Data Sheet

ADPL42005

analog.com

Rev. 0

4 of 26

(VIN = (VOUT + 1V) or 4V (whichever is greater), EN = VIN, IOUT = 10mA, CIN = COUT = 1µF, TA = 25°C for typical

specifications, TJ = −40°C to +125°C for minimum/maximum specifications, unless otherwise noted.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

UVLO THRESHOLD

FALLING

UVLOFALL

3.3V ≤ VIN ≤ 20V, 10kΩ in series with the

enable pin

1.13

V

UVLO HYSTERESIS

CURRENT

UVLOHYS

VEN > 1.25V

7.5

9.8

12

µA

ENABLE PULL-DOWN

CURRENT

IEN-IN

EN = VIN

500

nA

START THRESHOLD

VSTART

3.2

V

SHUTDOWN THRESHOLD

VSHUTDOWN

2.45

V

HYSTERESIS

250

mV

OUTPUT NOISE

OUTNOISE

10Hz to 100kHz, VIN = 6.3V, VOUT = 3.3V

32

µV rms

10Hz to 100kHz, VIN = 5.5V, VOUT = 1.5V,

adjustable mode

18

µV rms

10Hz to 100kHz, VIN = 12V, VOUT = 5V,

adjustable mode

30

µV rms

10Hz to 100kHz, VIN = 20V, VOUT = 15V,

adjustable mode

65

µV rms

POWER SUPPLY

REJECTION RATIO

PSRR

100kHz, VIN = 4.3V, VOUT = 3.3V

50

dB

10kHz, VIN = 4.3V, VOUT = 3.3V

58

dB

100kHz, VIN = 3.3V, VOUT = 1.8V, adjustable

mode

50

dB

10kHz, VIN = 3.3V, VOUT = 1.8V, adjustable

mode

60

dB

1

Based on an end-point calculation using 1mA and 500mA loads. See Figure 6 for typical load regulation

performance for loads less than 1mA.

2

Dropout voltage is defined as the input-to-output voltage differential when the input voltage is set to the

nominal output voltage. This applies only for output voltages above 3.0V.

3

Current limit threshold is defined as the current at which the output voltage drops to 90% of the specified

typical value. For example, the current limit for a 5.0V output voltage is defined as the current that causes the

output voltage to drop to 90% of 5.0V, or 4.5V.