RT9164CGG Richtek USA Inc, RT9164CGG Datasheet - Page 2

• Manufacturer Part Number: RT9164CGG
• Description: IC REG LDO ADJ 1A SOT223
• Manufacturer: Richtek USA Inc

Specifications of RT9164CGG

• Regulator Topology: Positive Adjustable
• Voltage - Output: Adj to 1.25V
• Voltage - Input: 3 V ~ 12 V
• Voltage - Dropout (typical): 1.3V @ 1A
• Number Of Regulators: 1
• Current - Output: 1A (Max)
• Current - Limit (min): 1A
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: TO-261-4, TO-261AA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

V
IN
RT9164C
Typical Application Circuit
Function Block Diagram
Functional Pin Description
www.richtek.com
2
Pin Name
ADJ/GND
VOUT
VIN
= 5V
(1) C
(2) C
Figure 1. Adjustable Voltage Regulator
10uF
C
VIN
OUT
IN
IN
needed if device is far from filter capacitors.
RT9164C
required for stability.
Pin Function
Adjust Output or Ground.
Output Voltage.
Power Input.
ADJ
VOUT
I
ADJ
V
REF
133
232
1%
1%
R1
R2
V
OUT
= V
10uF
Tantalum
C
REF
OUT
V
Thermal Overload
(1+
OUT
R
R
= 3.45V
2
1
Regulation
)+I
Amplifier
Amplifer
Limiting
Voltage
Current
ADJ
R
2
V
IN
SENSE
LIMIT
= 5V
Figure 2. Fixed Voltage Regulator
(1) C
(2) C
V
10uF
REF
C
S.O.A.
IN
OUT
IN
needed if device is far from filter capacitors.
required for stability.
VIN
RT9164C-33
GND
VOUT
VIN
ADJ/GND
VOUT
DS9164C-02 April 2010
I
Q
Tantalum
10uF
C
OUT
V
OUT
= 3.3V