NON-ISOLATED DC/DC CONVERTERS 2.4V-5.5V Input 0.75V-3.63V/16A Output V7BC-16F2Ax Series • Non-Isolated • Under-voltage Lockout (UVLO) • High Efficiency • Over Temperature Protection • High Power Density • Remote Sense • OCP/SCP • Wide Input • Fixed Frequency (300kHz) • Wide Trim • Flexible Output Voltage Sequencing • Converter can sink and source Current • Remote On/Off • Active Low/High (option) Description The Bel V7BC-16F2Ax modules are a series of non-isolated DC/DC converters that can deliver up to 16A of output current with full load efficiency of 94% at 3.3V output. These modules provide precisely regulated voltage programmable via external resistor from 0.75Vdc to 3.63Vdc over a wide range of input voltage(2.4V-5.5V). These modules have a sequencing feature that enables designers to implement various types of output voltage sequencing when powering multiple voltages on a board. Their open-frame construction and small footprint enable designers to develop cost and space-efficient solutions. Standard features include remote ON/OFF, programmable output voltage and over current protection. Part Selection Output Voltage Input Voltage Max. Output Current Max. Output Power Typical Efficiency Model Number Active Low Model Number Active High 0.75 V– 3.63V 2.4V – 5.5V 16A 58.1W 94% V7BC-16F2AL V7BC-16F2A0 Note: Add “G” suffix at the end of the model number to indicate “Tray Packaging”. Absolute Maximum Ratings Parameter Min Typ Max Input Voltage (continuous) -0.3V - 5.8V Output Enable Terminal Voltage -0.3V - 5.8V 1 -0.3V - Vin Ambient Temperature -40°C - 85°C Storage Temperature -55°C - 125°C Sequencing Voltage Notes Notes: All specifications are typical at 25°C unless otherwise stated. 1. V7BC-16F2Ax series of modules include a sequencing feature that enables users to implement various types of output voltage sequencing in their applications. This is accomplished via an additional sequencing pin. When the sequencing feature is not used, tie the SEQ pin to Vin. 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 2.4V-5.5V Input 0.75V-3.63V/16A Output Input Specifications Parameter Min Typ Max 4.5V 3.0V 2.4V - 5.5V 5.5V 5.5V Input Current (no load) Remote Off Input Current - 11.23A 6.47A 3.08A 80mA 10mA 12.89A 13.55A 6.67A 22mA Input Reflected Ripple Current (pk-pk) - 100mA - Input Reflected Ripple Current (RMS) - 40mA - - 2 Notes Input Voltage Input Current (full load) Vo=3.3V Vo=1.8V-2.5V Vo ≤ 1.5V Vo=3.3V Vo=1.8V Vo=0.75V 2 I t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold Tested with two 100uF/10V tantalum input capacitors (P/N: TPSC107K010R0075 AVX) & simulated source impedance of 1uH, 5Hz to 20MHz. 2 0.15A s 2.2V 2.0V 0.3A s - Output Specifications Parameter Output Voltage Set Point Min -2%Vo,set Typ - Max 2%Vo,set Output Voltage Set Point -3%Vo,set - 3%Vo,set - 0.4%Vo,set 0.3%Vo,set - Notes Vin=5V, lo=lomax full load Over all operating input voltages, resistive loads and temperature conditions Io=Io, min to Io, max Vin=Vin, min to Vin, max - 0.5%Vo,set - Tref=Ta, min to Ta, max 0A 19A - 2 1.6A s 16A 35A 2 2A s Ripple and Noise (pk-pk) - 25mV 50mV Ripple and Noise (RMS) - 8mV 15mV Turn on Time Overshoot at Turn on Output Capacitance - 4mS 0%Vo,set 8mS 3%Vo,set 0uF 0uF - 1000uF 5000uF Load Regulation Line Regulation Regulation Over Temperature (-40°C to +85°C) Output Current Current Limit Threshold Short Circuit Surge Transient ESR ≥ 1mohm ESR ≥ 10mohm Tested with 0-20MHz, 10uF/16V tantalum capacitor & 1uF/10V TDK ceramic capacitor at output 1 Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time 2 Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time VO=0.75V 3.3V - 300mV 50uS 300mV 50uS - di/dt=2.5A/uS; Vin=5V; and with 10uF/16V tantalum capacitor & 1uF/10V ceramic capacitor at output VO=0.75V 3.3V - 150mV 100uS 150mV 100uS - di/dt=2.5A/uS; Vin=5V; and with two 150uF/10V tantalum capacitors & 1uF/10V ceramic capacitor at output Note: All specifications are typical at nominal input (Vin=5V), full load 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 2.4V-5.5V Input 0.75V-3.63V/16A Output General Specifications Parameter Min Typ Max 91% 86% 75% 250KHz 0.7525V - 94% 89% 78% 300KHz 125°C - 350KHz 3.63V 5% Notes Efficiency Vo=3.3V Vo=1.8V Vo=0.75V Switching Frequency Over Temperature Shutdown Output Trim Range (Wide Trim) Remote Sense Compensation MTBF Measured at Vin=5V, full load Calculated Per Bell Core TR-332 (IO = Nominal; Ta = 25°C) 5,109,613 hours Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight 2.0 x 0.5 x 0.363 50.80 x 12.7 x 9.23 8.3g - - Note: All specifications are typical at 25°C unless otherwise stated. Control Specifications Parameter Signal Low (Unit Off) Signal High (Unit On) Signal Low (Unit On) Signal High (Unit Off) Min -0.3V 1.5V -0.3V 1.5V Typ - Max 0.3V 5.8V 0.3V 5.8V Sequencing Voltage 0.05V - Vin - - 2V/mS 10mS - - - 100mV 200mV 200mV 400mV Sequencing Slew Rate Capability Sequencing Delay Time Notes V7BC-16F2A0; Remote On/Off pin open, Unit on. V7BC-16F2AL; Remote On/Off pin open, Unit on. Sequencing Voltage should be higher than output voltage. Delay from Vin, min to application of voltage on SEQ pin Tracking Accuracy Power-Up Power-Down Output Trim Equations Equation for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) is shown below. The Trim Up resistor should be connected between the Trim pin and Ground. Vout Rtrim 21.07 = − 5.11 Vadj − 0.7525 Module Trim Rtrim GND Equation for calculating the trim voltage (in V) given the desired adjusted voltage (Vadj) is shown below. The Trim Up voltage should be connected between the Trim pin and Ground. Vtrim = 0.7 − 0.1698 × (Vadj − 0.7525) Vout Module Trim Vtrim GND 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 2.4V-5.5V Input 0.75V-3.63V/16A Output Efficiency Data 98.0% 96.0% 94.0% 92.0% 90.0% 88.0% 86.0% 4.5V 84.0% 5.0V 82.0% 5.5V 80.0% 1.6 4.0 8.0 12.0 16.0 Vo=3.3V 100.0% 95.0% 90.0% 85.0% 80.0% 3.0V 5.0V 75.0% 5.5V 70.0% 1.6 4.0 8.0 12.0 16.0 Vo=1.8V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 2.4V 65.0% 5.0V 5.5V 60.0% 1.6 4.0 8.0 12.0 16.0 Vo=0.75V 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 2.4V-5.5V Input 0.75V-3.63V/16A Output Thermal Derating Curves V7BC-16F2A0, Vo=3.3V V7BC-16F2A0, Vo=1.8V V7BC-16F2A0, Vo=0.7525V 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 2.4V-5.5V Input 0.75V-3.63V/16A Output Pin Connections Pin Function 1 Vout 2 Vout 3 Vo,sense 4 Vout 5 Ground 6 Ground 7 Vin 8 Vin 9 SEQ 10 Trim 11 Remote On/Off ©2005 Bel Fuse Inc. Specifications subject to change without notice. 033005 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