SI9160BQ-T1 Vishay, SI9160BQ-T1 Datasheet - Page 11

• Manufacturer Part Number: SI9160BQ-T1
• Description: IC, VOLTAGE MODE PWM CTRL, 6V, TSSOP-16
• Manufacturer: Vishay

Specifications of SI9160BQ-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

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
Document Number: 70029
S-40700—Rev. H, 19-Apr-04
FIGURE 6. Efficiency of Si9160 and Si6801 Boost converter
100
90
80
70
60
50
40
30
0.0
at various fixed frequencies
Noise Floor
Noise Floor
f = 600 kHz
<1 mV
50 mV
50 mV
<1 mV
5 mV
5 mV
0.2
f = 1.8 MHz
f = 1.4 MHz
f = 1 MHz
Output Current (A)
0.4
1 kHz
FIGURE 8. Spectrum response for the Si9160 demo board output voltage
1 MHz
0.6
V
V
IN
OUT
FIGURE 9. Higher resolution of noise spectrum
= 3.6
Switching Frequency = 1 MHz
= 5 V
0.8
10 kHz
1.0
2 MHz
100 kHz
3 MHz
optimized low gate charge and low gate resistance MOSFET.
Additionally, synchronization to an external high frequency
clock eliminates or greatly reduces any radio interference
concerns and pushes harmonics out beyond signal
processing frequencies.
CH1
CH2
1 MHz
FIGURE 7. Output noise of the Si9160 demo board
CH1: Output Ripple (50 mV/DIV)
CH2: P- and N-Channel Drain Voltage (2 V/DIV)
5 MHz
Switching Frequency = 1 MHz
10 MHz
500 ns/DIV
Vishay Siliconix
100 MHz
10 MHz
www.vishay.com
Si9160
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