NON-ISOLATED DC/DC CONVERTERS POWER PRODUCTS 12V Input / 1.5 – 3.3V Output / 3A BP01V7PA-03A V7PA-03A Series • Nonisolated • Fixed frequency • High efficiency means less power dissipation • Optimized for cost • Remote on/off • Undervoltage lockout • Over current and short circuit protection Description The Bel V7PA-03A 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 1.5V to 3.3V. They are packaged in a single-in-line footprint and provide a maximum 3A output. Standard features include remote on/off, over current protection and output voltage adjust. 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 • Telecommunications • Networking • Computers and peripherals Part Number Selection Output Voltage Input Voltage Max. Output Current Max. Output Power Typical Efficiency Part Number 3.3V 12V 3A 10W 89% V7PA-03A330 2.5V 12V 3A 7.5W 86% V7PA-03A250 1.5V 12V 3A 4.5W 82% V7PA-03A150 ©2002 Bel Fuse Inc. Specifications subject to change without notice. 01.02 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 / 1.5 – 3.3V Output / 3A BP01V7PA-03A Absolute Maximum Ratings Parameter Max Unit -0.3 15 V Vouten -0.3 15 V Ambient Temperature Tamb 0 70 °C Storage Temperature Tstor -40 100 °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 1.3 A 50 mA No Load Input Current Remote Off Input Current 3 15 mA Input Reflected Ripple Current1 20 30 mArms Input Reflected Ripple Current (P-P)1 65 100 mApk I2t Inrush Current Transient 0.03 0.06 A2s Turn On Voltage Threshold 9.7 Turn Off Voltage Threshold 8 8.8 V 10 V Note: Input capacitance 270µF/16V, ESR = 0.03 Ω max at 100kHz @ 25° C. 1. With simulated source impedance of 500nH, 5Hz to 20MHz. ©2002 Bel Fuse Inc. Specifications subject to change without notice. 01.02 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 / 1.5 – 3.3V Output / 3A BP01V7PA-03A Output Specifications Parameter Module Min Typical Max 3.247 2.460 1.476 3.3 2.5 1.5 3.353 2.540 1.524 3.3V 2.5V 1.5V 7 5 3 16 10 10 All 3 10 3.3V 2.5V 1.5V 5 5 5 45 35 20 3.3V 2.5V 1.5V 15 8 8 70 55 40 Output Ripple and Noise2 All 70 100 mVp-p Output Ripple and Noise2 All 19 25 mVrms Output Current Range All Iout 0 3 A Output DC Current Limit All Ioutlim 3.6 7.5 A Output Voltage Set Point1 Symbol Vout 3.3V 2.5V 1.5V V mV Load Regulation Line Regulation Regulation Over Temperature 0° - 70° C Units mV mV mV Total Output Voltage Regulation Short Circuit Surge A2s Ioutsurge 3.3V 2.5V 1.5V Turn on Time All Overshoot at Turn On All Output Capacitance All Ton Cout 220 0.005 0.012 0.017 0.010 0.024 0.034 40 60 ms 0 3 % 1500 µF 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. 2. 0 - 20MHz BW, 0.1µF ceramic cap on output. ©2002 Bel Fuse Inc. Specifications subject to change without notice. 01.02 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 / 1.5 – 3.3V Output / 3A BP01V7PA-03A Output Specifications Parameter Module Symbol Min Typical Max Units 70 165 mV 60 100 µs 70 165 mV 60 100 µs 58 165 mV 80 100 µs 48 165 mV 80 100 µs 58 165 mV 50 100 µs 46 165 mV 52 100 µs Transient Response3 ∆V 50% to 100% of Max Load Settling Time ∆V 100% to 50% of Max Load Ts 3.3V Settling Time Ts Transient Response3 ∆V 50% to 100% of Max Load Settling Time ∆V 100% to 50% of Max Load Ts 2.5V Settling Time Ts Transient Response3 ∆V 50% to 100% of Max Load Settling Time ∆V 100% to 50% of Max Load Ts 1.5V 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 220µF aluminum cap on output. ©2002 Bel Fuse Inc. Specifications subject to change without notice. 01.02 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 / 1.5 – 3.3V Output / 3A BP01V7PA-03A General Specifications Parameter Module Symbol Min Typical 86 83 79 89 86 82 3.3V 2.5V 1.5V 255 255 195 300 300 230 3.3V 2.5V 1.5V 70 70 90 Max Units η Efficiency1 % 3.3V 2.5V 1.5V Switching Frequency Fsw kHz 345 345 265 % Output Voltage Trim Range 110 110 120 Remote Sense Compensation All N/A V Weight All 6.3 g 1. Vin=12V, full load and Ta=25° C. Control Specifications Parameter Remote On/Off Module Symbol All Vouten Min Typical Max Units V Signal Low (Unit Off) All -0.3 0.3 V Signal High (Unit On) All 2.8 13.2 V ©2002 Bel Fuse Inc. Specifications subject to change without notice. 01.02 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 / 1.5 – 3.3V Output / 3A BP01V7PA-03A Efficiency Data EFFICIENCY Module 3.3V 95% 90% 85% 80% 75% 70% 65% 60% 10.8V 12.0V 13.2V 0.5 1.0 1.5 2.0 2.5 3.0 OUTPUT CURRENT Module 2.5V 90.0% EFFICIENCY 85.0% 75.0% 10.8V 12V 70.0% 13.2V 80.0% 65.0% 60.0% 0.5 1.0 1.5 2.0 2.5 3.0 OUTPUT CURRENT Module 1.5V EFFICIENCY 85.0% 80.0% 10.8V 75.0% 12.0V 70.0% 13.2V 65.0% 60.0% 0.5 1.0 1.5 2.0 2.5 3.0 OUTPUT CURRENT ©2002 Bel Fuse Inc. Specifications subject to change without notice. 01.02 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 / 1.5 – 3.3V Output / 3A BP01V7PA-03A Ripple and Noise Ripple and noise at full load and 12Vdc input and Ta=25° C Transient Response Transient response: di/dt = 0.5A/µS, external load capacitance Co = 220µF (electrolytic) 50% to 100% load transients at 12V input and Ta=25° C 100% to 50% load transients at 12V input and Ta=25° C ©2002 Bel Fuse Inc. Specifications subject to change without notice. 01.02 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 / 1.5 – 3.3V Output / 3A BP01V7PA-03A Thermal Considerations Derating Curve 3.0 150LFM Output Current (A) 2.5 2.0 1.5 Natural Convection 1.0 0.5 0 0˚C 10˚C 20˚C 30˚C 40˚C 50˚C 60˚C 70˚C Ambient Temperature, Ta (˚C) Output Current vs. Local Ambient Temperature and Air Velocity ©2002 Bel Fuse Inc. Specifications subject to change without notice. 01.02 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 / 1.5 – 3.3V Output / 3A BP01V7PA-03A Mechanical 0.37 [9.40] max 2.16 [54.86] 0.20 [5.08] 0.55 [13.97] 0.063 [1.60] 0.025 [0.64] 0.28 [7.11] 0.10 [2.54] 1.60 [40.64] 0.193 [4.90] 0.13 [3.30] Dimensions are in inches [millimeters]. Standard dimension tolerance is ±0.005 [0.13] unless otherwise noted. Pin Function 1 Trim 2 +Vo 3 +Vo 4 Ground 5 Ground 6 Ground 7 +Vin 8 Remote On/Off 1 2 3 4 5 6 7 8 ©2001 Bel Fuse Inc. Specifications subject to change without notice. 12.01 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 9