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ADP1877ACPZ-R7 데이터시트(PDF) 5 Page - Analog Devices

부품명 ADP1877ACPZ-R7
상세설명  Dual Output Synchronous Buck PWM Controller With Tracking
PDF  32 Pages
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제조업체  AD [Analog Devices]
홈페이지  http://www.analog.com
Logo AD - Analog Devices

ADP1877ACPZ-R7 데이터시트(HTML) 5 Page - Analog Devices

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ADP1877
Rev. 0 | Page 5 of 32
Parameter
Symbol
Conditions
Min
Typ
Max
Units
PGOOD
PGOOD Pull-up Resistor
RPGOOD
Internal pull-up resistor to VCCO
12.5
kΩ
PGOOD Delay
12
μs
Overvoltage or Undervoltage
This is the minimum duration required to trip
the PGOOD signal.
12
μs
Minimum Duration
ILIM1, ILIM2 Threshold Voltage1
Relative to PGND
−5
0
+5
mV
ILIM1, ILIM2 Output Current
ILIM = PGND
40
50
60
μA
Current Sense Blanking Period
After DL goes high, current limit is not sensed
during this period.
100
ns
INTEGRATED RECTIFIER
(BOOST DIODE) RESISTANCE
At 20 mA forward current
16
Ω
ZERO CURRENT CROSS OFFSET
(SW TO PGND)1
In pulse skip mode only; fOSC = 600 kHz
0
2
4
mV
1 Guaranteed by design.
2 Connect VIN to VCCO when VIN < 5.5 V. For applications with VIN < 5.5 V and VIN not connected to VCCO, keep in mind that VCCO = VIN − VDROPOUT. VCCO must be ≥
2.75 V for proper operation.



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