Datasheet
Data Sheet ADP2380
Rev. 0 | Page 3 of 28
SPECIFICATIONS
V
IN
= 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 2.2 2.8 3.4 mA
Shutdown Current I
SHDN
EN/SS = GND 85 125 170 µA
PVIN Undervoltage Lockout Threshold PVIN rising 4.3 4.5 V
PVIN falling 3.7 3.9 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
340 470 590 µS
EA Source Current I
SOURCE
45 60 75 µA
EA Sink Current I
SINK
45 60 75 µA
INTERNAL REGULATOR (VREG)
VREG Voltage V
VREG
V
PVIN
= 12 V, I
VREG
= 50 mA 7.7 8 8.4 V
Dropout Voltage V
PVIN
= 12 V, I
VREG
= 50 mA 350 mV
Regulator Current Limit 65 100 130 mA
SW
High-Side On Resistance
1
V
BST
− V
SW
= 5 V 44 70 mΩ
High-Side Peak Current Limit 4.8 7 9 A
Negative Current-Limit Threshold Voltage
2
20 mV
SW Minimum On Time t
MIN_ON
120 155 ns
SW Minimum Off Time t
MIN_OFF
195 280 ns
LOW-SIDE DRIVER (LD)
Rising Time
2
t
R
C
DL
= 2.2 nF; see Figure 17 20 ns
Falling Time
2
t
F
C
DL
= 2.2 nF; see Figure 20
10
ns
Sourcing Resistor 4 6.5 Ω
Sinking Resistor 2 4.5 Ω
BST
Bootstrap Voltage V
BOOT
4.7 5 5.6 V
OSCILLATOR (RT PIN)
Switching Frequency
f
SW
RT pin connected to GND 210 290 350 kHz
RT pin open 410 540 650 kHz
R
OSC
= 100 kΩ 440 500 560 kHz
Switching Frequency Range f
SW
250 1400 kHz
SYNC
Synchronization Range 250 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
EN/SS
Enable Threshold 0.5 V
Internal Soft Start 1600 Clock cycles
SS Pin Pull-Up Current I
SS_UP
2.4 3.2 3.6 µA