SRAH-05A100

NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A 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 POWER PRODUCTS BP05xRAH-05A 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 5.0V 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 0.9 ~ 3.63V 0.9 ~ 3.63V Input Voltage 12V 12V 12V 12V 12V 12V 12V 12V 12V 12V 12V Max. Output Current 5A 5A 5A 5A 5A 5A 5A 5A 5A 5A 5A Max. Output Power 25W 25W 16.5W 12.5W 9.0W 7.5W 6.0W 5.0W 4.5W 18.2W 18.2W Typical Efficiency 91.5% 91.5% 88% 86% 83% 81% 78% 76% 73% 88% 88% Part Number Surface Mount SRAH-05A500 SRAH-05A50F* SRAH-05A330 SRAH-05A250 SRAH-05A180 SRAH-05A150 SRAH-05A120 SRAH-05A100 SRAH-05A090 SRAH-05A1A0 SRAH-05A1AF* Part Number Vertical Mount VRAH-05A500 VRAH-05A50F* VRAH-05A330 VRAH-05A250 VRAH-05A180 VRAH-05A150 VRAH-05A120 VRAH-05A100 VRAH-05A090 VRAH-05A1A0 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 POWER PRODUCTS BP05xRAH-05A NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A Absolute Maximum Ratings Parameter Continuous Input Voltage Output Enable Terminal Voltage Ambient Temperature Storage Temperature Symbol Vin Vouten Tamb Tstor Min -0.3 -0.3 -40 -40 Typical Max 15 15 85 125 Unit V V °C °C 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 Input Current 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V No Load Input Current Remote Off Input Current Input Reflected Ripple Current1 Input Reflected Ripple Current (P-P)1 I2t Inrush Current Transient Turn On Voltage Threshold Turn Off Voltage Threshold All All All All All All All 8.5 3 50 150 0.006 9.8 9.0 9.6 0.012 Module All Symbol Vin Iin 2.8 2.0 1.5 1.2 1.0 0.8 0.7 0.65 50 10 mA mA mArms mApk A2s V V Min 10.8 Typical Max 13.2 Units V A 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 12V Input / 0.9V – 5.0V Output / 5A POWER PRODUCTS BP05xRAH-05A Output Specifications Parameter Output Voltage Set Point 1 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V Load Regulation 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V Line Regulation 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V Regulation Over Temperature (-40° to 85° C) 3 3 3 2 2 2 1 1 10 10 10 10 10 10 10 10 mV 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 mV 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 15 8 8 5 5 5 5 4 30 20 20 15 15 15 15 15 mV Module Symbol Vout 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 mV Min Typical Max Units V Total Output Voltage Regulation (-40° to 85° C) 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 POWER PRODUCTS BP05xRAH-05A NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A Output Specifications Parameter Output Ripple and Noise 2 Module Symbol Min Typical Max Units mVp-p 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V Output Ripple and Noise 2 70 70 60 50 50 40 30 30 100 100 100 100 80 80 60 60 mVrms 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V Output Current Range Output DC Current Limit Shor t Circuit Surge 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V Turn on Time 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V 0.9V Turn on Time3 Overshoot at Turn On Overshoot at Turn On3 1.2 - 5.0V 0.9V - 1.0V Output Capacitance All Cout 0 0.9V - 5.0V All Ton Ton All All Iout Ioutlim Ioutsurge 0 6 30 30 30 20 20 15 15 10 60 60 60 40 40 30 30 20 5 12.5 A A A2s 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 ms 180 130 130 130 130 130 130 130 130 10 0 250 200 200 200 200 200 200 200 200 20 3 ms % % 0 3 3 10 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 12V Input / 0.9V – 5.0V Output / 5A POWER PRODUCTS BP05xRAH-05A Output Specifications Parameter Transient Response 3 Module Symbol Min Typical Max Units ∆V 50% to 100% of Max Load Settling Time 5.0V ∆V 100% to 50% of Max Load Settling Time Transient Response 3 100 Ts 60 100 Ts 60 150 100 150 100 mV µs mV µs ∆V 50% to 100% of Max Load Settling Time 3.3V ∆V 100% to 50% of Max Load Settling Time Transient Response 3 100 Ts 50 100 Ts 50 150 80 150 80 mV µs mV µs ∆V 50% to 100% of Max Load Settling Time 2.5V ∆V 100% to 50% of Max Load Settling Time Transient Response 3 100 Ts 50 100 Ts 50 150 80 150 80 mV µs mV µs ∆V 50% to 100% of Max Load Settling Time 1.8V ∆V 100% to 50% of Max Load Settling Time Ts Ts 100 50 100 50 150 80 150 80 mV µs mV µs 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 POWER PRODUCTS BP05xRAH-05A NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A Output Specifications Parameter Transient Response 3 Module Symbol Min Typical Max Units ∆V 50% to 100% of Max Load Settling Time 1.5V ∆V 100% to 50% of Max Load Settling Time Transient Response 3 80 Ts 50 80 Ts 50 120 80 120 80 mV µs mV µs ∆V 50% to 100% of Max Load Settling Time 1.2V ∆V 100% to 50% of Max Load Settling Time Transient Response 3 80 Ts 50 80 Ts 50 120 80 120 80 mV µs mV µs ∆V 50% to 100% of Max Load Settling Time 1.0V ∆V 100% to 50% of Max Load Settling Time Transient Response 3 80 Ts 50 80 Ts 50 120 80 120 80 mV µs mV µs ∆V 50% to 100% of Max Load Settling Time 0.9V ∆V 100% to 50% of Max Load Settling Time Ts Ts 80 50 80 50 120 80 120 80 mV µs mV µs 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 12V Input / 0.9V – 5.0V Output / 5A POWER PRODUCTS BP05xRAH-05A General Specifications Parameter Efficiency1 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V Switching Frequency 0.9V ~ 3.3V 5.0V Output Voltage Trim Range (Wide Trim)2 Output Voltage Trim Range (Narrow Trim)2 0.9V Fsw 210 330 250 370 290 410 403 % % Module Symbol η 89 86 84 81 79 76 74 71 91 88 86 83 81 78 76 73 kHz Min Typical Max Units % 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V 0.9V All 90 90 90 90 90 90 90 90 4.9 110 110 110 110 110 110 110 110 Weight g 1. Vin=12V, full load and Ta=25° C. 2. See graphs on pages 17-25. Control Specifications Parameter Remote On/Off 3 Signal Low (Unit Off) Signal High (Unit On) Module All All All Symbol Vouten -0.3 2.8 1 13.2 Min Typical Max Units V V 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 POWER PRODUCTS BP05xRAH-05A NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A Efficiency Data MODULE 5.0V 100% EFFICIENCY MODULE 3.3V 95% EFFICIENCY 90% 85% 80% 75% 70% 0.50 10.8 12 13.2 95% 90% 85% 80% 75% 70% 0.50 1.25 2.50 OUTPUT CURRENT 3.75 5.00 10.8 12 13.2 1.25 2.50 3.75 5.00 OUTPUT CURRENT MODULE 2.5V 95% 90% EFFICIENCY 85% 80% 75% 70% 65% 0.50 1.25 2.50 3.75 5.00 10.8 12 13.2 EFFICIENCY 90% 85% 80% 75% 70% 65% 60% 0.50 1.25 MODULE 1.8V 10.8 12 13.2 2.50 3.75 5.00 OUTPUT CURRENT 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 8 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A Efficiency Data POWER PRODUCTS BP05xRAH-05A MODULE 1.5V 90% 85% EFFICIENCY EFFICIENCY 85% 80% MODULE 1.2V 80% 75% 70% 65% 60% 0.50 1.25 2.50 3.75 5.00 10.8 12 13.2 75% 70% 65% 60% 55% 50% 0.50 10.8 12 13.2 1.25 2.50 3.75 5.00 OUTPUT CURRENT OUTPUT CURRENT MODULE 1.0V 85% 80% 75% 70% 65% 60% 55% 50% 0.50 1.25 2.50 3.75 5.00 MODULE 0.9V 85% 80% 75% 70% 65% 60% 55% 50% 0.50 EFFICIENCY EFFICIENCY 10.8 12 13.2 10.8 12 13.2 1.25 2.50 3.75 5.00 OUTPUT CURRENT 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 BP05xRAH-05A NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A 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, 3.3Vdc output and Ta=25° C Ripple and noise at full load and 12Vdc input, 2.5Vdc output and Ta=25° C Ripple and noise at full load and 12Vdc input, 1.8Vdc 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 10 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A 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. POWER PRODUCTS BP05xRAH-05A 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, 1.2Vdc 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, 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 BP05xRAH-05A NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A 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=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 ©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 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 BP05xRAH-05A NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A 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 ©2005 Bel Fuse Inc. Specifications subject to change without notice. 03.05 Vout=1.0V 100% to 50% load transients at 12V input and Ta=25° C 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 BP05xRAH-05A NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A 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 Vo Trim Up Test Circuit 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 BP05xRAH-05A NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A Output Voltage Set-Point Adjustment xRAH-05A090 Trim Resistor Calculation Rtrim up = ( 3.712 – 40.2) 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 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 = ( 0.9516 – 8.47) Kohm Vo, adj – Vo Rtrim up = ( 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 BP05xRAH-05A NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A Output Voltage Set-Point Adjustment xRAH-05A120 Trim Resistor Calculation Rtrim down = ( 1.879 – 14.640) Kohm Vo, adj – Vo Rtrim up = ( 3.712 – 10) 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 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 = ( 3.273 – 20.84) Kohm Vo, adj – Vo Rtrim up = ( 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 BP05xRAH-05A NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A Output Voltage Set-Point Adjustment xRAH-05A180 Trim Resistor Calculation Rtrim down = ( 4.669 – 24.24) Kohm Vo, adj – Vo Rtrim up = ( 3.712 – 19.6) 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 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 = ( 7.912 – 17.94) Kohm Vo, adj – Vo Rtrim up = ( 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 BP05xRAH-05A NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A Output Voltage Set-Point Adjustment xRAH-05A330 Trim Resistor Calculation Rtrim down = ( 11.614 – 14.64) Kohm Vo, adj – Vo Rtrim up = ( 3.712 – 10) 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 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 = ( 19.4618 – 10.83) Kohm Vo, adj – Vo Rtrim up = ( 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 POWER PRODUCTS BP05xRAH-05A NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A Mechanical SRAH-05A Suggested PCB Pad Layout 0.400 [10.16] 0.065 [1.65] 0.60 [15.24] 0.050 [1.27] 0.855 [21.72] 0.110 [2.79] 0.70 [17.78] R0.015 [R0.38] typ 0.100 [2.54] R0.008 [R0.20] typ 0.012 [0.30] 0˚-5˚ 0.004 [0.10] 0.050 [1.27] 0.400 [10.16] 0.100 [2.54] 4x 0.320 [8.13] 0.020 [0.51] 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. Pin 1 2 3 4 5 6 7 Function Remote On/Off +Vin Ground +Vo Trim No Connection No Connection 7 6 12345 ©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 26 NON-ISOLATED DC/DC CONVERTERS 12V Input / 0.9V – 5.0V Output / 5A Mechanical VRAH-05A 0.600 [15.24] 0.050 [1.27] 0.700 [17.78] POWER PRODUCTS BP05xRAH-05A 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 1 2 3 4 5 Function Remote On/Off +Vin Ground +Vo Trim 12345 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 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 page 27