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Электронный компонент: X7AH-03EXX0

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Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
4.5V-13.2V Input
0.9V-5.0V/3A Output

Non-Isolated
Low
Cost
High
Efficiency
Remote
On/Off
High Power Density
Under-voltage Lockout (UVLO) *
Excellent Thermal Performance
OCP/SCP
* Not applicable for 5.0V output module.
Description
The Bel x7AH-03Exx0 Series are part of the low cost non-isolated DC/DC power converters. The modules use a
surface mount package or vertical package for ease of layout and space savings, with a low profile of only
7.82mm. The output is closely regulated and the efficiency of 5V output module is typically 95% at full load.
Typical features include Remote On/Off, under-voltage lockout, over-current protection and short circuit
protection.
Part Selection
Output
Voltage
Input
Voltage
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Part Number
Surface Mount
Part Number
Vertical Mount
5.0V
8.0 13.2V
3A
15W
95%
S7AH-03E500
V7AH-03E500
3.3V
4.5 13.2V
3A
9.9W 93%
S7AH-03E330
V7AH-03E330
2.5V
4.5 13.2V
3A
7.5W 91%
S7AH-03E250
V7AH-03E250
1.8V
4.5 13.2V
3A
5.4W
88%
S7AH-03E180
V7AH-03E180
1.5V
4.5 13.2V
3A
4.5W 87%
S7AH-03E150
V7AH-03E150
1.2V
4.5 13.2V
3A
3.6W 85%
S7AH-03E120
V7AH-03E120
1.0V
4.5 13.2V
3A
3W 84%
S7AH-03E100
V7AH-03E100
0.9V
4.5 13.2V
3A
2.7W 82%
S7AH-03E090 V7AH-03E090
Note:
Add "0" suffix at the end of the model number to indicate "Tube Packaging", and "R" for "Reel
Packaging", and "G" for "Tray Packaging".

Absolute Maximum Ratings
Parameter
Min
Typ
Max
Notes
Input Voltage (continuous)
-0.3V
-
14V
Output Enable Terminal Voltage
-0.3V
-
13.2V
Ambient Temperature
0
C
-
70
C
Storage Temperature
-40
C
-
100
C
Input Specifications
Parameter
Min
Typ
Max
Notes
Input Voltage
4.5V
-
13.2V
Min. input voltage for 5.0V output module
should be 8.0V
Input Current (no load)
-
30mA
-
Input Current (full load)
-
-
3A
Remote Off Input Current
-
4mA
-
Input Reflected Ripple Current
(pk-pk)
- 75mA
150mA
Input Reflected Ripple Current
(RMS)
- 30mA
60mA
With simulated source impedance of
500nH, 5Hz to 20MHz; Use one
270uF/16V Oscon capacitor with ESR =
0.018 ohm max. at 100KHz at 25
C
I
2
t Inrush Current Transient
-
0.02A
2
s 0.08A
2
s
Turn-on Voltage Threshold
-
4.1V
4.5V
Turn-off Voltage Threshold
-
3.3V
4.0V
Not applicable for 5.0V output.
x7AH-03Exx0 Series
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
4.5V-13.2V Input
0.9V-5.0V/3A Output
Output Specifications
Parameter
Min
Typ
Max
Notes
Output Voltage Set Point
V
O
=5.0V
V
O
=3.3V
V
O
=2.5V
V
O
=1.8V
V
O
=1.5V
V
O
=1.2V
V
O
=1.0V
V
O
=0.9V
4.900V
3.234V
2.450V
1.764V
1.470V
1.176V
0.980V
0.882V
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
5.100V
3.366V
2.550V
1.836V
1.530V
1.224V
1.020V
0.918V
Test condition:
Vin=8V, lout=full load
Line Regulation
V
O
=5.0V
V
O
=3.3V
V
O
=2.5V
V
O
=1.8V
V
O
=1.5V
V
O
=1.2V
V
O
=1.0V
V
O
=0.9V
-
-
-
-
-
-
-
-
10mV
8mV
6mV
6mV
5mV
5mV
5mV
5mV
15mV
10mV
10mV
10mV
8mV
8mV
8mV
8mV
Load Regulation
V
O
=5.0V
V
O
=3.3V
V
O
=2.5V
V
O
=1.8V
V
O
=1.5V
V
O
=1.2V
V
O
=1.0V
V
O
=0.9V
-
-
-
-
-
-
-
-
15mV
10mV
8mV
8mV
5mV
5mV
5mV
5mV
25mV
20mV
15mV
15mV
10mV
10mV
10mV
10mV
Regulation Over Temperature (0
C to 70 C)
- 20mV
40mV
Output Current
0A - 3A
Current Limit Threshold
3.3A - 8A
Short Circuit Surge Transient
- 0.02A
2
s 0.08A
2
s
Ripple and Noise (RMS)
-
15mV
40mV
BW = 0-20MHz.
Ripple and Noise (pk-pk)
50mV
100mV
BW = 0-20MHz.
Turn on Time
-
-
60mS
Overshoot at Turn on
-
0%
3%
Output Capacitance
0uF
-
1200uF
Transient Response
Overshoot -
150mV
200mV
50% ~ 100%
Max Load
Settling Time
-
60uS
120uS
Overshoot -
150mV
200mV
100% ~ 50%
Max Load
Settling Time
V
O
=5V
- 60uS
120uS
Overshoot
-
110mV
150mV
50% ~ 100%
Max Load
Settling Time
-
60uS
120uS
Overshoot
-
110mV
150mV
100% ~ 50%
Max Load
Settling Time
V
O
=3.3V
-
60uS
120uS
Overshoot
-
110mV
150mV
50% ~ 100%
Max Load
Settling Time
-
60uS
100uS
Overshoot
-
110mV
150mV
100% ~ 50%
Max Load
Settling Time
V
O
=2.5V
-
60uS
100uS
di/dt = 0.5A/uS; Vin = 8V;
Ta = 25
C and with a
220uF Tan. capacitor on
output
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
4.5V-13.2V Input
0.9V-5.0V/3A Output
Output Specifications (continued)
Parameter
Min
Typ
Max
Notes
Transient Response
Overshoot
-
110mV
150mV
50% ~ 100%
Max Load
Settling Time
-
60uS
100uS
Overshoot
-
110mV
150mV
100% ~ 50%
Max Load
Settling Time
V
O
=1.8V
-
60uS
100uS
Overshoot -
110mV
150mV
50% ~ 100%
Max Load
Settling Time
-
60uS
120uS
Overshoot -
110mV
150mV
100% ~ 50%
Max Load
Settling Time
V
O
=1.5V
- 60uS
120uS
Overshoot
-
110mV
150mV
50% ~ 100%
Max Load
Settling Time
-
60uS
100uS
Overshoot
-
110mV
150mV
100% ~ 50%
Max Load
Settling Time
V
O
=1.2V
-
60uS
100uS
Overshoot
-
110mV
150mV
50% ~ 100%
Max Load
Settling Time
-
60uS
100uS
Overshoot
-
110mV
150mV
100% ~ 50%
Max Load
Settling Time
V
O
=1.0V
-
60uS
100uS
Overshoot
-
110mV
150mV
50% ~ 100%
Max Load
Settling Time
-
60uS
100uS
Overshoot
-
110mV
150mV
100% ~ 50%
Max Load
Settling Time
V
O
=0.9V
-
60uS
100uS
di/dt = 0.5A/uS; Vin =
8V; Ta = 25
C and with
a 220uF electrolytic
capacitor on output
Note:
All specifications are typical at 8V input, full load at 25
C
unless otherwise stated.
General Specifications
Parameter
Min
Typ
Max
Notes
Efficiency
V
O
=5.0V
V
O
=3.3V
V
O
=2.5V
V
O
=1.8V
V
O
=1.5V
V
O
=1.2V
V
O
=1.0V
V
O
=0.9V
91%
89%
87%
84%
83%
81%
80%
78%
95%
93%
91%
88%
87%
85%
84%
82%
-
-
-
-
-
-
-
-
Measured at Vin=8V, full load
Switching Frequency
200KHz
300KHz
400KHz
Output Trim Range
90% V
O
- 110%
V
O
For all outputs
1
Protection Features
MTBF
8,278,709 hours
Calculated Per Bell Core TR-332 (I
O
=
Nominal; T
a
= 25
C)
Dimensions (surface mount)
Inches (L W H)
Millimeters (L W H)
0.78 x 0.7 x 0.32
19.812 x 17.78 x 8.128
Dimensions (vertical)
Inches (L W H)
Millimeters (L W H)
0.7 x 0.308 x 0.65
17.78 x 7.82 x 16.51
Weight -
5.1g
-
Notes
: All specifications are typical at 25
C
unless otherwise stated.
1. Min. of 0.9V output should be 100%Vo.
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
4.5V-13.2V Input
0.9V-5.0V/3A Output

Control Specifications
Parameter
Min
Typ
Max
Notes
Remote On/Off
Signal Low (Unit On)
-0.3V
-
1V
Signal High (Unit Off)
2.8V
-
13.2V
Remote on/off pin open, unit on.



Output Trim Equations
Equations for calculating the trim resistor (in k) given the desired adjusted voltage (Vadj) and the nominal
output voltage of the converter (Vnom) are shown below. The Trim Down resistor should be connected between
the Trim pin and Vout. The Trim Up resistor should be connected between the Trim pin and Ground. Only one of
the resistors should be used for any given application.

B
V
V
A
R
adj
nom
TrimDown
-
-
=


D
V
V
C
R
nom
adj
TrimUp
-
-
=

Vnom
A B C D
5.0 61.940 29.400 11.760 14.700
3.3 53.840 61.700 17.200 40.200
2.5 9.596 15.620 4.496 10.000
1.8 3.850 13.830 3.064 10.000
1.5 3.120 14.420 3.536 10.000
1.2 1.790
10.910
3.536 6.490
1.0 0.511 3.490 1.992 1.000
0.9 X X 0.960
0.100




Module
Vout
Trim
GND
Rtrimdown
Module
Vout
Trim
GND
Rtrimup
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
NON-ISOLATED DC/DC CONVERTERS
4.5V-13.2V Input
0.9V-5.0V/3A Output
Efficiency Data
5V module
60.0%
65.0%
70.0%
75.0%
80.0%
85.0%
90.0%
95.0%
100.0%
0.3
0.8
1.5
2.3
3.0
Output current
Ef
fi
ci
enc
y
8V
13.2V
3.3V module
60.0%
65.0%
70.0%
75.0%
80.0%
85.0%
90.0%
95.0%
100.0%
0.3
0.8
1.5
2.3
3.0
Output current
E
f
f
i
ci
ency
4.5V
8V
13.2V
2.5V module
60.0%
65.0%
70.0%
75.0%
80.0%
85.0%
90.0%
95.0%
100.0%
0.3
0.8
1.5
2.3
3.0
Output current
E
f
f
i
ci
ency
4.5V
8V
13.2v
1.8V module
60.0%
65.0%
70.0%
75.0%
80.0%
85.0%
90.0%
95.0%
100.0%
0.3
0.8
1.5
2.3
3.0
Output current
Effi
c
i
en
cy
4.5V
8V
13.2V
1.5V module
60.0%
65.0%
70.0%
75.0%
80.0%
85.0%
90.0%
95.0%
0.3
0.8
1.5
2.3
3.0
Output current
E
f
ficie
n
cy
4.5V
8V
13.2V
1.2V module
60.0%
65.0%
70.0%
75.0%
80.0%
85.0%
90.0%
95.0%
0.3
0.8
1.5
2.3
3.0
Output current
E
f
fi
c
i
en
cy
4.5V
8V
13.2V