (V)
T
r
i
m
r
e
s
i
s
t
or
v
a
l
u
e
R
t
r
i
m
_
dow
n
(
K
o
hm
)
1.8
1.82
1.83
1.85
1.86
1.88
1.9
1.91
1.93
1.94 1.96
1
30.9
60.8
90.7
120.6
150.5
180.4
210.3
240.2
270.1
300
Adjusted output voltage Vo,adj(V)
T
r
i
m
r
e
s
i
s
t
or
v
a
l
u
e
,
R
t
r
i
m
_
up(
K
ohm
)
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP02x7AH-05B
5V Input / 1.2V 3.3V Output / 5A
page 13
x7AH-05B150 Trim Resistor Calculation
Rtrim down =
2.702
Vo Vo, adj
11.7
)
Kohm
(
Rtrim up =
3.064
Vo, adj Vo
7.87
)
Kohm
(
x7AH-05B120 Trim Resistor Calculation
Rtrim down =
1.545
Vo Vo, adj
8.47
)
Kohm
(
Rtrim up =
3.064
Vo, adj Vo
4.64
)
Kohm
(
Output Voltage Set-Point Adjustment
1.35
1.37
1.38
1.4
1.41
1.43
1.44
1.46
1.47
1.49
1.5
0.01
30.01
60.01
90.01
120.01
150.01
180
210
240
270
A djusted output voltage Vo,adj (V)
T
r
i
m
r
e
s
i
s
t
o
r
va
l
u
e
R
t
r
i
m
_
do
w
n
(
K
oh
m
)
1.5
1.51
1.53
1.54
1.56
1.58
1.59
1.61
1.62
1.64
1.65
0.01
30.01
60.01
90.01
120.01
150.01
180
210
240
270
A djus ted output voltage V o,adj(V)
T
r
i
m
r
e
s
i
s
t
or
va
l
u
e
,
R
t
r
i
m
_
u
p
(
K
oh
m
)
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)
T
r
i
m
r
e
si
st
or
va
l
u
e
R
t
r
i
m
_dow
n(
K
ohm
)
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)
T
r
i
m
r
e
si
st
or
va
l
u
e
,
R
t
r
i
m
_
up
(
K
o
h
m
)
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP02x7AH-05B
5V Input / 1.2V 3.3V Output / 5A
Mechanical
page 14
S7AH-05B
0.400
[10.16]
0.60
[15.24]
0.70
[17.78]
0.050
[1.27]
0.100
[2.54]
4x
0.400
[10.16]
0.012
[0.30]
0.050
[1.27]
0.020
[0.51]
0.320
[8.13]
0.780
[19.81]
0.055 [1.40] 2x
0.090 [2.29] 2x
0.004 [0.10]
0-5
R0.015
[R0.38] typ
R0.008
[R0.20] typ
0.100 [2.54]
0.855
[21.72]
0.065 [1.65]
0.110
[2.79]
Suggested PCB Pad Layout
Dimensions are in inches [millimeters].
Standard dimension tolerance is 0.005 [0.13] unless otherwise noted.
n
i
P
n
o
i
t
c
n
u
F
1
f
f
O
/
n
O
e
t
o
m
e
R
2
n
i
V
+
3
d
n
u
o
r
G
4
o
V
+
5
m
i
r
T
6
n
o
i
t
c
e
n
n
o
C
o
N
7
n
o
i
t
c
e
n
n
o
C
o
N
1 2 3 4 5
6
7
CORPORATE
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302
Tel
201-432-0463
Fax
201-432-9542
www.belfuse.com
FAR EAST
Bel Fuse Ltd.
8F / 8 Luk Hop Street
San Po Kong
Kowloon, Hong Kong
Tel
852-2328-5515
Fax 852-2352-3706
www.belfuse.com
EUROPE
Bel Fuse Europe Ltd.
Preston Technology Management Centre
Marsh Lane, Suite G7, Preston
Lancashire, PR1 8UD, U.K.
Tel
44-1772-556601
Fax 44-1772-888366
www.belfuse.com
2003 Bel Fuse Inc. Specifications subject to change without notice. 10.03
POWER PRODUCTS
NON-ISOLATED DC/DC CONVERTERS
BP02x7AH-05B
5V Input / 1.2V 3.3V Output / 5A
Mechanical
page 15
V7AH-05B
0.700
[17.78]
0.600
[15.24]
0.050
[1.27]
0.265
[6.73]
min
0.020
[0.51]
0.308
[7.82]
0.050 [1.27]
0.100 [2.54]
0.400 [10.16]
Dimensions are in inches [millimeters].
Standard dimension tolerance is 0.005 [0.13] unless otherwise noted.
2
4
3
5
1
n
i
P
n
o
i
t
c
n
u
F
1
f
f
O
/
n
O
e
t
o
m
e
R
2
n
i
V
+
3
d
n
u
o
r
G
4
o
V
+
5
m
i
r
T
PDF 
ZIP