rt9201 Richtek Technology Corporation, rt9201 Datasheet
rt9201
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rt9201 Summary of contents
Page 1
... The RT9201 is a high-efficiency pulse-width-modulated (PWM) step-down DC-DC converter. Capable of delivering 600mA output current over a wide input voltage range from 2.5 to 5.5V, the RT9201 is ideally suited for portable electronic devices that are powered from 1-cell Li-ion battery or from other power sources within the range such as cellular phones, PDAs and handy-terminals ...
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... Suggested Inductors Component Series Supplier SH4018 ABC SR0302 TDK SLF6028 Coilcraft DO1606 www.richtek.com 2 Preliminary 7 8 PVDD VDD RT9201 GND PGND (pF (pF) 330 390k 10 33 390k 10 22 390k 10 15 390k 10 10 390k 10 5 ...
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... DS9201-04 August 2004 Preliminary OUT Part No. Capacitance (uF OSC & Shutdown Control Current Sense Slope Control Compensation Logic Zero PWM Detector Comparator Case Size 0805 1210 0805 1206 0805 0805 1206 PVDD Driver PGND Pin Function RT9201 LX www.richtek.com 3 ...
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... RT9201 Absolute Maximum Ratings Input Voltage ---------------------------------------------------------------------------------------------------------- 6V l Power Dissipation DFN 10L 3x3 --------------------------------------------------------------------------------------------------------- 2.1W Junction Temperature ---------------------------------------------------------------------------------------------- 150 C l Storage Temperature Range -------------------------------------------------------------------------------------- l Package Thermal Resistance l DFN 10L 3x3, --------------------------------------------------------------------------------------------------- 47 C/W JA Lead Temperature (Soldering, 10 sec.) ------------------------------------------------------------------------ 260 C l Storage Temperature Range -------------------------------------------------------------------------------------- l ESD Susceptibility (Note 2) ...
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... Exposure to absolute maximum rating conditions for extended periods may remain possibility to affect device reliability. Note 2. Devices are ESD sensitive. Handling precaution recommended. Note 3. The device is not guaranteed to function outside its operating conditions. Note 4. Guarantee the V range from 0.85V to V OUT DS9201-04 August 2004 Preliminary base on V >0. OUT IN RT9201 www.richtek.com 5 ...
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... RT9201 Typical Operating Characteristics Frequency vs. Temperature 820 810 800 790 780 770 760 750 740 730 -50 - Temperature ( C) Output Voltage vs. Temperature 1.806 1.804 1.802 1.800 1.798 1.796 1.794 1.792 1.790 -50 - Temperature ( C) Efficiency vs. Temperature 100 ...
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... Temperature ( C) Load Transient Response 100 V OUT 0 (mV) -100 500 I OUT (mA 3.3V 1.8V IN OUT 600mA OUT Time (500 s/Div) RT9201 3.3V OUT 500 600 700 800 1.8V OUT OUT 75 100 125 150 www.richtek.com 7 ...
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... RT9201 Load Transient Response 100 V OUT 0 (mV) -100 500 I OUT (mA 3.3V 1.8V IN OUT I = 300 to 0mA OUT Time (500 s/Div) Ripple & Noise OUT (mV) 0 500 I OUT (mA 3.3V 1. OUT I = 600mA OUT Time (500ns/Div) Load Transient Response 100 V OUT ...
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... OUT (V) 0 500 I IN (mA 5V OUT C = 1000pF ( OUT (V) 0 500 I IN (mA 5V 600mA OUT C = 1000pF SS RT9201 Soft Start = 3.3V OUT Time (200 s/Div) Soft Start = 3.3V OUT Time (500 s/Div) www.richtek.com 9 ...
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... RT9201 is a high-efficiency pulse-width-modulated (PW M) step-down DC-DC converter. Capable of delivering 600mA output current over a wide input voltage range from 2.5 to 5.5V, the RT9201 is ideally suited for portable electronic devices that are powered from 1-cell Li-ion battery or from other power sources within the range such as cellular phones, PDAs and handy- terminals ...
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... I OUT Figure 2 Over Current Protection The RT9201 continuously monitors the inductor current by sensing the voltage across the PMOSFET when it turns on. When the inductor current is higher than current limit threshold (1A typical), OCP activates and forces the PMOSFET turning off to limit inductor current cycle by cycle ...
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... Figure 4 to Figure 6 for reference PVDD EN 9 VDD RT9201 PGND 5 2 GND Figure 3. RT9201 Layout Diagram www.richtek.com 12 Preliminary ) f OSC OUT C7 C6 Figure 4. Top Layer Figure 5. Bottom Layer Figure 6. Silkscreen Layer DS9201-04 August 2004 ...
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... V-Type 10L DFN 3x3 Package 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.com RT9201 Dimensions In Inches Min Max 0.031 0.039 0.000 0.002 0.008 Ref. 0.007 ...