STPMIC25APQR datasheet(25/145 Pages) STMICROELECTRONICS

25 / 145 page

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

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

lpDDR VDD1

LDO4

3.3

VDD33USB

VDD33UCPD

VREFDDR

VOUT6 / 2

+/-5 (rms)

+/-10 (peak)

Reference voltage for DDR

memories

BUCK1, BUCK6

0.5 V to 1.5 V

2000, 1500, 1000, 500

Buck1 = VDDCPU

Buck6 = VDDQ

(DDR3L, DDR4, lpDDR3,

lpDDR4)

BUCK2, BUCK3

0.5 V to 1.5 V

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

STPMIC25APQR bảng dữ liệu(PDF) 25 Page - STMicroelectronics

STPMIC25APQR bảng dữ liệu(HTML) 25 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

bảng dữ liệu tải về

Link URL