FP6339WQGTR PDF Datasheet – Step-Down Controller

Part Number : FP6339WQGTR, FP6339

Function : Synchronous Step-Down Controller

Package : TQFN-16 (3mmx3mm) type

Manufacturers : Fiti ( fitipower integrated technoloty inc )

Image :

FP6339WQGTR datasheet pdf


The FP6339WQGTR is a cost effective, constant on-time synchronous buck, pseudo fixed-frequency, PWM controller for voltage regulation in system power applications, such as notebook PCs and other battery operated portable devices. The FP6339 includes a PWM controller generating output voltage form 0.75V to 5.25V using external resistors.


1. High Efficiency and Low Power Consumption
2. 1µA Typical Shutdown Current
3. ±1% Internal Reference Accuracy
4. Wide Input Supply Voltage Range : 3V to 25V
5. Internal Soft-Start
6. Under-Voltage-Lock-Out Protection
7. Integrated Soft-Stop at Output


1. Notebook and Sub-Notebook Computers
2. I/O Supplies
3. System Power Supplies

FP6339WQGTR PDF Datasheet

FP6339WQGTR pdf


SS6610 Datasheet PDF – Step-up DC/DC Converter

Part Number : SS6610

Function : High Efficiency Synchronous Step-up DC/DC Converter

Package : MSOP-8 Pin Type

Manufacturers : Silicon Standard Corporation ( www.SiliconStandard.com )

Pinouts :

SS6610 datasheet


Description :

The SS6610/SS6611 are high-efficiency step-up DC/DC converters, with a start-up voltage aslow as 0.8V, and an operating voltage down to 0.7V. Consuming only 20µA of  quiescent current, these devices include a built-in synchronous rectifier that reduces size and cost by eliminating the need for an external Schottky diode, and improves overall efficiency by minimizing losses.


1. High efficiency. (93% when VIN=2.4V, VOUT=3.3V, IOUT=200mA)
2. Output current up to 500mA. (SS6610 at VIN=2.4V and VOUT=3.3V)
3. Quiescent supply current of 20mA.
4. Power-saving shutdown mode (0.1μA typical).
5. Internal synchronous rectifier (no external diode required).
6. On-chip low-battery detector.
7. Low battery hysteresis


1. Palmtop & Notebook Computers.
2. PDAs
3. Wireless Phones
4. Pocket Organizers.
5. Digital Cameras

Other data sheets within the file : SS6610CO, SS6610COTR, SS6610CX, SS6611CO

SS6610 Datasheet PDF Download

SS6610 pdf