BEL X7AH

NON-ISOLATED DC/DC CONVERTERS
3.0V-5.5V Input
-5V/1A & -12V/0.5A Output
x7AH-01FxxN Series
•
Non-Isolated
•
Low Cost
•
Fixed Frequency
•
Excellent Thermal Performance
•
High Efficiency
•
OCP/SCP
•
High Power Density
•
Industrial Temperature Range
Description
The Bel x7AH-01FxxN modules are non-isolated, step down DC/DC converters that operate from a 3V-5.5V
source. Output voltage are -5V,-12V. They are packaged in a compact, overmolded package rated at 1A, 0.5A.
Optional lead forming provides a vertical mount product for minimal footprint or a surface mount option for a very
low profile. The output is closely regulated and the efficiency is typically 88% at 1A, -5V output at full load.
Part Selection
Output
Voltage
-5V
-12V
Input
Voltage
3.0V – 5.5V
3.0V – 5.5V
Max. Output
Current
1A
0.5A
Max. Output
Power
5W
6W
Typical
Efficiency
88%
88%
Part Number
Surface Mount
S7AH-01F50N
S7AH-01FX2N
Part Number
Vertical Mount
V7AH-01F50N
V7AH-01FX2N
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)
Ambient Temperature
Storage Temperature
Min
-0.3V
-40°C
-40°C
Typ
-
Max
7V
85°C
125°C
Notes
Input Specifications
Parameter
Input Voltage
Input Current (full load)
Min
3V
Typ
-
Max
5.5V
VO=-5V
VO=-12V
-
-
2.1A
2.5A
VO=-5V
VO=-12V
-
-
150mA
200mA
Input Reflected Ripple Current (pk-pk)
-
80mA
160mA
Input Reflected Ripple Current (RMS)
-
20mA
50mA
I2t Inrush Current Transient
Turn-on Voltage Threshold
Turn-off Voltage Threshold
-
2.63V
0.01A2s
-
0.4V
1.0V
-
2.0V
2.3V
Notes
Input Current (no load)
VO=-5V
VO=-12V
For -5V output, use a 680uF/6.3V
Oscon capacitor; For -12V output,
use 1000uF electrolytic capacitor &
22uF/10V ceramic at the input.
Note: All specifications are typical 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
-5V/1A & -12V/0.5A Output
Output Specifications
Parameter
Min
Typ
Max
VO=-5V
VO=-12V
-5.1V
-12.24V
-5V
-12V
-4.9V
-11.76V
VO=-5V
VO=-12V
-20mV
-120mV
-
20mV
120mV
VO=-5V
VO=-12V
-60mV
-120mV
-
60mV
120mV
VO=-5V
VO=-12V
-80mV
-240mV
-
80mV
240mV
VO=-5V
VO=-12V
-
25mV
40mV
40mV
70mV
VO=-5V
VO=-12V
-
90mV
120mV
120mV
240mV
VO=-5V
VO=-12V
0A
0A
-
1A
0.5A
Output DC Current Limit
-
200%
-
Short Circuit Surge Transient
-
-
0.01A2s
Turn on Time
-
10mS
30mS
Overshoot at Turn on
Output Capacitance
-
0%
3%
220uF
47uF
-
470uF
150uF
-
80mV
-
-
40uS
-
-
80mV
-
Settling Time
-
40uS
-
Overshoot
-
130mV
-
-
50uS
-
Overshoot
-
130mV
-
Settling Time
-
50uS
-
Output Voltage Set Point
Notes
Test conditions:
Vin=5.0V, lout=half load; with
220uF/10V Tantalum Capacitor &
0.1uF ceramic Capacitor (Vo=-5V)
or 47uF/25V tantalum capacitor &
0.1uF ceramic Capacitor (Vo=12V).
Line Regulation
Load Regulation
Regulation Over Temperature
(-40°C to +85 °C)
Ripple and Noise (RMS)
Ripple and Noise (pk-pk)
Test conditions:
BW = 0-20MHz; with 220uF/10V
Tan Cap & 0.1uF ceramic capacitor
(Vo=-5V) or 47uF/25V tantalum
capacitor & 0.1uF ceramic
Capacitor (Vo=-12V).
Output Current Range
VO=-5V
VO=-12V
Transient Response
50% ~ 100%
Max Load
100% ~ 50%
Max Load
50% ~ 100%
Max Load
100% ~ 50%
Max Load
Overshoot
Settling Time
Overshoot
Settling Time
Vo=-5V
VO=-12V
Test Conditions:
di/dt = 0.1A/uS; Vin = 5.0V; Ta =
25°C and with 220uF/10V
Tantalum Cap & 0.1uF ceramic
Capacitor (Vo=-5V) or 47uF/25V
tantalum Cap & 0.1uF ceramic
Capacitor (Vo=-12V).
Note: All specifications are typical at nominal 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
-5V/1A & -12V/0.5A Output
General Specifications
Parameter
Min
Typ
Max
Notes
84%
84%
250KHz
88%
88%
300KHz
350KHz
Efficiency
VO=-5V
VO=-12V
Switching Frequency
MTBF
Calculated Per Bell Core TR-332 (IO =
80%lo,max; Ta = 25°C)
4,883,163 hours
Dimensions (surface mount)
Inches (L × W × H)
Millimeters (L × W × H)
Dimensions (vertical)
Inches (L × W × H)
Millimeters (L × W × H)
Weight
Vin=5V; lo=lo, max
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
4.9g
-
Note: All specifications are typical at 25°C unless otherwise stated.
Thermal Derating Curve
x7AH-01F50N
Efficiency Data
MODULE -12V
95.0%
3.3V
5V
5.5V
85.0%
75.0%
65.0%
55.0%
0.10
0.25
0.50
0.75
OUTPUT CURRENT
x7AH-01F50N
1.00
EFFICIENCY
EFFICIENCY
MODULE -5V
95.0%
90.0%
85.0%
80.0%
75.0%
70.0%
65.0%
0.050
3.3V
5V
5.5V
0.125
0.250
0.375
0.500
OUTPUT CURRENT
x7AH-01FX2N
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
-5V/1A & -12V/0.5A Output
S7AH-01FxxN
bel
Pin Connections
Pin
Function
1
N/A
2
Vin
3
Ground
4
Vout
5
N/A
6
N/A
7
N/A
V7AH-01FxxN
Pin Connections
bel
bel
Pin
Function
1
N/A
2
Vin
3
Ground
4
Vout
5
N/A
©2005 Bel Fuse Inc. Specifications subject to change without notice. 011705
CORPORATE
FAR EAST
EUROPE
Bel Fuse Inc.
206 Van Vorst Street
Jersey City, NJ 07302
Tel 201-432-0463
Fax 201-432-9542
www.belfuse.com
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
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