SLVAFL4 august   2023 TPS61299

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction of Smart Watch Fast Transient Performance Requirements
  5. 2TPS61299 Fast Transient Performance Introduction
    1. 2.1 Fast Transient Mode Setting
  6. 3Standby Time Calculation
  7. 4Test Report Based on TPS61299 Solution
    1. 4.1 Load Transient Test for TPS61299 and TPS61099
    2. 4.2 Efficiency and Load Regulation
    3. 4.3 Output Ripple Test for TPS61299 and TPS61099
  8. 5Conclusion
  9. 6References

Output Ripple Test for TPS61299 and TPS61099

Figure 4-5 through Figure 4-7 show that the output voltage ripple of TPS61099 when Iout is 0 mA, 25mA and 200mA, VIN is 3.6 V and VOUT is 5 V. Figure 4-8 through Figure 4-10 show that the output voltage ripple of TPS61299 when Iout is 0 mA, 25mA ,and 200mA, VIN is 3.6 V and VOUT is 5 V. No matter under any conditions, TPS61299 has smaller output voltage ripple than TPS61099.

GUID-20230703-SS0I-SGM4-RLPL-3WD5MV3HZXN4-low.svgFigure 4-5 TPS61099 Vin 3.6 V, Vout 5 V, Iout 0A
GUID-20230703-SS0I-SVKZ-LR8N-ZJFMXPMNTPJG-low.svgFigure 4-7 TPS61099 Vin 3.6 V ,Vout 5 V, Iout 300 mA
GUID-20230703-SS0I-JBRL-DTVM-9KCFXMKTG9H2-low.svgFigure 4-9 TPS61299 Vin 3.6 V, Vout 5 V, Iout 25 mA
GUID-20230703-SS0I-WCJN-LFMQ-4QDSWWLLKSBF-low.svgFigure 4-6 TPS61099 Vin 3.6 V, Vout 5 V, Iout 25 mA
GUID-20230703-SS0I-T97W-NFGS-MPBZ1MVC03WG-low.svgFigure 4-8 TPS61299 Vin 3.6 V ,Vout 5 V, Iout 0 A
GUID-20230703-SS0I-QFFK-NJ2L-MPZB8NLH3RQ9-low.svgFigure 4-10 TPS61299 Vin 3.6 V, Vout 5 V, Iout 300 mA

Table 4-1 summarizes that the output voltage ripple of TPS61299 and similar product. No matter under any conditions, TPS61299 has smaller output voltage ripple than market similar product.

Table 4-1 Comparison of Output Voltage Ripple Between TPS61299 and TPS61099
Output voltage ripple 0mA 25mA 200mA
TPS61299 28 mV 7 mV 6 mV
TPS61099 52 mV 100 mV 8 mV