ADP5022 Analog Devices, ADP5022 Datasheet - Page 5

• Manufacturer Part Number: ADP5022
• Description: Dual 3 MHz, 600 mA Buck Regulator with 150 mA LDO
• Manufacturer: Analog Devices

LDO SPECIFICATIONS
VDDA = VIN1 = VIN2 = 3.6 V, VIN3 = (VOUT3 + 0.5 V) or 2.3 V, whichever is greater, VIN3 ≤ VIN1, I
1 μF, T
Table 3.
Parameter
OPERATING SUPPLY CURRENT
OUTPUT VOLTAGE ACCURACY
REGULATION
DROPOUT VOLTAGE
START-UP TIME
CURRENT-LIMIT THRESHOLD
OUTPUT NOISE
POWER SUPPLY REJECTION RATIO
1
2
3
4
5
6
All limits at temperature extremes are guaranteed via correlation using standard statistical quality control.
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 I
Based on an end-point calculation using 1 mA and 150 mA loads.
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.
Start-up time is defined as the time between the rising edge of EN3 to VOUT3 being at 90% of its nominal value.
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.
Line Regulation
Load Regulation
From Shutdown State
J
= −40°C to +125°C, unless otherwise noted.
5
3
4
6
2
Symbol
I
V
∆VOUT3/∆V
∆VOUT3/∆I
V
T
I
OUT
PSRR
VIN3-GND
LIMIT3
OUT3
DROPOUT
STARTUP3-SD
NOISE
1
OUT3
IN3
GND1
, I
GND2
Test Conditions/Comments
I
I
I
100 μA < I
VIN3 = (VOUT3 + 0.5 V) to 5.5 V
VIN3 = (VOUT3 + 0.5 V) to 5.5 V, I
I
VOUT3 = 3.0 V, I
VOUT3 = 3.0 V, I
10 Hz to 100 kHz, VIN3 = 5 V, VOUT3 = 3.3 V
10 Hz to 100 kHz, VIN3= 5 V, VOUT3 = 2.4 V
10 Hz to 100 kHz, VIN3 = 5 V, VOUT3 = 1.2 V
10 kHz, VIN3 = 5 V, VOUT3 = 3.3 V
10 kHz, VIN3 = 5 V, VOUT3 = 2.3 V
10 kHz, VIN3 = 5 V, VOUT3 = 1.2 V
OUT3
OUT3
OUT3
OUT3
Rev. C | Page 5 of 28
, and I
= 0 μA
= 10 mA
= 150 mA
= 1 mA to 150 mA
GND1-2
OUT3
specifications.
< 150 mA,
OUT3
OUT3
= 10 mA
= 150 mA
OUT
= 1 mA
OUT3
Min
−2
−0.03
160
= 10 mA; C
Typ
11
16
31
0.002
7
110
200
240
65
52
40
60
66
70
IN3
Max
21
29
43
+2
+0.03
0.0075
150
350
= C
ADP5022
OUT3
=
Unit
μA
μA
μA
%
%/ V
%/mA
mV
mV
μs
mA
μV rms
μV rms
μV rms
dB
dB
dB