HC2513 Datasheet – Precision PWM Power Switch

Part Number : HC2513

Function : High Precision CC/CV Primary-e PWM Power Switch, 5V 1A travel charger IC

Package : SOP8 Pin Type

Manufacturers :

Description :

HC2513 is a high performance offline PWM Power switch for low power AC/DC charger and adapter applications. It operates in primary-side sensing and regulation. Consequently, opto-coupler and TL431 could be eliminated. Proprietary Constant Voltage (CV) and Constant Current (CC) control is integrated as shown in the figure below.


HC2513 PWM power switch


1. High Precision Constant Current Regulation at Universal AC input
2. Primary-side Sensing and Regulation Without TL431 and Opto-coupler
3. Programmable CV and CC Regulation
4. Adjustable Constant Current and Output Power Setting


Pin Num Pin Name I/O Description
1 VDD P Power Supply
2 COMP I Loop Compensation for CV Stability
The Voltage feedback from auxiliary winding. Connected to resistor divider from auxiliary winding reflecting output voltage. PWM duty cycle is determined by EA output and current sense signal at pin 4.
4 CS I Current sense input
5/6 DRAIN O HV MOSFET Drain pin. The Drain pin is connected to the primary lead of the transformer
7/8 GND P Ground



Low Power AC/DC offline SMPS for

1. Cell Phone Charger
2. Digital Cameras Charger
3. Small Power Adapter
4. Auxiliary Power for PC, TV etc.
5. Linear Regulator/RCC Replacement

HC2513 Datasheet


FAC2596 Datasheet – 3A, 150KHZ, DC/DC Converter

Part Number : FAC2596

Function : 3A, 150KHZ, PWM Buck DC/DC Converter

Package : TO-220B-5L, TO200-5L, TO263-5L Type

Manufacturers : Fisrt Silicon

Image :

FAC2596 converter

Description :

The FAC2596 is a series of easy to use fixed and adjustable step-down (buck) switch-mode voltage
regulators. These devices are available in fixed output voltage of 3.3V, 5V, and an adjustable output version. Both versions are capable of driving a 3A load with excellent line and load regulation.


FAC2596 datasheet pinout


1. 3.3V, 5V and adjustable output versions
2. Output adjustable from 1.23v to 43V
3. Fixed 150KHz frequency internal oscillator
4. Guaranteed 3A output load current

 FAC2596 Datasheet


Other data sheets within the file : FAC2596T, FAC2596DD, FAC2596P