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Hangzhou Silan Microelectronics SD4943RoHS

Manufacturer
Hangzhou Silan MicroelectronicsAsian Brands
MPN
SD4943
LCSC Part #
C2961143
Packaging
SOP-8-150mil
Customer #
Key Attributes
IC REG BUCK ADJ 0.5A SOP-8-150mil
Datasheetpdf iconHangzhou Silan Microelectronics SD4943
In-Stock: 1,730
1,730 In stock, ships now
Minimum: 5Multiple: 5Sales Unit: Piece
Add to BOM List
QtyUnit PriceTotal Amount
5+$ 0.1817$ 0.91
50+$ 0.1584$ 7.92
150+$ 0.1484$ 22.26
500+$ 0.136$ 68.00
2,500+$ 0.1304$ 326.00
4,000+$ 0.1271$ 508.40
Standard Packaging4000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerHangzhou Silan Microelectronics
PackagingSOP-8-150mil
Operating Temperature-
FunctionStep-down type
Number of Outputs1
Frequency - Switching2kHz~120kHz
FeaturesLight load efficient mode;Overcurrent Protection
Output TypeAdjustable
TopologyBuck;Flyback
Operating Voltage20V~150V
Switch tube (built-in/external)Built-in
Output Voltage-
Output Current500mA
Quiescent Current-
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Introduction

AI Translation

SD4943 is a switching step-down DC-DC converter designed for 20V~150Vdc input, with a continuous output current of 0.5A and a peak output current of up to 0.8A.

The SD4943 features a minimum switching frequency of 2KHz and a maximum switching frequency of 120KHz, with frequency reduction capability to further optimize conversion efficiency under light-load conditions. A soft-start function is incorporated to reduce device stress and prevent inductor saturation.

The SD4943 also integrates comprehensive protection functions for various fault conditions, including VDD undervoltage protection, output overload protection, output overvoltage protection, and over-temperature protection. Upon triggering any protection, the circuit will continuously auto-restart until the system returns to normal operation.

Applications

AI Translation
  • DC step-down circuits
  • Buck-boost systems
  • Flyback systems