BEL VRBC-16F1A_07

NON-ISOLATED DC/DC CONVERTERS
2.4 Vdc - 5.5 Vdc Input
VRBC-16F1Ax
0.75 Vdc - 3.63 Vdc/16A Output
Series
RoHS Compliant
Rev.A
•
Non-Isolated
•
Under-Voltage Lockout (UVLO)
•
High Efficiency
•
Over Temperature Protection
•
High Power Density
•
Remote Sense
•
OCP/SCP
•
Wide Input
•
Fixed Frequency (300 kHz)
•
Wide Trim Range
•
Converter can Sink and Source
Current
•
Remote On/Off
•
Active Low/High (Option)
Description
The Bel VRBC-16F1Ax modules are a series of non-isolated dc/dc converters that can deliver up to 16 A of
output current with full load efficiency of 94% at 3.3 Vdc output. These modules provide precisely regulated
voltage programmable via external resistor from 0.75 Vdc to 3.63 Vdc over a wide range of input voltage (2.4
Vdc - 5.5 Vdc). Their open-frame construction and small footprint enable designers to develop cost and spaceefficient solutions. Standard features include remote ON/OFF, programmable output voltage and over current
protection.
Part Selection
Output
Voltage
Input
Voltage
Max.
Output
Current
Max.
Output
Power
Typical
Efficiency
Model
Number
Active Low
Model
Number
Active High
Model
Number
Active Low
0.75 V-3.63 V1
2.4 V-5.5 V
16 A
58.1 W
94%
VRBC-16F1AL
VRBC-16F1A0
VRBC-16F1AW2
Notes: 1. These modules use a buck topology, so the output voltages must be 0.8 V less than the input voltage.
2. Change the last character “L” to “C” to indicate 0.20’’ pin length.
3. “W” indicates special coating.
4. Add “G” to the end of the Model Number to indicate Tray Packaging.
5. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers.
Absolute Maximum Ratings
Parameter
Input Voltage (continuous)
Min
-0.3 V
Typ
-
Max
5.8 V
Output Enable Terminal Voltage
-0.3 V
-
5.8 V
Ambient Temperature
-40 °C
-
85 °C
Storage Temperature
-55 °C
-
125 °C
Notes
Note: All specifications are typical at 25 °C unless otherwise stated.
Input Specifications
Parameter
Min
Typ
Max
2.4 V
3.0 V
4.5 V
-
5.5 V
5.5 V
5.5 V
-
11.23 A
6.47 A
3.08 A
12.89 A
13.55 A
6.67 A
Notes
Input Voltage
Vo≤1.5 V
Vo=1.8 - 2.5 V
Vo=3.3 V
Input Current (full load)
Vo=3.3 V
Vo=1.8 V
Vo=0.75 V
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
2.4 Vdc - 5.5 Vdc Input
0.75 Vdc - 3.63 Vdc/16A Output
Input Specifications (continued)
Parameter
Input Current (no load)
Remote Off Input Current
Min
-
Typ
80 mA
10 mA
Max
22 mA
Input Reflected Ripple Current (pk-pk)
-
100 mA
-
Input Reflected Ripple Current (rms)
-
40 mA
-
I t Inrush Current Transient
-
0.15 A s
0.3 A s
Turn-on Voltage Threshold
-
2.2 V
-
Turn-off Voltage Threshold
-
2.0 V
-
2
2
Notes
Tested with two 100 uF / 10 V tantalum
input capacitors (P/N:
TPSC107K010R0075 AVX) & simulated
source impedance of 1 uH, 5 Hz to 20
MHz.
2
Note: All specifications are typical at 25 °C unless otherwise stated.
Output Specifications
Parameter
Output Voltage Set Point
Min
-2% Vo,set
Typ
-
Max
2% Vo,set
Output Voltage Set Point
-3% Vo,set
-
3% Vo,set
Load Regulation
-
0.4% Vo,set
-
Notes
Vin=5 V, lo=lomax full load
Over all operating input
voltages, resistive loads and
temperature conditions
Io=Io, min to Io, max
Line Regulation
Regulation Over Temperature
(-40 °C to +85 °C)
Output Current
-
0.3% Vo,set
-
Vin=Vin, min to Vin, max
-
0.5% Vo,set
-
Tref=Ta, min to Ta, max
0A
-
16 A
19 A
-
35 A
-
1.6 A s
2A s
Ripple and Noise (pk-pk)
-
25 mV
50 mV
Ripple and Noise (rms)
-
8 mV
15 mV
Turn on Time
-
4 mS
8 mS
Overshoot at Turn on
Output Capacitance
-
0% Vo,set
3% Vo,set
0 uF
0 uF
-
1000 uF
5000 uF
Current Limit Threshold
Short Circuit Surge Transient
ESR ≥ 1 mohm
ESR ≥ 10 mohm
2
2
Tested with 0-20 MHz, 10 uF /
16 V tantalum capacitor & 1 uF
/ 10 V TDK ceramic capacitor
at the output
Transient Response
50% ~ 100% Max Load
Settling Time
100% ~ 50% Max Load
VO=0.75 V 3.3 V
Settling Time
-
300 mV
-
-
50 uS
-
-
300 mV
-
-
50 uS
-
di/dt=2.5 A/uS; Vin=5 V; and
with 10 uF / 16 V tantalum
capacitor & 1 uF / 10 V ceramic
capacitor at the output
Transient Response
50% ~ 100% Max Load
Settling Time
100% ~ 50% Max Load
Settling Time
VO=0.75 V 3.3 V
-
150 mV
-
-
100 uS
-
-
150 mV
-
-
100 uS
-
di/dt=2.5 A/uS; Vin=5 V; and
with two 150 uF / 10 V
tantalum capacitors & 1 uF / 10
V ceramic capacitor at the
output
Note: All specifications are typical at nominal input (Vin = 5 V), 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
2.4 Vdc - 5.5 Vdc Input
0.75 Vdc - 3.63 Vdc/16A Output
General Specifications
Parameter
Min
Typ
Max
91%
86%
75%
94%
89%
78%
-
Switching Frequency
Over Temperature Shutdown
250 KHz
-
300 KHz
125°C
350 KHz
-
Output Trim Range (Wide Trim)
0.7525 V
-
3.63 V
-
-
5%
Notes
Efficiency
Vo=3.3 V
Vo=1.8 V
Vo=0.75 V
Remote Sense Compensation
MTBF
5,500,000 hours
Measured at Vin=5 V, full load
Total adjustment of trim, setpoint and
remote sense combined should not
exceed 3.63 V. Vo=0.7525 V when trim
pin open
Calculated Per Bell Core SR-332 (IO =
Nominal; Ta = 25 °C)
Dimensions
Inches (L × W × H)
Millimeters (L × W × H)
Weight
-
2.0 x 0.5 x 0.363
50.80 x 12.7 x 9.23
8.3 g
-
Note: All specifications are typical at 25 °C unless otherwise stated.
Control Specifications
Parameter
Remote On/Off
Signal Low (Unit Off)
Signal High (Unit On)
Signal Low (Unit On)
Signal High (Unit Off)
Min
Typ
Max
-0.3 V
1.5 V
-0.3 V
1.5 V
-
0.3 V
5.8 V
0.3 V
5.8 V
Notes
VRBC-16F1A0; Remote On/Off pin
open, Unit on.
VRBC-16F1AL & VRBC-16F1AW;
Remote On/Off pin open, Unit on.
Output Trim Equations
Equation for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) is shown below. The
Trim Up resistor should be connected between the Trim pin and Ground.
Vout
Rtrim =
21.07
− 5.11
Vadj − 0.7525
Module Trim
Rtrim
GND
Equation for calculating the trim voltage (in V) given the desired adjusted voltage (Vadj) is shown below. The
Trim Up voltage should be connected between the Trim pin and Ground.
Vtrim = 0.7 − 0.1698 × (Vadj − 0.7525)
Vout
Module
Trim
Vtrim
GND
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
2.4 Vdc - 5.5 Vdc Input
0.75 Vdc - 3.63 Vdc/16A Output
Efficiency Data
98.0%
96.0%
94.0%
92.0%
90.0%
88.0%
86.0%
4.5V
5.0V
5.5V
84.0%
82.0%
80.0%
1.6
4.0
8.0
12.0
16.0
Vo=3.3 V
100.0%
95.0%
90.0%
85.0%
80.0%
2.4V
5.0V
5.5V
75.0%
70.0%
1.6
4.0
8.0
12.0
16.0
Vo=1.8 V
95.0%
90.0%
85.0%
80.0%
75.0%
70.0%
2.4V
5.0V
5.5V
65.0%
60.0%
1.6
4.0
8.0
12.0
16.0
Vo=0.75 V
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
2.4 Vdc - 5.5 Vdc Input
0.75 Vdc - 3.63 Vdc/16A Output
Thermal Derating Curves
Vo=3.3 V
Vo=1.8 V
Vo=0.7525 V
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
2.4 Vdc - 5.5 Vdc Input
0.75 Vdc - 3.63 Vdc/16A Output
Ripple and Noise Waveforms
Vin=5.0 V, Vo=0.75 V
Vin=5.0 V, Vo=1.8 V
Vin=5.0 V, Vo=3.3 V
Note: Ripple and noise is tested at 0-20 MHz BW, 10 uF/16 V tantalum capacitor and 1uF/10 V ceramic
capacitor, Ta=25 deg C.
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
2.4 Vdc - 5.5 Vdc Input
0.75 Vdc - 3.63 Vdc/16A Output
Transient Response Waveforms
50% to 100% load step at Vin=5.0 V, Vo=0.75 V
100% to 50% load step at Vin=5.0 V, Vo=0.75 V
50% to 100% load step at Vin=5.0 V, Vo=1.8 V
100% to 50% load step at Vin=5.0 V, Vo=1.8 V
50% to 100% load step at Vin=5.0 V, Vo=3.3 V
100% to 50% load step at Vin=5.0 V, Vo=3.3 V
Note: Transient response is tested at di/dt=2.5 A/uS, with two 150 uF/10 V tantalum capacitor and 1 uF/10 V
ceramic capacitor, Ta=25 deg C.
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
2.4 Vdc - 5.5 Vdc Input
0.75 Vdc - 3.63 Vdc/16A Output
Mechanical Outline
Pin Connections
Pin
Function
1
Vout
2
Vout
3
Vo,sense
4
Vout
5
Ground
6
Ground
7
Vin
8
Vin
9
N/A
10
Trim
11
Remote On/Off
RoHS Compliance
Complies with the European Directive 2002/95/EC, calling for the elimination of lead and
other hazardous substances from electronic products.
©2007 Bel Fuse Inc. Specifications subject to change without notice. 010407
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