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ADP5042

Rev. 0 | Page 6 of 32

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

Load Regulation1

∆VOUT2/∆IOUT2

∆VOUT3/∆IOUT3

IOUT2, VOUT3 = 1 mA to 200 mA

0.002

%/mA

IOUT2, VOUT3 = 1 mA to 200 mA

0.0075

%/mA

TJ = −40°C to +125°C

DROPOUT VOLTAGE2

VDROPOUT

VOUT2, VOUT3 = 3.3 V

IOUT2, IOUT3 = 10 mA

IOUT2, IOUT3 = 10 mA, TJ = −40°C to +125°C

IOUT2, IOUT3 = 200 mA

IOUT2, IOUT3 = 200 mA, TJ = −40°C to +125°C

100

ACTIVE PULL-DOWN

RPDLDO

EN2/EN3 = 0 V

600

START-UP TIME

TSTART-UP

VOUT2, VOUT3 = 3.3 V

μs

CURRENT-LIMIT THRESHOLD3

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, OUT3 = 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 Based on an end-point calculation using 1 mA and 100 mA loads.

2 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.

3 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.

INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS

Table 5.

Parameter

Symbol

Conditions

Min

Typ

Max

Unit

MINIMUM OUTPUT CAPACITANCE (BUCK)1

CMIN1

TJ = −40°C to +125°C

μF

MINIMUM INPUT AND OUTPUT CAPACITANCE2 (LDO1, LDO2)

CMIN23

TJ = −40°C to +125°C

0.70

μF

CAPACITOR ESR

RESR

TJ = −40°C to +125°C

0.001

1 The minimum output capacitance should be greater than 4.7 μF 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.

2 The minimum input and output capacitance should be greater than 0.70 μF 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,

Y5V and Z5U capacitors are not recommended for use with LDOs or the buck.

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