ADP5042

Manufacturer Part NumberADP5042
DescriptionMicro PMU with 0.8 A Buck, Two 300 mA LDOs, Supervisory, Watchdog and Manual Reset
ManufacturerAnalog Devices
ADP5042 datasheet
 


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ADP5042
Parameter
Symbol
Load Regulation
1
∆V
∆V
DROPOUT VOLTAGE
2
V
ACTIVE PULL-DOWN
R
START-UP TIME
T
CURRENT-LIMIT THRESHOLD
3
I
LIMIT
OUTPUT NOISE
OUT
OUT
POWER SUPPLY REJECTION RATIO
PSRR
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
MINIMUM OUTPUT CAPACITANCE (BUCK)
1
MINIMUM INPUT AND OUTPUT CAPACITANCE
CAPACITOR ESR
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.
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
2
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.
Conditions
/∆I
I
, V
= 1 mA to 200 mA
OUT2
OUT2
OUT2
OUT3
/∆I
OUT3
OUT3
I
, V
= 1 mA to 200 mA
OUT2
OUT3
T
= −40°C to +125°C
J
V
, V
= 3.3 V
DROPOUT
OUT2
OUT3
I
, I
= 10 mA
OUT2
OUT3
I
, I
= 10 mA, T
= −40°C to +125°C
OUT2
OUT3
J
I
, I
= 200 mA
OUT2
OUT3
I
, I
= 200 mA, T
= −40°C to +125°C
OUT2
OUT3
J
EN2/EN3 = 0 V
PDLDO
V
, V
= 3.3 V
START-UP
OUT2
OUT3
T
= −40°C to +125°C
J
10 Hz to 100 kHz, V
= 5 V, V
LDO2NOISE
IN3
10 Hz to 100 kHz, V
= 5 V, V
IN3
10 Hz to 100 kHz, V
= 5 V, V
IN3
10 Hz to 100 kHz, V
= 5 V, V
LDO1NOISE
IN2
10 Hz to 100 kHz, V
= 5 V, V
IN2
10 Hz to 100 kHz, V
= 5 V, V
IN2
1 kHz, V
, V
= 3.3 V, V
IN2
IN3
OUT2, OUT3
I
= 100 mA
OUT
100 kHz, V
, V
= 3.3 V, V
IN2
IN3
I
= 100 mA
OUT
1 MHz, V
, V
= 3.3 V, V
IN2
IN3
I
= 100 mA
OUT
Symbol
Conditions
C
T
= −40°C to +125°C
MIN1
J
2
(LDO1, LDO2)
C
T
= −40°C to +125°C
MIN23
J
R
T
= −40°C to +125°C
ESR
J
Rev. A | Page 6 of 32
Min
Typ
0.002
4
60
600
85
335
470
= 3.3 V
123
OUT3
= 2.8 V
110
OUT3
= 1.5 V
59
OUT3
= 3.3 V
140
OUT2
= 2.8 V
129
OUT2
= 1.5 V
66
OUT2
= 2.8 V,
66
, V
= 2.8 V,
57
OUT2
OUT3
, V
= 2.8 V,
60
OUT2
OUT3
Min
Typ
7
0.70
0.001
Data Sheet
Max
Unit
%/mA
0.0075
%/mA
mV
5
mV
mV
100
mV
Ω
µs
mA
µV rms
µV rms
µV rms
µV rms
µV rms
µV rms
dB
dB
dB
Max
Unit
40
µF
µF
1
Ω