ADP5024CP-EVALZ datasheet(5/28 Pages) AD

Part #	ADP5024CP-EVALZ

Description	Dual 3 MHz, 1200 mA Buck

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Data Sheet

ADP5024

Rev. A | Page 5 of 28

LDO SPECIFICATIONS

VIN3 = (VOUT3 + 0.5 V) or 1.7 V (whichever is greater) to 5.5 V; CIN = COUT = 1 µF; TJ = −40°C to +125°C for minimum/maximum

specifications, and TA = 25°C for typical specifications, unless otherwise noted.1

Table 3.

Parameter

Symbol

Test Conditions/Comments

Min

Typ

Max

Unit

INPUT VOLTAGE RANGE

VIN3

1.7

5.5

V

OPERATING SUPPLY CURRENT

Bias Current per LDO2

IVIN3BIAS

IOUT3 = 0 µA

10

30

µA

IOUT3 = 10 mA

60

100

µA

IOUT3 = 300 mA

165

245

µA

Total System Input Current

IIN

Includes all current into AVIN, VIN1,

VIN2, and VIN3

LDO Only

IOUT3 = 0 µA, all other channels

disabled

53

µA

OUTPUT CHARACTERISTICS

Output Voltage Accuracy

ΔVOUT3/VOUT3

100 µA < IOUT3 < 300 mA

−3

+3

%

Line Regulation

(ΔVOUT3/VOUT3)/ΔVIN3

IOUT3 = 1 mA

−0.03

+0.03

%/V

Load Regulation3

(ΔVOUT3/VOUT3)/ΔIOUT3

IOUT3 = 1 mA to 300 mA

0.001

0.003

%/mA

VOLTAGE FEEDBACK

VFB3

0.485

0.5

0.515

V

DROPOUT VOLTAGE4

VDROPOUT

VOUT3 = 5.2 V, IOUT3 = 300 mA

50

mV

VOUT3 = 3.3 V, IOUT3 = 300 mA

75

140

VOUT3 = 2.5 V, IOUT3 = 300 mA

100

mV

VOUT3 = 1.8 V, IOUT3 = 300 mA

180

mV

CURRENT-LIMIT THRESHOLD5

ILIMIT3

335

600

mA

ACTIVE PULL-DOWN

RPDWN-L

Channel disabled

600

Ω

OUTPUT NOISE

Regulator LDO

NOISELDO

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

100

µV rms

POWER SUPPLY REJECTION

RATIO

PSRR

Regulator LDO

10 kHz, VIN3 = 3.3 V, VOUT3 = 2.8 V,

IOUT3 = 1 mA

60

dB

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

IOUT3 = 1 mA

62

dB

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

IOUT3 = 1 mA

63

dB

1

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

2

This is the input current into VIN3, which is not delivered to the output load.

3

Based on an endpoint 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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