Data Sheet

ADPL44002

analog.com

Rev. 0

5 of 23

(VIN = VOUT +1V or 2.7V, whichever is greater, VOUT = 5V, VEN = VIN, IOUT = 10mA, CIN = COUT = 2.2µF, CSS = OPEN, 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

PRECISION EN INPUT

Logic High

ENHIGH

2.7V ≤ VIN ≤ 40V

1.15

1.22

1.30

V

Logic Low

ENLOW

2.7V ≤ VIN ≤ 40V

1.06

1.12

1.18

V

Logic Hysteresis

ENHYS

2.7V ≤ VIN ≤ 40V

100

mV

Leakage Current

IEN-LKG

EN = VIN or GND, 2.7V ≤ VIN

≤ 40V

0.04

1

µA

Delay Time

tEN-DLY

From EN rising from 0V

to VIN to 0.1 × VOUT, 2.7V ≤

VIN ≤ 40V

80

μs

Output Noise

OUTNOISE

10Hz to 100kHz, all

output voltage options

20

µVRMS

Power Supply

Rejection Ratio

PSRR

1MHz, VIN = 7V, VOUT = 5V

40

dB

100kHz, VIN = 7V, VOUT =

5V

58

dB

10kHz, VIN = 7V, VOUT = 5V

78

dB

1

Based on an endpoint calculation using 100μA and 200mA 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. Dropout applies only for output voltages above 2.7V.

3

Start-up time is defined as the time between the rising edge of EN to OUT being at 90% of its nominal value.

4

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.

Table 2. Input and Output Capacitance, Recommended Specifications

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

INPUT AND OUTPUT CAPACITANCE

Minimum Capacitance1

CMIN

TA = −40°C to +125°C

1.5

µF

Capacitor Effective

Series Resistance (ESR)

RESR

TA = −40°C to +125°C

0.001

0.3

Ω

1

The minimum input and output capacitance must be greater than 1.5μF over the full range of operating

conditions. The full range of operating conditions in the application must be considered during device selection

to ensure that the minimum capacitance specification is met. X7R and X5R type capacitors are recommended,

while Y5V and Z5U capacitors are not recommended for use with any LDO.