RT9167-33GB Richtek USA Inc, RT9167-33GB Datasheet
RT9167-33GB
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RT9167-33GB Summary of contents
Page 1
... The RT9167 300mA/500mA low dropout and low noise micropower regulator suitable for portable applications. The output voltages range from 1. 100mV increments and 2% accuracy. The RT9167/A is designed for use with very low ESR capacitors. The output remains stable even with 1μF ceramic output capacitor. ...
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... Functional Pin Description Pin Name Pin Function VIN Power Input Voltage GND Ground EN Chip Enable (Active High) BP Reference Noise Bypass VOUT Output Voltage Function Block Diagram EN BP www.richtek.com 2 RT9167 OUT 1µF GND Chip Enable EN BP Shutdown and Logic Control VREF + MOS Driver ...
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... RT9167 Current Limit RT9167A RT9167/A Quiescent Current RT9167/A RT9167A RT9167/A (2) Dropout Voltage RT9167 3.0V OUT(Normal) RT9167/A Version) RT9167A Line Regulation RT9167/A Load Regulation RT9167A EN Input High Threshold EN Input Low Threshold EN Bias Current Shutdown Supply Current Thermal Shutdown Temperature DS9167/A-28 September 2010 = 25° ...
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... RT9167/A Parameter Output Noise Ripple Rejection Note 1. θ is measured in the natural convection JEDEC 51-3 thermal measurement standard. Pin 1 of SOP-8 and pin4 of SOT-23-5 packages are the case position for θ measurement. JA Note 2. The dropout voltage is defined as V www.richtek.com 4 Symbol Test Conditions ...
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... Load Current (A) Current Limit vs. Temperature 900 800 700 600 500 400 300 200 -50 - Temperature V = 3.3V OUT 75 100 125 150 ( C) ° 125°C 25°C -40°C RT9167A V = 3.3V OUT RT9167A V = 3.3V OUT 75 100 125 ( C) ° www.richtek.com 5 ...
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... RT9167/A Load Transient Response 10μ 1μF 40 OUT C = 10nF -20 ≈ -50 Time (50 Line Transient Response 150 OUT C = 1μF 100 OUT C = 10nF -50 ≈ Time (1ms/Div) Line Transient Response 150 OUT C = 4.7μF 100 OUT C = 10nF -50 ≈ Time (500μs/Div) www.richtek.com OUT ≈ μ ...
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... PSRR OUT 100 1K 10 100 1000 Frequency (kHz) DS9167/A-28 September 2010 = 3.3V 1mA LOAD = 4.7μ 10nF OUT BP 10K 100K 1M 10000 100000 1000000 RT9167/A www.richtek.com 7 ...
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... Like any low-dropout regulator, the external capacitors used with the RT9167/A must be carefully selected for regulator stability and performance. Using a capacitor whose value is > 1μF on the RT9167/A input and the amount of capacitance can be increased without limit. The input capacitor must be located a distance of not more than 0.5" ...
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... ON or OFF state (see Electrical Characteristics). The ON/OFF signal may come from either CMOS output open-collector output with pull- up resistor to the RT9167/A input voltage or another logic supply. The high-level voltage may exceed the RT9167/A input voltage, but must remain within the absolute maximum ratings for the EN pin ...
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... The thermal sensor will turn the pass transistor on again after the IC's junction temperature cools by 10°C, resulting in a pulsed output during continuous thermal-overload conditions. Thermal-overloaded protection is designed to protect the RT9167/A in the event of fault conditions. Do not exceed the absolute maximum junction-temperature rating 150°C for continuous operation. The output ...
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... JC resistance provided by IC manufacturer. Therefore it's easy to estimate the junction temperature by any condition. For example, how to calculate the junction temperature of RT9167A-28CB SOT-23-5 package use input voltage output current I IN the case temperature (pin 4 of SOT-23-5 package 70° ...
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... RT9167/A Outline Dimension Symbol www.richtek.com Dimensions In Millimeters Min Max 0.889 1.295 0.000 0.152 1.397 1.803 0.356 0.559 2.591 2.997 2.692 3.099 0.838 1.041 0.080 0.254 0.300 0.610 SOT-23-5 Surface Mount Package H L Dimensions In Inches Min Max 0.035 0.051 0.000 0.006 0.055 ...
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... SOP Plastic Package Richtek Technology Corporation Taipei Office (Marketing) 8F, No. 137, Lane 235, Paochiao Road, Hsintien City Taipei County, Taiwan, R.O.C. Tel: (8862)89191466 Fax: (8862)89191465 Email: marketing@richtek.com RT9167 Dimensions In Inches Min Max 0.189 0.197 0.150 0.157 0.053 ...