[1] TIAN S, LEE F C, LI J, et al. A three-terminal switch model of constant on-time current mode with external ramp compensation ［J］. IEEE Trans Power Elec, 2016, 31(10): 7311-7319.

[2] YANG M Y, ZHEN S W, ZHOU S Z, et al. Effect of control delay on small signal model for buck converter with constant on time control ［C］ // IEEE APCCAS, Chengdu, China. 2018: 480-483.

[4] CHEN W C, CHEN H C, CHIEN M W, et al. Pseudo-constant switching frequency in on-time controlled buck converter with predicting correction techniques ［J］. IEEE Trans Power Elec, 2016, 31(5): 3650-3662.

[5] LEE S H, BANG J S, YOON K S, et al. A 0.518 mm2 quasi current mode hysteretic buck DC-DC converter with 3 μs load transient response in 0.35 μm BCDMOS ［C］ // IEEE ISSCC. San Francisco, CA, USA. 2015: 1-3.

[6] ZHENG Y Q, CHEN H, LEUNG K N. A fast-response pseudo-PWM buck converter with PLL-based hysteresis control ［J］. IEEE Trans Very Large Scale Integr (VLSI), 2012, 20(7): 1167-1174.

[7] ZHEN S W, ZENG P H, CHEN J W, et al. Transient response improvement of DC-DC converter by current mode variable on time control ［C］ // IEEE 61st Int MWSCAS. Windsor, ON, Canada. 2018: 603-606.