TOP243F [Power Integrations]

Name: TOP243F
Brand: Power Integrations
SKU: TOP243F
Availability: InStock

Part No:

TOP243F

Power Management ICs

Manufacturer:

Power Integrations

Description:

The TOP242-250 TOPSwitch®-GX family is an integrated off-line switcher with extended power range and design flexibility. It integrates a high-voltage power MOSFET, PWM control, and protection circuitry, featuring EcoSmart energy efficiency.

RoHS Status:

Datasheet:

Stock Status:

Available for RFQ

Pricing:

Request Volume Pricing

Quote Response:

Within 24 Hours

Shipping:

In-stock parts ship in 1–2 business days

Specification

Type

Parameter

Current Limit

30% ~ 100%

Supply Voltage

85 VAC ~ 265 VAC

Package

DIP-8B, SMD-8B, TO-263-7C, TO-220-7C, TO-262-7C

RoHS Status

RoHS Compliant

RoHS Status

RoHS Compliant

Drain Voltage Rating

700V

Frequency Jittering (AT 250HZ)

±4kHz at 250Hz

Light Load Frequency Min 132k

30kHz

Light Load Frequency Min 66k

15kHz

Maximum Duty Cycle

78%

Soft Start Time

10 ms

Products Detail

TOPSwitch-GX integrates a high-voltage power MOSFET, PWM control, fault protection, and control circuitry onto a single CMOS chip. It reduces system cost and improves design flexibility, performance, and energy efficiency. Functions include line sensing (OV/UV, line feed-forward/DC reduction), externally set current limit, remote ON/OFF, synchronization, and frequency selection. Features include soft-start, 132 kHz switching frequency (automatically reduced at light load), frequency jittering for lower EMI, wider DC MAX, hysteretic thermal shutdown, and tighter parameter tolerances.

Key Features

Extended power range
No heatsink required up to 34 W
Integrated soft-start
Externally programmable current limit
Wider duty cycle
Separate line sense and current limit pins
Line under-voltage detection
Line overvoltage shutdown
Line feed-forward with DC MAX reduction
Frequency jittering reduces EMI
Regulates to zero load
132 kHz frequency
Half frequency option
Hysteretic thermal shutdown
Low standby power consumption
Frequency reduction at light load
Remote shutdown/wake-up

Application scenarios

Universal input power supply
Adapter
High power DC input
Multiple output
Processor controlled supply

Documents

Datasheets:

TOP242-250

Product FAQ

1. Is TOP243F available for RFQ?

Yes. TOP243F by Power Integrations is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

2. Why is there no fixed price for TOP243F?

Pricing for TOP243F can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

3. What are the key specifications of TOP243F?

TOP243F is a Power Integrations Power Management ICs with Frequency Jittering (AT 250HZ): ±4kHz at 250Hz and Light Load Frequency Min 132k: 30kHz. Review the product details or submit an RFQ if you need confirmation before purchase.

4. How fast can I get a quote for TOP243F?

Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

5. How soon can TOP243F be shipped?

If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

6. Can you suggest alternatives to TOP243F?

Yes. If TOP243F is unavailable, obsolete, or does not meet your required lead time, we can help check similar Power Integrations Power Management ICs parts or compatible alternatives.

RFQ

Part Number:

TOP243F

Manufacturer:

Power Integrations

Looking for Pricing? Contact us for volume pricing.

Shipping & Warranty

Fast Dispatch: Ships in 5-7 days(in-stock parts within 1-2 days)

Unishop Global Export: 1-7 days, $40.00

Guaranteed Delivery: Door-to-door in 30 days

Compliant Worldwide Shipping: DHL, FedEx, SF, and UPS.

Feature

IMPORTANT NOTICE

Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.