OB2273AP Datasheet PDF – PWM Controller – On-Bright

Part Number: OB2273AP, OB2273MP

Function: High Performance Current Mode PWM Controller

Package: SOT23-5, DIP 8 Pin Type

Manufacturer: On-Bright

Image and Pinouts:

OB2273AP datasheet


The OB2273AP is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback converter applications.It offers complete protection coverage with auto-recovery including Cycle-by-Cycle current limiting (OCP), over load protection (OLP), and VDD under voltage lockout (UVLO). It also provides the protections with latched shut down including over temperature protection (OTP), and over voltage (fixed or adjustable) protection (OVP).


1. Power on Soft Start Reducing MOSFET Vds Stress

2. Frequency shuffling for EMI

3. Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design

4. Audio Noise Free Operation

5. Fixed 65KHZ Switching Frequency

6. Comprehensive Protection Coverage

Odering Information and Typical Applications:

OB2273 Datasheet


1. Battery Charger

2. Power Adaptor

3. Set-Top Box Power Supplies

4. Open-frame SMPS

OB2273AP Datasheet PDF Download

OB2273AP pdf

Other data sheets are available within the file: OB2273, 0B2273, 0B2273AP, OB2273MP