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国外大牛写的电源控制仿真模型，讲解很详细。

FFeeaattuurreess  Input voltage range: 2.2 to 6V   Programmable LED Current   Drives LEDs Up to 27V   Switching Frequency：up to 800KHz  Wide dimming frequency range: 20KHz~  360 KHz   Programmable Overvoltage Protection   Tiny SOP8/PP Package

Wide 2.2V to 6V Input Voltage Range „ 0.20V FB adjustable LED drive current „ Directly drive 9 Series 1W LED at VIN>=6V „ Fixed 800KHz Switching Frequency „ Max. 3A Switching Current Capability „ Up to 92% efficiency „ Excellent line and load regulation „ EN PIN TTL shutdown capabilit ...

2.7V to 5.5V input voltage Range Efficiency up to 96%  24V Boost converter with 12A switch current Limit 600KHz fixed Switching Frequency Integrated soft-start Thermal Shutdown Under voltage Lockout Support external LDO auxiliary power supply 8-Pin SOP-PP PackageAPPLICATIONSPorta ...

Precision, Low Noise, CMOS, Rail-to-Rail, Input/Output Operational Amplifiers Data Sheet AD8605/AD8606/AD8608The AD8605, AD8606, and AD86081 are single, dual, and quad rail-to-rail input and output, single-supply amplifiers. They feature very low offset voltage, low input voltage and current no ...

The PW5410B is a low noise, constant frequency (1.2MHz) switched capacitor voltage doubler. Itproduces a regulated output voltage from 1.8V to 5V input with up to 100mA of output current. Lowexternal parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT) makethe PW5410B i ...

The PW5410A is a low noise, constant frequency (1.2MHz) switched capacitor voltage doubler. Itproduces a regulated output voltage from 2.7V to 5V input with up to 250mA of output current. Lowexternal parts count (one flying capacitor and two small bypass capacitors at VIN and VOUT) makethe PW5410A i ...

The PW5300 is a current mode boost DC-DC converter. Its PWM circuitry with built-in 0.2Ω powerMOSFET make this regulator highly power efficient. The internal compensation network alsominimizes as much as 6 external component counts. The non-inverting input of error amplifierconnects to a 0.6V preci ...

The PW4556 series of devices are highly integrated Li-Ion and Li-Pol linear chargers targetedat small capacity battery for portable applications. It is a complete constant-current/ constantvoltage linear charger. No external sense resistor is needed, and no blocking diode is required dueto the inter ...

The PW4055 is a complete constant-current /constant-voltage linear charger for single cell lithiumion batteries.Its ThinSOT package and low external component count make the PW4055 ideallysuited for portable applications.Furthermore, the PW4055 is specifically designed to work within USBpower specif ...