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AS3606 Datasheet(PDF) 14 Page - ams AG |
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AS3606 Datasheet(HTML) 14 Page - ams AG |
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14 / 71 page  www.austriamicrosystems.com Revision 1.03 13 - 70 AS3606 AS3607 2v2 Data Sheet - D e t a i l e d D e s c r i p t i o n - P o w e r M anage ment F uncti ons 8.1.2 LDO 1, LDO2, LDO3 & LDO4 These LDOs can be used to generate the periphery voltage for the digital processor or other external components (e.g. ext. DAC, USB-PHY, SD- Cards, NAND-Flashes, FM-Tuner …). LDO4 is only available on AS3607. Input Voltage VSUP5 for LDO3 and LDO4, and VSUP4 for LDO2 and LDO1 Output Voltage is PVDD1, PVDD2, PVDD3 & PVDD4 (1.2V to 3.5V) Default value at start-up is defined by the boot ROM, when the boot ROM is not programmed the LDOs will not start-up Driver strength: 150mA, can be programmed to 250mA 8.1.3 Parameter VSUPx=3.6V, TA= 25ºC, unless otherwise specified. Table 4. LDO Parameter Symbol Parameter Condition Min Typ Max Unit RON On resistance 1 Ω PSRR Power supply rejection ratio f=1kHz 70 dB f=100kHz 40 IOFF Shut down current 100 nA IVDD Supply current without load 50 μA low power enabled, without load 32 μA Noise Output noise 10Hz < f < 100kHz 50 µVrms tstart Startup time 200 µs Vout_tol Output voltage tolerance minimum ±50mV -2.5% 2.5% mV VLineReg Line regulation Static <1 mV Transient; Slope: tr=10µs <10 VLoadReg Load regulation Static <1 mV Transient; Slope: tr=10µs <10 ILIMIT Current limitation default 190 mA has to be enabled via register 350 |
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