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-14V Input

0.8V-5.5V/8A Output

•

Non-Isolated

•

Remote On/Off

•

Fixed Frequency

•

Under-voltage Lockout (UVLO)

•

High Efficiency

•

OCP/SCP

•

High Power Density

•

Wide Trim Range

•

Low Cost

Description

The Bel x7AH-08E1A0 modules are a series of non-isolated, step down DC/DC converters that operate from

4.5V to14V source. These converters are available in a range of output voltages from 0.8V to 5.5V. It is

packaged in a compact, overmolded package rated at 8A. 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 for 5V output is typically 93% at full load.

Part Selection

Output

Voltage

Input

Voltage

Max. Output

Current

Max. Output

Power

Typical

Efficiency

Part Number

Surface Mount

Part Number

Vertical Mount

0.8V - 3.63V

4.5V – 14V

8A

26.4W

91%

S7AH-08E1A0

V7AH-08E1A0

4.5V – 5.5V

8V – 14V

8A

44W

93%

S7AH-08E500

V7AH-08E500

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

-

15V

Output Enable Terminal Voltage

-0.3V

-

14V

Ambient Temperature

-40

°C

-

85

°C

Storage Temperature

-55

°C

-

125

°C

Input Specifications

Parameter

Min

Typ

Max

Notes

Input Voltage

Vo=4.5V-5.5V

Vo=0.9V-3.63V

8.0V

4.5V

-

-

14V

14V

Input Current (full load)

Vo=5.0V

-

-

-

-

-

-

-

-

-

-

-

-

-

-

5.4A

6.7A

5.3A

3.2A

3.0A

2.8A

2.0A

Input Current (no load)

-

-

100mA

Remote Off Input Current

-

3mA

10mA

Input Reflected Ripple Current (pk-pk)

-

180mA

-

Input Reflected Ripple Current (RMS)

-

50mA

-

With simulated source impedance of 500nH, 5Hz

to 20MHz; use two 47uF/16V low ESR Tantalum

capacitors.

x7AH-08E Series

PRELIMINARY