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LTK5302 is a built-in synchronous BOOST boost audio amplifier that can provide up to 11W output power under 2Ω load.

Function: Built-in synchronous boost_mono class G 11W audio power amplifier

Package: ESOP10 Pin type

Manufacturer: ShenZhen ChipSourceTek Technology

Image

LTK5302 datasheet

Description

LTK5302 can adjust the boost voltage level externally, suitable for various application conditions. At the same time, the EN pin has a one-line pulse control function, which can control a single pin to make the chip enter the Class D normal mode, Class D anti-breaking mode, Class AB mode, and shutdown mode, so as to save IO ports and further save costs for customers.

Features

1. No diode required for external applications

2. Two-level boost voltage selection: 6.5V or 7.1V

3. Save one-wire pulse control for IO ports

4. No interference in FM mode

5. Ultra-low noise floor, ultra-low distortion

Pinout

ltk5302 ic pinout diagram

Applications

1. Radio, amplifier

2. Navigation, portable game console, toys

3. Trolley speaker

4. Smart home and other audio products

LTK5302 Datasheet

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Description

The HT4936S is a monolithic, mobile power management chip that uses advanced charge-and-discharge port sharing and synchronous rectification with low external components and excellent performance. Form a good 1A-in / 1A-out 4LEDs mobile power.

Circuit

Features

1. Built-in maximum 1A linear charging mode, charging current adjustable externally;

2. trickle / constant current / constant voltage three-stage charging, 4.20V / 4.35V optional support 0V battery charge;

3. built-in charging can automatically reduce the charging current according to temperature rise, 130 degrees began to decline, the minimum can be reduced to 0;

4.step-up using synchronous rectification circuit, the highest efficiency over 90%, low heat, fixed 5.1V output, do not need external Resistance setting

5. Boost output current 1A (BTP = 3.6V);

6. With constant power output function, a complete over current, short circuit protection, built-in temperature protection automatically stop temperature rise over-temperature;

Pinout

HT4936S Datasheet