ADP5022 Ver la hoja de datos (PDF) - Analog Devices

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ADP5022

Dual 3 MHz, 600 mA Buck Regulator with 150 mA LDO

Analog Devices 

ADP5022

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

OPERATING SUPPLY CURRENT2

OUTPUT VOLTAGE ACCURACY

REGULATION

Line Regulation

Load Regulation3

DROPOUT VOLTAGE4

START-UP TIME5

From Shutdown State

CURRENT-LIMIT THRESHOLD6

OUTPUT NOISE

POWER SUPPLY REJECTION RATIO

Symbol

IVIN3-GND

VOUT3

Test Conditions/Comments

IOUT3 = 0 μA

IOUT3 = 10 mA

IOUT3 = 150 mA

100 μA < IOUT3 < 150 mA,

VIN3 = (VOUT3 + 0.5 V) to 5.5 V

Min Typ Max Unit

11 21

μA

16 29

μA

31 43

μA

−2

+2

%

∆VOUT3/∆VIN3 VIN3 = (VOUT3 + 0.5 V) to 5.5 V, IOUT = 1 mA −0.03

+0.03 %/ V

∆VOUT3/∆IOUT3 IOUT3 = 1 mA to 150 mA

0.002 0.0075 %/mA

VDROPOUT

VOUT3 = 3.0 V, IOUT3 = 10 mA

VOUT3 = 3.0 V, IOUT3 = 150 mA

7

mV

110 150 mV

TSTARTUP3-SD

ILIMIT3

OUTNOISE

PSRR

200

160 240 350

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

65

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

52

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

40

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

60

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

66

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

70

μs

mA

μV rms

μV rms

μV rms

dB

dB

dB

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.

Rev. C | Page 5 of 28

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