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LD5523Q Datasheet Multi-mode Pwm Controller

Manufacturer: Leadtrend Technology

Overview: LD5523P/Q 04/26/2017 Multi-Mode PWM Controller of Flyback with Frequency Swapping and Integrated Protection REV.

This datasheet includes multiple variants, all published together in a single manufacturer document.

Datasheet Details

Part number LD5523Q
Manufacturer Leadtrend Technology
File Size 0.96 MB
Description Multi-Mode PWM Controller
Datasheet LD5523Q LD5523P Datasheet (PDF)

General Description

In order to enhance the efficiency performance, the LD5523P integrates the multi-mode PWM controller, which consists of Quasi-Resonant (QR) PWM control for light load condition and peak load mode for heavy load condition.

Moreover, the QR controller not only gains the system performance, but also brings the worse EMI capability, while the frequency swapping function of LD5523P can reduce the EMI emission of SMPS and helps the power circuit designers to simply deal with EMI filter and saves several ponent and developing time.

The LD5523P is implemented in SOT-26 package, and includes the prehensive protection function, such as Over Load Protection (OLP), Over Voltage Protection (OVP), Output Short Circuit Protection (OSCP) and internal Over Temperature Protection (OTP).

Key Features

  • Secondary-side feedback control with quasi-resonant + peak load mode operation.
  • Low Startup Current (.

LD5523Q Distributor