Journal of IKEEE (전기전자학회논문지)

Institute of Korean Electrical and Electronics Engineers (한국전기전자학회)
권호 표지
DOI QR코드

DOI QR Code

Small area LDO Regulator with pass transistor using body-driven technique

패스 트랜지스터에 바디 구동 기술을 적용한 저면적 LDO 레귤레이터

  • Park, Jun-Soo (Dept. of Electronics and Electrical Engineering, Dankook Univ.) ;
  • Yoo, Dae-Yeol (Dept. of Electronics and Electrical Engineering, Dankook Univ.) ;
  • Song, Bo-Bae (Dept. of Electronics and Electrical Engineering, Dankook Univ.) ;
  • Jung, Jun-Mo (Dept. of Electronics Engineering, Seokyeong University) ;
  • Koo, Yong-Seo (Dept. of Electronics and Electrical Engineering, Dankook Univ.)
  • Received : 2013.06.19
  • Accepted : 2013.06.27
  • Published : 2013.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

Small area LDO (Low drop-out) regulator with pass transistor using body-driven technique is presented in this paper. The body-driven technique can decrease threshold voltage (Vth) and increase the current ID flowing from drain to source in current. The technique is applied to the pass transistor to reduce size of area and maintain the same performance as conventional LDO regulator. A pass transistor using the technique can reduce its size by 5.5 %. The proposed LDO regulator works under the input voltage of 2.7 V ~ 4.5 V and provides up to 150mA load current for an output voltage range of 1.2 V ~ 3.3 V.

본 논문에서는 패스 트랜지스터에 바디 구동 기술을 적용하여 면적을 감소시킨 LDO (Low drop-out) 레귤레이터를 제안하였다. 바디 구동 기술은 트랜지스터의 문턱전압 (Vth)을 감소시켜 드레인 전류를 증가시켜 전류 구동 능력을 향상시킨다. 본 논문에서는 LDO 레귤레이터의 패스 트랜지스터에 바디 구동 기술을 적용하여 면적을 감소시키고, 기존 LDO 레귤레이터와 동일한 성능을 유지하였다. 본 논문에서 제안하는 패스 트랜지스터는 동일한 성능 대비 면적은 5.5 % 감소 하였다. 본 논문에서 제안하는 LDO 레귤레이터는 2.7 V ~ 4.5 V의 입력 전압, 1.2 V ~ 3.3 V의 출력전압 범위를 가지며, 150 mA의 출력 전류를 공급한다.

Keywords

References

  1. Al-Shyoukh, M.; Hoi Lee; Perez, R, "A Transient-Enhanced Low-Quiescent Current Low-Dropout Regulator With Buffer Impedance Attenuation," Solid-State Circuits, IEEE Journal of, vol. 42, pp. 1732-1742, Aug. 2007. https://doi.org/10.1109/JSSC.2007.900281
  2. Jungeui Park ; Wooju Jeong ; Junsang Lee ; Seok Lee ; Jayang Yoon ; Jaehoon Kim ; Joongho Choi, "Design of LDO linear regulator with ultra low-output impedance buffer," SoC Design Conference (ISOCC), 2009 International, pp. 420-423, Nov. 2009.
  3. Yongsheng Wang; Mingyan Yu; Xiaoxiong Feng; Fengchang Lai, "Frequency compensation scheme for LDO regulator operated under wide power supply range in smart battery system," Electron Devices and Solid-State Circuits (EDSSC), 2011 International Conference of, pp. 1-2, Nov. 2011.
  4. Yong-Seo Koo; Kang-Yoon-Lee; Jae-Hwan Ha; Yil-Suk Yang. "A Design of Power Management IC for CCD Image Sensor" IKEEE, vol 13, no.4, pp. 63-68, 2009
  5. Seong-Mok Yu; Joon-Ho Park; Jong-Tae Park; Chong-Gun Yu, "Design of Tripple-Mode DC-DC Buck Converter" IKEEE, vol 15, no.2, pp. 134-142, 2011
  6. Xuguang Zhang; El-Masry, E.I., "A regulated body-driven CMOS current mirror for low-voltage applications," Circuits and Systems II: Express Briefs, IEEE Transactions on, vol. 51, pp. 571-577, Oct. 2004. https://doi.org/10.1109/TCSII.2004.834536
  7. Rui He; Lihong Zhang, "Evaluation of modern MOSFET models for bulk-driven applications," Circuits and Systems, 2008. MWSCAS 2008. 51st Midwest Symposium on, pp. 105-108, Aug. 2008.
  8. Khateb, F.; Biolek, D.; Khatib, N.; Vavra, J., "Utilizing the Bulk-driven technique in analog circuit design," Design and Diagnostics of Electronic Circuits and Systems (DDECS), 2010 IEEE 13th International Symposium on, pp. 16-19, Apr. 2010.