In this paper, a Constant-Output-Current, constant-Toff, buck-mode switching converter is presented. The device uses a Peak Current Mode Control (PCMC) with an integrated High-Side (HS) current sensing and, with typical voltage regulator solutions, delivers a constant output current. The proposed concept is validated by an IC prototype in a 0.35 μm BCD process with an area of 0.56 mm. The output current and the off-time values can be modified with external trimmers. It can regulate an output current from a minimum value of 700 mA to a maximum of 2.5 A. The highest current is reached with a switching frequency of 1.5 MHz. A maximum frequency of 3.3 MHz can be reached with an output current of 730 mA. The duty cycle can vary from 20% to 96%. A peak efficiency of 96.4% at 700 mA is obtained. IEEE

Tettamanti, M., Haller, F., Pidutti, A., Del Croce, P., Baschirotto, A. (2023). 2.5A-Constant-Output-Current, Constant-Toff, 1.5MHz, 89%-Efficiency Switching Converter. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS. II, EXPRESS BRIEFS, 1-1 [10.1109/TCSII.2023.3342485].

2.5A-Constant-Output-Current, Constant-Toff, 1.5MHz, 89%-Efficiency Switching Converter

Tettamanti, Marcello
;
Pidutti, Albino;Baschirotto, Andrea
2023

Abstract

In this paper, a Constant-Output-Current, constant-Toff, buck-mode switching converter is presented. The device uses a Peak Current Mode Control (PCMC) with an integrated High-Side (HS) current sensing and, with typical voltage regulator solutions, delivers a constant output current. The proposed concept is validated by an IC prototype in a 0.35 μm BCD process with an area of 0.56 mm. The output current and the off-time values can be modified with external trimmers. It can regulate an output current from a minimum value of 700 mA to a maximum of 2.5 A. The highest current is reached with a switching frequency of 1.5 MHz. A maximum frequency of 3.3 MHz can be reached with an output current of 730 mA. The duty cycle can vary from 20% to 96%. A peak efficiency of 96.4% at 700 mA is obtained. IEEE
Articolo in rivista - Articolo scientifico
Automotive; Buck Converter; Buck converters; Capacitors; Constant Current Source; Constant Toff; Oscillators; Resistors; Sensors; Step-Down Converter; Switches; Switching frequency;
English
13-dic-2023
2023
1
1
none
Tettamanti, M., Haller, F., Pidutti, A., Del Croce, P., Baschirotto, A. (2023). 2.5A-Constant-Output-Current, Constant-Toff, 1.5MHz, 89%-Efficiency Switching Converter. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS. II, EXPRESS BRIEFS, 1-1 [10.1109/TCSII.2023.3342485].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/453748
Citazioni
  • Scopus 0
  • ???jsp.display-item.citation.isi??? ND
Social impact