NON-ISOLATED DC/DC CONVERTERS 3.0V-5.5V Input -5V/1A & -12V/0.5A Output x7AH-01FxxN Series • Non-Isolated • Low Cost • Fixed Frequency • Excellent Thermal Performance • High Efficiency • OCP/SCP • High Power Density • Industrial Temperature Range Description The Bel x7AH-01FxxN modules are non-isolated, step down DC/DC converters that operate from a 3V-5.5V source. Output voltage are -5V,-12V. They are packaged in a compact, overmolded package rated at 1A, 0.5A. Optional lead forming provides a vertical mount product for minimal footprint or a surface mount option for a very low profile. The output is closely regulated and the efficiency is typically 88% at 1A, -5V output at full load. Part Selection Output Voltage -5V -12V Input Voltage 3.0V – 5.5V 3.0V – 5.5V Max. Output Current 1A 0.5A Max. Output Power 5W 6W Typical Efficiency 88% 88% Part Number Surface Mount S7AH-01F50N S7AH-01FX2N Part Number Vertical Mount V7AH-01F50N V7AH-01FX2N Note: Add “0” suffix at the end of the model number to indicate “Tube Packaging”, and “R” for “Reel Packaging”, and “G” for “Tray Packaging”. Absolute Maximum Ratings Parameter Input Voltage (continuous) Ambient Temperature Storage Temperature Min -0.3V -40°C -40°C Typ - Max 7V 85°C 125°C Notes Input Specifications Parameter Input Voltage Input Current (full load) Min 3V Typ - Max 5.5V VO=-5V VO=-12V - - 2.1A 2.5A VO=-5V VO=-12V - - 150mA 200mA Input Reflected Ripple Current (pk-pk) - 80mA 160mA Input Reflected Ripple Current (RMS) - 20mA 50mA I2t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold - 2.63V 0.01A2s - 0.4V 1.0V - 2.0V 2.3V Notes Input Current (no load) VO=-5V VO=-12V For -5V output, use a 680uF/6.3V Oscon capacitor; For -12V output, use 1000uF electrolytic capacitor & 22uF/10V ceramic at the input. Note: All specifications are typical 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 3.0V-5.5V Input -5V/1A & -12V/0.5A Output Output Specifications Parameter Min Typ Max VO=-5V VO=-12V -5.1V -12.24V -5V -12V -4.9V -11.76V VO=-5V VO=-12V -20mV -120mV - 20mV 120mV VO=-5V VO=-12V -60mV -120mV - 60mV 120mV VO=-5V VO=-12V -80mV -240mV - 80mV 240mV VO=-5V VO=-12V - 25mV 40mV 40mV 70mV VO=-5V VO=-12V - 90mV 120mV 120mV 240mV VO=-5V VO=-12V 0A 0A - 1A 0.5A Output DC Current Limit - 200% - Short Circuit Surge Transient - - 0.01A2s Turn on Time - 10mS 30mS Overshoot at Turn on Output Capacitance - 0% 3% 220uF 47uF - 470uF 150uF - 80mV - - 40uS - - 80mV - Settling Time - 40uS - Overshoot - 130mV - - 50uS - Overshoot - 130mV - Settling Time - 50uS - Output Voltage Set Point Notes Test conditions: Vin=5.0V, lout=half load; with 220uF/10V Tantalum Capacitor & 0.1uF ceramic Capacitor (Vo=-5V) or 47uF/25V tantalum capacitor & 0.1uF ceramic Capacitor (Vo=12V). Line Regulation Load Regulation Regulation Over Temperature (-40°C to +85 °C) Ripple and Noise (RMS) Ripple and Noise (pk-pk) Test conditions: BW = 0-20MHz; with 220uF/10V Tan Cap & 0.1uF ceramic capacitor (Vo=-5V) or 47uF/25V tantalum capacitor & 0.1uF ceramic Capacitor (Vo=-12V). Output Current Range VO=-5V VO=-12V Transient Response 50% ~ 100% Max Load 100% ~ 50% Max Load 50% ~ 100% Max Load 100% ~ 50% Max Load Overshoot Settling Time Overshoot Settling Time Vo=-5V VO=-12V Test Conditions: di/dt = 0.1A/uS; Vin = 5.0V; Ta = 25°C and with 220uF/10V Tantalum Cap & 0.1uF ceramic Capacitor (Vo=-5V) or 47uF/25V tantalum Cap & 0.1uF ceramic Capacitor (Vo=-12V). 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 3.0V-5.5V Input -5V/1A & -12V/0.5A Output General Specifications Parameter Min Typ Max Notes 84% 84% 250KHz 88% 88% 300KHz 350KHz Efficiency VO=-5V VO=-12V Switching Frequency MTBF Calculated Per Bell Core TR-332 (IO = 80%lo,max; Ta = 25°C) 4,883,163 hours Dimensions (surface mount) Inches (L × W × H) Millimeters (L × W × H) Dimensions (vertical) Inches (L × W × H) Millimeters (L × W × H) Weight Vin=5V; lo=lo, max 0.78 x 0.7 x 0.32 19.812 x 17.78 x 8.128 - 0.7 x 0.308 x 0.65 17.78 x 7.82 x 16.51 4.9g - Note: All specifications are typical at 25°C unless otherwise stated. Thermal Derating Curve x7AH-01F50N Efficiency Data MODULE -12V 95.0% 3.3V 5V 5.5V 85.0% 75.0% 65.0% 55.0% 0.10 0.25 0.50 0.75 OUTPUT CURRENT x7AH-01F50N 1.00 EFFICIENCY EFFICIENCY MODULE -5V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 0.050 3.3V 5V 5.5V 0.125 0.250 0.375 0.500 OUTPUT CURRENT x7AH-01FX2N 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 3.0V-5.5V Input -5V/1A & -12V/0.5A Output S7AH-01FxxN bel Pin Connections Pin Function 1 N/A 2 Vin 3 Ground 4 Vout 5 N/A 6 N/A 7 N/A V7AH-01FxxN Pin Connections bel bel Pin Function 1 N/A 2 Vin 3 Ground 4 Vout 5 N/A ©2005 Bel Fuse Inc. Specifications subject to change without notice. 011705 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