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RFQ ListingDiscrete Semiconductors
KP3211BSGA
Offline PWM Power Switch with Integrated 650 V MOSFET
KP3211BSGA is a Kiwi Instruments offline multi-mode PWM power switch integrating a 650 V MOSFET and high-voltage startup for non-isolated buck and buck-boost supplies. Multi-mode control removes audio noise and cuts standby below 50 mW, with full protection set and SOP-8 packing for automated assembly.
ManufacturerKiwi Instruments (Biwei Micro)
PackageSOP-8
SeriesKP3211
Power IC Specifications
| Parameter | Value / Specification |
|---|---|
| Function / Topology | Offline multi-mode PWM power switcher for non-isolated buck and buck-boost topologies with integrated 650 V MOSFET and high-voltage startup |
| Input Voltage | 85 V to 265 VAC full-range mains input class; 650 V MOSFET drain breakdown rating |
| Output Voltage / Current | Default 12 V output with FB floating (resistor-programmable); 350 mA to 700 mA load current class @ 85-265 VAC |
| Switching Frequency | 40 kHz to 60 kHz load-adaptive multi-mode control without a fixed internal clock |
| Standby Power | Under 50 mW no-load standby consumption in green mode |
| Protections | Cycle-by-cycle OCP, overload protection (OLP), output OVP, VDD OVP/UVLO with auto recovery, thermal shutdown, internal 3 ms soft start |
| On-Resistance | About 4.5 Ohm static drain-source on-resistance (KP3211 class) |
| Temperature Grade | -40 °C to +85 °C operating ambient |
| Package / Case | SOP-8 |
Power Features & Applications
- Integrated 650 V power MOSFET and high-voltage startup circuit
- Multi-mode frequency-wandering control delivers audio-noise-free operation
- Default 12 V output with FB floating; easily reprogrammed via divider
- Under 50 mW standby in green mode for energy compliance
- Complete protection: OCP, OLP, output OVP, VDD OVP/UVLO, thermal shutdown
- Buck and buck-boost topologies with minimal external component count
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Frequently Asked Questions
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Buyers should check voltage range, current rating, package, protection features and date code for KP3211BSGA, together with live stock and traceable supply.
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