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ADP1876ACPZ-R7 Arkusz danych(PDF) 5 Page - Analog Devices

Numer części ADP1876ACPZ-R7
Szczegółowy opis  600 kHz Dual Output Synchronous Buck
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ADP1876ACPZ-R7 Arkusz danych(HTML) 5 Page - Analog Devices

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Data Sheet
ADP1876
Rev. A | Page 5 of 24
Parameter
Symbol
Test Conditions/Comments
Min
Typ
Max
Unit
DHx or DLx Driver RON, Sourcing
Current1
RON_SOURCE
Sourcing 2 A with a 100 ns pulse
2
Ω
Sourcing 1 A with a 100 ns pulse,
VIN = 3 V
2.3
Ω
DHx or DLx Driver RON, Tempco
TCRON
VIN = 3 V or 12 V
0.3
%/°C
DHx or DLx Driver RON, Sinking
Current1
RON_SINK
Sinking 2 A with a 100 ns pulse
1.5
Ω
Sinking 1 A with a 100 ns pulse,
VIN = 3 V
2
Ω
DHx Maximum Duty Cycle
fOSC = 600 kHz
76
%
Minimum DHx On Time
130
ns
Minimum DHx Off Time
340
ns
Minimum DLx On Time
290
ns
COMP VOLTAGE RANGE
VCOMP
0.85
2.3
V
THERMAL SHUTDOWN
Thermal Shutdown Threshold
TTMSD
155
°C
Thermal Shutdown Hysteresis
20
°C
OVERVOLTAGE AND POWER-GOOD
THRESHOLDS (FBx PINS)
FBx Overvoltage Threshold
VOV
VFB rising
0.67
0.7
0.73
V
FBx Overvoltage Hysteresis
40
mV
FBx Undervoltage Threshold
VUV
VFB rising
0.51
0.54
0.57
V
FBx Undervoltage Hysteresis
30
mV
FB1 TO TRK1 OFFSET VOLTAGE
TRK1 = 0.3 V to 0.55 V,
offset = VFB − VTRK
−120
+50
mV
SOFT START (SSx Pins)
SSx Output Current
ISS
During start-up
4.6
6.5
8.4
μA
SSx Pull-Down Resistor
During a fault condition
1
POWER GOOD (PGOODx Pins)
PGOODx Pull-up Resistor
RPGOOD
Internal pull-up resistor to VCCO
12.5
PGOODx Delay
12
μs
Overvoltage or Undervoltage
Minimum Duration
This is the minimum duration
required to trip the PGOODx signal
12
μs
ILIM1, ILIM2 Threshold Voltage1
Relative to PGNDx
−5
0
+5
mV
ILIM1, ILIM2 Output Current
ILIMx = PGNDx
40
50
60
μA
Current Sense Blanking Period
After DLx goes high, current limit is
not sensed during this period
100
ns
INTEGRATED RECTIFIER
(BOOST DIODE) RESISTANCE
At 20 mA forward current
16
Ω
INDEPENDENT LOW DROPOUT
LINEAR REGULATOR
VINLDO Voltage Range
VINLDO
Input range
2.7
5.5
V
VOUTLDO Voltage
VOUTLDO
VINLDO = 2.7 V to 5.5 V, IOUTLDO = 1 mA to
150 mA
1.47
1.5
1.53
V
VOUTLDO Maximum Load
VOUTLDO
VINLDO = 2.7 V to 5.5 V
150
mA
Quiescent Current
IINLDO
VINLDO = 2.7 V to 5.5 V, no load at
output
30
60
μA
Line Regulation
ΔVOUTLDO
IOUTLDO = 150 mA, VINLDO = 2.7 V to 5.5 V
0.3
%
Load Regulation
ΔVOUTLDO
VINLDO = 2.7 V to 5.5 V, IOUTLDO = 1 mA to
150 mA
0.4
%
Power Supply Rejection Ratio
PSRR
1 kHz, VINDLO = 2.7 V to 5.5 V,
10 mA load
70
dB


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