NON-ISOLATED DC/DC CONVERTERS
4.5V-13.2V Input
0.9V-5.0V/3A Output
x7AH-03Exx0 Series
•
•
•
•
Non-Isolated
High Efficiency
High Power Density
Excellent Thermal Performance
•
•
•
•
Low Cost
Remote On/Off
Under-voltage Lockout (UVLO) *
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
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
Input
Voltage
8.0 – 13.2V
4.5 – 13.2V
4.5 – 13.2V
4.5 – 13.2V
4.5 – 13.2V
4.5 – 13.2V
4.5 – 13.2V
4.5 – 13.2V
Max. Output
Current
3A
3A
3A
3A
3A
3A
3A
3A
Max. Output
Power
15W
9.9W
7.5W
5.4W
4.5W
3.6W
3W
2.7W
Typical
Efficiency
95%
93%
91%
88%
87%
85%
84%
82%
Part Number
Surface Mount
S7AH-03E500
S7AH-03E330
S7AH-03E250
S7AH-03E180
S7AH-03E150
S7AH-03E120
S7AH-03E100
S7AH-03E090
Part Number
Vertical Mount
V7AH-03E500
V7AH-03E330
V7AH-03E250
V7AH-03E180
V7AH-03E150
V7AH-03E120
V7AH-03E100
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
Input Voltage (continuous)
Output Enable Terminal Voltage
Ambient Temperature
Storage Temperature
Min
-0.3V
-0.3V
0°C
-40°C
Typ
-
-
-
-
Max
14V
13.2V
70°C
100°C
Notes
Input Specifications
Parameter
Input Voltage
Input Current (no load)
Input Current (full load)
Remote Off Input Current
Input Reflected Ripple Current
(pk-pk)
Input Reflected Ripple Current
(RMS)
I
2
t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
Min
4.5V
-
-
-
-
-
-
-
-
Typ
-
30mA
-
4mA
75mA
30mA
0.02A
2
s
4.1V
3.3V
Max
13.2V
-
3A
-
150mA
60mA
0.08A
2
s
4.5V
4.0V
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
Not applicable for 5.0V output.
Notes
Min. input voltage for 5.0V output module
should be 8.0V
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
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
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
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
Regulation Over Temperature (0°C to 70
°C)
Output Current
Current Limit Threshold
Short Circuit Surge Transient
Ripple and Noise (RMS)
Ripple and Noise (pk-pk)
Turn on Time
Overshoot at Turn on
Output Capacitance
Transient Response
50% ~ 100%
Max Load
100% ~ 50%
Max Load
50% ~ 100%
Max Load
100% ~ 50%
Max Load
50% ~ 100%
Max Load
100% ~ 50%
Max Load
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
-
-
-
-
-
-
-
-
-
-
-
-
150mV
60uS
150mV
60uS
110mV
60uS
110mV
60uS
110mV
60uS
110mV
60uS
200mV
120uS
200mV
120uS
150mV
120uS
150mV
120uS
150mV
100uS
150mV
100uS
-
-
0uF
-
-
-
-
-
-
-
-
-
0A
3.3A
-
-
15mV
10mV
8mV
8mV
5mV
5mV
5mV
5mV
20mV
-
-
0.02A s
15mV
50mV
-
0%
-
2
Min
4.900V
3.234V
2.450V
1.764V
1.470V
1.176V
0.980V
0.882V
-
-
-
-
-
-
-
-
Typ
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
10mV
8mV
6mV
6mV
5mV
5mV
5mV
5mV
Max
5.100V
3.366V
2.550V
1.836V
1.530V
1.224V
1.020V
0.918V
15mV
10mV
10mV
10mV
8mV
8mV
8mV
8mV
25mV
20mV
15mV
15mV
10mV
10mV
10mV
10mV
40mV
3A
8A
0.08A
2
s
40mV
100mV
60mS
3%
1200uF
Notes
Test condition:
Vin=8V, lout=full load
BW = 0-20MHz.
BW = 0-20MHz.
V
O
=5V
V
O
=3.3V
di/dt = 0.5A/uS; Vin = 8V;
Ta = 25°C and with a
220uF Tan. capacitor on
output
V
O
=2.5V
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
Transient Response
50% ~ 100%
Max Load
100% ~ 50%
Max Load
50% ~ 100%
Max Load
100% ~ 50%
Max Load
50% ~ 100%
Max Load
100% ~ 50%
Max Load
50% ~ 100%
Max Load
100% ~ 50%
Max Load
50% ~ 100%
Max Load
100% ~ 50%
Max Load
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
Overshoot
Settling Time
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
110mV
60uS
110mV
60uS
110mV
60uS
110mV
60uS
110mV
60uS
110mV
60uS
110mV
60uS
110mV
60uS
110mV
60uS
110mV
60uS
150mV
100uS
150mV
100uS
150mV
120uS
150mV
120uS
150mV
100uS
150mV
100uS
150mV
100uS
150mV
100uS
150mV
100uS
150mV
100uS
Min
Typ
Max
Notes
V
O
=1.8V
V
O
=1.5V
V
O
=1.2V
di/dt = 0.5A/uS; Vin =
8V; Ta = 25°C and with
a 220uF electrolytic
capacitor on output
V
O
=1.0V
V
O
=0.9V
Note:
All specifications are typical at 8V input, full load at 25
°C
unless otherwise stated.
General Specifications
Parameter
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
Switching Frequency
Output Trim Range
Protection Features
MTBF
Dimensions (surface mount)
Inches (L
×
W
×
H)
Millimeters (L
×
W
×
H)
Dimensions (vertical)
Inches (L
×
W
×
H)
Millimeters (L
×
W
×
H)
Weight
8,278,709 hours
0.78 x 0.7 x 0.32
19.812 x 17.78 x 8.128
0.7 x 0.308 x 0.65
17.78 x 7.82 x 16.51
5.1g
Calculated Per Bell Core TR-332 (I
O
=
Nominal; T
a
= 25°C)
91%
89%
87%
84%
83%
81%
80%
78%
200KHz
90% V
O
95%
93%
91%
88%
87%
85%
84%
82%
300KHz
-
-
-
-
-
-
-
-
-
400KHz
110% V
O
Min
Typ
Max
Notes
Measured at Vin=8V, full load
For all outputs
1
-
-
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
Remote On/Off
Signal Low (Unit On)
Signal High (Unit Off)
-0.3V
2.8V
-
-
1V
13.2V
Remote on/off pin open, unit on.
Min
Typ
Max
Notes
Output Trim Equations
Equations for calculating the trim resistor (in kΩ) 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.
Vout
R
TrimDown
A
=
−
B
V
nom
−
V
adj
Module
Trim
GND
Rtrimdown
Vout
R
TrimUp
=
V
adj
C
−
D
−
V
nom
A
61.940
53.840
9.596
3.850
3.120
1.790
0.511
X
B
29.400
61.700
15.620
13.830
14.420
10.910
3.490
X
Module
Trim
GND
Rtrimup
Vnom
5.0
3.3
2.5
1.8
1.5
1.2
1.0
0.9
C
11.760
17.200
4.496
3.064
3.536
3.536
1.992
0.960
D
14.700
40.200
10.000
10.000
10.000
6.490
1.000
0.100
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
100.0%
95.0%
3.3V module
100.0%
95.0%
90.0%
Efficiency
8V
13.2V
Efficiency
90.0%
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
0.3
0.8
1.5
2.3
3.0
Output current
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
0.3
0.8
1.5
2.3
3.0
Output current
4.5V
8V
13.2V
2.5V module
100.0%
95.0%
90.0%
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
0.3
0.8
1.5
2.3
3.0
Output current
1.8V module
100.0%
95.0%
Efficiency
4.5V
8V
13.2v
Efficiency
90.0%
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
0.3
0.8
1.5
2.3
3.0
Output current
4.5V
8V
13.2V
1.5V module
95.0%
90.0%
1.2V module
95.0%
90.0%
Efficiency
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
4.5V
8V
13.2V
4.5V
8V
13.2V
Efficiency
85.0%
80.0%
75.0%
70.0%
65.0%
60.0%
0.3
0.8
1.5
2.3
3.0
Output current
0.3
0.8
1.5
2.3
3.0
Output current
Bel Fuse Inc.
206 Van Vorst Street, Jersey City, NJ 07302
•
Tel 201-432-0463
•
Fax 201-432-9542
•
www.belfuse.com
