BEL S7AH-06E

NON-ISOLATED DC/DC CONVERTERS
4.5 – 13.2V Input / 1.0 – 3.3V Output / 6A
S7AH-06E / V7AH-06E Series
PRELIMINARY
•
Compact surface mount package
•
High efficiency means less power dissipation
•
Remote on/off
•
Extra wide input voltage range
•
Ideal for Intermediate Bus Architecture applications
Description
The S/V7AH-06E Series are non-isolated step down DC/DC converters
that operate from with an extra wide input range (4.5V to 13.2V). This allows them to operate from a nominal 5V
or 12V source or from an unregulated source such as a bus converter in an Intermediate Bus Architecture
application. These modules are available in a range of output voltages from 1.0V to 3.3V. They are offered in a
compact ovemolded package rated at 6A. Optional lead-forming provides a vertical mount product for minimal
footprint or a surface mount option for very low profile. Standard features include remote on/off, over current
protection and output voltage adjust. These products maybe used almost anywhere low-voltage silicon is being
employed and a nominal 5 – 12V source is available. Typical applications include file servers, routers, line
cards, and other computing and communications equipment.
Part Selection
Output
Voltage
3.3V
2.5V
1.8V
1.5V
1.2V
Input
Voltage
4.5 – 13.2V
4.5 – 13.2V
4.5 – 13.2V
4.5 – 13.2V
4.5 – 13.2V
Max. Output
Current
6A
6A
6A
6A
6A
Max. Output
Power
19.8W
15.0W
10.8W
9.0W
7.2W
Typical
Efficiency*
90%
88%
85%
84%
82%
Part Number
Surface Mount
S7AH-06E330
S7AH-06E250
S7AH-06E180
S7AH-06E150
S7AH-06E120
Part Number
Vertical Mount
V7AH-06E330
V7AH-06E250
V7AH-06E180
V7AH-06E150
V7AH-06E120
* Typical Efficiency at Vin= 8V (slightly higher for Vin = 5V, slightly lower for Vin = 12V)
Input Specifications
Parameter
Input Voltage Range
Input Current (no load)
Input Current (full load)
Reflected Ripple Current
Min
4.5 VDC
Typ
Max
13.2 VDC
Notes
50mA
60mA rms
150mA pk-pk
5.7A
120mA rms
250mA pk-pk
With a simulated source
impedance of 500nH, 5Hz to
20 MHz
Output Specifications
Parameter
Voltage Adjustability
Output Current
Setpoint Accuracy
Total Regulation
Ripple and Noise
Min
90%
Typ
Max
110%
0A
-2.5%
6A
+2.5%
-2.0%
+2.0%
100mV pk-pk
50mV rms
Notes
Includes line, load and
temperature.
0 to 20MHz Bandwidth
Use 1.0uF ceramic and 10uF
Aluminum 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
4.5 – 13.2V Input / 1.0 – 3.3V Output / 6A
Output Specifications (continued)
Parameter
Min
Typ
Transient Response
3.3V / 2.5V
1.8V / 1.5V / 1.2V
Max
Notes
200mV / 150uS
160mV / 150uS
General Specifications
Max dev / recovery time
di/dt = 0.5A/uS, Vin =8VDC
Ta = 25°C, 50-100% load
change with 220uF external
capacitance.
Pin Connections
Parameter
Switching Frequency
Dimensions
Specification
400kHz typical (fixed)
inches
mm
Weight
Operating Temperature
Non-Operating Temperature
Protection Features
Short circuit
Over current
Remote On/Off
Signal Low (OFF)
Signal High (ON)
0.7 x 0.65 x 0.32
17.78 x 16.51 x 8.13
6.2 g
-40°C to 85°C
-40°C to 100°C
Pin
1
2
3
4
5
Function
On/Off
Vin
Ground
Vout
Trim
Latching shutdown
130% to 250% max Io
-0.3 to 1.3V
3.5 to 6.5V
bel
bel
S7AH-06Exxx
V7AH-06Exxx
2003 Bel Fuse Inc. Specifications subject to change without notice. 060303
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
NON-ISOLATED DC/DC CONVERTERS
4.5 – 13.2V Input / 1.0 – 3.3V Output / 6A
Derating Guidelines
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.
A
−B
Vnom − Vadj
C
RTrimUp =
−D
Vadj − Vnom
RTrimDown =
Vnom
3.3V
1.8V
A
168.70
74.95
B
152.80
152.80
C
37.14
37.14
D
90.90
90.90
Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com