AT73C239 datasheet(21/31 Pages) ATMEL

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6201C–PMAAC–31-Jul-07

AT73C239

13.3

LDO3

Table 13-7.

LDO3 Parametric Table

Symbol

Parameter

Comments

Min

Typ

Max

Units

VDD3

Operating supply voltage

Switching Regulated

3.0

3.3

3.6

VO3

Output voltage

Factory programmed

1.75

1.8

1.85

Programmable

1.45

1.5

1.55

Programmable

1.18

1.23

1.28

Load current

IQC

Quiescent current

300

µA

ISC

Shutdown current

HiZ output

µA

ISH

Short circuit current

200

Startup time

100

µs

∆V

Line regulation static

From 3.0V to 3.6V

∆V

Load regulation static

From 10% to 100% I3

From 0 to 100% I3

∆V

TRAN

Line regulation dynamic

From 3.1V to 3.6V

R = tF = 5 µs, I3 = 60 mA

2mV

∆V

TRAN

Load regulation dynamic

From 10% to 100%

I1, tR = tF = 5 µs,

3mV

PSRR

Power Supply Rejection Ratio

Sine Wave, 100 kHz frequency,

3.3V mean 200 m VPP

Sine Wave, 10 kHz frequency,

3.3V mean, 200 m V

Sine Wave, 1 kHz frequency,

3.3V mean 200 m VPP

∆V

OUT

Startup Overshoot

Output Noise

10 Hz - 100 kHz, without VBG

µVRMS

VNT

Total Output Noise

10 Hz - 100 kHz

µVRMS

Table 13-8.

External Components

Schematic Reference

Description

OUT3

X5R 1 µF ± 20% ceramic capacitor

Table 13-9.

Control Modes

onldo3

sel3[0]

sel3[1]

VO3

HiZ

1001.8V

1101.5V

1011.23V

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