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SRBC-10A2A0G

P1-P3P4-P6P7-P9P10-P10
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
8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/10 A Output
• Non-Isolated • Under-voltage Lockout (UVLO)
• High Efficiency • Over Temperature Protection
• High Power Density • OCP/SCP
• Excellent Thermal Performance • Wide Input
• Low Cost • Wide Trim
• Flexible Output Voltage
Sequencing
• Remote On/Off
• Active Low/High (option)
• Remote Sense • Industrial Temperature Range
• Able to Sink/Source Current
Description
The Bel SRBC-10A2Ax modules are a series of non-isolated dc/dc converters that deliver up to 10 A of output
current with full load efficiency of 93% at 3.3 Vdc output. These modules provide precisely regulated voltage
programmable via external resistor from 0.75 Vdc to 5.0 Vdc over a wide range of input voltage (8.3 Vdc - 14
Vdc). These modules have a sequencing feature that enables designers to implement various types of output
voltage sequencing when powering multiple voltages on a board. The open-frame construction and small
footprint enable designers to develop cost and space-efficient solutions. Standard features include remote
On/Off, over current protection, short current protection, wide input, and programmable output voltage.
Part Selection
Output
Voltage
Input
Voltage
Max. Output
Current
Max. Output
Power
Typical
Efficiency
Model Number
Active Low
Model Number
Active High
0.75 V - 5.0 V
8.3 V
- 14 V
10 A 50.0 W 95% SRBC-10A2AL SRBC-10A2A0
Notes: 1. Add “G” suffix at the end of the model number to indicate Tray Packaging.
2. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
Absolute Maximum Ratings
Parameter Min Typ Max Notes
Input Voltage (continuous) -0.3 V - 15 V
Output Enable Terminal Voltage -0.3 V - 15 V
Sequencing Voltage
1
-0.3 V - Vin
Ambient Temperature
-40 °C
-
85 °C
Storage Temperature
-55 °C
-
125 °C
Notes: All specifications are typical at 25 °C unless otherwise stated.
1. SRBC-10A2Ax series of modules include a sequencing feature that enables users to implement
various types of output voltage sequencing in their applications. This is accomplished via an additional
sequencing pin. When the sequencing feature is not used, tie the SEQ pin to Vin or leave it unconnected.
SRBC-10A2Ax RoHS Com
p
liant Rev.A
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
8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/10 A Output
Input Specifications
Parameter Min Typ Max Notes
Input Voltage
Vo, set
≤ 3.63 V
Vo, set
> 3.63 V
8.3 V
8.3 V
12 V
12 V
14 V
13.2 V
Input Current (full load) - - 6.5 A
An input line fuse must always be
used.
Input Current (no load) - 50 mA -
Remote Off Input Current - 2 mA -
Input Reflected Ripple Current
(pk-pk)
- - 400 mA
Input Reflected Ripple Current
(rms)
- - 150 mA
Tested with one 1000 uF/25 V AL
input capacitor with ESR=0.03 ohm
max and 4 × 47 uF/16 V tan
capacitors with ESR=0.013 ohm max
at 100 kHz, & simulated source
impedance of 1000 nH, 5 Hz to
20 MHz.
I
2
t Inrush Current Transient - 0.04 A
2
s 0.08 A
2
s
Turn-on Voltage Threshold - 8.2 V
Turn-off Voltage Threshold - 7.9 V
Note: All specifications are typical at 25 °C unless otherwise stated.
Output Specifications
Parameter Min Typ Max Notes
Output Voltage Set Point -2% Vo,set - 2% Vo,set Vin=12 V, full load
Load Regulation - 0.1% Vo,set -
Line Regulation - 0.1% Vo,set -
Regulation Over Temperature
(-40 °C to +85 °C)
- 0.3% Vo,set - Tref=Tamin to Tamax
Output Current 0 A - 10 A
Current Limit Threshold - 200% Io -
Short Circuit Surge Transient
- 1 A
2
s 3 A
2
s
Ripple and Noise (pk-pk) - 50 mV 100 mV
Ripple and Noise (rms) - 20 mV 40 mV
Tested with 0-20 MHz, with 10 uF
tantalum capacitor & 1 uF
ceramic ca
p
acitor
Turn on Time - 6 mS 10 mS
Overshoot at Turn on - - 1% Vo,set
Output Capacitance - - 5000 uF
Transient Response
50% ~ 100% Max Load - 100 mV -
Settling Time - 50 uS -
100% ~ 50% Max Load - 100 mV -
Settling Time
V
O = 0.75 V -
5 V
- 50 uS
-
di/dt=2.5 A/uS; Vin=12 V;
and with 2 × 150 uF polymer
capacitors at the output
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
8.3 Vdc - 14 Vdc Input 0.75 Vdc - 5.0 Vdc/10 A Output
General Specifications
Parameter Min Typ Max Notes
Efficiency
Vo=5.0 V
Vo=3.3 V
Vo=2.5 V
Vo=1.8 V
Vo=1.5 V
Vo=1.2 V
Vo=0.75 V
-
-
-
-
-
-
-
95%
93%
92%
90%
89%
87.5%
81%
-
-
-
-
-
-
-
Measured at Vin=12 V, full load
Switching Frequency 265 kHz 300 kHz 335 kHz
Over Temperature Shutdown
1
-
130 °C
-
Output Voltage Trim Range 0.7525 V - 5.0 V
Remote Sense Compensation - - 0.5 V
MTBF 4,982,651 hours
Calculated Per Bell Core SR-332 (I
O = 80%
load; Vo=5 V; Vin=12 V; T
a = 25°C)
Dimensions
Inches (L × W × H)
Millimeters
(
L × W × H
)
1.3 x 0.53 x 0.315
33.02 x 13.46 x 8.00
Weight - 8 g -
Notes: All specifications are typical at 25 °C unless otherwise stated.
1. The Tref temperature measurement location:
Control Specifications
Parameter Min Typ Max Notes
Remote On/Off
Signal Low (Unit Off) -0.2 V - 0.3 V
Signal High (Unit On) - - Vin, max
SRBC-10A2A0; Remote On/Off pin open, Unit
on.
Signal Low (Unit On) -0.2 V - 0.3 V
Signal High (Unit Off) 2.5 V - Vin, max
SRBC-10A2AL; Remote On/Off pin open, Unit
on.
Voltage Sequencing
Sequencing Delay Time 10 mS - -
Delay from Vin, min to application of voltage
on SEQ pin
Sequencing Slew Rate Capability - - 2 V/mS
Tracking Accuracy
Power-Up
Power-Down
-
-
100 mV
300 mV
200 mV
500 mV
Vinmin to Vinmax; Iomin to Iomax; Vseq<Vo
P1-P3P4-P6P7-P9P10-P10

SRBC-10A2A0G

Mfr. #:
Buy SRBC-10A2A0G
Manufacturer:
Bel
Description:
Non-Isolated DC/DC Converters
Lifecycle:
New from this manufacturer.
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