RT9261-36GX

Voltage - Input (Max):	7V
Supplier Device Package:	SOT-89-3
Package / Case:	TO-243AA
Mounting Type:	Surface Mount
Operating Temperature:	-20°C ~ 85°C (TA)
Synchronous Rectifier:	No
Frequency - Switching:	120kHz
Current - Output:	80mA (Switch)
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.6V
Series:	--
Voltage - Input (Min):	1V
Number of Outputs:	1
Output Type:	Fixed
Topology:	Boost
Output Configuration:	Positive
Function:	Step-Up
Part Status:	Active
Packaging:	Tape & Reel (TR)

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RT9261-36GX application field and working principleRT9261-36GX belongs to DC DC switching regulators category in the PMIC (Power Management Integrated Circuits). It is a 2-channel integrated, step-down green mode PWM (Pulse Width Modulation) controller which can use for low standby power application and can help power management. By using RT9261-36GX, it can provide low drop out voltage, high efficieny and small package size.Application FieldRT9261-36GX is a ideal switching regulator solution, and suitable for a wide range of applications. 1. Battery ChargerBattery charger requires high efficieny and low standby power, RT9261-36GX can help reduce the power consumption and can provide high efficieny and small package size. 2. PC/Notebook AdapterPC/Notebook Adapter requires high accurancy voltage and precise current limitation, RT9261-36GX can provide precise output and help reduce the overall size of notebooks. 3. Digital Picture FrameDigital picture frame requires low standby current and high efficiency, RT9261-36GX can help reduce the power consumption and help reduce the overall size of the digital picture frames. 4. Battery Powered DevicesThe battery powered devices, like mobiles phones and PDAs, need low power for their long working time. RT9261-36GX can help reduce the power consumption and optimize the battery power. Working PrincipleRT9261-36GX is a 2-channel integrated, step-down green mode PWM controller which can use for low standby power application and can help power management. By using RT9261-36GX, it can provide low drop out voltage, high efficieny and small package size. RT9261-36GX based on hysteresis OVP (over voltage protection) to protect the input voltage and two pieces of comparators to control loop. The error amplifier (EA) amplifies the feedback voltage and compared with the reference voltage. The EA’s output will control the gate driver to drive the power MOSFET. The output voltage will feedback to EA and then feedback to current loop. Thanks to integrated oscillator, soft-start and over/under voltage protection functions, RT9261-36GX can provide precise voltage and current for the applications. ConclusionRT9261-36GX belongs to DC DC switching regulator which can provide low drop out voltage, high efficiency and small package size. It can use for a wide range of applications, such as battery charger, PC/Notebook adpater, digital picture frame and battery powered device. It also has hysteresis OVP to protect the input voltage and two pieces of comparators to control loop. Therefore, RT9261-36GX can provide precise voltage and current for the applications.

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