RT9166-33GXL Richtek USA Inc, RT9166-33GXL Datasheet - Page 2

• Manufacturer Part Number: RT9166-33GXL
• Description: IC REG LDO 3.3V 300MA SOT89
• Manufacturer: Richtek USA Inc

Specifications of RT9166-33GXL

• Regulator Topology: Positive Fixed
• Voltage - Output: 3.3V
• Voltage - Input: Up to 5.5V
• Voltage - Dropout (typical): 0.23V @ 300mA
• Number Of Regulators: 1
• Current - Output: 300mA (Max)
• Current - Limit (min): 300mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: TO-243AA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

RT9166/A
Typical Application Circuit
Note: To prevent oscillation, a 1μ μ μ μ μ F minimum X7R or X5R dielectric is strongly recommended if ceramics are
Function Block Diagram
www.richtek.com
2
Functional Pin Description
VIN
VOUT
GND
VOUT
Pin Name
1
used as input/output capacitors. When using the Y5V dielectric, the minimum value of the input/output
capacitance that can be used for stable over full operating temperature range is 3.3μ μ μ μ μ F. (see Application
Information Section for further details)
SOT-89
(TAB)
GND
2
VIN
Supply Input.
Regulator Output.
Common Ground.
3
VIN
GND
SOT-89 (L-Type)
Pin Function
1
(TAB)
VIN
2
V
IN
VOUT
C
1uF
IN
3
Shutdown
Thermal
Current
Limiting
Sensor
VOUT
VIN
1
RT9166/A
SOT-223
GND
(TAB)
GND
2
VOUT
Reference
VIN
Amplifier
3
1.2V
Error
-
C
1uF
OUT
GND
SOT-223 (L-Type)
1
V
OUT
(TAB)
VIN
2
VOUT
VOUT
GND
3
DS9166/A-21 April 2010
VOUT
1
TO-252
GND
2
VIN
3