ADP5138WACPZ-1-R7 datasheet(6/23 Pages) AD

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ADP5138

Data Sheet

Rev. A | Page 6 of 23

LDO REGULATOR SPECIFICATIONS

VAVIN = 5.0 V, VPVIN5 = (output voltage of Channel 5 (VOUT5) + 0.5 V) or 3 V (whichever is greater), input capacitance of Channel 5 (CIN5) =

output capacitance of Channel 5 (COUT5) = 1 μF, TJ = −40°C to +125°C for minimum and maximum specifications, and TA = 25°C for

typical specifications, unless otherwise noted.

Table 3.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

CURRENT

Operating Quiescent Current

IQ_LDO5

IOUT5 = 0 µA, VOUT5 = 1.8 V

100

µA

IOUT5 = 100 mA, VOUT5 = 1.8 V

146

300

µA

Output Current

IOUT5

VPVIN5 ≥ 3 V

250

1.7 V ≤ VPVIN5 < 3 V

100

Current Limit

VOUT5 drops 5% from nominal voltage

300

400

FEEDBACK

FB5 Regulation Voltage

VFB5

Adjustable version

0.788

0.8

0.812

Fixed Output Voltage Accuracy

VOUT5

IOUT5 = 10 mA, TJ = 25°C

−1

1 mA < IOUT5 < 250 mA

−2

REGULATION

Load Regulation

IOUT5 from 1 mA to 250 mA

0.002

0.005

%/mA

Line Regulation

IOUT5 = 10 mA

−0.1

+0.1

%/V

DROPOUT VOLTAGE1

VDROPOUT5

VOUT5 = 3.3 V, IOUT5 = 250 mA

173

VOUT5 = 1.8 V, IOUT5 = 100 mA

132

OUTPUT DISCHARGE RESISTANCE

RDISCHARGE5

120

SOFT START TIME

tSS5

VOUT5 = 1.8 V, IOUT5 = 250 mA

420

570

720

µs

OUTPUT NOISE2

OUTNOISE5

10 Hz to 100 kHz, VPVIN5 = 5 V, VOUT5 = 1.8 V, IOUT5 =

250 mA, adjustable output option

µV rms

POWER SUPPLY REJECTION RATIO2

PSRRLDO5

1 kHz, VPVIN5 = 5 V, VOUT5 = 1.8 V, IOUT5 = 250 mA,

adjustable output option

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

Bench characterization result.

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