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ISL9000AIRCJZ Datasheet(PDF) 1 Page - Renesas Technology Corp |
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ISL9000AIRCJZ Datasheet(HTML) 1 Page - Renesas Technology Corp |
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1 / 14 page  FN6391 Rev 3.00 Page 1 of 14 October 15, 2015 FN6391 Rev 3.00 October 15, 2015 ISL9000A Dual LDO with Low Noise, Very High PSRR and Low IQ DATASHEET ISL9000A is a high performance dual LDO capable of sourcing 300mA current from each output. It has a low standby current and very high PSRR and is stable with output capacitance of 1µF to 10µF with ESR of up to 200m . The device integrates an individual Power-On-Reset (POR) function for each output. The POR delay for VO2 can be externally programmed by connecting a timing capacitor to the CPOR pin. The POR delay for VO1 is internally fixed at approximately 2ms. A reference bypass pin is also provided for connecting a noise filtering capacitor for low noise and high- PSRR applications. The quiescent current is typically only 42µA with both LDO’s enabled and active. Separate enable pins control each individual LDO output. When both enable pins are low, the device is in shutdown, typically drawing less than 0.1µA. Several combinations of voltage outputs are standard. Output voltage options for each LDO range from 1.5V to 3.3V. Other output voltage options may be available upon request. Features • Integrates two 300mA high performance LDOs • Excellent transient response to large current steps • ±1.8% accuracy over all operating conditions • Excellent load regulation: < 0.1% voltage change across full range of load current • Low output noise: typically 30µVRMS @ 100µA (1.5V) • Very high PSRR: 90dB @ 1kHz • Extremely low quiescent current: 42µA (both LDOs active) • Wide input voltage capability: 2.3V to 6.5V • Low dropout voltage: typically 200mV @ 300mA • Stable with 1µF to 10µF ceramic capacitors • Separate enable and POR pins for each LDO • Soft-start and staged turn-on to limit input current surge during enable • Current limit and overheat protection • Tiny 10 Ld 3mmx3mm DFN package • -40°C to +85°C operating temperature range • Pb-free (RoHS compliant) Applications • PDAs, Cell Phones and Smart Phones • Portable Instruments, MP3 Players • Handheld Devices including Medical Handheld FIGURE 1. TYPICAL APPLICATION C1, C4, C5: 1µF X5R CERAMIC CAPACITOR C2: 0.1µF X7R CERAMIC CAPACITOR ISL9000A VIN EN1 EN2 CBYP CPOR VO1 VO2 POR2 POR1 GND 10 9 8 7 6 1 2 3 4 5 VIN (2.3 TO 6.5V) ENABLE1 ENABLE2 VO1 VO2 RESET1 RESET2 C1 C2 C3 C4 C5 C3: 0.01µF X7R CERAMIC CAPACITOR OFF ON OFF ON (200ms DELAY, C3 = 0.01µF) (2ms DELAY) VO2 TOO LOW VO2 OK VO1 TOO LOW VOUT1 OK |
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