rt9221 ETC-unknow, rt9221 Datasheet
rt9221
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rt9221 Summary of contents
Page 1
... Programmable Synchronous PWM Buck Converter with 1.5V/2.5V Dual Low Dropout Linear Regulator Controller General Description The RT9221 integrates a PWM controller and two low-dropout linear regulators into a single chip. The PWM controller provides the CPU core voltage controlled by a 5-bit DAC and the linear section regulates power for GTL bus, clock driver or other circuits on motherboards ...
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... DH Source DH Sink DL Source DL Sink OVP Threshold Voltage OVP Source Current Power Good Threshold Voltage Linear Sections Quiescent Current Output Voltage (LDO1 RT9221) Output Voltage (LDO2 RT9221) Gain ( Load Regulation Line Regulation Note: (1) See output voltage table. www.richtek-ic.com.tw 2 Symbol Test Conditions ...
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... VCC CSN CSP CURRENT LIMIT _ 70mV R Q DAC S OSCILLATOR 200KHz ERROR AMP _ _ GND LINEAR 1.265V CONTROLLER CONTROLLER REF 2.5V LDOV SHDN BSTH LEVEL SHIFT DH AND DRIVER PGNDH SHOOT- THROUGH CONTROL BSTL DRIVER DL PGNDL LINEAR 1.5V GATE2 LDOS2 GND www.richtek-ic.com.tw RT9221 3 ...
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... RT9221 Pin Description Pin No. Pin Name Pin Function 1 GND Small signal analog and digital ground 2 GATE1 LDO1 gate drive output 3 LDOS1 LDO1 sense input 4 LDOS2 LDO2 sense input 5 VCC Input voltage 6 OVP High signal out if V (1) 7 PGOOD Open collector logic output; High if V ...
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... RT9221 Min Typ Max 1.287 1.300 1.313 1.336 1.350 1.364 1.386 1.400 1.414 1.435 1.450 1.465 1.485 1.500 1.515 1.534 1.550 1 ...
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... VID3 BSTH 11 16 SHDN GND PGNDH 12 13 PGNDL GATE2 BSTL 23 2 GATE1 LDOV 4 3 LDOS2 LDOS1 RT9221 R8 5Ω Q4 RFD3055 + C12 C11 1000µF 0.1µ 2.32K 1.0K 0.1µF PHB83N03LT Q1 R6 5mΩ L1 4µ 0.1µF PHB95N03LT 1500µFx4 ...
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... Dimensions In Millimeters Min Max 15.189 15.596 7.391 7.595 2.362 2.642 0.330 0.508 1.194 1.346 0.229 0.330 0.102 0.305 10.008 10.643 0.381 1.270 RT9221 Dimensions In Inches Min Max 0.598 0.614 0.291 0.299 0.093 0.104 0.013 0.020 0.047 0.053 0.009 0.013 0.004 ...
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... RT9221 RICHTEK TECHNOLOGY CORP. Headquarter 6F, No. 35, Hsintai Road, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5510047 Fax: (8863)5537749 www.richtek-ic.com.tw 8 RICHTEK TECHNOLOGY CORP. Taipei Office (Marketing) 8F-1, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)89191466 Fax: (8862)89191465 Email: marketing@richtek-ic.com.tw ...