ADP5034

Manufacturer Part NumberADP5034
DescriptionDual 3 MHz, 1200mA Buck Regulator with Two 300 mA LDOs
ManufacturerAnalog Devices
ADP5034 datasheet
 
1
Page 1
2
Page 2
3
Page 3
4
Page 4
5
Page 5
6
Page 6
7
Page 7
8
Page 8
9
Page 9
10
Page 10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Page 5/28

Download datasheet (701Kb)Embed
PrevNext
Data Sheet
Parameter
Symbol
VOLTAGE FEEDBACK
V
, V
FB3
FB4
4
DROPOUT VOLTAGE
V
DROPOUT
5
CURRENT-LIMIT THRESHOLD
I
, I
LIMIT3
ACTIVE PULL-DOWN
R
PDWN-L
OUTPUT NOISE
Regulator LDO1
NOISE
Regulator LDO2
NOISE
POWER SUPPLY REJECTION
PSRR
RATIO
Regulator LDO1
Regulator LDO2
1
All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).
2
This is the input current into VIN3/VIN4, 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.
INPUT AND OUTPUT CAPACITOR, RECOMMENDED SPECIFICATIONS
T
= −40°C to +125°C, unless otherwise specified.
A
Table 4.
Parameter
SUGGESTED INPUT AND OUTPUT CAPACITANCE
BUCK1, BUCK2 Input Capacitor
BUCK1, BUCK2 Output Capacitor
1
LDO1, LDO2
Input and Output Capacitor
CAPACITOR ESR
1
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.
Test Conditions/Comments
V
= V
= 5.2 V, I
OUT3
OUT4
OUT3
V
= V
= 3.3 V, I
OUT3
OUT4
OUT3
V
= V
= 2.5 V, I
OUT3
OUT4
OUT3
V
= V
= 1.8 V, I
OUT3
OUT4
OUT3
LIMIT4
Channel disabled
10 Hz to 100 kHz, V
= 5 V, V
LDO1
IN3
10 Hz to 100 kHz, V
= 5 V, V
LDO2
IN4
10 kHz, V
= 3.3 V, V
IN3
OUT3
100 kHz, V
= 3.3 V, V
IN3
OUT3
1 MHz, V
= 3.3 V, V
IN3
OUT3
10 kHz, V
= 1.8 V, V
IN4
OUT4
100 kHz, V
= 1.8 V, V
IN4
OUT4
1 MHz, V
= 1.8 V, V
IN4
OUT4
Symbol
C
, C
MIN1
C
, C
MIN1
C
, C
MIN3
R
ESR
Rev. A | Page 5 of 28
Min
Typ
0.485
0.5
= I
= 300 mA
50
OUT4
= I
= 300 mA
75
OUT4
= I
= 300 mA
100
OUT4
= I
= 300 mA
180
OUT4
335
600
600
= 2.8 V
100
OUT3
= 1.2 V
60
OUT4
= 2.8 V, I
= 1 mA
60
OUT3
= 2.8 V, I
= 1 mA
62
OUT3
= 2.8 V, I
= 1 mA
63
OUT3
= 1.2 V, I
= 1 mA
54
OUT4
= 1.2 V, I
= 1 mA
57
OUT4
= 1.2 V, I
= 1 mA
64
OUT4
Min
Typ
Max
4.7
40
MIN2
7
40
MIN2
0.70
MIN4
0.001
1
ADP5034
Max
Unit
0.515
V
mV
140
mV
mV
mV
mA
Ω
μV rms
μV rms
dB
dB
dB
dB
dB
dB
Unit
μF
μF
μF
Ω