sp6659es Exar Corporation, sp6659es Datasheet
sp6659es
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sp6659es Summary of contents
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Synchronous Buck Regulator FEATURES ■ 94% Efficiency Possible ■ 600mA Output Current at V ■ 2.5V to 5.5V Input Voltage Range ■ 1.5MHz constant frequency operation ■ No Schottky Diode Required ■ Output Voltages as low as 0.6V ...
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These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods ...
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Refer to the typical application schematic, V 20μS/div Figure 1: Load Transient 0mA to 600mA CH 1: Output Voltage, 200mV per division AC-Coupled CH 3: Inductor Current, 500mA/ div CH 4: Load Current, 500mA/ div 20μS/div Figure 3: Load Transient ...
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Refer to the typical application schematic, V 1.8Vout Efficiency Vs Output 100 Output Current (mA) Figure 7: Efficiency Vs. Load Current, Vout =1.8V 1.8Vout Efficiency vs Input voltage 100 ...
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Refer to the typical application schematic, V 2.5Vout Efficiency Vs Output Current 100 Output Current (mA) Figure 13: Efficiency Vs. Load Current, Vout =2.5V 1.5Vout Efficiency Vs Output Current 100 90 80 ...
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SLOPE OSC COMP BLANKING OUT R 0.6V + COMP - EA RS LATCH DET 0.65V - RUN 0.6V REF 1 SHUTDOWN Fixed Output Version SLOPE OSC BLANKING ...
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SETTING THE OUTPUT VOLTAGE A resistive divider based on the following equation determines the output voltage 0.6 (1+ ) OUT R2 The external resistive divider is connected to the output as shown in Figure 20 . ...
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In the Idle Mode, the inductor current may reach zero Amps or reverse on each pulse. The PWM control loop will automatically skip pulses to maintain output regulation. The bottom MOSFET is turned off by the current reversal comparator, I ...
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DC series resis- tance in the 50mΩ to 150mΩ range. For higher efficiency at heavy loads (above 200mA), or minimal load regulation (but some transient overshoot), the resistance should be kept below 100mΩ. The DC cur- ...
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Pin1 Designator to be within this e INDEX AREA (D/2 x E1/2) TOP VIEW Gauge Plane L2 ø 5 Pin TSOT-23 SYMBOL ...
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Part Number Operating Temperature Range SP6659EK1 ......... ...............................-40°C to +85°C ........................................................... 5 Pin TSOT23 SP6659EK1/TR .... ...............................-40°C to +85°C ........................................................... 5 Pin TSOT23 SP6659EK1-1-5 .... ...............................-40°C to +85°C ........................................................... 5 Pin TSOT23 SP6659EK1-1-5/TR...............................-40°C to +85°C .......................................................... 5 Pin TSOT23 SP6659EK1-1-8 ...