RT9183-12GG Richtek USA Inc, RT9183-12GG Datasheet - Page 3

• Manufacturer Part Number: RT9183-12GG
• Description: IC REG LDO 1.2V 1.5A SOT223
• Manufacturer: Richtek USA Inc

Specifications of RT9183-12GG

• Regulator Topology: Positive Fixed
• Voltage - Output: 1.2V
• Voltage - Input: 2.3 V ~ 5.5 V
• Voltage - Dropout (typical): 0.33V @ 1.5A
• Number Of Regulators: 1
• Current - Output: 1.5A (Max)
• Current - Limit (min): 2A
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: TO-261-4, TO-261AA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Function Block Diagram
DS9183-16 February 2011
Functional Pin Description
Pin Name
EN
VIN
GND
VOUT
ADJ
Chip Enable Control Input.
Note that the device will be in the unstable state if the pin is not connected.
Supply Input.
Common Ground.
Regulator Output.
The output voltage is set by the internal feedback resistors when this pin
grounded. If external feedback resistors are applied, the output voltage will be :
Figure 3. Fixed Operation with SOP-8 and TO-263-5 packages
VIN
EN
Enable
0.1µF
V
Reference
Shutdown
V
C
OUT
IN
Logic
0.8V
= 0.8 × (1 +
C
10µF
IN
Pin Function
(SOP-8 & TO-263-5)
VIN
EN
-
+
Output Mode
Amplifier
Comparator
Error
RT9183
R
R
GND ADJ
Current Limit
2
1
) Volts
Sensor
VOUT
-
+
Shutdown
Thermal
+
-
100mV
C
10µF
OUT
V
OUT
VOUT
ADJ
GND
RT9183
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