AS3715 datasheet(29/159 Pages) AMSOSRAM

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[v1-03] 2015-Aug-10

AS3715 − Detailed Description – Power Management Functions

Parameter

Figure 28:

Analog LDO Parameter

LDO Parameter: Shows the key electrical parameter of the linear regulators.

Note(s) and/or Footnote(s):

1. Guaranteed by design and verified by laboratory evaluation and characterization; not production tested.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VOUT_LDO1;2

Output voltage

Iout<150mA; 10mV steps

1.2

3.3

VOUT_tol

Output voltage tolerance

min. ±40mV

-3

IOUT_L

Output current (1)

ldoX_ilimit = 0 (150mA)

150

ILIMIT_L

Current limit (1)

300

IOUT_H

Output current (1)

ldoX_ilimit = 1 (250mA)

250

ILIMIT_H

Current limit (1)

500

RON

ON resistance

LDO1-2

0.6

PSRR

Power supply rejection

ratio

f=1kHz

f=100kHz

Output noise

BW=10Hz to 100kHz;

Vout=1.8V; Iout=1mA;

Cout= 2.2uF

μVrms

BW=10Hz to 100kHz;

Vout=3.3V; Iout=1mA;

Cout= 2.2uF

μVrms

IOFF

Shut down current

100

IVDD

Supply current

without load

μA

without load,

reg_low_bias_mode = 1

μA

tSTART

Startup time

low current used during

start-up

200

μs

VLineReg

Line regulation

Static

-1

Transient; Slope: tr=15μs;

delta 1V

-10

VLoadReg

Load regulation

Static

-1

Transient; Slope: tr=15μs;

1mA->300mA

-10

RDISCHG

Pull-Down resistance

Regulator disabled

770

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