SRAH-05BT500 Bel Fuse Inc, SRAH-05BT500 Datasheet

SRAH-05BT500

Manufacturer Part Number

SRAH-05BT500

Description

CONV DC/DC 5A 5V VREF/2 SMD

Manufacturer

Bel Fuse Inc

Series

xRAH-05BT50r

Type

Point of Load (POL) Non-Isolated with Remote On/Off and UVLOr

Datasheet

1.SRAH-05BT500.pdf (5 pages)

Specifications of SRAH-05BT500

Output

1.25V

Number Of Outputs

Power (watts)

Mounting Type

Surface Mount

Voltage - Input

Package / Case

7-DIP SMD Module

1st Output

1.25 VDC @ 5A

Size / Dimension

0.78" L x 0.70" W x 0.32" H (19.8mm x 17.8mm x 8.1mm)

Power (watts) - Rated

6.25W

Operating Temperature

-40°C ~ 85°C

Efficiency

82%

Approvals

cUL, UL

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

3rd Output

2nd Output

Other names

SRAH-05BT50

Current page: 1 of 5
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Description

The Bel xRAH-05BT50 is part of the low cost non-isolated dc/dc converter series. The converter is designed

specifically to provide bus termination voltage in application such as DDR (double data rate) memory where the

bus termination voltage must closely track the I/O bus voltage. The converter accepts a reference input and

programs its output voltage to 50% of the reference. The modules use a SMD or vertical mount package for ease

of layout and space savings.

Part Selection

Absolute Maximum Ratings

Input Specifications

Notes: 1. Add “0” suffix at the end of the model number to indicate “Tube Packaging”, and “R” for “Reel

Notes: 1. All tests are measured at Vref = 2.5 V.

Input Voltage (continuous)

Output Enable Terminal Voltage

Ambient Temperature

Storage Temperature

Input Voltage

Input Current (Source)

Input Current (Sink)

Input Current (No load)

Remote Off Input Current

Input Reflected Ripple Current

(pk-pk)

Vref Voltage

Turn-on Voltage Threshold

Turn Off Voltage threshold

(rms)

• Non-Isolated

• Fixed frequency (300 kHz)

• Under-voltage lockout (UVLO)

• Current Sink Capability

t Inrush Current Transient

NON-ISOLATED DC/DC CONVERTER

5 Vdc Input Vref/2 / 5 A Output

xRAH-05BT50

Voltage

Output

Vref/2

2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.

2. All specifications are typical at 25

Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

Packaging”, and “G” for “Tray Packaging”.

Parameter

Voltage

Input

5 V

RoHS Compliant

Max. Output

Current

5 A

4.19 V

4.5 V

-40 °C

-55 °C

-0.3 V

Min

-0.3 V

0 V

Min

•

Remote On/Off

OCP/SCP

Low Profile Package (7.82 mm)

UL60950-1 Recognized (UL/cUL)

C unless otherwise stated.

Max. Output

0.02 A

110 mA

30 mA

5.0 V

9 mA

2.5 V

4.3 V

3.8 V

Typ

6.25 W

Power

Typ

Rev.A

0.05 A

140 mA

60 mA

15 mA

50 mA

4.49 V

-1.5 A

5.5 V

4.5 V

Efficiency

Max

2 A

4 V

Typical

125 °C

82%

85 °C

Max

6 V

Measured with simulated source

impedance of 500 nH, 5 Hz to 20 MHz;

& one 270 uF/16 V capacitor with ESR =

0.018 ohm max. at 100 kHz

Surface Mount

SRAH-05BT50

Part Number

Notes

Vertical Mount

VRAH-05BT50

Part Number

Related parts for SRAH-05BT500

SRAH-05BT500 Summary of contents

Page 1

... V 4 3.8 V 4.49 V ° C unless otherwise stated. Typical Part Number Efficiency Surface Mount 82% SRAH-05BT50 Max Notes °C 125 °C Max Notes 2 A Measured with simulated source impedance of 500 nH MHz; & one 270 uF/16 V capacitor with ESR = 0.018 ohm max. at 100 kHz ...

Page 2

... Remote On/Off Signal Low (Unit Off) 3.15 V(Vin=4.5V) Signal High (Unit On) 3.85 V(Vin=5.5V) Note: All tests are measured at Vref=2.5 V. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com Min Typ 0.99* (Vref/2) V Vref/2 - ...

Page 3

... Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com Efficiency Curve 87.0% 86.0% 85.0% 84.0% 83.0% 82.0% 81.0% 80.0% 79.0% 1.0 2.0 3.0 Output Current (A) Efficiency is tested at Vref=2.5 V 4.5 V 5.0 V 5.5 V 4.0 5.0 SRAH-05BT50 ...

Page 4

... Transient Response Waveforms Note: Track the transient response of the reference input. No External Load Capacitance. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 5 Vdc Input, 1.25 Vdc Output Channel 1: Transient response tracking. ...

Page 5

... NON-ISOLATED DC/DC CONVERTER 5 Vdc Input Vref Output Mechanical Outline SRAH-05BT50 VRAH-05BT50 bel RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. These parts are not however compatible with the higher temperatures associated with lead free solder processes and must be soldered using a reflow profile with a peak temperature of no more than 240 º ...

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