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ISL9021AIRUFZ-T Datasheet(PDF) 1 Page - Intersil Corporation |
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ISL9021AIRUFZ-T Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 12 page 1 250mA Single LDO with Low IQ, Low Noise and High PSRR LDO ISL9021A The ISL9021A is a single LDO, which provides high performance, low input voltage and high PSRR. It delivers guaranteed continuous 250mA load current and is stable with 1µF to 4.7µF of output capacitance (±30%) with an ESR range of 5m Ω to 400mΩ. The input voltage range for the ISL9021A is between 1.5V to 5.5V and the output voltage comes in many fixed voltage options with ±1.8% accuracy over-temperature, line and load ranges. The ISL9021A has typical PSRR of 75dB @ 10kHz and 50dB @ 1MHz. The reverse current protection feature prevents current from flowing back to the power source when the output voltage is pulled higher than the input. The ISL9021A is offered in tiny 4-bump 0.975mmx1.155mm WLCSP and 1.6mmx1.6mm 6 Ld µTDFN packages. Related Literature •See FN6867, ISL9021 “250mA Single LDO with Low IQ, Low Noise and High PSRR LDO” Features • High performance LDO with 250mA guaranteed continuous output current • Input voltage range: 1.5V to 5.5V • Output voltage range: 1.2V to 3.3V • High PSRR: 75dB @ 10kHz, 50dB @ 1MHz • Low quiescent current: 35µA • Dropout voltage: <150mV @ 250mA • Stable with 1µF to 4.7µF output capacitance (±30%) with an ESR range of 5m Ω to 400mΩ • ±1.8% output accuracy over-temperature/load/line • Soft-start limits input current surge during enable • Current limit and overheat protection • -40°C to +85°C operating temperature range • Available in 0.975mmx1.155mm 4-bump WLCSP package and 1.6mmx1.6mm 6 Ld µTDFN • Pb-free (RoHS compliant) Applications • PDAs, cell phones and smart phones • Portable instruments, MP3 players • Handheld devices including medical handheld C1, C2: 1µF X5R CERAMIC CAPACITOR ISL9021A VIN GND VO VIN (1.5V TO 5.5V) VOUT C1 C2 EN ENABLE OFF ON FIGURE 1. TYPICAL APPLICATION December 20, 2012 FN7845.3 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas Inc. 2011, 2012. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. |
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