Power chip

1.5V+1.5V dual positive voltage output low-dropout three-terminal linear voltage regulator circuit

1W, DC input, isolation, 12V to 3.3V, suitable for data exchange circuits, communication isolation, etc.

LM3489 Hysteretic PFET Buck Controller with Enable Pin

ICOFFLINESWPWMOCPOVP7ESIP

Vcore controller

UC3842B, UC3843B series are high performance fixed frequency current mode controllers. These devices are specifically designed for off-line and DC-DC converter applications, providing designers with a cost-effective solution with minimal external components. These ICs feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, a high gain error amplifier, a current sense comparator, and a high current totem pole output suitable for driving power MOSFETs. Additionally, protection features are included, including input and reference undervoltage lockouts each with hysteresis, cycle-by-cycle current limit, programmable output dead time, and a latch for single-pulse metering. These devices are available in 8-pin dual inline plug-in and surface mount (SO-8) plastic encapsulation and 14-pin plastic surface mount (SO-14) encapsulation. The SO-14 encapsulation has separate power and ground pins for the totem pole output stage. The UCX842B has a UVLO threshold of 16 V (on) and 10 V (off), making it ideal for offline converters. The UCX843B is designed for low-voltage applications with UVLO thresholds of 8.5 V (on) and 7.6 V (off).

3.3V fixed output, low dropout voltage 410mV(max)@Iout=400mA, Vin=12V(Max)

5V 1A

Integrated load switch, Vdrop=0.2V@Vin=5V, IL=2.8A

DC-DC module power supply, constant voltage unregulated series, W1-1W single circuit, input voltage +24VDC, output voltage +5VDC, output current +0.2A

5.0V fixed output, Iout=100mA, Vin=30V(Max)

BQ27425-G2A System Side Impedance Track™ Fuel Gauge

Sound and light alarm chip Four sound music driver chip