ELECTRICAL CHARACTERISTICS
V
IN
=PV
IN
=V
SDN
=3.6V, V
OUT
=V
FB
, I
O
= 0mA, T
AMB
= -40°C to +85°C, The
♦
denotes the specifications wich apply over
the full operating temperature range, unless otherwise specified.
PARAMETER
MIN
2.55
UVLO Undervoltage Lockout
Threshold, V
IN
falling
2.70
2.85
UVLO hysteresis
PWRGD Low Output Voltage
PWRGD Leakage Current
PWRGD Rising Threshold
PWRGD Hysterisis
D1,D0 Leakage Current
0.60
D1,D0 Input Threshold Voltage
1.25
FB Leakage Current
1
1.8
100
nA
-6
80
1
0.90
V
♦
TYP
2.70
2.85
3.00
40
MAX
2.85
3.00
3.15
UNITS
♦
CONDITIONS
D1 = 0V, D0 = V
IN
D1 = V
IN
, D0 = 0V
D1 = V
IN
, D0 = V
IN
T
AMB
= 27° C
♦
♦
V
♦
♦
mV
0.4
1
V
µA
%
mV
500
nA
♦
♦
V
IN
= 3.3V, I
SINK
= 1mA
VPWRGD =3.6V
FB Set Voltage -6%,
T
AMB
=27° C
T
AMB
=27° C
High to Low Transition
Low to High Transition
FB = 1V
D1
0
0
1
1
D0
0
1
0
1
Shutdown. All internal circuitry is disabled and the power switches are opened.
Device enabled, falling UVLO threshold =2.70V
Device enabled, falling UVLO threshold =2.85V
Device enabled, falling UVLO threshold =3.00V
Table 1. Operating Mode Definition
Date: 2/1/05
SP6654 High Efficiency 800mA Synchronous Buck Regulator
© Copyright 2005 Sipex Corporation
3
SIPEX [ SIPEX CORPORATION ]
