RT8237EZQW

RT8237EZQW

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Richtek USA Inc.
RT8237EZQW
IC REG CTRLR BUCK PWM WDFN-10
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$0.14

Price update:a months ago
Available in stock: 51000
45
Serves customers in 45 countries
1000+
Worldwide Manufacturers
$140M
$140M Growth in 5 Years
50.0M+
50M Parts Shipped in 5 Years
Richtek USA Inc.

Richtek USA Inc.

Founded in 1998, Richtek is one of the leading global analog semiconductor companies in design and development of comprehensive power management ICs for consumer electronics, computers, communications equipment, industrial and automotive products. After the completion of merger with MediaTek in 2016, Richtek has broadened the product range for more diverse applications. Richtek not only delivers the industry's innovative power management ICs, but also provides the complete system design in service and support. With Richtek as "Your Power Partner" you can spend less time trouble shooting issues with power management and more time working on your next big product.

View All Product from Richtek USA Inc.
RT8237EZQW Products

The RT8237EZQW PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM supplies in notebook computers.The constant on-time PWM control scheme handles wide input/output voltage ratios with ease and provides 100ns "instant-on" response to load transients while maintaining a relatively constant switching frequency.The RT8237EZQW achieves high efficiency at a reduced cost by eliminating the current sense resistor found in traditional current mode PWMs. Efficiency is further enhanced by its ability to drive very large synchronous rectifier MOSFETs and enter diode emulation mode at light load condition. The Buck conversion allows this device to directly step down high voltage batteries at the highest possible efficiency. The pre-set frequency selections minimize design effort required for new designs. The RT8237EZQW is intended for CPU core, chipset, DRAM, or other low voltage supplies as low as 0.7V. The RT8237EZQW is available in the WDFN-10L 3x3 package.

Feature

  • Wide Input Voltage Range : 4.5V to 26V
  • Output Voltage Range : 0.7V to 3.3V
  • Built-in 0.5% 0.7V Reference Voltage
  • Quick Load-Step Response within 100ns
  • 4700ppm/°C Current Source for Current Limit RDS(ON)
  • Adjustable Current Limit with Low Side MOSFET
  • 4 Selectable Frequency Setting
  • Soft-Start Control
  • Drives Large Synchronous-Rectifier FETs
  • Integrated Boot Switch
  • Built-in OVP/OCP/UVP
  • Thermal Shutdown
  • Power Good Indicator
  • RoHS Compliant and Halogen Free

Applications

  • Notebook Computers
  • CPU Core Supply
  • Chipset/RAM Supply as Low as 0.7V
  • Generic DC/DC Power Regulator
  • Notebooks

Product Attributes

TYPE DESCRIPTION Select all
Product Status Active
Clock Sync Yes
Synchronous Rectifier Yes
Frequency - Switching 290kHz ~ 430kHz
Voltage - Supply (Vcc/Vdd) 4.5V ~ 26V
Output Phases 1
Supplier Device Package 10-WDFN (3x3)
Number of Outputs 1
Package / Case 10-WFDFN Exposed Pad
Topology Buck
Mounting Type Surface Mount
Output Configuration Positive
Operating Temperature -40°C ~ 85°C (TA)
Function Step-Down
Control Features Current Limit, Enable, Phase Control, Power Good, Soft Start
Output Type Transistor Driver
Package Tape & Reel (TR)

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$0.14

Price update:a months ago
Available in stock: 51000
Richtek USA Inc.

Richtek USA Inc.

Founded in 1998, Richtek is one of the leading global analog semiconductor companies in design and development of comprehensive power management ICs for consumer electronics, computers, communications equipment, industrial and automotive products. After the completion of merger with MediaTek in 2016, Richtek has broadened the product range for more diverse applications. Richtek not only delivers the industry's innovative power management ICs, but also provides the complete system design in service and support. With Richtek as "Your Power Partner" you can spend less time trouble shooting issues with power management and more time working on your next big product.

View All Product from Richtek USA Inc.

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