OB2500 In Stock

OB2500 PSR Power Switch with Integrated MOSFET

Name: OB2500 PSR Power Switch with Integrated MOSFET
Brand: On-Bright
SKU: OB2500

The OB2500 is an On-Bright offline primary-side-regulation (PSR) power switch with an integrated driver power MOSFET, achieving CC/CV constant-current/voltage output from primary-side sensing alone — eliminating the TL431 and opto-coupler and cutting BOM. It features frequency shuffling for low EMI, UVLO and over-temperature (OTP) protection, very low standby power, and DOE Level 6 average efficiency, in OB2500N (SOP7) and OB2500P (SOP8) — for 5V USB phone chargers and low-power AC/DC adapters.

Function

PSR offline power switch

Integrated MOSFET

Built-in driver power MOSFET

Regulation

Primary-side CC/CV (no opto/TL431)

EMI

Frequency shuffling

Features

PSR power switch with integrated driver MOSFET
Primary-side CC/CV, no TL431/opto-coupler
Minimal BOM, very low standby power
Frequency shuffling for low EMI
UVLO and over-temperature (OTP) protection
OB2500N (SOP7) / OB2500P (SOP8)

Specifications

Function	PSR offline power switch
Integrated MOSFET	Built-in driver power MOSFET
Regulation	Primary-side CC/CV (no opto/TL431)
EMI	Frequency shuffling
Protection	UVLO, OTP; DOE Level 6 efficiency
Package	SOP7 (OB2500N) / SOP8 (OB2500P)

Applications

PSR Power SwitchIntegrated MOSFETChargerAC/DCOn-Bright

Order Info

Stock, pricing, lead time, and samples for OB2500 — we reply within one business day.

Request Quote Request datasheet / sample

On-Bright

China

Power Management & LED Lighting Driver ICs

View all On-Bright products → Official On-Bright site

OB2500 — Frequently Asked Questions

Where can I buy OB2500?

JLink Technology is an authorized On-Bright distributor serving Taiwan, Mainland China, and Hong Kong. Submit an RFQ for OB2500 and we will respond with pricing and lead time within one business day.

Is OB2500 in stock?

Stock and lead time for OB2500 vary by quantity. Send us your required quantity via the RFQ form and we will confirm current availability and delivery schedule.

Can I get the OB2500 datasheet and samples?

Yes. As an authorized On-Bright distributor, JLink Technology can provide the official OB2500 datasheet, samples, and engineering support. Contact us to request them.

What is the minimum order quantity for OB2500?

We support orders from prototype samples to mass production. Tell us your target volume in the RFQ and we will quote accordingly.

Is there a pin-compatible alternative or second source for OB2500?

Tell us the part you need to replace and your application. As a multi-line authorized distributor, JLink Technology can suggest a verified cross-reference or second source related to OB2500 where one exists, and quote pricing, stock, and lead time.

Related Products

OB5269 In Stock

OB5269 Green-Mode Current-Mode PWM Flyback Controller

The OB5269 is a green-mode current-mode PWM flyback controller from On-Bright, integrating an HV startup circuit and extended burst mode that reduces frequency at light load for higher efficiency and energy-standard compliance. With built-in OCP/OLP/UVLO/OTP/OVP protections in an SOP-8 package, it suits phone chargers, adapters, and low-power AC/DC supplies.

PWM ControllerFlybackAC/DC

Details Request Quote

OB3375 In Stock

OB3375 Quasi-Resonant Buck LED Driver Controller

The OB3375 is a high-efficiency buck LED driver controller from On-Bright using quasi-resonant, peak-current-mode control for white-LED and LCD-backlight strings. A built-in transconductance amplifier gives accurate constant-current (CC) regulation, with HPWM current setting and LPWM low-frequency dimming (1%~100%), plus full protection (LED open/short, CS open, MOS/diode/inductor short, OTP, UVLO). SOP8.

LED DriverBuckQuasi-Resonant

Details Request Quote

OB3392 In Stock

OB3392 Offline Single-Stage PSR Constant-Current LED Driver

The OB3392 is an offline (AC-DC) isolated single-stage primary-side-regulated (PSR) constant-current LED lighting driver controller from On-Bright, with primary-side current regulation that needs no opto-coupler or TL431. It uses constant on-time for high power factor and quasi-resonant operation for efficiency, with line/load compensation and LED open/short, cycle-by-cycle current limit, VDD UVLO/OVP, and over-temperature protection. For LED bulbs and tubes. SOT23-6.

LED DriverConstant CurrentPSR

Details Request Quote