Datasheet

Data Sheet ADP2384
Rev. 0 | Page 3 of 24
SPECIFICATIONS
V
PVIN
= 12 V, T
J
= −40°C to +125°C for minimum/maximum specifications, and T
A
= 25°C for typical specifications, unless otherwise noted.
Table 1.
Parameter Symbol Test Conditions/Comments Min Typ Max Unit
PVIN
PVIN Voltage Range
V
PVIN
4.5
20
V
Quiescent Current I
Q
No switching 2.1 2.9 3.6 mA
Shutdown Current I
SHDN
EN = GND 45 80 120 µA
PVIN Undervoltage Lockout Threshold UVLO PVIN rising 4.3 4.5 V
PVIN falling 3.5 3.8 V
FB
FB Regulation Voltage V
FB
0°C < T
J
< 85°C 0.594 0.6 0.606 V
−40°C < T
J
< 125°C 0.591 0.6 0.609 V
FB Bias Current
I
FB
0.01
0.1
µA
ERROR AMPLIFIER (EA)
Transconductance g
m
340 470 600 µS
EA Source Current
I
SOURCE
40
60
80
µA
EA Sink Current I
SINK
40 60 80 µA
INTERNAL REGULATOR (VREG)
VREG Voltage V
VREG
V
PVIN
= 12 V, I
VREG
= 50 mA 7.6 8 8.4 V
Dropout Voltage V
PVIN
= 12 V, I
VREG
= 50 mA 340 mV
Regulator Current Limit 65 100 135 mA
SW
High-Side On Resistance
1
V
BST
− V
SW
= 5 V 44 70 mΩ
Low-Side On Resistance
1
V
VREG
= 8 V 11.6 20 mΩ
High-Side Peak Current Limit 4.8 6.1 7.4 A
Low-Side Negative Current-Limit
Threshold Voltage
2
20 mV
SW Minimum On Time t
MIN_ON
125 168 ns
SW Minimum Off Time t
MIN_OFF
200 260 ns
BST
Bootstrap Voltage V
BOOT
4.5 5 5.5 V
OSCILLATOR (RT PIN)
Switching Frequency
f
SW
R
T
= 100 kΩ
530
600
670
kHz
Switching Frequency Range f
SW
200 1400 kHz
SYNC
Synchronization Range
200
1400
kHz
SYNC Minimum Pulse Width 100 ns
SYNC Minimum Off Time 100 ns
SYNC Input High Voltage 1.3 V
SYNC Input Low Voltage 0.4 V
SS
Internal Soft Start 1600 Clock cycles
SS Pin Pull-Up Current I
SS_UP
2.5 3.2 3.9 µA
PGOOD
Power-Good Range
FB Rising Threshold PGOOD from low to high 95 %
FB Rising Hysteresis
PGOOD from high to low
5
%
FB Falling Threshold PGOOD from low to high 105 %
FB Falling Hysteresis PGOOD from high to low 11.7 %