RT8237FZQW

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RT8237FZQW

IC REG CTRLR BUCK PWM WDFN-10

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Spécifications

Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
OutputType Transistor Driver
Function Step-Down
OutputConfiguration Positive
Topology Buck
NumberofOutputs 1
OutputPhases 1
Voltage-Supply(Vcc/Vdd) 4.5V ~ 26V
Frequency-Switching 290kHz ~ 430kHz
SynchronousRectifier Yes
ClockSync No
ControlFeatures Current Limit, Enable, Phase Control, Power Good, Soft Start
OperatingTemperature -40°C ~ 85°C (TA)
MountingType Surface Mount
Package/Case 10-WFDFN Exposed Pad

Vue d'ensemble

Description

The RT8237FZQW is a high-efficiency, synchronous step-down DC-DC converter designed by Richtek. It is commonly used in applications requiring power regulation, such as in laptops, desktops, and other electronic devices. The chip integrates an advanced constant on-time control mode, which provides fast transient response and simplifies loop stabilization. It supports a wide input voltage range and delivers a stable output voltage, making it suitable for various consumer electronics.
Key features of the RT8237FZQW include adjustable output voltage, high efficiency at light load through proprietary light load operation, and excellent line and load transient responses. The device includes protection features such as over-voltage protection, under-voltage protection, current limit protection, and thermal shutdown. It also supports power-saving modes to enhance energy efficiency.
The RT8237FZQW is packaged in a compact WQFN package, which is advantageous for space-constrained applications. Its design flexibility and robust performance make it a popular choice in power management solutions. For detailed specifications, consulting the official datasheet from Richtek is recommended.

Features

The RT8237FZQW is a high-efficiency, synchronous step-down DC-DC converter designed for portable electronic devices. Key features include:
- Input Voltage Range: It supports a wide input voltage range, typically from 4.5V to 24V, making it versatile for various applications.
- Output Voltage: The converter can regulate output voltages as low as 0.6V, suitable for low-voltage digital ICs.
- Current Capability: It can deliver output currents up to 3A, supporting moderate power demands.
- Switching Frequency: The device operates at a fixed frequency, often in the range of around 500kHz to 1MHz, which helps in reducing external component size.
- Efficiency: High efficiency, often over 90%, achieved through synchronous rectification, reducing power loss.
- Protection Features: Includes over-current, over-voltage, under-voltage lockout, and thermal shutdown protections to ensure reliable operation.
- Package: Available in compact QFN packages, ideal for space-constrained designs.
- Additional Features: Supports adjustable output voltage and includes soft-start functionality to prevent inrush current during startup.
These features make the RT8237FZQW suitable for use in battery-powered devices, portable electronics, and other applications requiring efficient power management in a compact form factor.

Package

The RT8237FZQW is typically available in a WQFN (Quad Flat No-leads) package, which is known for its compact size and efficient thermal performance.

Pinout

The RT8237FZQW is a DC-DC buck converter designed for power management in various electronic devices. It typically comes in a WQFN (Quad Flat No-Lead) package with a pin count of 24.
The key functions of the RT8237FZQW include:
1. Switching Regulator: It provides step-down (buck) conversion to efficiently regulate the output voltage from a higher input voltage source.
2. Synchronous Rectification: Enhances efficiency by using internal MOSFETs for synchronous rectification.
3. Feedback Control: Ensures stable output voltage by comparing the output voltage with a reference voltage and adjusting the duty cycle of the switching transistors accordingly.
4. Protection Features: Includes over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), and thermal shutdown to safeguard the converter and connected loads.
5. Power Good Indicator: Provides a signal indicating whether the output voltage is within the specified range, ensuring reliable operation.
The RT8237FZQW is suitable for applications requiring efficient power conversion with precise voltage regulation, such as in laptops, desktop computers, and other portable electronics.

Manufacturer

The RT8237FZQW is manufactured by Richtek Technology Corporation. Richtek is a company that specializes in the design and production of analog integrated circuits (ICs) and power management solutions. They provide a wide range of products, including voltage regulators, power converters, and LED drivers, catering to various industries such as consumer electronics, telecommunications, and computing. Richtek is known for delivering high-performance and innovative power management solutions that help enhance the efficiency and functionality of electronic devices.

Application

The RT8237FZQW is a synchronous step-down converter, primarily used in applications requiring efficient power conversion. It is commonly utilized in notebook computers, motherboards, graphic cards, and other portable electronic devices that need stable and efficient voltage regulation. Its compact design and high efficiency make it suitable for applications where space and power efficiency are critical.

Equivalent

The RT8237FZQW is a DC-DC step-down converter typically used in power management applications. Equivalent products might include similar step-down (buck) converters from other manufacturers like the TPS563200 from Texas Instruments, the LM26001 from Texas Instruments, and the MP2307 from MPS. When selecting an equivalent, ensure that key specifications such as input voltage range, output current, switching frequency, and package type match your requirements. Always refer to datasheets for confirmation.

Expédition

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Référence des frais d'expédition (DHL/FedEx):

DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.

FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

Paiements

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