rt9262 ETC-unknow, rt9262 Datasheet
rt9262
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rt9262 Summary of contents
Page 1
... Both internal 2A switch and driver for driving external power devices (NMOS or NPN) are provided. A 300mA LDO is included in RT9262 to provide a secondary low noise output as well as an output current stop in the shutdown mode. Similarly LDO output voltage can be set with 2 external resistors ...
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... RT9262ACS Typical Application Circuit OUT2 1. 10µF 680K Fig. 1 RT9262 Typical Application for Portable Instruments below 400mA V IN Low Battery Warning Output (Open Collector) Fig. 2 RT9262A Typical Application for Portable Instruments below 400mA www.richtek.com 2 Preliminary VDD RT9262 CE EXT ...
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... LDOO EXT 1nF Fig Output Current Application L1 10µH VDD RT9262 CE EXT 1nF 0.05 ~0.1Ω RT9262/A 100µF L1 100pF R1 4.7µH 1. 980K 1µF 100µF 100µ 1.6M 4.7µH 100pF ...
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... Input pin of the built-in low voltage detector Trip point = 0.86V Feedback input pin Internal reference voltage for the error amplifier is 1.25V. Input positive power pin of RT9262/A Pin for switching Chip enable RT9262/A gets into shutdown mode when CE pin set to low. = 25°C -0. -0.3V to (VDD + 0.8V) -0.3V to (VDD + 0.3V) -0.3V to (VDD + 0.3V) 2.5A ...
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... Switching Rate Maximum Duty LX ON Resistance Current Limit Setting EXT ON Resistance to VDD EXT ON Resistance to GND Line Regulation Load Regulation LDO PMOS ON Resistance RT9262 LDO Drop Out Voltage RT9262 LBO ON Resistance RT9262A CE Pin Trip Level Temperature Stability for FB, LFB, LBI Thermal Shutdown ...
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... CE VDD LBI LBO Q2 NMOS FB VDD CE www.richtek.com 6 Preliminary VDD RT9262 _ 0.86V _ Loop Control Circuit 1.25V R2 Shut Down Q3 Over Temp. NMOS Detector RT9262A _ + 0.86V _ Loop Control Circuit 1.25V R2 Shut Down Q3 Over Temp. NMOS Detector EXT LX Q1 NMOS R1 GND EXT LX Q1 NMOS R1 GND DS9262/A-04 August 2002 ...
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... LOAD LOAD DS9262/A-04 August 2002 Preliminary = 25 ° 3. 25° 3.3V OUT 2 2 100 (mA) RT9262/A Efficiency V = 5.0V; T OUT No Load Current 140 120 100 Refer to Application Circuit Fig.1 and Fig 1.2 1.5 2 Input Voltage (V) Start Up Voltage 1 ...
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... Preliminary PRECAUTION 1: Improper probing LFB pin will cause fluctuation can damage RT9262/A and system chips because V OUT1 may drastically rise to an over-rated level due to unexpected interference or parasitics being added to of RT9262) can be FB pin. PRECAUTION 2: Disconnecting R1 or short circuit Eq ...
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... DS9262/A-04 August 2002 Preliminary First Layer RT9262/A Second Layer (Full GND Plane) RT9262/A www.richtek.com 9 ...
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... RT9262/A Package Information J B Symbol www.richtek.com 10 Preliminary Dimensions In Millimeters Min Max 4.801 5.004 3.810 3.988 1.346 1.753 0.330 0.508 1.194 1.346 0.178 0.254 0.102 0.254 5.791 6.198 0.406 1.270 8–Lead SOP Plastic Package H M Dimensions In Inches ...
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... DS9262/A-04 August 2002 Preliminary RT9262/A www.richtek.com 11 ...
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... RT9262/A RICHTEK TECHNOLOGY CORP. Headquarter 5F, No. 20, Taiyuen Street, Chupei City Hsinchu, Taiwan, R.O.C. Tel: (8863)5526789 Fax: (8863)5526611 www.richtek.com 12 Preliminary 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 DS9262/A-04 August 2002 ...