Datasheet

ADP5024 Data Sheet
Rev. E | Page 4 of 28
BUCK1 AND BUCK2 SPECIFICATIONS
V
AVI N
= 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
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
I
LOAD
= 0 mA to 1200 mA, PWM mode
−0.1
%/A
VOLTAG E 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).