IC manufacturers Maxim Integrated

IC manufacturers (96)

Maxim Integrated MAX16992 | Demoboard AN5587

Selecting External Components and Compensation for Automotive Step-Up DC-DC Regulator with Preboost Reference Design

Overview

TopologyBoost Converter
Input voltage3.5-6 V
Switching frequency1000-2500 kHz
Output 18 V / 2 A

Description

A high-voltage boost controller, such as the MAX16990 or the MAX16992, the latter of which has 2.2MHzswitching frequency capabilities, has many applications in the automotive field. Two uses are as a preboostregulator to sustain system voltage during cold-/warm-crank or as a power supply for high-brightness LEDs.In this application note, we begin by examining how to realize an automotive high-voltage step-up DC-DC powersupply with the MAX16990/MAX16992 and how to select the external components to achieve best systemperformance. Afterwards, we present a reference design for its preboost application.

Products

Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
fres
(MHz)
Material Samples
744314047SPEC
8 files WE-HCI SMT Flat Wire High Current Inductor 0.47 31.9 9 20 1.35 235 Superflux
Order Code Data­sheet Simu­lation
744314047SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
fres
(MHz)
Material Samples