SP6650 Datasheet, PDF (3/17 Pages) Sipex Corporation – High Efficiency 600mA Synchronous Buck Regulator Ideal for portable designs powered with Li Ion battery

SPECIFICATIONS (continued)
Specifications
apply
for
-40°C
to
+85°C,
V
OUT
=
3.3V,
V
IN
=
3.6V,
I
LIM
=
SHDN
=
V,
IN
FB
=
GND,
L1
=
22µH,
C
OUT
=
C
IN
=
47µF,
unless
otherwise
noted.
PARAMETER
MIN. TYP. MAX. UNITS CONDITIONS
Falling BLON Trip Voltage
2.88 3.00 3.12
V
BLON Trip Voltage Hysteresis
2.9
%
BLON Low Output Voltage
BLON Leakage Current
Rising Over-Temperature Trip
Point
0.4
1
140
V
V_IN = V_OUT = 3.0V,
I_SINK = 1mA
µA V_BLON = 3.3V
°C
Over-Temperature Hysteresis
14
°C
SHDN, ILIM Leakage Current
1
500
nA
SHDN, ILIM Input Threshold
Voltage
0.60 0.90 1.8
0.60 1.25 1.8
V High to Low Transition
V Low to High Transition
V_OUT
FB
SHDN
I_LIM
GND
V_IN
Internal
Supply
Min
T_OFF
V_IN
Min
T_ON
REF
+
C
-
+ REF/2
C
-
UVLO
TSD
Ref
Block
REF
REF/2
I_LIM/M
V_IN
REF
+
C
-
UVLO
BLOCK DIAGRAM
PVIN
M
1
+
C
- overcurrent
I_LIM/M
LX
+
C
-
Q
V_IN
D
Q
CLR
PGND
SHDN
BLON
Date: 5/25/04
SP6650 High Efficiency 600mA Synchronous Buck Regulator
3
© Copyright 2004 Sipex Corporation