NON-ISOLATED DC/DC CONVERTERS 4.5 V - 5.5 V Input 0.9 V - 2.75 V/30 A Output SRDB-30B1AH RoHS Compliant • Non-Isolated • Remote Sense • Under-Voltage lockout (UVLO) • OCP/SCP • Wide Output • Low profile package • Over voltage protection • Remote On/Off (Active High) Description The Bel SRDB-30B1AH is part of the non-isolated dc/dc converter Power Module series. The modules use a DIP package for ease of layout and space savings. The output can be trimmed from 0.9 V to 2.75 V and the efficiency of 2.5 V output module is typically 93% at full load. Typical features include remote on/off, over current protection and short circuit protection. Part Selection Output Voltage Input Voltage Max. Output Current Max. Output Power Typical Efficiency Model Number Active High 0.9 V - 2.75 V 4.5 V - 5.5 V 30 A 82.5 W 93% SRDB-30B1AH Note: Add “R” suffix at the end of the model number to indicate “Reel Packaging”, and “G” for “Tray Packaging”. Absolute Maximum Ratings Parameter Input Voltage (continuous) Min -0.3 V Typ - Max 7V Output Enable Terminal Voltage -0.5 V - 7V Ambient Temperature -40 °C - 85 °C Storage Temperature -40 °C - 125 °C Notes Input Specifications Parameter Input Voltage Input Current (full load) Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=1.0 V Min Typ Max 4.5 V - 5.5 V - - 20.4 A 15.0 A 12.9 A 10.6 A 9.05 A - 220 mA 200 mA 180 mA 160 mA 140 mA - Notes Input Current (no load) Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=1.0 V 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 4.5 V - 5.5 V Input 0.9 V - 2.75 V/30 A Output Input Specifications (continued) Parameter Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (rms) Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=1.0 V Min Typ Max - 120 mA 160 mA - 12 mA 25 mA 29 mA 32 mA 36 mA - 0.1 A s 0.2 A s Turn-on Voltage Threshold 4.3 V 4.4 V 4.5 V Turn-off Voltage Threshold 3.4 V 3.7 V 4.3 V 2 I t Inrush Current Transient 2 25 mA 50 mA 58 mA 64 mA 72 mA Notes With simulated source impedance of 500 nH, 5 Hz to 20 MHz. Use two 270 uF/16 V capacitors with ESR=0.018 ohm max. at 100 kHz. 2 Note: All specifications are typical at 25 °C unless otherwise stated. Output Specifications Parameter Min Typ Max Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=1.0 V 2.450 V 1.764 V 1.470 V 1.176 V 0.980 V 2.5 V 1.8 V 1.5 V 1.2 V 1.0 V 2.550 V 1.836 V 1.530 V 1.224 V 1.020 V Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=1.0 V - ±2 mV ±2 mV ±1 mV ±1 mV ±1 mV ±5 mV ±4 mV ±3 mV ±2 mV ±2 mV Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=1.0 V - ±5 mV ±4 mV ±4 mV ±3 mV ±3 mV ±10 mV ±8 mV ±7 mV ±6 mV ±5 mV Regulation Over Temperature Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=1.0 V - ±15 mV ±12 mV ±8 mV ±6 mV ±6 mV ±30 mV ±24 mV ±16 mV ±12 mV ±12 mV Output Current 0A - 30 A Current Limit Threshold 36 A - 55 A Notes Output Voltage Set Point Vin=5 V, lout=half load. Line Regulation Load Regulation Input Voltage Range:4.75 V-5.5 V 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 4.5 V - 5.5 V Input 0.9 V - 2.75 V/30 A Output Output Specifications (continued) Parameter Min Typ Max Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=1.0 V - 3 mV 5 mV 7 mV 7 mV 7 mV 6 mV 10 mV 14 mV 14 mV 14 mV Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=1.0 V - 15 mV 20 mV 25 mV 25 mV 25 mV 30 mV 40 mV 50 mV 50 mV 50 mV Short Circuit Surge Transient - 0.1 A s 2 0.2 A s Turn on Time - 6 mS 10 mS - 0% Notes Transient Response Ripple and Noise (rms) Ripple and Noise (pk-pk) Overshoot at Turn on Output Capacitance 680 uF Test conditions: two 270 uF/16 V capacitors with ESR=0.018 ohm max at the input; Vin=5 V, lo=30 A, 0-20 MHz BW. 2 3% 12000 uF Transient Response 50% ~ 100% Max Load 100% ~ 50% Max Load 50% ~ 100% Max Load 100% ~ 50% Max Load 50% ~ 100% Max Load 100% ~ 50% Max Load Overshoot - 100 mV Settling Time - 60 uS 100 uS - 100 mV 150 mV Overshoot Settling Time - 60 uS 100 uS Overshoot - 100 mV 150 mV Settling Time Overshoot VO=1.8 V - 50 uS 100 uS - 100 mV 150 mV Settling Time - 50 uS 100 uS Overshoot - 90 mV 140 mV Settling Time Overshoot VO=1.5 V - 50 uS 100 uS - 90 mV 140 mV Settling Time - 50 uS 100 uS Overshoot - 90 mV 140 mV - 50 uS 100 uS - 90 mV 140 mV 50 uS 100 uS Overshoot - 80 mV 130 mV Settling Time - 50 uS 100 uS - 80 mV 130 mV - 50 uS 100 uS 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time 50% ~ 100% Max Load 100% ~ 50% Max Load VO=2.5 V 150 mV Overshoot Overshoot Settling Time VO=1.2 V VO=1.0 V Test conditions: di/dt=0.5 A/uS, Vin= 5 V, Ta=25 °C with external 680 uF tantalum capacitance. Note: All specifications are typical at full load, 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 4.5 V - 5.5 V Input 0.9 V - 2.75 V/30 A Output General Specifications Parameter Min Typ Max Notes Switching Frequency 90% 88% 86% 85% 82% 480 kHz 93% 91% 89% 88% 85% 600 kHz 720 kHz Over Voltage Protection (Latch) 108.5% 115% 120% 0.9 V - 2.75 V - - 10% Efficiency Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=1.0 V Output Voltage Trim Range Remote Sense Compensation 1 MTBF Vin=5 V, full load. Vo=1.2 V when trim pin is open. Calculated Per Bell Core SR-332 (Vin=5 V; IO = 24 A, Vo=1.2 V; Ta = 25 °C) 3,078,055 hours Dimensions Inches millimeters Weight 1.22 x 0.67 x 0.345 31.0 x 17.0 x 8.75 - 11 g Body outline - Notes: All specifications are typical at 25 °C unless otherwise stated. 1. The OVP latch can be reset by cycling the input supply voltage or remote on/off. Control Specifications Parameter Min Typ Max -0.3 V - 1.35 V 3.15 V - 5.5 V -0.3 V - 1.65 V 3.85 V - 5.5 V Notes Remote On/Off Signal Low (Unit Off) Signal High (Unit On) Signal Low (Unit Off) Signal High (Unit On) Vin=4.5 V Vin=5.5 V Remote on/off pin open, unit on. Output Trim Equations Equations for calculating the trim resistor (in kΩ) given the desired adjusted voltage (Vadj) are shown below. The Trim Down resistor should be connected between the Trim pin and Vout. The Trim Up resistor should be connected between the Trim pin and Ground. Only one of the resistors should be used for any given application. RTrimDown = 0.774 − 2.075 Vo − Vadj RTrimUp = 1.533 − 0.158 Vadj − Vo Vout Vout Module Trim GND Rtrimdown Module Trim GND Rtrimup Note: Vo is the nominal output voltage set point when trim pin is open, Vo=1.204 V. 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 4.5 V - 5.5 V Input 0.9 V - 2.75 V/30 A Output Efficiency Data Module 2.5V Module 1.8V 96.0% 94.0% 94.0% 92.0% 90.0% 88.0% EFFICIENCY 4.5V 5.0V 5.5V 90.0% 86.0% 88.0% 4.5V 86.0% 5.0V 84.0% 5.5V 82.0% 84.0% 80.0% 82.0% 78.0% 76.0% 80.0% 74.0% 78.0% 2 4 6 8 10 12 14 16 18 20 22 24 26 28 2 30 4 6 8 10 12 14 16 18 20 22 24 26 28 30 OUTPUT CURRENT OUTPUT CURRENT Vo=2.5 V Vo=1.8 V Module 1.2V Module 1.5V 92.0% 92.0% 90.0% 90.0% 88.0% 88.0% 4.5V 84.0% 5.0V 86.0% EFFICIENCY 86.0% 5.5V 82.0% 80.0% 4.5V 84.0% 5.0V 82.0% 5.5V 80.0% 78.0% 78.0% 76.0% 76.0% 74.0% 74.0% 72.0% 70.0% 72.0% 2 4 6 8 10 12 14 16 18 20 22 24 26 28 2 30 4 6 8 10 12 14 16 18 20 22 24 26 28 OUTPUT CURRENT OUTPUT CURRENT Vo=1.5 V Vo=1.2 V Module 1.0V 90.0% 88.0% 86.0% EFFICIENCY EFFICIENCY EFFICIENCY 92.0% 84.0% 4.5V 5.0V 5.5V 82.0% 80.0% 78.0% 76.0% 74.0% 72.0% 70.0% 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 OUTPUT CURRENT Vo=1.0 V Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com 30 NON-ISOLATED DC/DC CONVERTERS 4.5 V - 5.5 V Input 0.9 V - 2.75 V/30 A Output Thermal Derating Curve Note: Derating curve is for 2.5 V output and tested at nominal input voltage. Ripple and Noise Waveforms Vo=2.5 V Vo=1.8 V 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 4.5 V - 5.5 V Input 0.9 V - 2.75 V/30 A Output Ripple and Noise Waveforms (continued) Vo=1.5 V Vo=1.2 V Vo=1.0 V Note: Ripple and Noise at full load, Vin=5 V, Io=30 A, Ta=25℃ with external 680 uF tantalum capacitor. 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 4.5 V - 5.5 V Input 0.9 V - 2.75 V/30 A Output Transient Response Waveforms Transients 50% to 100% load 2.5 V Output Transients 100% to 50% load 2.5 V Output Transients 50% to 100% load 1.8 V Output Transients 100% to 50% load 1.8 V Output Transients 50% to 100% load 1.5 V Output Transients 100% to 50% load 1.5 V Output 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 4.5 V - 5.5 V Input 0.9 V - 2.75 V/30 A Output Transient Response Waveforms (continued) Transients 50% to 100% load 1.2 V Output Transients 100% to 50% load 1.2 V Output Transients 50% to 100% load 1.0 V Output Transients 100% to 50% load 1.0 V Output Note: Vin=5 V, Ta=25℃, with external 680 uF tantalum capacitor. 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 4.5 V - 5.5 V Input 0.9 V - 2.75 V/30 A Output Mechanical Outline Pin Connections Pin 1 2 3 4 5 6 7 8 9 10 11 12 Function +Vo +Vo Ground Ground Ground +Vin +Vin Ground Ground Remote On/Off Trim Remote Sense (+) Note: Though there are 5 GND pins (3,4,5,8,9), it is highly recommended that all of them should be used in the system application, because of the current and the thermal conduction. 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. ©2006 Bel Fuse Inc. Specifications subject to change without notice. 041206 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