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STPMIC25 데이터시트(PDF) 25 Page - STMicroelectronics

부품명 STPMIC25
상세설명  Highly integrated power management IC for microprocessor units
PDF  145 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STPMIC25 데이터시트(HTML) 25 Page - STMicroelectronics

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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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