ADP5041ACPZ-1-R7 datasheet(5/40 Pages) AD

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Data Sheet

ADP5041

Rev. B | Page 5 of 40

LDO1, LDO2 SPECIFICATIONS

VIN2, VIN3 = (VOUT2, VOUT3 + 0.5 V) or 1.7 V (whichever is greater) to 5.5 V; AVIN, VIN1 ≥ VIN2, VIN3; CIN = 1 μF, COUT = 2.2 μF;

TJ= −40°C to +125°C for minimum/maximum specifications and TA = 25°C for typical specifications, unless otherwise noted.1

Table 4.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

INPUT VOLTAGE RANGE

VIN2, VIN3

TJ = −40°C to +125°C

1.7

5.5

OPERATING SUPPLY CURRENT

Bias Current per LDO2

IVIN2BIAS/IVIN3BIAS

IOUT3 = IOUT4 = 0 μA

μA

IOUT2 = IOUT3 = 10 mA

100

μA

IOUT2 = IOUT3 = 300 mA

165

245

μA

Total System Input Current

IIN

Includes all current into AVIN, VIN1, VIN2, and

VIN3

LDO1 or LDO2 Only

IOUT2 = IOUT3 = 0 μA, all other channels disabled

μA

LDO1 and LDO2 Only

IOUT2 = IOUT3 = 0 μA, buck disabled

μA

OUTPUT VOLTAGE ACCURACY

VOUT2, VOUT3

100 μA < IOUT2 < 300 mA, 100 μA < IOUT3 < 300 mA

VIN2 = (VOUT2 + 0.5 V) to 5.5 V

VIN3 = (VOUT3 + 0.5 V) to 5.5 V

−3

REFERENCE VOLTAGE

VFB2,VFB3

0.485

0.500

0.515

REGULATION

Line Regulation

(ΔVOUT2/VOUT2)/ΔVIN2

(ΔVOUT3/VOUT3)/ΔVIN3

VIN2 = (VOUT2 + 0.5 V) to 5.5 V

VIN3 = (VOUT3 + 0.5 V) to 5.5 V

−0.03

+0.03

%/ V

IOUT2 = IOUT3 = 1 mA

Load Regulation3

(ΔVOUT2/VOUT2)/ΔIOUT2

(ΔVOUT3/VOUT3)/ΔIOUT3

IOUT2 = IOUT3 = 1 mA to 300 mA

0.002

0.0075

%/mA

DROPOUT VOLTAGE4

VDROPOUT

VOUT2 = VOUT3 = 5.0 V, IOUT2 = IOUT3 = 300 mA

VOUT2 = VOUT3 = 3.3 V, IOUT2 = IOUT3 = 300 mA

140

VOUT2 = VOUT3 = 2.5 V, IOUT2 = IOUT3 = 300 mA

107

VOUT2 = VOUT3 = 1.8 V, IOUT2 = IOUT3 = 300 mA

180

ACTIVE PULL-DOWN

RPDLDO

EN2/EN3 = 0 V

600

CURRENT-LIMIT THRESHOLD5

ILIMIT

TJ = −40°C to +125°C

335

470

OUTPUT NOISE

OUTLDO2NOISE

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

123

μV rms

10 Hz to 100 kHz, VIN3 = 5 V, VOUT3 = 2.8 V

110

μV rms

10 Hz to 100 kHz, VIN3 = 5 V, VOUT3 = 1.5 V

μV rms

OUTLDO1NOISE

10 Hz to 100 kHz, VIN2 = 5 V, VOUT2 = 3.3 V

140

μV rms

10 Hz to 100 kHz, VIN2 = 5 V, VOUT2 = 2.8 V

129

μV rms

10 Hz to 100 kHz, VIN2 = 5 V, VOUT2 = 1.5 V

μV rms

POWER SUPPLY REJECTION

RATIO

PSRR

1 kHz, VIN2, VIN3 = 3.3 V, VOUT2, VOUT3 = 2.8 V,

IOUT = 100 mA

100 kHz, VIN2,VIN3 = 3.3 V, VOUT2,VOUT3 = 2.8 V,

IOUT = 100 mA

1 MHz, VIN2, VIN3 = 3.3 V, VOUT2, VOUT3 = 2.8 V,

IOUT = 100 mA

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

2 This is the input current into VIN2 and VIN3 that is not delivered to the output load.

3 Based on an end-point calculation using 1 mA and 300 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 to output voltages

above 1.7 V.

5 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 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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