S7AH-03A Datasheet PDF - Bel Fuse

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S7AH-03A
Bel Fuse

Part Number S7AH-03A
Description NON-ISOLATED DC/DC CONVERTERS
Page 15 Pages


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NON-ISOLATED DC/DC CONVERTERS
12V Input / 1.5V – 5.0V Output / 3A
S7AH-03A / V7AH-03A Series
• 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
POWER PRODUCTS
BP02x7AH-03A
Description
The Bel S7AH-03A and V7AH-03A modules are a series of non-isolated, step down DC/DC power converters that operate
from a nominal 12V source. These converters are available in a range of output voltages from 1.5V to 5.0V. They are pack-
aged in a compact, overmolded package rated at 3A. 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
12V source is available. Typical applications include file servers, routers, line cards and other computing and communications
equipment.
Applications
• Distributed power architectures
• Data networking equipment
• Telecommunications
• Computers and peripherals
Part Number Selection
Output
Voltage
5.0V
3.3V
2.5V
1.8V
1.5V
Input
Voltage
12V
12V
12V
12V
12V
Max. Output
Current
3A
3A
3A
3A
3A
Max. Output
Power
15W
9.9W
7.5W
5.4W
4.5W
Typical
Efficiency
91%
90%
88%
85%
84%
Part Number
Surface Mount
S7AH-03A500
S7AH-03A330
S7AH-03A250
S7AH-03A180
S7AH-03A150
Part Number
Vertical Mount
V7AH-03A500
V7AH-03A330
V7AH-03A250
V7AH-03A180
V7AH-03A150
©2003 Bel Fuse Inc. Specifications subject to change without notice. 01.03
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
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POWER PRODUCTS
BP02x7AH-03A
NON-ISOLATED DC/DC CONVERTERS
12V Input / 1.5V – 5.0V Output / 3A
Absolute Maximum Ratings
Parameter
Symbol Min Typical Max
Continuous Input Voltage
Vin -0.3
13.2
Output Enable Terminal Voltage
Vouten
-0.3
13.2
Ambient Temperature
Tamb
0
70
Storage Temperature
Tstor
-40
125
Unit
V
V
°C
°C
Note: Use beyond the maximum ratings may cause a reliability degradation of the DC/DC
converter or may permanently damage the device.
Input Specifications
Parameter
Module Symbol Min Typical
Operating Input Voltage
Input Current
No Load Input Current
All Vin 10.8
5.0V
3.3V
2.5V
1.8V
1.5V
Iin
All
Remote Off Input Current
Input Reflected Ripple Current1
All
3
30
Input Reflected Ripple Current (P-P)1
All
140
I2t Inrush Current Transient
All
0.005
Turn On Voltage Threshold
All
9.4
Turn Off Voltage Threshold
All
8.0 9.0
Note: Input capacitance 270µF/16V, ESR = 0.03 max at 100kHz @ 25° C.
1. With simulated source impedance of 500nH, 5Hz to 20MHz.
Max
13.2
1.7
1.2
0.9
0.75
0.6
100
10
0.01
10.0
Units
V
A
mA
mA
mArms
mApk
A2s
V
V
©2003 Bel Fuse Inc. Specifications subject to change without notice. 01.03
page 2
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
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NON-ISOLATED DC/DC CONVERTERS
12V Input / 1.5V – 5.0V Output / 3A
Output Specifications
Parameter
Output Voltage Set Point 1
Load Regulation
Line Regulation
Regulation Over Temperature
Total Output Voltage Regulation
Output Ripple and Noise 2
Output Ripple and Noise 2
Output Current Range
Output DC Current Limit
Short Circuit Surge
Turn on Time
Overshoot at Turn On 3
Output Capacitance
Module
5.0V
3.3V
2.5V
1.8V
1.5V
5.0V
3.3V
2.5V
1.8V
1.5V
5.0V
3.3V
2.5V
1.8V
1.5V
5.0V
3.3V
2.5V
1.8V
1.5V
5.0V
3.3V
2.5V
1.8V
1.5V
All
All
All
All
All
All
All
All
Symbol
Vout
Iout
Ioutlim
Ioutsurge
Ton
Cout
Min
4.920
3.247
2.460
1.771
1.476
0
3.6
0
Typical
5.0
3.3
2.5
1.8
1.5
10
10
5
5
5
10
5
3
3
3
20
12
8
5
5
40
27
16
13
13
40
10
0.35
12
0
Max
5.080
3.353
2.540
1.829
1.524
16.5
16.5
10
10
10
16
10
5
5
5
30
25
20
10
10
62.5
51.5
35
25
25
100
20
3
7.5
0.7
20
3
1200
POWER PRODUCTS
BP02x7AH-03A
Units
V
mV
mV
mV
mV
mVp-p
mVrms
A
A
A2s
ms
%
µF
Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated.
1. Vin = 12V, Iout = full load, Ta = 25° C.
2. 0 - 20 MHz, 0.1µF ceramic cap on output.
3. Overshoot at turn on output capacitance is 100µF.
©2003 Bel Fuse Inc. Specifications subject to change without notice. 01.03
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
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POWER PRODUCTS
BP02x7AH-03A
NON-ISOLATED DC/DC CONVERTERS
12V Input / 1.5V – 5.0V Output / 3A
Output Specifications
Parameter
Transient Response 4
Module Symbol Min Typical Max
Units
V 50% to 100% of Max Load
Settling Time
V 100% to 50% of Max Load
5.0V
Ts
100 200 mV
40 80 µs
100 200 mV
Settling Time
Transient Response 4
Ts 40 80 µs
V 50% to 100% of Max Load
80 150 mV
Settling Time
V 100% to 50% of Max Load
Settling Time
Transient Response 4
3.3V
Ts
Ts
40 80 µs
80 150 mV
40 80 µs
V 50% to 100% of Max Load
Settling Time
V 100% to 50% of Max Load
2.5V
Ts
70 100 mV
40 80 µs
70 100 mV
Settling Time
Transient Response 4
Ts 40 80 µs
V 50% to 100% of Max Load
70 100 mV
Settling Time
V 100% to 50% of Max Load
Settling Time
Transient Response 4
1.8V
Ts
Ts
40 80 µs
70 100 mV
40 80 µs
V 50% to 100% of Max Load
Settling Time
V 100% to 50% of Max Load
1.5V
Ts
70 100 mV
40 80 µs
70 100 mV
Settling Time
Ts 40 80 µs
Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated.
4. di/dt = 0.5A/1µS, Ta = 25° C without external load capacitance.
©2003 Bel Fuse Inc. Specifications subject to change without notice. 01.03
page 4
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com
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Bel Fuse
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