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STPMIC25APQR Datasheet(PDF) 25 Page - STMicroelectronics |
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STPMIC25APQR Datasheet(HTML) 25 Page - STMicroelectronics |
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25 / 145 page  4 Power regulator descriptions 4.1 Overview The STPMIC25 has a large input voltage range from 2.8 V to 5.5 V to supply applications typically from a 5 V DC wall-adaptor or from a 1-cell 3.6 V Li-Ion/Li-PO battery. The STPMIC25 provides all the regulators needed to power supply a complete application: • 8 LDOs + 1 reference voltage LDO for DDR memories • 7 step-down (buck) converters Table 18. General description Regulator Output voltage (V) Programming step (mV) Rated output current (mA) Application use LDO1 1.8 - 20 VDDA18AON LDO2, LDO5, LDO6, LDO7 0.9 V to 4.0 V bypass mode 100 400/200/100/50 General purpose (eMMC, DDR4 VPP, SD card, LCD camera) LDO8 0.9 V to 4.0 V bypass mode 100 150 General purpose (low voltage peripheral) LDO3 normal mode 0.9 V to 4.0 V 100 120 General purpose/lpDDR VDD1 LDO3 sink-source mode VREFDDR - +/-120 (rms) +/-230 (peak) DDR3L/DDR4 terminations (VTT) LDO3 bypass mode VINLDO3 - 80 lpDDR VDD1 LDO4 3.3 - 40 VDD33USB VDD33UCPD VREFDDR VOUT6 / 2 - +/-5 (rms) +/-10 (peak) Reference voltage for DDR memories BUCK1, BUCK6 0.5 V to 1.5 V 10 2000, 1500, 1000, 500 Buck1 = VDDCPU Buck6 = VDDQ (DDR3L, DDR4, lpDDR3, lpDDR4) BUCK2, BUCK3 0.5 V to 1.5 V 10 2000, 1500, 1000, 500 Buck2 = VDDCORE Buck3 = VDDGPU BUCK4, BUCK5 1.5 V to 4.2 V 100 500, 250 Buck4 = VDD (VDDIO) Buck5 = VDDA18x BUCK7 1.5 V to 4.2 V 100 2500, 2000, 1500, 1000 General purpose Note: VIN is the main STPMIC25 supply. All buck converters and linear regulators have dedicated or shared power supply pins. The dedicated VIO supply is for all digital interface pins. Except forVBUS, no other supply voltages must be applied before VIN or set higher than VIN. STPMIC25 Power regulator descriptions DS14278 - Rev 3 page 25/145 |
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