STM32MP157C datasheet(135/258 Pages) STMICROELECTRONICS

135 / 258 page

DS12505 Rev 2

135/258

STM32MP157C

Electrical characteristics

238

REG1V8 embedded regulator (USB+DSI)

6.3.6

Supply current characteristics

The current consumption is a function of several parameters and factors such as the

operating voltage, ambient temperature, I/O pin loading, device software configuration,

operating frequencies, I/O pin switching rate, program location in memory and executed

binary code.

The current consumption is measured as described in Figure 12: Current consumption

measurement scheme.

All the Run mode current consumption measurements given in this section are performed

with a CoreMark code unless otherwise specified.

IVDD

Regulator Current consumption on

VDD

Regulator Enabled and Iload =

0 mA

150

203

µA

Regulator Enabled and Iload =

50 mA

178

243

1. Guaranteed by design.

2. For better dynamic performances a 2.2 μF typical value external capacitor is recommended.

3. Load is for internal STM32MP157C analog blocks, no additional external load is accepted unless mentioned.

Table 19. REG1V2 embedded regulator (DSI) characteristics(1) (continued)

Symbol

Parameter

Condition

Min

Typ

Max

Unit

Table 20. REG1V8 embedded regulator (USB+DSI) characteristics(1)

Symbol

Parameter

Condition

Min

Typ

Max

Unit

VDD

Regulator input voltage

2.25

3.3

3.6

VDDA1V8_

REG

Regulated output voltage

after trimming

1.7

1.8

1.9

Load Capacitor

0.5

2.2(2)

3.3

µF

esr

Equivalent Serial Resistor of Cload

0.1

600

mΩ

Iload

Static load current(3)

tSTART

Start-up time. from

PWR_CR3.REG11EN = 1 to

PWR_CR3.REG11RDY = 1

CL=2.2uF

µs

CL=3.3uF

150

IINRUSH

VDD Inrush Current to load external

capacitor at start

100

IVDD

Regulator Current consumption on

VDD

Regulator Enabled and Iload =

0 mA

130

181

µA

Regulator Enabled and Iload =

70 mA

170

231

1. Guaranteed by design.

2. For better dynamic performances a 2.2 μF typical value external capacitor is recommended.

3. Load is for internal STM32MP157C analog blocks, no additional external load is accepted unless mentioned.

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