ADP2325
SPECIFICATIONS
PVIN1 = PVIN2 = 12 V at T
J
= −40°C to +125°C, unless otherwise noted.
Table 1.
Parameters
POWER INPUT (PVINx PINS)
Power Input Voltage Range
Quiescent Current (PVIN1 + PVIN2)
Shutdown Current (PVIN1 + PVIN2)
PVINx Undervoltage Lockout Threshold
PVINx Rising
PVINx Falling
FEEDBACK (FBx PINS)
FBx Regulation Voltage
FBx Bias Current
ERROR AMPLIFIER (COMPx PINS)
Transconductance
Error Amplifier Source Current
Error Amplifier Sink Current
INTERNAL REGULATOR (INTVCC PIN)
INTVCC Voltage
Dropout Voltage
Regulator Current Limit
SWITCH NODE (SWx PINS)
High-Side On Resistance
High-Side Peak Current Limit
Low-Side Negative Current-Limit Threshold
Voltage
SWx Minimum On Time
SWx Minimum Off Time
LOW-SIDE DRIVER (DLx PINS)
Rising Time
Falling Time
Sourcing Resistor
Sinking Resistor
OSCILLATOR (RT PIN)
PWM Switching Frequency
PWM Frequency Range
SYNCHRONIZATION (SYNC PIN)
SYNC Input
Synchronization Range
Minimum On Pulse Width
Minimum Off Pulse Width
High Threshold
Low Threshold
SYNC Output
Frequency on SYNC Pin
Positive Pulse Time
SOFT START (SSx PINS)
SSx Pin Source Current
Symbol
V
PVIN
I
Q
I
SHDN
UVLO
Test Conditions/Comments
Min
4.5
MODE = GND, no switching
EN1 = EN2 = GND
3
30
4.2
3.7
0.6
0.01
500
65
65
5
300
100
48
8
4.8
50
130
150
C
DL
= 2.2 nF, see Figure 23
C
DL
= 2.2 nF, see Figure 26
20
10
4
1.4
510
250
600
Typ
Data Sheet
Max
20
5
40
4.4
Unit
V
mA
μA
V
V
V
μA
μS
μA
μA
V
mV
mA
mΩ
A
A
mV
ns
ns
ns
ns
Ω
Ω
kHz
kHz
3.5
V
FB
I
FB
g
m
I
SOURCE
I
SINK
PVINx = 4.5 V to 20 V
0.594
0.606
0.1
630
90
85
5.25
120
80
9.6
6.2
370
40
45
4.75
I
INTVCC
= 30 mA
80
V
BST
to V
SW
= 5 V
R
ILIM
= floating, V
BST
to V
SW
= 5 V
R
ILIM
= 47 kΩ, V
BST
to V
SW
= 5 V
6.4
3.4
t
MIN_ON
t
MIN_OFF
t
R
t
F
6
3
690
1200
f
SW
R
OSC
= 100 kΩ
SYNC configured as input
300
100
100
1.3
SYNC configured as output
f
CLKOUT
100
I
SS
2.5
3.5
4.5
f
SW
kHz
ns
μA
1200
kHz
ns
ns
V
V
0.4
Rev. 0 | Page 4 of 32
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