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L5991D Current-Mode Switching PWM Controller

L5991D Current-Mode Switching PWM Controller

Part number: L5991DBrand: STMicroelectronicsIntegrated Circuits (ICs)

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217 EGP

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Prices updated: 12 Oct 2026

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Lowest price recorded: 217 EGP

About this product

The L5991D is a current-mode PWM controller IC for switch-mode power supply designs. It generates the pulse-width-modulated drive signal that regulates the output of a switching power stage based on feedback. Review the datasheet for input range, output capability and required external components before designing with it.

Specifications

Control mode
Current-mode PWM
Function
Switching regulator controller
Manufacturer
STMicroelectronics

Frequently asked questions

What is the price of L5991D Current-Mode Switching PWM Controller in Egypt?

L5991D Current-Mode Switching PWM Controller currently costs 217 EGP in Egypt.

Where can I buy L5991D Current-Mode Switching PWM Controller in Egypt?

L5991D Current-Mode Switching PWM Controller is available from UGE. Compare the offers above to find the best price.

What is the L5991D used for?

It is the control IC of a switch-mode power supply. It drives the power switch with PWM based on feedback from the output, so it is used in regulator and converter designs rather than as a standalone part.

Can I use it to drive a DC motor?

No. The L5991D is a power-supply controller, not a motor driver. A motor needs a dedicated motor driver IC or module that can handle its current and direction control.