BSI-24 BELLNIX | Alldatasheet
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High Efficiency, Ultra Small Size, Non-Isolated Type POL DC-DC Converter 3A BSI-24 Series Ultra High Efficiency (87%, 91%), Minimum Size Step-Down DC-DC Converter Input: +8V, +12V, +15V, +24V Output: +3.3V (+1.2V to +5.1V) - Efficiency 87%-91% Models Input V Output V Output I Line Reg Load Reg Ripple/Noise Efficiency - Input Voltage Range +8V to +27V BSI Series Vdc Vdc A %(typ.) %(typ.) mVpp(typ.) %(typ.) - Output Voltage Range +1.2V to +5.1V - Latest Technology,Synchronous 3.3 40 87 Rectification Circuit (1.2-5.1) (50) (91) - Adjustable Output Voltage - Non-Isolated Type Converter Note 1: The output voltage inside the ( ) indicates the adjustable range. - Short Circuit, Over-Current Note 2: The values inside ( ) for Ripple noise and efficiency are when the output voltage is 5V. Protection Note 3: External capacitors are required. - No Electrolytic Capacitor used No Tantalum Capacitor used <Outline> - Heat Sink Not required (SIP Type) (DIP Type) - Minimum Size BSI24-3.3/5S3R0 BSI24-3.3/5S3R0F - Remote ON/OFF Control - MTBF 1,000,000Hrs - High Reliability, High Performance - Operating Temp Range -10°C to +70°C (Temp Derating Required) - RoHS Compliance - Note! This catalogue is an outline of the products. When designing, be sure to refer to the Weight: 10g typ. Weight: 11g typ. data sheets. Units: mm Units: mm <Standard Connection Diagram> - External Capacitors C1 should be 330µF or higher and an impedance of 81mΩ （20°C/ 100kHz) or below. Recommend: Electrolytic Capacitor C2=150µF（ESR＝28mΩ or below) ×2 or more Recommend: OS-CON To set the output voltage for 3.1V or lower, use 3 OS capacitors (different from the one written above). - ON/OFF Control ON/OFF is controlled by opening and shortening between the 5pin(ON/OFF) and 3, 4pin (-Vin). Be sure to maintain a slew rate of 0.03V/ µs or more for 5 pin while the voltage is around 1V during start up and shut down. - Adjustable Output Voltage The output voltage is adjustable by connecting a resistor between 14pin (V.ADJ) and 17, 18pin (+Vout). When 14pin is open, the rated output voltage is as follows Output = +3.3V±5% DC-DC CONVERTERS BDD2008.12A BSI24-3.3/5S3R0 BSI24-3.3/5S3R0F 8-27 3 0-3 0.3 1+ V i n +Vout -Vout -Vout V.ADJ ON/OFF -Vin -Vin +Vin +Vout Functionpin NC NC 1+ V i n +Vout -Vout -Vout V.ADJ ON/OFF -Vin -Vin +Vin +Vout Functionpin +Vin -Vin +Vout V.ADJ PWM.OCP.CONT ON/OFF CONT 16 1 18 -Vout C1 Load Short=Output OFF ON/OFF Open=Output ON (0 to 0.5V) Open = 3.3V FET1 FET2 Between V.ADJ, +Vout 20kΩ＝5V P2.54×4=10.16 50 (+1,-0.5) P2.54×4=10.16 22.86 C/L 0.64 2.25 20.5 (+1,-0.5) 10.7 max 2.8 1811 4 5 2.54×4 C/L 2.54×422.86 11 8 145 15.24 20.5(+1,-0.5) 36 19 Stand off 10.7 max 3.5max 20.5(+1,-0.5) 0.64 Stand off (+1,-0.5) RoHS Compliance