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Электронный компонент: X7AH-12FXX0

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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
3.0V-5.5V Input
1.0V-3.3V/12A Output

Non-Isolated
OCP/SCP
Fixed
frequency
(300kHz)
Trim
function
(Option)
Low profile package (7.82mm)
Remote
On/Off
Under-voltage
lockout
(UVLO)
Remote Sense (SMD module)
Description
The Bel x7AH-12Fxx0 series are part of the low cost non-isolated DC/DC converter series. These converters are
available in a range of output voltages from 1.0V to 3.3V. It is packaged in a compact, overmolded package
rated at 12A. The output is closely regulated and the efficiency of 3.3V output module is typically 93% at full load.
Typical features include remote on/off, input 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
3.3V
4.5V 5.5V
12A
39.6W
93%
S7AH-12F330
V7AH-12F330
2.5V
3.6V 5.5V
12A
30.0W 89%
S7AH-12F250 V7AH-12F250
1.8V
3.0V 5.5V
12A
21.6W 87%
S7AH-12F180 V7AH-12F180
1.5V
3.0V 5.5V
12A
18.0W 84%
S7AH-12F150 V7AH-12F150
1.2V
3.0V 5.5V
12A
14.4W 82%
S7AH-12F120 V7AH-12F120
1.0V
3.0V 5.5V
12A
12.0W 80%
S7AH-12F100 V7AH-12F100
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
-
6V
Output Enable Terminal Voltage
-0.3V
-
7V
Ambient Temperature
-40
C
-
85
C
Storage Temperature
-55
C
-
125
C
Input Specifications
Parameter
Min
Typ
Max
Notes
Input Voltage
V
O
=3.3V
V
O
=2.5V
V
O
=1.8-1.0V
4.5V
3.6V
3.0V
-
-
-
5.5V
5.5V
5.5V
Input Current (no load)
-
120mA
200mA
Input Current (full load)
V
O
=3.3V
V
O
=2.5V
V
O
=1.8V
V
O
=1.5V
V
O
=1.2V
V
O
=1.0V
-
-
-
-
-
-
-
-
-
-
-
-
11A
10.5A
9.0A
8.1A
6.5A
5.2A
Remote Off Input Current
-
2mA
5mA
x7AH-12Fxx0 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
3.0V-5.5V Input
1.0V-3.3V/12A Output
Input Specifications (continued)
Parameter
Min
Typ
Max
Notes
Input Reflected Ripple Current (pk-pk)
-
260mA
320mA
Input Reflected Ripple Current (RMS)
-
75mA
120mA
With simulated source impedance of
500nH, 5Hz to 20MHz; use a
270uF/6.3V cap with ESR=0.03 ohm
max at 100KHz
I
2
t Inrush Current Transient
-
0.09A
2
s
0.2A
2
s
Turn on Voltage Threshold
2.1V
-
Turn off Voltage Threshold
-
2V
2.4V
Note: All specifications are typical at 25
C
unless otherwise stated.
Output Specifications
Parameter
Min
Typ
Max
Notes
Output Voltage Set Point
V
O
=3.3V
V
O
=2.5V
V
O
=1.8V
V
O
=1.5V
V
O
=1.2V
V
O
=1.0V
3.234V
2.450V
1.764V
1.470V
1.176V
0.980V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
3.366V
2.550V
1.836V
1.530V
1.224V
1.020V
Test conditions:
Vin=5V, Io= 50% load
Line Regulation
-
1mV
4mV
Load Regulation
-
2mV
5mV
Regulation Over Temperature (-40
C to +85C)
V
O
=3.3V
V
O
=2.5V
V
O
=1.8V
V
O
=1.5V
V
O
=1.2V
V
O
=1.0V
-
-
-
-
-
-
10mV
9mV
7mV
6mV
5mV
4mV
15mV
13mV
12mV
11mV
10mV
9mV
Output Current
0A - 12A
Current Limit Threshold
20A - 30A
Short Circuit Surge Transient
-
0.3A
2
s 0.6A
2
s
Ripple and Noise (RMS)
-
12mV
21mV
Ripple and Noise (pk-pk)
-
50mV
90mV
Test conditions:
0-20MHz BW; 1uF ceramic
capacitor and 330uF external
capacitor at the output.
Turn on Time
-
5mS
10mS
Overshoot at Turn on
-
0%
3%
Output Capacitance
330uF
-
4800uF
Transient Response
Overshoot
-
110mV
150mV
50% ~ 100%
Max Load
Settling Time
-
40uS 80uS
Overshoot
-
110mV
150mV
100% ~ 50%
Max Load
Settling Time
V
O
=3.3V
-
40uS 80uS
Overshoot
-
100mV
150mV
50% ~ 100%
Max Load
Settling Time
-
30uS 60uS
Overshoot
-
100mV
150mV
100% ~ 50%
Max Load
Settling Time
V
O
=2.5V
-
30uS 60uS
Overshoot -
90mV
130mV
50% ~ 100%
Max Load
Settling Time
-
20uS
40uS
Overshoot -
90mV
130mV
100% ~ 50%
Max Load
Settling Time
V
O
=1.0V -
1.8V
- 20uS
40uS
Test conditions:
di/dt=0.5A/us, Vin=5V, with
330uF external load
capacitance.
Note:
1.
All specifications are typical at 5V input, full load at 25
C
unless otherwise stated.
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
3.0V-5.5V Input
1.0V-3.3V/12A Output
General Specifications
Parameter
Min
Typ
Max
Notes
Efficiency
V
O
=3.3V
V
O
=2.5V
V
O
=1.8V
V
O
=1.5V
V
O
=1.2V
V
O
=1.0V
90%
86%
84%
81%
79%
77%
93%
89%
87%
84%
82%
80%
-
-
-
-
-
-
Vin=5V, full load
Efficiency
V
O
=1.8V
V
O
=1.5V
V
O
=1.2V
V
O
=1.0V
85%
81%
79%
76%
88%
84%
82%
79%
-
-
-
-
Vin=3.3V, full load
Switching Frequency
250KHz
300KHz
350KHz
Output Trim Range
90%V
O
- 110%V
O
Remote Sense Compensation
-
-
10%
SMD module
MTBF
4,038,174 hours
Calculated Per Bell Core TR-332 (I
O
= 9.6A, Vin=5V; T
a
= 25
C)
Dimensions (surface mount)
Inches (L W H)
Millimeters (L W H)
0.78 x 0.70 x 0.32
19.81 x 17.78 x 8.128
Dimensions (vertical)
Inches (L W H)
Millimeters (L W H)
0.70 x 0.308 x 0.65
17.78 x 7.82 x 16.51
Weight -
5.1g
-


Control Specifications
Parameter
Min
Typ
Max
Notes
Remote On/Off
- -
0.9V
(Vin=3.0V)
- -
1.35V
(Vin=4.5V)
Signal Low (Unit Off)
- -
1.65V
(Vin=5.5V)
2.1V (Vin=3.0V)
-
-
3.15V (Vin=4.5V)
-
-
Signal High (Unit On)
3.85V (Vin=5.5V)
-
-
Remote on/off pin open, unit on.








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
3.0V-5.5V Input
1.0V-3.3V/12A Output

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
3.3 161.391 161.900 43.330 100.000
2.5 111.674 208.900 43.330 147.000
1.8 68.576 287.900 43.330 226.000
1.5 50.000 287.900 43.330 226.000
1.2 31.240 208.900 43.330 147.000
1.0 18.850 161.900 43.330 100.000










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
3.0V-5.5V Input
1.0V-3.3V/12A Output


Efficiency Data
70.00%
75.00%
80.00%
85.00%
90.00%
95.00%
100.00%
1
2
3
4
5
6
7
8
9
10
11
12
4.5V
5.0V
5.5V
70.00%
75.00%
80.00%
85.00%
90.00%
95.00%
1
2
3
4
5
6
7
8
9
10
11
12
3.6V
4.5V
5.5V
x7AH-12F330 x7AH-12F250
60.00%
65.00%
70.00%
75.00%
80.00%
85.00%
90.00%
95.00%
1
2
3
4
5
6
7
8
9
10
11
12
3V
3.3V
5V
5.5V
60.00%
65.00%
70.00%
75.00%
80.00%
85.00%
90.00%
95.00%
1
2
3
4
5
6
7
8
9
10
11
12
3V
3.3V
5V
5.5V
x7AH-12F180 x7AH-12F150
60.00%
65.00%
70.00%
75.00%
80.00%
85.00%
90.00%
95.00%
1
2
3
4
5
6
7
8
9
10
11
12
3V
3.3V
5V
5.5V
60.00%
65.00%
70.00%
75.00%
80.00%
85.00%
90.00%
95.00%
1
2
3
4
5
6
7
8
9
10
11
12
3V
3.3V
5V
5.5V
x7AH-12F120 x7AH-12F100