rt9262a ETC-unknow, rt9262a Datasheet
rt9262a
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rt9262a Summary of contents
Page 1
... 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. For RT9262A, a low battery detector with 0.86V detection voltage is included. RT9262/A are provided in SOP-8 packages. Ordering Information ...
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... V 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 1nF VDD ...
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V IN Chip Enable Input 3.3V V OUT + 10µF Fig. 3 Application Circuit with Zero-Output-Current Shutdown Mode Control OUT2 1. 10µF 680K 100µF 2. OUT2 1.3M ...
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... RT9262/A Pin Description Pin No. Pin Name RT9262 RT9262A 1 1 GND 2 2 EXT 3 -- LFB 4 -- LDOO -- 3 LBO -- 4 LBI VDD Absolute Maximum Ratings Supply Voltage LX Pin Switch Voltage LDO Output Voltage Other I/O Pin Voltages LX Pin Switch Current EXT Pin Driver Current ...
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... 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 Thermal Shutdown Hysterises * Note: The CE pin shall be tied to VDD pin and inhibit to act the ON/OFF state whenever the VDD pin voltage may reach to 5 ...
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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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Typical Operating Charateristics Efficiency V OUT No Load Current Refer to Application Circuit Fig.1 and Fig 1.2 1.5 Input Voltage (V) Start Up Voltage 1 25°C A ...
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... V OUT And trip point of the low battery detector is 0.86V at LBI pin of RT9262A. Feedback Loop Design Referring to application circuits Fig.1 to Fig.5, The selection of R1, R2, R3, and R4 based on the trade- off between quiescent current consumption and interference immunity is stated below: • Follow Eq.1 and Eq.2. ...
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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 ...
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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, ...