NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 0.9V – 5.0V Output / 5A BP05xRAH-05A SRAH-05A / VRAH-05A Series • Nonisolated • Compact, low profile surface mount package • Fixed frequency • High efficiency means less power dissipation • Excellent thermal performance • Optimized for cost • Remote on/off • Undervoltage lockout (UVLO) • Over current and short circuit protection Description The Bel SRAH-05A and VRAH-05A modules are a series of 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 0.9V to 5.0V. They are packaged in a compact, overmolded package rated at 5A. Optional lead forming provides a vertical mount product for minimal footprint or a surface mount option for a very low profile. Standard features include remote on/off, over current and short circuit protection, output voltage adjust and industrial temperature ranges (-40° to +85° C). The output is closely regulated and the efficiency is typically 91.5% at full load. 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 • Distributed power architectures • Data networking equipment • Telecommunications • Computers and peripherals Part Number Selection Output Voltage Input Voltage Max. Output Current Max. Output Power Typical Efficiency Part Number Surface Mount Part Number Vertical Mount 5.0V 12V 5A 25W 91.5% SRAH-05A500 VRAH-05A500 5.0V 12V 5A 25W 91.5% SRAH-05A50F* VRAH-05A50F* 3.3V 12V 5A 16.5W 88% SRAH-05A330 VRAH-05A330 2.5V 12V 5A 12.5W 86% SRAH-05A250 VRAH-05A250 1.8V 12V 5A 9.0W 83% SRAH-05A180 VRAH-05A180 1.5V 12V 5A 7.5W 81% SRAH-05A150 VRAH-05A150 1.2V 12V 5A 6.0W 78% SRAH-05A120 VRAH-05A120 1.0V 12V 5A 5.0W 76% SRAH-05A100 VRAH-05A100 0.9V 12V 5A 4.5W 73% SRAH-05A090 VRAH-05A090 0.9 ~ 3.63V 12V 5A 18.2W 88% SRAH-05A1A0 VRAH-05A1A0 0.9 ~ 3.63V 12V 5A 18.2W 88% SRAH-05A1AF* VRAH-05A1AF* * F indicates fast start up. ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 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 / 0.9V – 5.0V Output / 5A BP05xRAH-05A 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 Operating Input Voltage Module Symbol Min All Vin 10.8 Input Current Typical Max Units 13.2 V Iin A 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 2.8 2.0 1.5 1.2 1.0 0.8 0.7 0.65 No Load Input Current All 50 mA Remote Off Input Current All 3 10 mA Input Reflected Ripple Current1 All 50 mArms Input Reflected Ripple Current (P-P)1 All 150 mApk I2t Inrush Current Transient All 0.006 Turn On Voltage Threshold All 9.8 Turn Off Voltage Threshold All 8.5 9.0 0.012 A2s V 9.6 V Note: Input capacitance one 270µF/16V, ESR = 0.018 Ω max at 100kHz @ 25° C. 1. With simulated source impedance of 500nH, 5Hz to 20MHz. ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 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 / 0.9V – 5.0V Output / 5A BP05xRAH-05A Output Specifications Parameter Module Min Typical Max 4.9 3.247 2.460 1.771 1.476 1.181 0.984 0.886 5 3.3 2.5 1.8 1.5 1.2 1.0 0.9 5.1 3.353 2.540 1.829 1.524 1.219 1.016 0.914 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 15 8 8 5 5 5 5 4 30 20 20 15 15 15 15 15 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 3 3 3 2 2 2 1 1 10 10 10 10 10 10 10 10 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 40 40 35 20 15 10 6 5 70 70 70 40 30 20 12 10 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 58 51 46 27 22 17 12 10 110 100 100 65 45 45 37 35 Output Voltage Set Point 1 Symbol Units Vout 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V V Load Regulation mV mV Line Regulation Regulation Over Temperature (-40° to 85° C) Total Output Voltage Regulation (-40° to 85° C) mV 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. ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 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 / 0.9V – 5.0V Output / 5A BP05xRAH-05A Output Specifications Parameter Module Output Ripple and Noise Output Ripple and Noise Symbol Min Typical Max 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 70 70 60 50 50 40 30 30 100 100 100 100 80 80 60 60 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 30 30 30 20 20 15 15 10 60 60 60 40 40 30 30 20 2 Units mVp-p 2 mVrms Output Current Range All Iout 0 5 A Output DC Current Limit All Ioutlim 6 12.5 A Shor t Circuit Surge A2s Ioutsurge 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 0.9 0.60 0.70 0.85 0.85 1.05 1.1 1.1 1.8 1.2 1.4 1.7 1.7 2.1 2.2 2.2 180 130 130 130 130 130 130 130 130 250 200 200 200 200 200 200 200 200 10 20 ms All 0 3 % 1.2 - 5.0V 0.9V - 1.0V 0 3 3 10 Ton Turn on Time ms 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 0.9V Turn on Time3 0.9V - 5.0V Overshoot at Turn On Ton Overshoot at Turn On3 Output Capacitance % All Cout 0 2200 µF Note: All specifications are typical at nominal input, full load at 25° C unless otherwise stated. 2. 0 - 20MHz, 22µF/6.3V X5R ceramic cap on output (10µF/10V X5R ceramic cap for 5.0V module). 3. For fast start up modules. ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 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 / 0.9V – 5.0V Output / 5A BP05xRAH-05A Output Specifications Parameter Transient Response Module Symbol Min Typical Max Units 100 150 mV 60 100 µs 100 150 mV 60 100 µs 100 150 mV 50 80 µs 100 150 mV 50 80 µs 100 150 mV 50 80 µs 100 150 mV 50 80 µs 100 150 mV 50 80 µs 100 150 mV 50 80 µs 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 1.8V ∆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, Ta = 25° C. 0.9V ~ 3.3V modules with 220µF/6.3V Tant cap (5.0V module with 100µF/10V tant cap). ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 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 / 0.9V – 5.0V Output / 5A BP05xRAH-05A Output Specifications Parameter Module Transient Response Symbol Min Typical Max Units 80 120 mV 50 80 µs 80 120 mV 50 80 µs 80 120 mV 50 80 µs 80 120 mV 50 80 µs 80 120 mV 50 80 µs 80 120 mV 50 80 µs 80 120 mV 50 80 µs 80 120 mV 50 80 µs 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 Transient Response 3 ∆V 50% to 100% of Max Load Settling Time Ts 0.9V ∆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, Ta = 25° C. 0.9V ~ 3.3V modules with 220µF/6.3V Tant cap (5.0V module with 100µF/10V tant cap). ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 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 / 0.9V – 5.0V Output / 5A BP05xRAH-05A General Specifications Parameter Module Symbol Min Typical 89 86 84 81 79 76 74 71 91 88 86 83 81 78 76 73 210 330 250 370 Max Units η Efficiency1 % 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V Switching Frequency Fsw kHz 0.9V ~ 3.3V 5.0V Output Voltage Trim Range (Wide Trim)2 290 410 0.9V Output Voltage Trim Range (Narrow Trim)2 403 90 90 90 90 90 90 90 90 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V Weight % % 110 110 110 110 110 110 110 110 4.9 All g 1. Vin=12V, full load and Ta=25° C. 2. See graphs on pages 17-25. Control Specifications Parameter Remote On/Off 3 Module Symbol All Vouten Min Typical Max Units V Signal Low (Unit Off) All -0.3 1 V Signal High (Unit On) All 2.8 13.2 V 3. With remote on/off pin 1 open, the module is on. ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 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 / 0.9V – 5.0V Output / 5A BP05xRAH-05A Efficiency Data MODULE 3.3V 100% 95% 95% 90% 90% 10.8 85% 12 80% 13.2 EFFICIENCY EFFICIENCY MODULE 5.0V 75% 70% 0.50 1.25 2.50 3.75 13.2 75% 1.25 2.50 3.75 OUTPUT CURRENT OUTPUT CURRENT MODULE 2.5V MODULE 1.8V 95% 5.00 90% 90% 85% 85% 10.8 80% 12 75% 13.2 70% EFFICIENCY EFFICIENCY 12 80% 70% 0.50 5.00 10.8 85% 80% 10.8 75% 12 70% 13.2 65% 65% 0.50 1.25 2.50 3.75 5.00 OUTPUT CURRENT ©2005 Bel Fuse Inc. 60% 0.50 1.25 2.50 3.75 5.00 OUTPUT CURRENT Specifications subject to change without notice. 03.05 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 / 0.9V – 5.0V Output / 5A BP05xRAH-05A Efficiency Data MODULE 1.5V MODULE 1.2V 90% 85% 80% 80% 10.8 75% 12 70% 13.2 EFFICIENCY EFFICIENCY 85% 65% 60% 0.50 1.25 2.50 3.75 75% 70% 65% 60% 10.8 12 13.2 55% 50% 0.50 5.00 1.25 OUTPUT CURRENT MODULE 1.0V 75% 10.8 70% 12 65% 13.2 60% 55% 2.50 3.75 OUTPUT CURRENT 5.00 EFFICIENCY EFFICIENCY 80% 1.25 3.75 5.00 MODULE 0.9V 85% 50% 0.50 2.50 OUTPUT CURRENT 85% 80% 75% 70% 65% 60% 55% 50% 0.50 10.8 12 13.2 1.25 2.50 3.75 5.00 OUTPUT CURRENT ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 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 / 0.9V – 5.0V Output / 5A BP05xRAH-05A Ripple and Noise 0.9V ~ 3.3V modules with 22µF/6.3V X5R ceramic cap at the output. 5.0V module with 10µF/10V X5R ceramic cap at the output. Ripple and noise at full load and 12Vdc input, 5.0Vdc output and Ta=25° C Ripple and noise at full load and 12Vdc input, 2.5Vdc output and Ta=25° C ©2005 Bel Fuse Inc. Ripple and noise at full load and 12Vdc input, 3.3Vdc output and Ta=25° C Ripple and noise at full load and 12Vdc input, 1.8Vdc output and Ta=25° C Specifications subject to change without notice. 03.05 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 / 0.9V – 5.0V Output / 5A POWER PRODUCTS BP05xRAH-05A Ripple and Noise 0.9V ~ 3.3V modules with 22µF/6.3V X5R ceramic cap at the output. 5.0V module with 10µF/10V X5R ceramic cap at the output. Ripple and noise at full load and 12Vdc input, 1.5Vdc output and Ta=25° C Ripple and noise at full load and 12Vdc input, 1.0Vdc output and Ta=25° C Ripple and noise at full load and 12Vdc input, 1.2Vdc output and Ta=25° C Ripple and noise at full load and 12Vdc input, 0.9Vdc output and Ta=25° C ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 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 / 0.9V – 5.0V Output / 5A BP05xRAH-05A Transient Response Transient response: di/dt = 0.5A/µS, 0.9V ~ 3.3V modules with 220µF/6.3V tant cap, 5.0V module with 100µF/10V tant cap. Vout=5.0V 50% to 100% load transients at 12V input and Ta=25° C Vout=3.3V 50% to 100% load transients at 12V input and Ta=25° C ©2005 Bel Fuse Inc. Vout=5.0V 100% to 50% load transients at 12V input and Ta=25° C Vout=3.3V 100% to 50% load transients at 12V input and Ta=25° C Specifications subject to change without notice. 03.05 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 / 0.9V – 5.0V Output / 5A POWER PRODUCTS BP05xRAH-05A Transient Response Transient response: di/dt = 0.5A/µS, 0.9V ~ 3.3V modules with 220µF/6.3V tant cap, 5.0V module with 100µF/10V tant cap. 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=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 ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 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 / 0.9V – 5.0V Output / 5A BP05xRAH-05A Transient Response Transient response: di/dt = 0.5A/µS, 0.9V ~ 3.3V modules with 220µF/6.3V tant cap, 5.0V module with 100µF/10V tant cap. 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 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 ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 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 / 0.9V – 5.0V Output / 5A POWER PRODUCTS BP05xRAH-05A Transient Response Transient response: di/dt = 0.5A/µS, 0.9V ~ 3.3V modules with 220µF/6.3V tant cap, 5.0V module with 100µF/10V tant cap. Vout=0.9V 50% to 100% load transients at 12V input and Ta=25° C Vout=0.9V 100% to 50% load transients at 12V input and Ta=25° C Thermal Considerations Vin = 12V xRAH-05A1A0 0.9 ~ 1.8V ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 15 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A BP05xRAH-05A Thermal Considerations xRAH-05A1A0 2.5V ~ 3.3V xRAH-05A500 ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 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 12V Input / 0.9V – 5.0V Output / 5A POWER PRODUCTS BP05xRAH-05A Output Voltage Set-Point Adjustment Trim Down Test Circuit Trim Up Test Circuit Vo Vo Trim Trim Gnd Gnd xRAH-05A1A0 Trim Resistor Calculation Rtrim up = ( 3.712 – 0.261) Kohm Vo, adj – Vo ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 17 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A BP05xRAH-05A Output Voltage Set-Point Adjustment xRAH-05A090 Trim Resistor Calculation Rtrim up = ( ©2005 Bel Fuse Inc. 3.712 – 40.2) Kohm Vo, adj – Vo Specifications subject to change without notice. 03.05 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 12V Input / 0.9V – 5.0V Output / 5A POWER PRODUCTS BP05xRAH-05A Output Voltage Set-Point Adjustment xRAH-05A100 Trim Resistor Calculation Rtrim down = Rtrim up = ( ( 0.9516 – 8.47) Kohm Vo, adj – Vo 3.712 – 3.83) Kohm Vo, adj – Vo ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 19 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A BP05xRAH-05A Output Voltage Set-Point Adjustment xRAH-05A120 Trim Resistor Calculation Rtrim down = Rtrim up = ( ©2005 Bel Fuse Inc. ( 1.879 – 14.640) Kohm Vo, adj – Vo 3.712 – 10) Kohm Vo, adj – Vo Specifications subject to change without notice. 03.05 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 12V Input / 0.9V – 5.0V Output / 5A POWER PRODUCTS BP05xRAH-05A Output Voltage Set-Point Adjustment xRAH-05A150 Trim Resistor Calculation Rtrim down = Rtrim up = ( ( 3.273 – 20.84) Kohm Vo, adj – Vo 3.712 Vo, adj – Vo – 16.2) Kohm ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 21 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A BP05xRAH-05A Output Voltage Set-Point Adjustment xRAH-05A180 Trim Resistor Calculation Rtrim down = Rtrim up = ( ©2005 Bel Fuse Inc. ( 4.669 – 24.24) Kohm Vo, adj – Vo 3.712 – 19.6) Kohm Vo, adj – Vo Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 22 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A POWER PRODUCTS BP05xRAH-05A Output Voltage Set-Point Adjustment xRAH-05A250 Trim Resistor Calculation Rtrim down = Rtrim up = ( ( 7.912 – 17.94) Kohm Vo, adj – Vo 3.712 – 13.3) Kohm Vo, adj – Vo ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 23 POWER PRODUCTS NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A BP05xRAH-05A Output Voltage Set-Point Adjustment xRAH-05A330 Trim Resistor Calculation Rtrim down = Rtrim up = ( ©2005 Bel Fuse Inc. ( 11.614 – 14.64) Kohm Vo, adj – Vo 3.712 – 10) Kohm Vo, adj – Vo Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 24 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A POWER PRODUCTS BP05xRAH-05A Output Voltage Set-Point Adjustment xRAH-05A500 Trim Resistor Calculation Rtrim down = Rtrim up = ( ( 19.4618 – 10.83) Kohm Vo, adj – Vo 3.712 – 6.19) Kohm Vo, adj – Vo ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 25 NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 0.9V – 5.0V Output / 5A BP05xRAH-05A Mechanical SRAH-05A Suggested PCB Pad Layout 0.400 [10.16] 0.60 [15.24] 0.065 [1.65] 0.110 [2.79] 0.855 [21.72] 0.050 [1.27] R0.015 [R0.38] typ 0.70 [17.78] R0.008 [R0.20] typ 0.100 [2.54] 0.012 [0.30] 0˚-5˚ 0.004 [0.10] 0.050 [1.27] 0.320 [8.13] 0.020 [0.51] 0.100 [2.54] 4x 0.400 [10.16] 0.055 [1.40] 2x 0.090 [2.29] 2x 0.780 [19.81] Dimensions are in inches [millimeters]. Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted. ©2005 Bel Fuse Inc. Pin Function 1 Remote On/Off 2 +Vin 3 Ground 4 +Vo 5 Trim 6 No Connection 7 No Connection 7 6 1 2 3 4 5 Specifications subject to change without notice. 03.05 Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com page 26 NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 0.9V – 5.0V Output / 5A BP05xRAH-05A 0.700 [17.78] Mechanical VRAH-05A 0.050 [1.27] 0.600 [15.24] 0.265 [6.73] min 0.050 [1.27] 0.100 [2.54] 0.400 [10.16] 0.020 [0.51] 0.308 [7.82] Dimensions are in inches [millimeters]. Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted. Pin Function 1 Remote On/Off 2 +Vin 3 Ground 4 +Vo 5 Trim 1 2 3 4 5 RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. These parts are not however compatible with the higher temperatures associated with lead free solder processes and must be soldered using a reflow profile with a peak temperature of no more than 240ºC. ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 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 27