RT9204AGS RICHTEK [Richtek Technology Corporation], RT9204AGS Datasheet
RT9204AGS
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RT9204AGS Summary of contents
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Dual Regulators - Standard Buck PWM DC-DC and Linear Controller General Description The RT9204 dual power controllers designed for high performance graphics cards and computer applications. The IC integrates a standard buck controller, a linear regulator driver and ...
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RT9204/A Typical Application Circuit V AUX 3.3V Q1 2SD1802 V OUT2 1.6V R4 100 C6 R5 220uF C5 100 1uF 5V V AUX C7 3.3V 1uF Q1 Suggest use Transistor 2SD5706 V OUT2 1.6V R4 100 C6 220uF R5 100 ...
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C VCC 1uF Function Block Diagram VCC DRV LDO FBL 0.8 Reference 0.8V FB GND DS9204/A-08 March 2007 Preliminary C OUT 1000uF GND C BOOT BOOT VCC 0.1uF RT9203/A Layout Placement Layout Notes 1. Put C & ...
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RT9204/A Functional Pin Description GND (Pin 1) Signal and power ground for the IC. All voltage levels are measured with respect to this pin. VCC (Pin 2) This is the main bias supply for the RT9204/A. This pin also provides ...
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Absolute Maximum Ratings Supply Voltage VCC ------------------------------------------------------------------------------------------------ 7V l BOOT & UGATE to GND ------------------------------------------------------------------------------------------- 15V l Input, Output or I/O Voltage --------------------------------------------------------------------------------------- GND-0. Power Dissipation 25° SOP-8 ------------------------------------------------------------------------------------------------------------------ 0.625W ...
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RT9204/A Parameter Protection FB Over-Voltage Trip FB & FBL Under-Voltage Trip Soft-Start Interval SD Pin Threshold SD pin Sink Current www.richtek.com 6 Preliminary Symbol Test Conditions FB Rising FB & FBL Falling ...
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Typical Operating Characteristics Power 2.2V OUT Time (1ms/Div) Load Transient UGATE V OUT Time (5us/Div) Short Hiccup (Latch Mode 2.2V OUT Time (5ms/Div) DS9204/A-08 March 2007 Preliminary ...
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RT9204/A Reference vs. Temperature 0.803 0.802 0.801 0.800 0.799 0.798 0.797 0.796 -50 0 Temperature Oscillator Frequency vs. Temperature 315 310 305 300 295 290 285 280 275 270 -50 0 Temperature www.richtek.com 8 Preliminary 50 100 150 ( C) ...
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Application Information The RT9204/A operates at either single 5V power supply with a bootstrap UGATE driver or 5V/12V dual-power supply form the ATX SMPS. The dual- power supply is recommended for high current application, the RT9204/A can deliver higher gate ...
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RT9204/A COUNT = 1 COUNT = OVERLOAD APPLIED T0T1 T2 TIME Figure 5 Inductor Selection The RT9204/A was designed for V application mainly. Figure 6 shows the typical topology and waveforms of step-down converter. The ripple ...
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Input / Output Capacitor High frequency/long life decoupling capacitors should be placed as close to the power pins of the load as physically possible. Be careful not to add inductance to the PCB trace could eliminate the performance ...
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RT9204/A Reference Voltage Because RT9204/A use a low 35dB gain error amplifier, shown in Figure 10. The voltage regulation is dependent on V & V setting. The FB reference voltage of 0.8V IN OUT were trimmed ...
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The power components and the PWM controller should be placed firstly. Place the input capacitors, especially the high-frequency ceramic decoupling capacitors, close to the power switches. Place the output inductor and output capacitors between the MOSFETs and the load. Also ...
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RT9204/A Outline Dimension Symbol Richtek Technology Corporation Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 www.richtek.com 14 Preliminary ...