Datasheet

ADP5023 Data Sheet
Rev. D | Page 4 of 28
BUCK1 AND BUCK2 SPECIFICATIONS
V
AVIN
= V
IN1
= V
IN2
= 2.3 V to 5.5 V; T
J
= −40°C to +125°C for minimum/maximum specifications, and T
A
= 25°C for typical
specifications, unless otherwise noted.
1
Table 3.
Parameter Symbol Test Conditions/Comments Min Typ Max Unit
OUTPUT CHARACTERISTICS
Output Voltage Accuracy ΔV
OUT1
/V
OUT1
,
ΔV
OUT2
/V
OUT2
PWM mode; I
LOAD1
= I
LOAD2
= 0 mA −1.8 +1.8 %
Line Regulation (ΔV
OUT1
/V
OUT1
)/ΔV
IN1
,
(ΔV
OUT2
/V
OUT2
)/ΔV
IN2
PWM mode −0.05 %/V
Load Regulation (ΔV
OUT1
/V
OUT1
)/ΔI
OUT1
,
(ΔV
OUT2
/V
OUT2
)/ΔI
OUT2
PWM mode; I
LOAD
= 0 mA to 800 mA −0.1 %/A
VOLTAGE FEEDBACK
V
FB1
, V
FB2
Models with adjustable outputs
0.491
0.5
0.509
V
OPERATING SUPPLY CURRENT MODE = ground
BUCK1 Only I
IN
I
LOAD1
= 0 mA, device not switching, all
other channels disabled
44 μA
BUCK2 Only I
IN
I
LOAD2
= 0 mA, device not switching, all
other channels disabled
55 μA
BUCK1 and BUCK2 I
IN
I
LOAD1
= I
LOAD2
= 0 mA, device not switching,
LDO channels disabled
67 μA
PSM CURRENT THRESHOLD I
PSM
PSM to PWM operation 100 mA
SW CHARACTERISTICS
SW On Resistance R
NFET
V
IN1
= V
IN2
= 3.6 V 155 240 mΩ
R
PFET
V
IN1
= V
IN2
= 3.6 V 205 310 mΩ
R
NFET
V
IN1
= V
IN2
= 5.5 V 137 204 mΩ
R
PFET
V
IN1
= V
IN2
= 5.5 V 162 243 mΩ
Current Limit
I
LIMIT1
, I
LIMIT2
pFET switch peak current limit
1600
1950
2300
mA
ACTIVE PULL-DOWN R
PDWN-B
Channel disabled 75 Ω
OSCILLATOR FREQUENCY f
SW
2.5 3.0 3.5 MHz
1
All limits at temperature extremes are guaranteed via correlation using standard statistical quality control (SQC).