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RT9203

Richtek
Part Number RT9203
Manufacturer Richtek
Description Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller
Published Dec 26, 2013
Detailed Description Preliminary RT9203/A Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller General Description The RT9203...
Datasheet PDF File RT9203 PDF File

RT9203
RT9203

Overview
Preliminary RT9203/A Dual Regulators - Synchronous Buck PWM DC-DC and Linear Controller General Description The RT9203/A is a dual-output power controllers designed for high performance graphics cards and personal computers.
The IC integrates a synchronous buck controller, a linear controller and protection functions into a small 8-pin package.
The RT9203/A uses an internal compensated voltage mode PWM control for simplying design.
An internal 0.
8V reference allows the output voltage to be precisely regulated to meet low output voltage requirement.
A fixed 300kHz oscillation frequency reduces the component size for saving board area.
The RT9203/A also features over voltage protection (OVP) and under voltage lock-out (UVLO).
Features l l l l l l l l l l l l Operates at 5V 0.
8V Internal Reference Drives Two N-MOSFET Voltage Mode PWM Control Fast Transient Response Fixed 300kHz Oscillator Frequency Dynamic 0 to 100% Duty Cycle Internal PWM Loop Compensation Internal Soft-Start Adaptive Non-Overlapping Gate Driver Over-Voltage Protection Uses Lower MOSFET RoHS Compliant and 100% Lead (Pb)-Free Applications l l l l Ordering Information RT9203/A Package Type S : SOP-8 Operating Temperature Range P : Pb Free with Commercial Standard G : Green (Halogen Free with Commercial Standard) UVP : Hiccup Mode UVP : Latch Mode Note : RichTek Pb-free and Green products are : }RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.
}Suitable for use in SnPb or Pb-free soldering processes.
}100%matte tin (Sn) plating.
l l l l l PC Motherboard Cable Modems, Set-Top-Box, and DSL Modems DSP and Core Communications Processor Supplies Memory Power Supplies Personal Computer Peripherals Industrial Power Supplies 5V Input DC-DC Regulators Low Voltage Distributed Power Supplies Graphic Cards Pin Configurations (TOP VIEW) BOOT UGATE GND LGATE 2 3 4 8 7 6 5 FB FBL DRV VCC SOP-8 DS9203/A-10 March 2007 www.
richtek.
com 1 Free Datasheet http://www.
datasheet4u.
...


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