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RT7290A

Richtek
Part Number RT7290A
Manufacturer Richtek
Description Synchronous Buck Converter
Published Mar 19, 2020
Detailed Description ® RT7290A 6A, 23V, 500kHz, ACOTTM Synchronous Buck Converter with LDO for System 3.3V General Description The RT7290A ...
Datasheet PDF File RT7290A PDF File

RT7290A
RT7290A

Overview
® RT7290A 6A, 23V, 500kHz, ACOTTM Synchronous Buck Converter with LDO for System 3.
3V General Description The RT7290A is a synchronous Buck converter with Advanced Constant On-Time (ACOTTM) mode control.
The main control loop of RT7290A uses an ACOTTM mode control which provides a very fast transient response with no external compensators.
The RT7290A operates from 5V to 23V input voltage, provides a 3.
3V LDO and a 300kHz CLK to drive an external charge pump.
OCP, UVP and OVP are included in the RT7290A.
This IC also provides a 1.
5ms internal soft-start function and an open-drain power good indicator.
Applications  Laptop Computers  Tablet PCs  Networking Systems  Servers  Personal Video Recorders  Flat Panel Television and Monitors  Distributed Power Systems Features  5V to 23V Input Voltage Range  PWM Frequency Fixed 500kHz  ACOTTM Mode Performs Fast Transient Response  Integrated MOSFETs  31mΩ of High-Side MOSFET  20mΩ of Low-Side MOSFET  Support Output MLCC Stable  Internal Soft-Start (1.
5ms typ)  Built-in OVP/UVP/OCP  Power Good Indicator  Fixed 300kHz VCLK to Support Charge Pump  Individual EN for PWM and LDO  Thermal Shutdown Marking Information 3B=YM DNN 3B= : Product Code YMDNN : Date Code Simplified Application Circuit VSYS D1 C1 D2 C2 D3 C3 D4 C4 VCP C5 VIN CIN VLDO VSYS CLDO VIN CLK BOOT RT7290A EN SW RB CB L LDO VOUT PGND VBYP PGOOD ENLDO VCC AGND RPGOOD CVCC VOUT COUT VCC Copyright ©2014 Richtek Technology Corporation.
All rights reserved.
DS7290A-01 January 2015 is a registered trademark of Richtek Technology Corporation.
www.
richtek.
com 1 RT7290A Ordering Information RT7290A Package Type QUF : UQFN-16L 3x3 (FC) (U-Type) Note : Lead Plating System G : Green (Halogen Free and Pb Free) Richtek products are :  RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020.
 Suitable for use in SnPb or Pb-free soldering processes.
Pin Configurations (TOP VIEW) AGND EN EN...


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