Parameters |
ECCN Code |
EAR99 |
Terminal Position |
QUAD |
Terminal Pitch |
0.4mm |
Frequency |
200kHz |
Function |
Step-Down |
Number of Outputs |
1 |
Output Voltage |
3.3V |
Output Type |
Transistor Driver |
Input Voltage-Nom |
5V |
Analog IC - Other Type |
SWITCHING CONTROLLER |
Output Configuration |
Positive |
Voltage - Supply (Vcc/Vdd) |
4.5V~5.5V |
Control Features |
Current Limit, Enable, On Time Control, Phase Control, Power Good |
Input Voltage (Min) |
4.5V |
Topology |
Buck |
Control Mode |
CURRENT-MODE |
Input Voltage (Max) |
5.5V |
Control Technique |
PULSE WIDTH MODULATION |
Synchronous Rectifier |
Yes |
Switcher Configuration |
PUSH-PULL |
Clock Sync |
No |
Height Seated (Max) |
0.8mm |
Length |
2mm |
Width |
2mm |
REACH SVHC |
No SVHC |
RoHS Status |
ROHS3 Compliant |
Factory Lead Time |
1 Week |
Mounting Type |
Surface Mount |
Package / Case |
12-WFQFN Exposed Pad |
Surface Mount |
YES |
Number of Pins |
12 |
Operating Temperature |
-40°C~85°C TA |
Packaging |
Tape & Reel (TR) |
Published |
2011 |
Pbfree Code |
yes |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
3 (168 Hours) |
Number of Terminations |
12 |
RT8228BGQW Overview
With its 12-WFQFN Exposed Pad package, the switching controller fits the needs of most applications. For 1 outputs, the dc motor controller is appropriate. There is a Tape & Reel (TR) solid enclosure around the pmic. The program can handle Transistor Driver dc switching's outputs (s). Voltages 4.5V~5.5V are the dc control's supply voltage and operating voltage, respectively. Worked in a -40°C~85°C TA dc switcher before. The Surface Mount makes it ideal for general dc dc regulator. Current Limit, Enable, On Time Control, Phase Control, Power Good provides dcdc regulator efficient switching control. Thare switch converters are connected to an analog integrated circuit (IC) of type SWITCHING CONTROLLER. Switching converters are designed with the terminal (s) at position QUAD . The 12 terminations can be used for a wide range of dc switching. Some of the control techniques used by these dc dc converter ics are PULSE WIDTH MODULATION. DC switcher's input voltageis 5V volts. There are a total of 12 pins on switching converter. It is recommended that the input voltage of the dc dc voltage regulator be 4.5V. Statistically, DC regulator outputs 3.3V volts. It should be noted that the dc to dc regulator only accepts 5.5V voltage as input voltage. Switching controller operates at 200kHz Hz.
RT8228BGQW Features
Transistor Driver Outputs
Current Limit, Enable, On Time Control, Phase Control, Power Good
PULSE WIDTH MODULATION
Frequency: 200kHz
RT8228BGQW Applications
There are a lot of Richtek USA Inc. RT8228BGQW DC to DC converter applications.
- Various CNC machine tools
- CNC system
- Analog precision reference circuits
- Energy management systems
- Balance equipment
- Electric water heaters
- USB circuits
- Imported equipment
- Access control systems
- Domestic water pumps