China Brands chips make your BOM cost down

China brand DC/DC chip recommends BT1433, BT1433 can replace MP9943,MP4423 and BT5981 can replace LT8301 to make your BOM cost down

Today I would like to introduce to you the DC/DC chip by brand BATELAB, BT1433. This chip can replace the MP9942 and MP4423. It has cost advantages and can provide patterned wafers.

BT1433 is an easy-to-use synchronous step-down DC/DC converter capable of driving up to 3A of load current. Even in a wide input range, it still has good load regulation and line regulation. The chip's synchronous operating mode can achieve higher efficiency within the load range. It adopts current control mode, which has the advantages of fast transient response, simple loop and good stability.

Feature

Input voltage range: 4V to 36V

3A continuous output current

Minimum on time: 90ns

96% maximum duty cycle

0.8V to 32V adjustable output

76mΩ/50mΩ low on-resistance power MOSFETS

Fixed 410kHz switching frequency

High efficiency external 200k to 2.2MHz clock synchronization Precision enable

Internal power saving mode

Internal soft start

Cycle-by-cycle overcurrent protection and hiccup mode short-circuit protection

Overtemperature protection

QFN-8 (3mmx3mm) package and ESOP8 package

Application

Consumer electronics

Multifunction printer (MFP)

Distributed power supply system

BT5981 can replace LT8301

Feature

2.7V to 42V input voltage range

1.2A, 65V built-in DMOS power tube

Low quiescent current: 140uA in sleep mode and 350uA in working mode

Heavy load works in boundary mode

Light load works in low ripple burst mode

Minimum load <0.5% of full load (typical value)

VOUT is set by external resistor

No third winding, optocoupler device

Built-in compensation and soft start

Output short-circuit protection

BT5981Q meets AEC-Q100 automotive standards

Package form SOT23-5

Application

Power supplies for automotive, industrial, medical, automation

Isolated auxiliary/housekeeping power supplies

Welcome to contact SEMILOTEC for more information. China brands chips replacement will be your future choice.