LD7535/LD7535A Integrated Circuits Electronic Component IC Chip

LD7535/LD7535A

Green-Mode PWM Controller with Integrated Protections

Rev. 01c

General Description

The LD7535/LD7535A are low cost, low startup current,

current mode PWM controllers with green-mode powersaving operation. The integrated functions include the

leading-edge blanking of the current sensing, internal slope

compensation and the tiny package of SOT-26. They

provide the users a superior AC/DC power application of

higher efficiency, low external component counts, and lower

cost solution.

Furthermore, LD7535/LD7535A features more protections

like OLP (Over Load Protection) and OVP (Over Voltage

Protection) to eliminate the external protection circuits. And

to satisfy different designs, 2 versions of OVP levels are

implemented as ---

z LD7535 --- 28.0V ± 1.5V.

z LD7535A --- 21.0V ± 1.5V.

Features

z High-Voltage CMOS Process with Excellent ESD

protection

z Very Low Startup Current (<20μA)

z Current Mode Control

z Non-audible-noise Green Mode Control

z UVLO (Under Voltage Lockout)

z LEB (Leading-Edge Blanking) on CS Pin

z Programmable Switching Frequency

z Internal Slope Compensation

z OVP (Over Voltage Protection) on Vcc Pin

z OLP (Over Load Protection)

z 300mA Driving Capability

Applications

z Switching AC/DC Adaptor and Battery Charger

z Open Frame Switching Power Supply

z 384X Replacement

 Package ：sot-26

pb free

top mark: ywp/35

shipping: 3000/tape&reel

price: 0.28-4.5