ADP1823 Datasheet, PDF (3/32 Pages) Analog Devices – Dual, Interleaved, Step-Down DC-to-DC Controller with Tracking

ADP1823
SPECIFICATIONS
VIN = 12 V, EN = FREQ = PV = VREG = 5 V, SYNC = GND, TJ = −40°C to +125°C, unless otherwise specified. All limits at temperature
extremes are guaranteed via correlation using standard Statistical Quality Control (SQC). Typical values are at TA = 25°C.
Table 1.
Parameter
POWER SUPPLY
IN Input Voltage
IN Quiescent Current
IN Shutdown Current
VREG Undervoltage Lockout Threshold
VREG Undervoltage Lockout Hysteresis
ERROR AMPLIFER
FB1, FB2 Regulation Voltage
FB1, FB2 Input Bias Current
Open-Loop Voltage Gain
Gain-Bandwidth Product
COMP1, COMP2 Sink Current
COMP1, COMP2 Source Current
COMP1, COMP2 Clamp High Voltage
COMP1, COMP2 Clamp Low Voltage
LINEAR REGULATOR
VREG Output Voltage
VREG Load Regulation
VREG Line Regulation
VREG Current Limit
VREG Short-Circuit Current
IN to VREG Dropout Voltage
VREG Minimum Output Capacitance
PWM CONTROLLER
PWM Ramp Voltage Peak
DH1, DH2 Maximum Duty Cycle
DH1, DH2 Minimum Duty Cycle
SOFT START
SS1, SS2 Pull-Up Resistance
SS1, SS2 Pull-Down Resistance
SS1, SS2 to FB1, FB2 Offset Voltage
SS1, SS2 Pull-Up Voltage
TRACKING
TRK1, TRK2 Common-Mode Input
Voltage Range
TRK1, TRK2 to FB1, FB2 Offset Voltage
TRK1, TRK2 Input Bias Current
Conditions
PV = VREG (using internal regulator)
IN = PV = VREG (not using internal regulator)
Not switching, IVREG = 0 mA
EN1 = EN2 = GND
VREG rising
TA = 25°C, TRK1, TRK2 > 700 mV
TJ = 0°C to 85°C, TRK1, TRK2 > 700 mV
TJ = −40°C to +125°C, TRK1, TRK2 > 700 mV
TJ = 0°C to 70°C, TRK1, TRK2 > 700 mV
TA = 25°C, IVREG = 20 mA
VIN = 7 V to 20 V, IVREG = 0 mA to 100 mA,
TA = −40°C to +85°C
IVREG = 0 mA to 100 mA, VIN = 12 V
VIN = 7 V to 20 V, IVREG = 20 mA
VREG = 4 V
VREG < 0.5 V
IVREG = 100 mA
SYNC = GND
FREQ = GND (300 kHz)
FREQ = GND (300 kHz)
SS1, SS2 = GND
SS1, SS2 = 0.6 V
SS1, SS2 = 0 mV to 500 mV
TRK1, TRK2 = 0 mV to 500 mV
Min Typ Max Unit
5.5
20 V
2.9
5.5 V
1.5 3
mA
10
20 μA
2.4 2.7 2.9 V
0.125
V
597 600
591
588
595
70
20
600
120
2.4
0.75
603 mV
609 mV
612 mV
605 mV
100 nA
dB
MHz
μA
μA
V
V
4.85 5.0
4.75 5.0
−40
1
220
100 140
0.7
1
5.15 V
5.25 V
mV
mV
mA
200 mA
1.4 V
μF
1.3
V
85 90
%
1
3
%
90
kΩ
6
kΩ
−45
mV
0.8
V
0
600 mV
−5
+5 mV
100 nA
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