ChipApex | Global Electronic Components Supplier
SEARCH
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC REG DL BUCK/LNR 500KHZ 23QFN
- Series：-
- Mfr：Richtek USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Topology：Step-Down (Buck) Synchronous (1), Linear (LDO) (1)
- Number of Outputs：2
- Frequency - Switching：500kHz
- Voltage/Current - Output 1：Fixed, Fixed, 5.1V, 8A
- Voltage/Current - Output 2：Fixed, Fixed, 5V, 100mA
- Voltage/Current - Output 3：-
- w/LED Driver：No
- w/Supervisor：No
- w/Sequencer：No
- Voltage - Supply：5.2V ~ 23V
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：23-PowerUFQFN
- Supplier Device Package：23-UQFN (FC) (3x3)
- Grade：-
- Qualification：-
Download product information
Overview
The RT6338CHGQUF is a synchronous ACOT buck converter from Richtek, featuring an input voltage range of 5.2V to 23V and a fixed 5.1V output. It delivers up to 8A with a switching frequency of 500kHz in a 23-UQFN (FC) 3x3 package. The device supports -40°C to 125°C operation, includes power good signaling, and offers protection against overvoltage, undervoltage, and thermal faults.
Feature Summary
- Implements ACOT control architecture for fast transient response and nearly constant operating frequency across varying conditions.
Applications
- Portable computers
- Tablets
- Network equipment
- Servers
Procurement Notes
Verify the suffix CHGQUF corresponds to the fixed 5.1V output variant within the RT6338 series. Confirm the 23-UQFN footprint matches the design layout. Ensure the 5.2V minimum input voltage aligns with system requirements. Check RoHS3 compliance status before finalizing procurement documentation.
Selection Notes
Select this component when a stable 5.1V rail is required at high currents. The ACOT topology simplifies compensation compared to traditional voltage mode controllers. Consider the 500kHz frequency for balancing efficiency and filter size. Verify that the 5.2V input threshold does not conflict with brown-out scenarios.
Part Context
Part of the RT6338 family offering 8A synchronous buck solutions. Distinguished by its specific fixed output voltage configuration. Utilizes Richtek's proprietary ACOT technology for enhanced stability and performance in compact power delivery systems.
Replacement Considerations
RT6338AHGQUF provides similar specifications but features an adjustable output voltage range instead of a fixed 5.1V. Designers must adjust feedback resistor networks if substituting with the adjustable variant.
FAQ
What control architecture does the RT6338CHGQUF use?
It utilizes the ACOT (Advanced Constant On-Time) modified fixed on-time control architecture.
Does the RT6338CHGQUF include a Power Good signal?
Yes, the device provides a Power Good output to facilitate timing control and system monitoring.
