NON-ISOLATED DC/DC CONVERTERS 2.4 V-5.5 V Input 0.75 V-3.63 V/6 A Output V7BA-06F2Ax Series • Non-Isolated • Under-voltage Lockout (UVLO) • High Efficiency • Wide Trim • High Power Density • OCP/SCP • Fixed Frequency (300 kHz) • Remote On/Off • Over Temperature Protection • Active Low/High (option) • Flexible Output Voltage Sequencing • Able to Sink & Source Current Description The Bel V7BA-06F2Ax modules are a series of non-isolated dc/dc converters that deliver up to 6A of output current with full load efficiency of 93% at 3.3 V output. These modules provide precisely regulated voltage programmable via external resistor from 0.75 V to 3.63 V over a wide range of input voltage (2.4 V-5.5 V). These modules have a sequencing feature that enables designers to implement various types of output voltage sequencing when powering multiple voltages on a board. The open-frame construction and small footprint enable designers to develop cost and space-efficient solutions. Standard features include remote On/Off, over current protection, short current protection, wide input, and programmable output voltage. 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 -3.63 V 2.4 V – 5.5 V 6A 21.8 W 93% V7BA-06F2AL V7BA-06F2A0 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) -0.3 V - 5.8 V Output Enable Terminal Voltage -0.3 V - 5.5 V 1 -0.3 V - 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. V7BA-06F2Ax 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 not used sequencing feature, 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 2.4 V-5.5 V Input 0.75 V-3.63 V/6 A Output Input Specifications Parameter Min Typ Max Notes Vo≤1.5 V 1.8 V 2.5 V-3.3 V 2.4 V 3V 4.5 V - 5.5 V 5.5 V 5.5 V Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.5V Vo=1.2V Vo=0.75V - - 4.73 A 3.66 A 4.09 A 4.31 A 3.57 A 2.40 A Vo=3.3 V Vo=0.75 V Remote Off Input Current - 50 mA 25 mA 0.6 mA - Input Reflected Ripple Current (pk-pk) - 120 mA - Input Reflected Ripple Current (rms) - 35 mA - 1.8 V 2.05 V 2.0 V 0.04 A s 2.4 V - Input Voltage Input Current (full load) Input Current (no load) 2 I t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold Tested with simulated source impedance of 1 uH, 5 Hz to 20 MHz, one 1000 uF/25 V AL capacitor and two 100 uF/ 10 V Tantalum capacitor at the input. 2 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 0.7525 V - 3.63 V - 0.4% Vo,set 0.3% Vo,set - Io=Io, min to 50%Io, max Vin=50% Vin, min to Vin, max - 0.4% Vo,set - Tref=Ta, min to Ta, max 0A 9A - 2 0.32 A s 6A 18 A - Ripple and Noise (pk-pk) - 40 mV 70 mV Ripple and Noise (rms) - 10 mV 30 mV 6 mS - 10 mS 3% - 1000 uF 3000 uF Adjustment Range Selected by External Resistor or Voltage Load Regulation Line Regulation Regulation Over Temperature (-40 °C to +85 °C) Output Current Current Limit Threshold Short Circuit Surge Transient Turn on Time Overshoot at Turn on Output Capacitance ESR ≥ 1mohm 0 uF 0 uF ESR ≥ 10mohm Transient Response 50% ~ 100% Max Load Settling Time VO = 0.75 V 3.63 V 100% ~ 50% Max Load Settling Time - 130 mV 25 uS 130 mV 25 uS Notes Vin=5 V, 50% full load Over all operating input voltages, resistive loads and temperature conditions Tested with 0-20 MHz, with 10 uF Tantalum capacitor & 1 uF/10 V ceramic capacitor at the output. - di/dt=2.5 A/uS; Vin=5 V; and with 10 uF Tantalum capacitor & 1 uF/10 V TDK ceramic capacitor at the output Note: All specifications are typical at nominal input, 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 2.4 V-5.5 V Input 0.75 V-3.63 V/6 A Output General Specifications Parameter Min Typ Max Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.7525 V Switching Frequency Over Temperature Shutdown Output Voltage Trim Range 250 kHz 0.7525 V 93% 91% 88% 87% 84% 78% 300 kHz 135 °C - 350 kHz 3.63 V Notes Efficiency MTBF Measured at Vin=5 V, full load Calculated Per Bell Core TR-332 (Vin=5 V; Vo=0.75 V; IO = 4.8 A; Ta = 25°C) 7,142,646 hours Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight - 1.0 x 0.5 x 0.243 25.4 x 12.7 x 6.16 5g - Note: All specifications are typical at 25 °C unless otherwise stated. Control Specifications Parameter Remote On/Off Signal Low (Unit Off) Signal High (Unit On) Signal Low (Unit On) Signal High (Unit Off) Sequencing Voltage Sequencing Slew Rate Capability Sequencing Delay Time Min Typ Max -0.2 V -0.2 V 1.5 V - 0.3 V Vin, max 0.3 V Vin, max 0V - Vin - - 2 V/mS 10 mS - - - 100 mV 200 mV 200 mV 400 mV Notes V7BA-06F2A0; Remote On/Off pin open, Unit on. V7BA-06F2AL; Remote On/Off pin open, Unit on. Sequencing Voltage applied on SEQ pin 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. Vout Vtrim = 0.7 − 0.1698 × (Vadj − 0.7525) 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 2.4 V-5.5 V Input 0.75 V-3.63 V/6 A Output Efficiency Data 2.5 V Module 100.0% 100.0% 95.0% 95.0% 90.0% 90.0% 85.0% 4.5 V 5V 5.5 V 80.0% 75.0% Efficiency Efficiency 3.3 V Module 70.0% 65.0% 1.5 A 3.0 A 4.5 A 60.0% 0.6 A 6.0 A 1.8 V Module 1.5 V Module 100.0% 95.0% 95.0% 90.0% 90.0% 85.0% 3V 5V 5.5 V 80.0% 75.0% 65.0% 60.0% 0.6 A 6.0 A 1.5 A 3.0 A 4.5 A Output Current Output Current 1.2 V Module 0.7525 V Module 100.0% 100.0% 95.0% 95.0% 6.0 A 90.0% 85.0% 2.4 V 5V 5.5 V 80.0% 75.0% Efficiency 90.0% 85.0% 75.0% 70.0% 65.0% 65.0% 60.0% 1.5 A 3.0 A Output Current 4.5 A 6.0 A 2.4 V 5V 5.5 V 80.0% 70.0% 0.6 A 2.4 V 5V 5.5 V 75.0% 70.0% 4.5 A 6.0 A 80.0% 65.0% 3.0 A 4.5 A 85.0% 70.0% 1.5 A 3.0 A Output Current 100.0% 60.0% 0.6 A 1.5 A Output Current Efficiency Efficiency 75.0% 65.0% 0.6 A 4.5 V 5V 5.5 V 80.0% 70.0% 60.0% Efficiency 85.0% 60.0% 0.6 A 1.5 A 3.0 A 4.5 A 6.0 A Output Current 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 2.4 V-5.5 V Input 0.75 V-3.63 V/6 A Output Pin Connections Pin Function 1 Vout 2 Trim 3 Ground 4 SEQ 5 Vin 6 Remote On/Off 2005 Bel Fuse Inc. Specifications subject to change without notice. 040805 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