(Hong Kong)
Product Summary
The RT9203 is a dual-output power controller 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 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 also features over voltage protection (OVP) and under voltage lock-out (UVLO).
Parametrics
RT9203 absolute maximum ratings: (1)Supply Voltage VCC: 7V; (2)BOOT & UGATE to GND: 19V; (3)Input, Output or I/O Voltage: GND.0.3V ~ 7V; (4)Power Dissipation, PD @ TA = 25℃, SOP-8: 0.625W; (5)Package Thermal Resistance, SOP-8, θJA: 160℃/W; (6)Ambient Temperature Range: 0℃ ~ +70℃; (7)Junction Temperature Range: -40℃ ~ +125℃; (8)Storage Temperature Range: -65℃ ~ +150℃; (9)Lead Temperature (Soldering, 10 sec.): 260℃.
Features
RT9203 features: (1)Operates at 5V; (2)0.8V Internal Reference; (3)Drives Two N-channel MOSFET; (4)Voltage Mode PWM Control; (5)Fast Transient Response; (6)Fixed 300kHz Oscillator Frequency; (7)Dynamic 0~100% Duty Cycle; (8)Internal PWM Loop Compensation; (9)Internal Soft-Start; (10)Adaptive Non-overlapping Gate Driver; (11)Over-voltage Protection Uses Lower MOSFET.
Diagrams
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 RT9202 |
Other |
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Negotiable |
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RT9202B |
Other |
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Negotiable |
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RT9204/RT9204A |
Other |
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Negotiable |
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RT9205 |
Other |
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Data Sheet |
Negotiable |
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RT9205A |
Other |
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Data Sheet |
Negotiable |
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RT9206 |
Other |
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Data Sheet |
Negotiable |
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