Datasheet

ADP1828
Rev. C | Page 5 of 36
Parameter Conditions Min Typ Max Unit
POWER GOOD
FB Overvoltage Threshold V
FB
rising 700 750 810 mV
FB Overvoltage Hysteresis 50 mV
FB Undervoltage Threshold V
FB
falling 500 550 585 mV
FB Undervoltage Hysteresis 50 mV
PGOOD Propagation Delay 8 s
PGOOD Off Leakage Current V
PGOOD
= 5.5 V 1 A
PGOOD Output Low Voltage I
PGOOD
= 10 mA 150 500 mV
1
Connect IN to VREG when IN < 5.5 V. For applications with IN < 5.5V and IN not connected to VREG, keep in mind that VREG = V
IN
– dropout. VREG needs to be ≥ 3 V for
proper operation.
2
V
RAMP
= 1.0 V × f
OSC
/f
SW
, where f
OSC
is the natural oscillator frequency and f
SW
is the actual switching frequency. If SYNC is not used, then f
OSC
= f
SW
. If SYNC is used,
then f
SW
= f
SYNC
.
3
With a 5 V drive, the peak source or sink current could be up to 2.5 A and 3.3 A, respectively, when driving external power MOSFETs. The duration of the peak current
pulse is generally in the order of 10 ns.
4
Guaranteed by design and characterization. Not subject to production test.