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NON-ISOLATED DC/DC CONVERTERS
3.3 V Input 0.9 V-2.5 V/15 A Output
V7PB-15C Series
* * * * * * * Non-Isolated High Efficiency High Power Density Fixed Frequency (300 kHz) Low Cost Remote On/Off Industry Standard Footprint * * * * * * Over Temperature Protection Under-voltage Lockout (UVLO) OCP/SCP Industrial Temperature Range Remote Sense Active Low/High (option)
Description
The Bel V7PB-15Cxxx is part of the low cost non-isolated dc/dc converter series. The modules use a SIP package for ease of layout and space savings. The output is closely regulated and the efficiency is typically 93% at 2.5 V output at full load. Typical features include remote on/off, under-voltage lockout, over-current protection and short circuit protection.
Part Selection
Output Voltage 2.5 V 1.8 V 1.5 V 1.2 V 0.9 V Input Voltage 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V Max. Output Current 15 A 15 A 15 A 15 A 15 A Max. Output Power 37.5 W 27.0 W 22.5 W 18.0 W 13.5 W Typical Efficiency 93% 90% 89% 86% 83% Model Number Active Low V7PB-15C25L V7PB-15C18L V7PB-15C15L V7PB-15C12L V7PB-15C09L Model Number Active High V7PB-15C25S V7PB-15C18S V7PB-15C15S V7PB-15C12S V7PB-15C09S
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 Input Voltage (continuous) Output Enable Terminal Voltage Ambient Temperature Storage Temperature Min -0.3 V -0.3 V -40 C -55 C Typ Max 4V 6V 85 C 125 C Notes
Input Specifications
Parameter Input Voltage Input Current (full load) 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=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.9 V 120 mA 140 mA 160 mA 170 mA 180 mA 200 mA 200 mA 200 mA 200 mA 200 mA Min 3V Typ 3.3 V Max 3.6 V 15 A 11.5 A 9.5 A 8A 6A 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
3.3 V Input 0.9 V-2.5 V/15 A Output
Input Specifications (continued)
Parameter Remote Off Input Current 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) Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.9 V Input Reflected Ripple Current (rms) Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.9 V 2 I t Inrush Current Transient Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.9 V Turn-on Voltage Threshold Turn-off Voltage Threshold Min Typ 12 mA 12 mA 17 mA 15 mA 15 mA 80 mA 110 mA 130 mA 100 mA 85 mA 25 mA 30 mA 40 mA 30 mA 25 mA 0.02 A s 2 0.015 A s 2 0.01 A s 2 0.008 A s 2 0.008 A s 2.8 V 2.5 V
2
Max 20 mA 20 mA 20 mA 20 mA 20 mA 120 mA 160 mA 180 mA 150 mA 135 mA 40 mA 50 mA 60 mA 50 mA 40 mA 0.04 A s 2 0.03 A s 2 0.02 A s 2 0.016 A s 2 0.016 A s 2
Notes
Tested with simulated source impedance of 500nH and two 270uF/16V (P/N: 16SP270M SANYO) Oscon Capacitors at the input
Output Specifications
Parameter Output Voltage Set Point VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=0.9 V Load Regulation VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=0.9 V Line Regulation VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=0.9 V Regulation Over Temperature (-40C to +85 C) VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=0.9 V 4 mV 3 mV 3 mV 2 mV 2 mV 30 mV 20 mV 15 mV 15 mV 10 mV 7.5 mV 5.5 mV 4.5 mV 4.0 mV 4.0 mV 50 mV 40 mV 30 mV 25 mV 20 mV 6 mV 5 mV 4 mV 3 mV 3 mV 12.5 mV 9.0 mV 7.5 mV 6.0 mV 6.0 mV Min 2.450 V 1.764 V 1.470 V 1.176 V 0.882 V Typ 2.5 V 1.8 V 1.5 V 1.2 V 0.9 V Max 2.550 V 1.836 V 1.530 V 1.224 V 0.918 V Notes Test condition: Vin=3.3 V, lout=full load
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
3.3 V Input 0.9 V-2.5 V/15 A Output
Output Specifications (continued)
Parameter Output Current Current Limit Threshold Short Circuit Surge Transient Turn on Time Overshoot at Turn on Output Capacitance Output Ripple and Noise (pk-pk) VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=0.9 V Output Ripple and Noise (rms) VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=0.9 V Transient Response 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 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time VO=0.9 V VO=1.2 V VO=1.5 V VO=1.8 V VO=2.5 V 110 mV 40 uS 110 mV 40 uS 100 mV 40 uS 100 mV 40 uS 100 mV 40 uS 100 mV 40 uS 90 mV 40 uS 90 mV 40 uS 90 mV 40 uS 90 mV 40 uS 150 mV 80 uS 150 mV 80 uS 130 mV 80 uS 130 mV 80 uS 130 mV 80 uS 130 mV 80 uS 120 mV 80 uS 120 mV 80 uS 120 mV 80 uS 120 mV 80 uS Test conditions: di/dt = 0.5 A/uS; Vin = 3.3 V; and with two 220 uF Tantalum capacitor at the output 5 mV 7 mV 8 mV 6 mV 5 mV 10 mV 10 mV 12 mV 10 mV 10 mV Min 0A 18 A Typ 0.2 A s 6 mS 0% 20 mV 25 mV 30 mV 25 mV 20 mV
2
Max 15 A 35 A 0.4 A s 10 mS 3% 6800 uF 50 mV 50 mV 60 mV 50 mV 50 mV
2
Notes
Test conditions: 0-20 MHz BW; 0.1 uF ceramic capacitor and 10 uF aluminum 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
3.3 V Input 0.9 V-2.5 V/15 A Output
Min 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 Vo=2.5 V Vo=0.9 V-1.8 V Remote Sense Compensation VO=2.5 V VO=0.9 V-1.8 V MTBF Dimensions Inches (L x W x H) Millimeters (L x W x H) Weight 2.0 x 0.55 x 0.387 50.8 x 13.97 x 9.84 9.2 g 91% 88% 87% 84% 80% 250 kHz 90% VO 90% VO Typ 93% 90% 89% 86% 83% 300 kHz 4,163,010 hours Max 340 kHz 105% VO 110% VO 5% VO 10% VO Notes
General Specifications
Parameter Efficiency Measured at Vin=3.3 V, full load.
The total output adjust range will not be higher than 105% Vo for 2.5 V module, and 110% Vo for other modules. Calculated Per Bell Core TR-332 (IO = Nominal; Ta = 25C)
Note: All specifications are typical at 25 C unless otherwise stated.
Control Specifications
Parameter Min -0.3 V 2.5 V -0.3 V 2.5 V Typ Max 0.8 V 5.5 V 0.8 V 5.5 V Notes
Remote On/Off
Signal Low (Unit Off) Signal High (Unit On) Signal Low (Unit On) Signal High (Unit Off)
V7PB-15CxxS V7PB-15CxxL
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. Vout
Rtrim _ down =
A(Vadj - 0.8) Vnom - Vadj
Sense
-B
Module
trim GND
Rtrim_down
Vout
Rtrim _ up
Vnom
2.5 V 1.8 V 1.5 V 1.2 V 0.9 V
C = -D Vadj - Vnom
2.370 2.370 2.370 2.490 1.050
Sense
Module
trim
Rtrim_up
GND
A
4.990 4.990 4.990 2.370 0.010
B
1.896 1.896 1.896 1.992 0.840
C
4.990 4.990 4.990 2.370 0.010
D
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
3.3 V Input 0.9 V-2.5 V/15 A Output
Efficiency Data
Model 2.5V
Model 1.8V
97.0% 95.0% Efficiency
Efficiency
95.0% 93.0% 91.0%
93.0% 91.0% 89.0% 87.0% 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 Output Current 3.0V 3.3V 3.6V
89.0% 87.0% 85.0% 83.0% 81.0% 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 Output Current
3.0V
3.3V
3.6V
Model 1.5V
Model 1.2V
92.0% 90.0% 88.0% 86.0% 84.0% 82.0% 80.0% 78.0% 76.0% 74.0% 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 Output Current 3.0V 3.3V 3.6V
92.0% 90.0% 88.0% 86.0% 84.0% 82.0% 80.0% 78.0% 76.0% 74.0% 72.0% 70.0% 1.0 2.0 3.0 4.0 5.0 6.0 7.0
Efficiency
Efficiency
t
8.0
9.0 10.0 11.0 12.0 13.0 14.0 15.0
Output Current
3.0V
3.3V
3.6V
Model 0.9V
90.0% 88.0% 86.0% 84.0% 82.0% 80.0% 78.0% 76.0% 74.0% 72.0% 70.0% 68.0% 66.0% 64.0% 62.0% 60.0% 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 Output Current
Efficiency
3.0V
3.3V
3.6V
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
3.3 V Input 0.9 V-2.5 V/15 A Output
Thermal Derating Curve
V7PB-15Cxxx
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
3.3 V Input 0.9 V-2.5 V/15 A Output
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
2005 Bel Fuse Inc. Specifications subject to change without notice. 041105
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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