ADP5033 Analog Devices, ADP5033 Datasheet - Page 5

• Manufacturer Part Number: ADP5033
• Description: Dual 3 MHz, 800 mA Buck Regulators with Two 300 mA LDOs
• Manufacturer: Analog Devices

Data Sheet
Parameter
DROPOUT VOLTAGE
CURRENT-LIMIT THRESHOLD
ACTIVE PULL-DOWN
POWER SUPPLY REJECTION RATIO
1
2
3
4
5
INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS
T
Table 4.
Parameter
NOMINAL INPUT AND OUTPUT CAPACITOR RATINGS
CAPACITOR ESR
1
All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).
This is the input current into VIN3/VIN4, which is not delivered to the output load.
Based on an endpoint calculation using 1 mA and 300 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 to output voltages
above 1.7 V.
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.
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 because of their poor temperature and dc bias characteristics.
A
Regulator LDO1
Regulator LDO2
BUCK1, BUCK2 Input Capacitor Rating
BUCK1, BUCK2 Output Capacitor Rating
LDO1, LDO2
= −40°C to +125°C, unless otherwise specified.
1
Input and Output Capacitor Rating
4
5
Symbol
V
I
R
PSRR
LIMIT3
DROPOUT
PDWN-L
, I
LIMIT4
Test Conditions/Comments
V
V
V
V
Channel disabled
10 kHz, V
100 kHz, V
1 MHz, V
10 kHz, V
100 kHz, V
1 MHz, V
OUT3
OUT3
OUT3
OUT3
Rev. A | Page 5 of 28
= V
= V
= V
= V
OUT4
OUT4
OUT4
OUT4
IN3
IN4
IN3
IN4
IN3
IN4
= 3.3 V, V
= 1.8 V, V
= 3.3 V, V
= 1.8 V, V
= 5.2 V, I
= 3.3 V, I
= 2.5 V, I
= 1.8 V, I
= 3.3 V, V
= 1.8 V, V
Symbol
C
C
C
R
ESR
MIN1
MIN1
MIN3
OUT3
OUT4
OUT3
OUT4
OUT3
OUT3
OUT3
OUT3
OUT3
OUT4
, C
, C
, C
= 2.8 V, I
= 1.2 V, I
= 2.8 V, I
= 1.2 V, I
= I
= I
= I
= I
MIN2
MIN2
MIN4
= 2.8 V, I
= 1.2 V, I
OUT4
OUT4
OUT4
OUT4
= 300 mA
= 300 mA
= 300 mA
= 300 mA
OUT3
OUT4
OUT3
OUT4
OUT3
OUT4
= 1 mA
= 1 mA
= 1 mA
= 1 mA
= 1 mA
= 1 mA
Min
4.7
10
1.0
0.001
Min
335
Typ
Typ
50
65
85
165
600
600
60
62
63
54
57
64
Max
40
40
1
Max
110
ADP5033
Unit
μF
μF
μF
Ω
Unit
mV
mV
mV
mV
mA
Ω
dB
dB
dB
dB
dB
dB