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ADP1828YRQZ-R7 数据表(PDF) 3 Page - Analog Devices

部件名 ADP1828YRQZ-R7
功能描述  Synchronous Buck PWM, Step-Down, DC-to-DC Controller
PDF  32 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADP1828YRQZ-R7 数据表(HTML) 3 Page - Analog Devices

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ADP1828
Rev. 0 | Page 3 of 32
SPECIFICATIONS
IN = 12 V, PV = VEN = VTRK = 5 V, SYNC = GND, unless otherwise specified. All limits at temperature extremes are guaranteed via corre-
lation using standard statistical quality control (SQC). TJ = −40°C to +125°C, unless otherwise specified. Typical values are at TA = 25°C.
Table 1.
Parameter
Conditions
Min
Typ
Max
Unit
POWER SUPPLY
IN Input Voltage
PV is tied to VREG, IN is not tied to VREG (using internal regulator)
5.5
18
V
IN Input Voltage
IN = PV = VREG, IN is tied to VREG (not using internal regulator)
3.0
5.5
V
IN Quiescent Current
Not switching, IVREG = 0 mA
1.5
3.0
mA
IN Shutdown Current
EN = GND
5
15
μA
VREG-to-GND Shutdown Impedance
EN = GND, IN is not tied to VREG
1.6
MΩ
VREG Undervoltage Lockout Threshold
VREG rising
2.4
2.7
3.0
V
VREG Undervoltage Lockout Hysteresis
VREG falling
0.125
V
ERROR AMPLIFER
FB Regulation Voltage
TA = 25°C, TRK > 700 mV
597
600
603
mV
TA = 0°C to +70°C, TRK > 700 mV
595
605
mV
TJ = −40°C to +125°C, TRK > 700 mV
591
609
mV
FB Input Bias Current
5
100
nA
Open-Loop Voltage Gain
70
dB
Gain-Bandwidth Product
20
MHz
COMP Sink Current
600
μA
COMP Source Current
120
μA
COMP Clamp High Voltage
IN = VREG = 3V
2.4
V
IN = 12 V
3.6
V
COMP Clamp Low Voltage
0.75
V
LINEAR REGULATOR
VREG Output Voltage
IN = 5 V+ dropout voltage to 18 V, IVREG =100 mA
TJ = −40°C to +125°C
4.75
5.0
5.25
V
VREG Load Regulation
IVREG = 0 mA to 100 mA, IN = 5.25 V to 18 V
−10
mV
VREG Line Regulation
IN = 5 V+ dropout voltage to 18 V, no load
1
mV
VREG Current Limit
VREG drops to 4 V
220
mA
VREG Short-Circuit Current
VREG drops to 0.4 V
60
140
200
mA
IN to VREG Dropout Voltage1
IVREG = 100 mA, IN < 5 V
0.6
1.0
V
VREG Minimum Output Capacitance
1
μF
PWM CONTROLLER
VRAMP Peak-to-Peak Voltage2
0.7
1.0
1.45
V
DH Maximum Duty Cycle
FREQ = GND (300 kHz)
91
93
%
DH Minimum On Time
Any frequency
100
ns
DL Minimum On Time
Any frequency
200
ns
SOFT START
SS Pull-Up Resistance
SS = GND
90
kΩ
SS Pull-Down Resistance
SS = 0.6 V
6
kΩ
SS to FB Offset Voltage
SS = 0 mV to 500 mV
−45
mV
SS Pull-Up Voltage
0.8
V
TRACKING
TRK Common-Mode Input Voltage Range
0
600
mV
TRK to FB Offset Voltage
TRK = 0 mV to 500 mV
−5.5
+5
mV
TRK Input Bias Current
100
nA



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