SI9161BQ-T1 Vishay, SI9161BQ-T1 Datasheet - Page 12

• Manufacturer Part Number: SI9161BQ-T1
• Description: IC, VOLTAGE MODE PWM CTRL, 6V, TSSOP-16
• Manufacturer: Vishay

Specifications of SI9161BQ-T1

• Input Voltage: 6V
• Output Voltage: 5.2V
• Output Current: 10mA
• Frequency: 2MHz
• Power Dissipation Pd: 925mW
• Supply Voltage Range: 2.7V To 6V
• Digital Ic Case Style: TSSOP
• No. Of Pins: 16
• Mounting Style: SMD/SMT
• Package / Case: TSSOP-16
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Si9161
Vishay Siliconix
Conclusion
Switching at high, known frequencies results in a smaller
footprint while maintaining high efficiency. Efficiencies at high
switching frequencies can be improved by using Si6801
optimized low gate charge and low gate resistance MOSFET.
Even though the high frequency MOSFET has been designed
with minimum gate charge, it still presents significant power
loss during the light load conditions. In order to minimize this
switching loss, Si9161 is designed with a light load efficiency
S-60752—Rev. B, 05-Apr-99
12
FIGURE 9. Higher resolution of noise spectrum
improvement pin which decreases the switching frequency by
8.5 times (@ 1 MHz) and disables the synchronous
rectification. This feature improves the light load efficiency in
certain conditions as much as 50% compare to Si9160.
Additionally, under transmitting mode, Si9161 clock frequency
can be synchronized
eliminates or greatly reduces any radio interference concerns
and pushes harmonics out beyond signal processing
frequencies.
to higher external frequency which
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