ADP1853 Datasheet, PDF (5/28 Pages) Analog Devices – Synchronous, Step-Down DC-to-DC Controller

Data Sheet
ADP1853
Parameter
PGOOD
PGOOD Pull-Up Resistor
PGOOD Delay
Overvoltage or Undervoltage
Minimum Duration
ILIM Threshold Voltage¹
ILIM Output Current
Current Sense Blanking Period
INTEGRATED RECTIFIER
(BOOST DIODE) RESISTANCE
ZERO CURRENT CROSS OFFSET
(SW TO PGND)¹
1 _{Guaranteed by design.}
2 _{Connect VIN to VCCO when VIN < 5.5 V.}
Symbol
R_PGOOD
Test Conditions/Comments
Min
Internal pull-up resistor to VCCO
This is the minimum duration required to trip
the PGOOD signal
Relative to PGND
−5
ILIM = PGND
45
After DL goes high, current limit is not sensed
during this period
At 20 mA forward current
In pulse skip mode only; f_OSC = 300 kHz
0
Typ Max Unit
12.5
kΩ
12
µs
10
µs
0
+5
mV
50
55
µA
100
ns
16
Ω
2
4
mV
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