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NON-ISOLATED DC/DC CONVERTERS
4.5 V - 13.2 V Input 0.9 V - 5.0 V/15 A Output
VRPB-15E Series
* * * * * * * Non-Isolated High Efficiency High Power Density Low Cost
RoHS Compliant
* * * * * * * Over Temperature Protection Under-voltage Lockout (UVLO) OCP/SCP Remote Sense Industrial Temperature Range Wide Input Voltage Range Wide Output Trim Range
Excellent Thermal Performance Remote On/Off Active Low/High (option)
Description
The Bel VRPB-15Exxx series are part of the low cost non-isolated dc/dc power converter series. These modules use a SIP package for ease of layout and space savings. The output is closely regulated and the efficiency at 3.3 V output is typically 92% at full load. Typical features include remote on/off, under-voltage lockout, wide input voltage range, wide output trim range, over-current protection and short circuit protection.
Part Selection
Output Voltage 5.0 V 3.3 V 2.5 V 1.8 V 1.5 V 1.2 V 0.9 V 0.9 V - 3.63 V Input Voltage 8.0 V - 13.2 V 4.5 V - 13.2 V 4.5 V - 13.2 V 4.5 V - 13.2 V 4.5 V - 13.2 V 4.5 V - 13.2 V 4.5 V - 13.2 V 4.5 V - 13.2 V Max. Output Current 15 A 15 A 15 A 15 A 15 A 15 A 15 A 15 A Max. Output Power 75.0 W 48.5 W 37.5 W 27.0 W 22.5 W 18.0 W 13.5 W 54.5 W Typical Efficiency 92.6% 92% 90% 88% 86% 84% 80% 92% Model Number Active Low VRPB-15E50L VRPB-15E33L VRPB-15E25L VRPB-15E18L VRPB-15E15L VRPB-15E12L VRPB-15E09L VRPB-15E1AL Model Number Active High VRPB-15E50S VRPB-15E33S VRPB-15E25S VRPB-15E18S VRPB-15E15S VRPB-15E12S VRPB-15E09S VRPB-15E1AS
Note: Add "G" suffix at the end of the model number to indicate "Tray Packaging".
Absolute Maximum Ratings
Parameter Input Voltage (continuous) Output Enable Terminal Voltage Ambient Temperature Storage Temperature Min -0.3 V -0.3 V -40 C -40 C Typ Max 15 V 15 V 85 C 125 C Notes
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 V - 13.2 V Input 0.9 V - 5.0 V/15 A Output
Min 4.5 V 8.0 V Typ 0.04 A s 3.9 V 2.5 V 5.3 V 4.5 V
2
Input Specifications
Parameter Input Voltage 0.9VVo3.63 V Vo>3.63 V Input Current (full load) Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.9 V Input Current (full load) 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=0.9 V Input Current (no load) Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.9 V Input Current (no load) 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=0.9 V Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (rms) I t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold Turn-on Voltage Threshold Turn-off Voltage Threshold
2
Max 13.2 V 13.2 V 11.4 A 9.0 A 6.7 A 5.8 A 4.9 A 3.9 A 11.2 A 4.9 A 3.6 A 2.7 A 2.3 A 1.9 A 1.49 A 180 mA 180 mA 180 mA 175 mA 170 mA 165 mA 210 mA 160 mA 140 mA 120 mA 120 mA 110 mA 105 mA 600 mA 250 mA 0.08 A s 2
Notes
Vin=5 V
Vin=12 V
Vin=5 V
Vin=12 V
Tested with simulated source impedance of 500 nH and one 470 uF/25 V AL. capacitor. with ESR=0.03 ohm max and two 270 uF/16 V Oscon capacitor. with ESR=0.013 ohm max at 100 kHz
0.9VVo3.63V Vo>3.63 V
Output Specifications
Parameter Output Voltage Set Point 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=0.9 V 4.900 V 3.234 V 2.450 V 1.764 V 1.470 V 1.176 V 0.882 V 5.0 V 3.3 V 2.5 V 1.8 V 1.5 V 1.2 V 0.9 V 5.100 V 3.366 V 2.550 V 1.836 V 1.530 V 1.224 V 0.918 V Test condition: Vin=12 V, lout=full load Min Typ Max Notes
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 V - 13.2 V Input 0.9 V - 5.0 V/15 A Output
Output Specifications (continued)
Parameter Load Regulation 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=0.9 V Line Regulation 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=0.9 V Regulation Over Temperature (-40 C to +85 C) 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=0.9 V Output Current Current Limit Threshold Short Circuit Surge Transient 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=0.9 V Turn on Time 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=0.9 V Overshoot at Turn on Output Capacitoracitance Output Ripple and Noise (pk-pk) 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=0.9 V 60 mV 60 mV 50 mV 40 mV 40 mV 30 mV 20 mV 100 mV 100 mV 90 mV 80 mV 80 mV 70 mV 60 mV Test conditions: 0-20 MHz BW; 22 uF tantalum capacitor at the output 280 mS 280 mS 240 mS 220 mS 200 mS 190 mS 170 mS 310 mS 310 mS 270 mS 250 mS 230 mS 220 mS 200 mS 5%Vo,set 6800 uF 15 mV 10 mV 7 mV 5 mV 3 mV 3 mV 3 mV 35 mV 20 mV 15 mV 10 mV 10 mV 10 mV 10 mV 15 mV 10 mV 8 mV 6 mV 5 mV 5 mV 5 mV 40 mV 20 mV 20 mV 15 mV 15 mV 15 mV 15 mV Min Typ Max Notes
0A 18 A -
40 mV 15 mV 10 mV 5 mV 5 mV 5 mV 2 mV 4.5 A s 2 3.9 A s 2 3A s 2 3A s 2 3A s 2 3A s 2 2.5 A s
2
80 mV 30 mV 20 mV 15 mV 15 mV 15 mV 10 mV 15 A 45 A 9A s 2 7.8 A s 2 6A s 2 6A s 2 6A s 2 6A s 2 5A s
2
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 V - 13.2 V Input 0.9 V - 5.0 V/15 A Output
Output Specifications (continued)
Parameter Output Ripple and Noise (rms) 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=0.9 V Transient Response (Vin=12 V) 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time Transient Response (Vin=5 V) 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time VO=0.9 V 3.3 V 120 mV 70 uS 120 mV 70 uS 160 mV 120 uS 160 mV 120 uS Test conditions: di/dt = 0.5 A/uS; Vin =5 V; with one 470 uF tantalum capacitor at the output VO=0.9 V 2.5 V VO=3.3 V VO=5.0 V 150 mV 60 uS 150 mV 60 uS 80 mV 60 uS 80 mV 60 uS 70 mV 60 uS 70 mV 60 uS 220 mV 100 uS 220 mV 100 uS 120 mV 100 uS 120 mV 100 uS 120 mV 90 uS 120 mV 90 uS Test conditions: di/dt=0.5 A/us, Vin=12.0 Vdc, and with a 470 uF tantalum capacitor at the output except Vo=5.0 V Min Typ 25 mV 20 mV 15 mV 10 mV 10 mV 10 mV 5 mV Max 50 mV 40 mV 30 mV 20 mV 20 mV 20 mV 15 mV Notes
Test conditions: 0-20 MHz BW; 22 uF tantalum capacitor at the output
Note: All specifications are typical 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
4.5 V - 13.2 V Input 0.9 V - 5.0 V/15 A Output
General Specifications
Parameter 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=0.9 V Efficiency Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.9 V Switching Frequency Output Voltage Trim Range (Wide Trim) Output Voltage Trim Range (Narrow Trim) Vo=1.2 V-5.0 V Vo=0.9 V Remote Sense Compensation MTBF Dimensions Inches (L x W x H) Millimeters (L x W x H) Weight 2.0 x 0.55 x 0.36 50.8 x 13.97 x 9.14 10 g 88% 86% 83% 81% 79% 75% 180 kHz 93% 91% 88% 86% 83% 81% 200 kHz 220 kHz 403%Vo VRPB-15E1Ax Measured at Vin=5 V, full load. 88% 87% 85% 83% 81% 79% 75% 92.6% 92% 90% 88% 86% 84% 80% Min Typ Max Notes
Measured at Vin=12 V, full load.
90%Vo -
3,714,560 hours
110%Vo 110%Vo 10%Vo
VRPB-15Exxx
Calculated Per Bell Core SR332 (IO = 80%Iomax; Vo=1.8 V; Vin=12 V; Ta = 25 C)
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) -0.3 V 2.8 V -0.3 V 2.8 V 0.4 V 13.2 V 0.4 V 13.2 V VRPB-15ExxS Min Typ Max Notes
VRPB-15ExxL
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 V - 13.2 V Input 0.9 V - 5.0 V/15 A Output
Output Trim Equations
Equations for calculating the trim resistor (in k) 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.
RTrimDown
A = -B Vnom - Vadj
Vout Rtrimdown Module Trim GND
Vout
RTrimUp =
Vadj
C -D - Vnom
Module
Trim Rtrimup GND
Vnom 0.9 - 3.63 5.0 3.3 2.5 1.8 1.5 1.2 0.9
A N/A 31.574 18.8157 12.7927 7.5426 5.2865 3.027 N/A
B N/A 19.010 25.310 30.110 39.110 33.610 24.410 N/A
C 6.008 6.008 6.008 6.008 6.008 6.008 6.008 6.008
D 2.150 11.50 17.800 22.600 31.600 26.100 16.900 64.900
Efficiency Data
MODULE 5.0V
100% EFFICIENCY 95% 90% 85% 80% 75% 70% 1.5 3.75 7.5 11.25 OUTPUT CURRENT 15.0
MODULE 3.3V 100.0% 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 1.5 3.75 7.5 11.25 15.0 OUTPUT CURRENT
EFFICIENCY
12V
5V 12V
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 V - 13.2 V Input 0.9 V - 5.0 V/15 A Output
Efficiency Data (continued)
MODULE 2.5V 100% EFFICIENCY 90% 80% 70% 60% 1.5 3.75 7.5 11.25 15.0 OUTPUT CURRENT 5V 12V
MODULE 1.8V 95% 90% 85% 80% 75% 70% 65% 60% 1.5 3.75 7.5 11.25 OUTPUT CURRENT 15.0 EFFICIENCY
5V 12V
MODULE 1.5V 95% 90% 85% 80% 75% 70% 65% 60% 1.5 3.75 7.5 11.25 OUTPUT CURRENT 15.0
90% EFFICIENCY 80% 70% 60% 50% 1.5
MODULE 1.2V
EFFICIENCY
5V 12V
5V 12V
3.75 7.5 11.25 OUTPUT CURRENT
15.0
MODULE 0.9V 90% EFFICIENCY 80% 70% 60% 50% 1.5 3.75 7.5 11.25 15.0 OUTPUT CURRENT 5V 12V
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 V - 13.2 V Input 0.9 V - 5.0 V/15 A Output
Thermal Derating Curves
(Vin=5.5 V, Vo=3.3 V)
(Vin=13.2 V, Vo=3.3 V)
Ripple and Noise
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 V - 13.2 V Input 0.9 V - 5.0 V/15 A Output Ripple and noise at full load, external load with 22 uF tantulm capacitor at the output, and Ta=25 deg C.
Vin=5 V, Vo=0.9 V
Vin=12 V, Vo=0.9 V
Vin=5 V, Vo=1.2 V
Vin=12 V, Vo=1.2 V
Vin=5 V, Vo=1.5 V
Vin=12 V, Vo=1.5 V
Ripple and Noise (continued)
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 V - 13.2 V Input 0.9 V - 5.0 V/15 A Output
Vin=5 V, Vo=1.8 V
Vin=12 V, Vo=1.8 V
Vin=5 V, Vo=2.5 V
Vin=12 V, Vo=2.5 V
Vin=5 V, Vo=3.3 V
Vin=12 V, Vo=3.3 V
Vin=12 V, Vo=5 V
Transient Response
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 V - 13.2 V Input 0.9 V - 5.0 V/15 A Output Transient response: di/dt=0.5 A/uS, external load capacitance Co=470 uF (tantalum capacitor), Ta=25 .
50% to 100% load Transient at Vin=5 V, Vo=0.9 V
100% to 50% load Transient at Vin=5 V, Vo=0.9 V
50% to 100% load Transient at Vin=5 V, Vo=1.2 V
100% to 50% load Transient at Vin=5 V, Vo=1.2 V
50% to 100% load Transient at Vin=5 V, Vo=1.5 V
100% to 50% load Transient at Vin=5 V, Vo=1.5 V
Transient Response (continued)
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 V - 13.2 V Input 0.9 V - 5.0 V/15 A Output
50% to 100% load Transient at Vin=5 V, Vo=1.8 V
100% to 50% load Transient at Vin=5 V, Vo=1.8 V
50% to 100% load Transient at Vin=5 V, Vo=2.5 V
100% to 50% load Transient at Vin=5 V, Vo=2.5 V
50% to 100% load Transient at Vin=5 V, Vo=3.3 V
100% to 50% load Transient at Vin=5 V, Vo=3.3 V
Transient Response (continued)
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 V - 13.2 V Input 0.9 V - 5.0 V/15 A Output
50% to 100% load Transient at Vin=12 V, Vo=0.9 V
100% to 50% load Transient at Vin=12 V, Vo=0.9 V
50% to 100% load Transient at Vin=12 V, Vo=1.2 V
100% to 50% load Transient at Vin=12 V, Vo=1.2 V
50% to 100% load Transient at Vin=12 V, Vo=1.5 V
100% to 50% load Transient at Vin=12 V, Vo=1.5 V
Transient Response (continued)
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 V - 13.2 V Input 0.9 V - 5.0 V/15 A Output
50% to 100% load Transient at Vin=12 V, Vo=1.8 V
100% to 50% load Transient at Vin=12 V, Vo=1.8 V
50% to 100% load Transient at Vin=12 V, Vo=2.5 V
100% to 50% load Transient at Vin=12 V, Vo=2.5 V
50% to 100% load Transient at Vin=12 V, Vo=3.3 V
100% to 50% load Transient at Vin=12 V, Vo=3.3 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
4.5 V - 13.2 V Input 0.9 V - 5.0 V/15 A Output
Mechanical Outline
Pin Connections
Pin 1 2 3 4 5 6 7 8 9 10 11 Function Vo+ Vo+ Opt. Remote Sense (+) Vo+ Ground Ground Vin+ Vin+ Not used Trim 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.
(c)2006 Bel Fuse Inc. Specifications subject to change without notice. 032906
CORPORATE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com
FAR EAST 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
EUROPE 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

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