PL84052 is a PWM controller, designed for highperformance synchronous Buck DC/DC applications with input voltages 3.0 V to 32 V(36 V maximum).PL84052 employs Constant ON time control. The switching frequency could be set to 150kHz,300kHz600kHz or 1200kHz based on different resistor value between FREQ pin and GND pin. The device also features a programmable soft-start function and offers all kinds of protection features including cycle-by-cycle current limiting, input under voltage lockout (UVLO),output over voltage protection (OVP), thermal shutdow and output short protection etc.

The RY9121 is a high frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a very compact solution to provide a 2A continuous output current over a wide input supply range, with excellent load and line regulation. ECOT control operation provides very fast transient response and easy loop design as well as very tight output regulation. The RY9121 requires a minimal number of readily available, external components and is available in a space saving SOT23-6 package.

The RY9121E is a high frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a very compact solution to provide a 2A continuous output current over a wide input supply range, with excellent load and line regulation. ECOT control operation provides very fast transient response and easy loop design as well as very tight output regulation. The RY9121E requires a minimal number of readily available, external components and is available in a space saving SOT23-6 package.

The RY8336 is a high frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a very compact solution to provide a 3A continuous current over a wide input supply range, with excellent load and line regulation. The RY8336 requires a minimal number of readily available, external components and is available in a space saving ESOP8 package.

The RY8320 is a high frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a very compact solution to provide a 2A continuous current over a wide input supply range,with excellent load and line regulation. The RY8320 requires a minimal number of readily available, external components and is available in a space saving SOT23-6 package

The RY8510 device is high-efficiency, synchronous step-down DC/DC regulators. With a wide input range, it issuitable for a wide range of applications, such as power conditioning from unregulated sources. It features a lowRDSON (500m?/300m? typical) internal switch for maximum efficiency (92% typical). Supports PSM mode, theoperating frequency is fixed at 850kHz, allowing the use of small external components while still being able to havelow output voltage ripple. With OVP function, the IC can stand off input voltage as high as 50V

The RY8411 device is high-efficiency, synchronous step-down DC/DC regulators. With a wide input range, it is suitable for a wide range of applications, such as power conditioning from unregulated sources. It features a lowRDSON(250m?/150m? typical) internal switch for maximum efficiency (92% typical). Supports PSM mode, theoperating frequency is fixed at 800kHz, allowing the use of small external components while still being able to havelow output voltage ripple. With OVP function, the IC can stand off input voltage as high as 42V.

The RY8310 is a high frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a very compact solution to provide a 1A continuous current over a wide input supply range, with excellent load and line regulation. The RY8310 requires a minimal number of readily available, external components and is available in a space saving SOT23-6 package.

SLM6900是一款支持多節多類型鋰電池或磷酸鐵鋰電池的充電電路，它預置了三節和四節鋰電池充電模式，同時也支持通過外圍分壓電阻調節的其它輸出電壓模式。它是采用300kHz固定頻率的同步降壓型轉換器，因此具有很高的充電效率，自身發熱量極小。 SLM6900包括完整的充電終止電路、自動再充電和一個精確度達±1.0%的充電電壓控制電路，內部集成了輸入低電壓保護、輸出短路保護、電池溫度保護等多種功能。 SLM6900采用TSSOP-14L封裝，外圍應用簡單，作為大容量電池的高效充電器。

NS4054 是一款 4.2V 單節鋰電池充電管理芯片。采用三段式充電過程，即涓流、恒流和恒壓三個充電階段。芯片還支持 0VBAT 浮充。充電電流可以通過 RPROG電阻設定。芯片較少的外部元件數目使得 NS4054 成為便攜式應用的理想選擇。 NS4054 內置有防反接電路模塊，在電池反接時不會損壞芯片。同時芯片內置有過溫保護功能，在芯片溫度過高時會自動調節充電電流，以便在大功率操作或高環境溫度條件下對芯片溫度加以限制。

SLM6600(S) 是一款面向5V適配器的3A鋰離子 電池充電器。它是采用800KHz固定頻率的同步降壓型轉換器，具有高達92%以上的充電效率，自身發熱量極小。 SLM6600(S)包括完整的充電終止電路、自動再充電和一個精確度達±1%的4.2V預設充電電壓，內部集成了防反灌保護、輸出短路保護、芯片及電池溫度保護等多種功能。 SLM6600(S)采用帶散熱片的SOP8封裝，并且只需極少的外圍元器件，因此能夠被嵌入在各種手持式應用中，作為大容量電池的高效充電器。

HTC6232是一款內置同步升壓的高集成2A電池充電芯片，支持2節或3節串聯鋰電池充電。