ADP5022ACBZ-4-R7 datasheet(5/28 Pages) AD

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ADP5022

Rev. A | Page 5 of 28

LDO SPECIFICATIONS

VDDA = VIN1 = VIN2 = 3.6 V, VIN3 = (VOUT3 + 0.5 V) or 2.3 V, whichever is greater, VIN3 ≤ VIN1, IOUT3 = 10 mA; CIN3 = COUT3 =

1 μF, TJ = −40°C to +125°C, unless otherwise noted.1

Table 3.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

OPERATING SUPPLY CURRENT2

IVIN3-GND

IOUT3 = 0 μA

μA

IOUT3 = 10 mA

μA

IOUT3 = 150 mA

μA

OUTPUT VOLTAGE ACCURACY

VOUT3

100 μA < IOUT3 < 150 mA,

VIN3 = (VOUT3 + 0.5 V) to 5.5 V

−2

REGULATION

Line Regulation

∆VOUT3/∆VIN3

VIN3 = (VOUT3 + 0.5 V) to 5.5 V, IOUT = 1 mA

−0.03

+0.03

%/ V

Load Regulation3

∆VOUT3/∆IOUT3

IOUT3 = 1 mA to 150 mA

0.002

0.0075

%/mA

DROPOUT VOLTAGE4

VDROPOUT

VOUT3 = 3.0 V, IOUT3 = 10 mA

VOUT3 = 3.0 V, IOUT3 = 150 mA

110

150

START-UP TIME5

From Shutdown State

TSTARTUP3-SD

200

μs

CURRENT-LIMIT THRESHOLD6

ILIMIT3

160

240

350

OUTPUT NOISE

OUTNOISE

10 Hz to 100 kHz, VIN3 = 5 V, VOUT3 = 3.3 V

μV rms

10 Hz to 100 kHz, VIN3= 5 V, VOUT3 = 2.4 V

μV rms

10 Hz to 100 kHz, VIN3 = 5 V, VOUT3 = 1.2 V

μV rms

POWER SUPPLY REJECTION RATIO

PSRR

10 kHz, VIN3 = 5 V, VOUT3 = 3.3 V

10 kHz, VIN3 = 5 V, VOUT3 = 2.3 V

10 kHz, VIN3 = 5 V, VOUT3 = 1.2 V

1 All limits at temperature extremes are guaranteed via correlation using standard statistical quality control.

2 LDO operating supply current is the current drawn from VIN3 to AGND when the LDO is enabled. Whenever any regulator channel is enabled, current is drawn from

VIN1 to AGND. This current is 8 μA typical and is included in the IGND1, IGND2, and IGND1-2 specifications.

3 Based on an end-point calculation using 1 mA and 150 mA loads.

4 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 2.3 V.

5 Start-up time is defined as the time between the rising edge of EN3 to VOUT3 being at 90% of its nominal value.

6 Current-limit threshold is defined as the current at which VOUT3 drops to 90% of the specified typical value. For example, the current limit for a 3.0 V output voltage is

defined as the current that causes the output voltage to drop to 90% of 3.0 V or 2.7 V.

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