NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A V7PB-10A Series * Nonisolated * Industry standard pinout * Fixed frequency * High efficiency means less power dissipation * Optimized for cost * Remote on/off * Remote sense * Undervoltage lockout * Over current and short circuit protection * Overtemperature shutdown Description The Bel V7PB-10A series modules are non-isolated, step down DC/DC power converters that operate from a nominal 12V source. These converters are available in a range of output voltages from 1.0V to 5.0V. They are packaged in an industry standard single-in-line footprint and provide a maximum 10A output. Standard features include remote on/off, remote sense, over current and short cicuit protection, overtemperature shutdown and output voltage adjust. Remote on/off logic is an optional feature. These products may be used almost anywhere low-voltage silicon is employed and a 12V source is available. Typical applications include file servers, routers, line cards and other computing and communications equipment. Applications Options * Telecommunications * * Networking * Computers and peripherals Remote on/off logic Part Number Selection Output Voltage Input Voltage Max. Output Current Max. Output Power Typical Efficiency Part Number Part Number Active Low Option 5.0V 12V 10A 50W 94% V7PB-10A50S V7PB-10A50L 3.3V 12V 10A 33W 92% V7PB-10A33S V7PB-10A33L 2.5V 12V 10A 25W 90% V7PB-10A25S V7PB-10A25L 2.0V 12V 10A 20W 88% V7PB-10A20S V7PB-10A20L 1.8V 12V 10A 18W 87% V7PB-10A18S V7PB-10A18L 1.5V 12V 10A 15W 86% V7PB-10A15S V7PB-10A15L 1.2V 12V 10A 12W 83% V7PB-10A12S V7PB-10A12L 1.0V 12V 10A 10W 82% V7PB-10A10S V7PB-10A10L (c)2003 Bel Fuse Inc. Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 1 NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A Absolute Maximum Ratings Parameter Max Unit -0.3 15 V Vouten -0.3 15 V Ambient Temperature Tamb -40 85 C Storage Temperature Tstor -40 125 C Continuous Input Voltage Output Enable Terminal Voltage Symbol Min Vin Typical Note: Use beyond the maximum ratings may cause a reliability degradation of the DC/DC converter or may permanently damage the device. Input Specifications Parameter Symbol Min Operating Input Voltage Vin 10.8 Input Current Iin Typical Max Units 13.2 V 5.5 A 60 mA 15 mA Input Reflected Ripple Current1 120 mArms Input Reflected Ripple Current (P-P)1 300 mApk 0.12 A 2s No Load Input Current Remote Off Input Current 3 I2t Inrush Current Transient 0.08 Turn On Voltage Threshold 9.7 Turn Off Voltage Threshold 8.0 8.8 V 10.0 V Note: Input capacitance 22F tantalum. 1. With simulated source impedance of 800nH, 5Hz to 20MHz. (c)2003 Bel Fuse Inc. Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 2 NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A Output Specifications Parameter Module Min Typical Max 4.900 3.247 2.460 1.968 1.771 1.476 1.181 0.984 5.0 3.3 2.5 2.0 1.8 1.5 1.2 1.0 5.100 3.353 2.540 2.032 1.829 1.524 1.219 1.016 5.0V 3.3V 2.5V 2.0V 1.8V 1.5V 1.2V 1.0V 10 6 6 5 5 3 3 3 20 16 12 10 9 7 6 5 5.0V 3.3V 2.5V 2.0V 1.8V 1.5V 1.2V 1.0V 2 2 2 2 2 2 2 2 10 10 8 6 5 5 5 5 5.0V 3.3V 2.5V 2.0V 1.8V 1.5V 1.2V 1.0V 17 15 12 11 10 9 8 7 35 30 25 22 20 18 16 15 5.0V 3.3V 2.5V 2.0V 1.8V 1.5V 1.2V 1.0V 29 23 20 18 17 14 13 12 65 56 45 38 34 30 27 25 Output Voltage Set Point1 Symbol Units Vout 5.0V 3.3V 2.5V 2.0V 1.8V 1.5V 1.2V 1.0V V Load Regulation mV mV Line Regulation Regulation Over Temperature -40 to +85 C mV Total Output Voltage Regulation mV Note: All specifications are typical at nominal input, full load at 25 C unless otherwise stated. 1. Vin = 12V, Iout = full load, Ta = 25 C. (c)2003 Bel Fuse Inc. Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 3 NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A Output Specifications Parameter Module Symbol Min Typical Max 5.0V 3.3V 2.5V 2.0V 1.8V 1.5V 1.2V 1.0V 50 45 40 30 30 30 25 20 75 60 55 45 45 45 40 35 5.0V 3.3V 2.5V 2.0V 1.8V 1.5V 1.2V 1.0V 17 14 10 9 8 6 5 5 25 22 15 15 12 10 8 8 Output Ripple and Noise2 Units mVp-p Output Ripple and Noise2 mVrms Output Current Range All Iout 0 10 A Output DC Current Limit All Ioutlim 13 22 A Shor t Circuit Surge All Ioutsurge 1.5 A 2s Turn on Time All Ton 80 ms Overshoot at Turn On All 3 % Output Capacitance All 3300 F 0.8 0 Cout 0 Note: All specifications are typical at nominal input, full load at 25 C unless otherwise stated. 2. 0 - 20MHz BW, 22F tantalum cap on output. (c)2003 Bel Fuse Inc. Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 4 NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A Output Specifications Parameter Transient Response Module Symbol Min Typical Max Units 200 250 mV 50 80 s 200 250 mV 50 80 s 160 200 mV 50 80 s 160 200 mV 50 80 s 180 220 mV 50 80 s 180 220 mV 50 80 s 140 180 mV 50 80 s 140 180 mV 50 80 s 3 V 50% to 100% of Max Load Settling Time Ts 5.0V V 100% to 50% of Max Load Settling Time Transient Response Ts 3 V 50% to 100% of Max Load Settling Time Ts 3.3V V 100% to 50% of Max Load Settling Time Transient Response Ts 3 V 50% to 100% of Max Load Settling Time Ts 2.5V V 100% to 50% of Max Load Settling Time Transient Response Ts 3 V 50% to 100% of Max Load Settling Time Ts 2.0V V 100% to 50% of Max Load Settling Time Ts Note: All specifications are typical at nominal input, full load at 25 C unless otherwise stated. 3. di/dt = 0.5A/uS, Vin = 12VDC, Ta = 25 C, and with a 22F tantalum cap on output. (c)2003 Bel Fuse Inc. Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 5 NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A Output Specifications Parameter Module Symbol Min Typical Max Units 140 180 mV 50 80 s 140 180 mV 50 80 s 140 180 mV 50 80 s 140 180 mV 50 80 s 100 150 mV 50 80 s 100 150 mV 50 80 s 100 150 mV 50 80 s 100 150 mV 50 80 s Transient Response 3 V 50% to 100% of Max Load Settling Time Ts 1.8V V 100% to 50% of Max Load Settling Time Ts Transient Response 3 V 50% to 100% of Max Load Settling Time Ts 1.5V V 100% to 50% of Max Load Settling Time Ts Transient Response 3 V 50% to 100% of Max Load Settling Time Ts 1.2V V 100% to 50% of Max Load Settling Time Ts Transient Response 3 V 50% to 100% of Max Load Settling Time Ts 1.0V V 100% to 50% of Max Load Settling Time Ts Note: All specifications are typical at nominal input, full load at 25 C unless otherwise stated. 3. di/dt = 0.5A/uS, Vin = 12VDC, Ta = 25 C, and with a 22F tantalum cap on output. (c)2003 Bel Fuse Inc. Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 6 NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A General Specifications Parameter Module Symbol Min Typical 91 89 87 85 84 83 80 79 94 92 90 88 87 86 83 82 180 200 Max Efficiency1 5.0V 3.3V 2.5V 2.0V 1.8V 1.5V 1.2V 1.0V Switching Frequency All Fsw Over temperature Shutdown All Tc Output Voltage Trim Range2 All Remote Sense Compensation All Weight All Units % 220 130 90 kHz C 110 % 10 % 10 g 1. Vin=12V, full load and Ta=25 C. 2. 1V module is 95% to 110%. Control Specifications Parameter Remote On/Off Module Symbol All Vouten Signal Low (Unit Off) Min Typical Max Units V -0.3 0.4 V 2.8 13.2 V -0.3 0.4 V 2.8 13.2 V V7PB-10AxxS Signal High (Unit On) Signal Low (Unit On) V7PB-10AxxL Signal High (Unit Off) (c)2003 Bel Fuse Inc. Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 7 NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A Efficiency Data Module 5.0V 96% EFFICIENCY 94% 92% 10.8V 90% 12.0V 13.2V 88% 86% 84% 82% 1 2 3 4 5 6 7 8 9 10 OUTPUT CURRENT Module 3.3V 96% EFFICIENCY 94% 92% 10.8V 90% 12.0V 88% 13.2V 86% 84% 82% 1 2 3 4 5 6 7 8 9 10 OUTPUT CURRENT Module 2.5V 94% EFFICIENCY 92% 90% 10.8V 88% 12.0V 86% 13.2V 84% 82% 80% 1 2 3 4 5 6 7 8 9 10 OUTPUT CURRENT Module 2.0V 94% 92% EFFICIENCY 90% 88% 86% 10.8V 84% 12.0V 82% 13.2V 80% 78% 76% 74% 1 2 3 4 5 6 7 8 9 10 OUTPUT CURRENT (c)2003 Bel Fuse Inc. Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 8 NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A Efficiency Data Module 1.8V 92% 90% EFFICIENCY 88% 86% 10.8V 84% 12.0V 82% 13.2V 80% 78% 76% 74% 1 2 3 4 5 6 7 8 9 10 OUTPUT CURRENT EFFICIENCY Module 1.5V 92% 90% 88% 86% 84% 82% 80% 78% 76% 74% 72% 70% 10.8V 12.0V 13.2V 1 2 3 4 5 6 7 8 9 10 OUTPUT CURRENT Module 1.2V 91% EFFICIENCY 86% 81% 10.8V 12.0V 76% 13.2V 71% 66% 1 2 3 4 5 6 7 8 9 10 OUTPUT CURRENT Module 1.0V 89% EFFICIENCY 84% 79% 10.8V 12.0V 74% 13.2V 69% 64% 1 2 3 4 5 6 7 8 9 10 OUTPUT CURRENT (c)2003 Bel Fuse Inc. Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 9 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A Ripple and Noise Ripple and noise at full load and 12Vdc input, 5.0Vdc output, full load with an external 22F tantalum capacitor and Ta=25 C Ripple and noise at full load and 12Vdc input, 2.5Vdc output, full load with an external 22F tantalum capacitor and Ta=25 C (c)2003 Bel Fuse Inc. Ripple and noise at full load and 12Vdc input, 3.3Vdc output, full load with an external 22F tantalum capacitor and Ta=25 C Ripple and noise at full load and 12Vdc input, 2.0Vdc output, full load with an external 22F tantalum capacitor and Ta=25 C Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 10 NON-ISOLATED DC/DC CONVERTERS 12V Input / 1.0 - 5.0V Output / 10A POWER PRODUCTS BP02V7PB-10A Ripple and Noise Ripple and noise at full load and 12Vdc input, 1.8Vdc output, full load with an external 22F tantalum capacitor and Ta=25 C Ripple and noise at full load and 12Vdc input, 1.5Vdc output, full load with an external 22F tantalum capacitor and Ta=25 C Ripple and noise at full load and 12Vdc input, 1.2Vdc output, full load with an external 22F tantalum capacitor and Ta=25 C Ripple and noise at full load and 12Vdc input, 1.0Vdc output, full load with an external 22F tantalum capacitor and Ta=25 C (c)2003 Bel Fuse Inc. Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 11 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A Transient Response Transient response: di/dt = 0.5A/S, external load capacitance Co = 22F (Tantalum capacitor) Vout=5.0V 50% to 100% load transients at 12V input and Ta=25 C Vout=5.0V 100% to 50% load transients at 12V input and Ta=25 C Vout=3.3V 50% to 100% load transients at 12V input and Ta=25 C Vout=3.3V 100% to 50% load transients at 12V input and Ta=25 C (c)2003 Bel Fuse Inc. Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 12 NON-ISOLATED DC/DC CONVERTERS 12V Input / 1.0 - 5.0V Output / 10A POWER PRODUCTS BP02V7PB-10A Transient Response Transient response: di/dt = 0.5A/S, external load capacitance Co = 22F (Tantalum capacitor) Vout=2.5V 50% to 100% load transients at 12V input and Ta=25 C Vout=2.5V 100% to 50% load transients at 12V input and Ta=25 C Vout=2.0V 50% to 100% load transients at 12V input and Ta=25 C Vout=2.0V 100% to 50% load transients at 12V input and Ta=25 C (c)2003 Bel Fuse Inc. Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 13 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A Transient Response Transient response: di/dt = 0.5A/S, external load capacitance Co = 22F (Tantalum capacitor) Vout=1.8V 50% to 100% load transients at 12V input and Ta=25 C Vout=1.8V 100% to 50% load transients at 12V input and Ta=25 C Vout=1.5V 50% to 100% load transients at 12V input and Ta=25 C Vout=1.5V 100% to 50% load transients at 12V input and Ta=25 C (c)2003 Bel Fuse Inc. Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 14 NON-ISOLATED DC/DC CONVERTERS 12V Input / 1.0 - 5.0V Output / 10A POWER PRODUCTS BP02V7PB-10A Transient Response Transient response: di/dt = 0.5A/S, external load capacitance Co = 22F (Tantalum capacitor) Vout=1.2V 50% to 100% load transients at 12V input and Ta=25 C Vout=1.2V 100% to 50% load transients at 12V input and Ta=25 C Vout=1.0V 50% to 100% load transients at 12V input and Ta=25 C Vout=1.0V 100% to 50% load transients at 12V input and Ta=25 C (c)2003 Bel Fuse Inc. Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 15 NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A Thermal Considerations 100LFM Derating Curve 72 C 10 Output Current (A) 8 8A 6 4 Natural Convection 2 0 0 10 20 30 40 50 60 70 80 85 Ambient Temperature, Ta (C) Output Current vs. Local Ambient Temperature and Air Velocity (c)2003 Bel Fuse Inc. Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 16 NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A Output Voltage Set-Point Adjustment Trim Down Test Circuit Trim Up Test Circuit Vo Vo Trim Trim Gnd Gnd Output Voltage Set-Point Adjustment Rtrim down = ( 7.5 (Vo adj - 0.8) Vo nom - Vo, adj - 10) Kohm Trim resistor value Rtrim_down(Kohm) 300 V7PB-10A50x Trim Resistor Calculation 270 240 210 180 150 120 90 60 30 0 4.5 4.55 4.6 4.65 4.7 4.75 4.8 4.85 Adjusted output voltage Vo,adj (V) 5.05 5.1 5.15 5.2 5.25 5.3 5.35 Adjusted output voltage Vo,adj(V) 4.9 4.95 5 Rtrim up = ( Vo, adj - Vo nom - 10) Kohm Trim resistor value,Rtrim_up(Kohm) 300 6 270 240 210 180 150 120 90 60 30 0 5 (c)2003 Bel Fuse Inc. 5.4 5.45 5.5 Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 17 NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A V7PB-10A33x Trim Resistor Calculation 7.5 (Vo adj - 0.8) Rtrim down = ( Vo nom - Vo, adj - 15) Kohm 300 Trim resistor value Rtrim_down(Kohm) Output Voltage Set-Point Adjustment 270 240 210 180 150 120 90 60 30 0 2.97 3 3.04 3.33 3.37 3.07 3.1 3.13 3.17 3.2 3.23 Adjusted output voltage Vo,adj (V) 3.27 3.3 Rtrim up = ( 6 Vo, adj - Vo nom Trim resistor value,Rtrim_up(Kohm) 300 - 15) Kohm 270 240 210 180 150 120 90 60 30 0 3.3 3.4 3.43 3.46 3.5 3.53 Adjusted output voltage Vo,adj(V) 3.56 3.6 3.63 Trim resistor value Rtrim_down(Kohm) 300 V7PB-10A25x Trim Resistor Calculation 270 240 210 180 Rtrim down = ( 150 7.5 (Vo adj - 0.8) Vo nom - Vo, adj - 20) Kohm 120 90 60 30 0 2.25 2.27 2.3 2.33 2.35 2.38 2.4 2.42 2.45 Adjusted output voltage Vo,adj (V) 2.48 2.5 Trim resistor value,Rtrim_up(Kohm) 300 270 Rtrim up = 240 210 ( 6 Vo, adj - Vo nom - 20) Kohm 180 150 120 90 60 30 0 2.5 (c)2003 Bel Fuse Inc. 2.52 2.55 2.58 2.6 2.63 2.65 2.67 Adjusted output voltage Vo,adj(V) 2.7 2.73 2.75 Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 18 NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A Output Voltage Set-Point Adjustment Rtrim down = ( 4.64 (Vo adj - 0.8) Vo nom - Vo, adj - 15.4) Kohm Trim resistor value Rtrim_down(Kohm) V7PB-10A20x Trim Resistor Calculation 300 270 240 210 180 150 120 90 60 30 0 1.8 1.82 1.84 1.86 1.88 1.9 1.92 1.94 1.96 Adjusted output voltage Vo,adj (V) 2 2.02 2.04 2.06 2.08 2.1 2.12 2.14 Adjusted output voltage Vo,adj(V) 1.98 2 Rtrim up = ( 3.72 Vo, adj - Vo nom Trim resistor value,Rtrim_up(Kohm) 300 - 15.4) Kohm 270 240 210 180 150 120 90 60 30 0 2.16 2.18 2.2 Trim resistor value Rtrim_down(Kohm) 300 270 V7PB-10A18x Trim Resistor Calculation 240 210 180 150 Rtrim down = ( 120 4.64 (Vo adj - 0.8) Vo nom - Vo, adj - 16.9) Kohm 90 60 30 0 1.62 1.64 1.66 1.67 1.69 1.71 1.73 1.75 1.76 Adjusted output voltage Vo,adj (V) 1.78 1.8 Trim resistor value,Rtrim_up(Kohm) 300 270 Rtrim up = 240 210 ( 3.72 Vo, adj - Vo nom - 16.9) Kohm 180 150 120 90 60 30 0 1.8 1.82 1.84 1.85 1.87 1.89 1.91 1.93 Adjusted output voltage Vo,adj(V) 1.94 1.96 1.98 (c)2003 Bel Fuse Inc. Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 19 NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A Output Voltage Set-Point Adjustment V7PB-10A15x Trim Resistor Calculation 4.64 (Vo adj - 0.8) Vo nom - Vo, adj Rtrim down = ( - 13.3) Kohm Trim resistor value Rtrim_down(Kohm) 300 270 240 210 180 150 120 90 60 30 0 1.35 1.37 1.38 1.51 1.53 1.4 1.41 1.43 1.44 1.46 1.47 Adjusted output voltage Vo,adj (V) 1.49 1.5 Rtrim up = ( 3.72 Vo, adj - Vo nom - 13.3) Kohm Trim resistor value,Rtrim_up(Kohm) 300 270 240 210 180 150 120 90 60 30 0 1.5 1.54 1.56 1.58 1.59 1.61 Adjusted output voltage Vo,adj(V) 1.62 1.64 1.65 Trim resistor value Rtrim_down(Kohm) 300 270 V7PB-10A12x Trim Resistor Calculation 240 210 180 150 Rtrim down = ( 120 90 1.82 (Vo adj - 0.8) Vo nom - Vo, adj - 3.16) Kohm 60 30 0 1.08 1.09 1.1 1.12 1.13 1.14 1.15 1.16 1.18 Adjusted output voltage Vo,adj (V) 1.19 1.2 Trim resistor value,Rtrim_up(Kohm) 300 270 240 Rtrim up = 210 180 ( 1.46 Vo, adj - Vo nom - 3.16) Kohm 150 120 90 60 30 0 1.2 1.21 (c)2003 Bel Fuse Inc. 1.22 1.24 1.25 1.26 1.27 1.28 Adjusted output voltage Vo,adj(V) 1.3 1.31 1.32 Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 20 NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 1.0 - 5.0V Output / 10A BP02V7PB-10A Output Voltage Set-Point Adjustment V7PB-10A10x Trim Resistor Calculation Rtrim down = ( 1.82 (Vo adj - 0.8) Vo nom - Vo, adj - 0.909) Kohm Trim resistor value Rtrim_down(Kohm) 300 270 240 210 180 150 120 90 60 30 0 0.95 0.955 0.96 0.965 0.97 0.975 0.98 0.985 0.99 0.995 Adjusted output voltage Vo,adj (V) ( Vo, adj - Vo nom 300 - 0.909) Kohm Trim resistor value,Rtrim_up(Kohm) Rtrim up = 1.46 1 270 240 210 180 150 120 90 60 30 0 1 1.01 1.02 1.03 1.04 1.05 1.06 1.07 Adjusted output voltage Vo,adj(V) (c)2003 Bel Fuse Inc. 1.08 1.09 1.1 Specifications subject to change without notice. 03.03 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 * Tel 201-432-0463 * Fax 201-432-9542 * www.belfuse.com page 21 NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 1.0 - 5.0V Output / 10A BP01V7PC-10A Mechanical V7PB-10A 0.550 [13.97] 0.063 [1.60] 2.00 [50.80] 0.370 [9.40] 0.150 [3.81] 0.050 [1.27] 0.100 [2.54] 1 234 5 0.025 [0.64] 0.170 [4.31] 6 7 8 91011 Pin Function 1 +Vo 2 +Vo 3 Remote Sense 4 +Vo 5 Ground 6 Ground 7 +Vin 8 +Vin 9 No Pin 10 Trim 11 Remote On/Off (c)2003 Bel Fuse Inc. Specifications subject to change without notice. 03.03 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 page 22