AS3722 datasheet(41/198 Pages) AMSCO

номер детали	AS3722

подробное описание детали	Multi-Phase DCDC Controller PMIC

PDF	198 Pages

Scroll/Zoom	100%

производитель	AMSCO [ams AG]

домашняя страница	http://www.ams.com

Logo

41 / 198 page

ams Datasheet

Page 41

[v1-01] 2015-Sep-07

Document Feedback

AS3722 − Detailed Descriptions- Power Management Functions

LDO Regulators

Description

11 universal IO range LDOs offer a wide input (1.7V to 5.5V) as

well as a wide output (0.8 to 3.3V) voltage range to be used for

general purpose peripheral supply. LDO3 is intended to be used

for tracking the output voltage of SD1 or SD6, step-size and

range are matching those of SD1 and SD6.

The extended input range LDO (LDO0) can work down to 1.15V

on the input side, to be used as a post regulator after a DCDC

with low output voltage (e.g. 1.2V). Up to 300mA possible

output currents are offered with good noise and regulation

performance and very low quiescent current even suitable for

stand-by power supply.

Figure 38:

Universal IO LDO Block Diagram

Universal IO LDO Block Diagram:

Shows the internal structure of the

PMOS linear regulators.

PMOS

Power

Device

0.6

VIN_LDOx

Error

Amplifier

LDOx

VSS

Vref

1.6V or 0.8V

low noise

CLOAD_LDOx

AS3722 датащи(PDF) 41 Page - ams AG