SOT-89 Step-Up PFM Switcher with Auto-Load Sense
Application Circuits
CE
SD
VOUT
3
1
3
3
4
2
1
L
L
+
CL
ILC6390CM
ILC6390CP
VIN
VIN
1
2
5
VOUT
+
SD
GND
CL
CE
GND
L: 100µH (SUMIDA, CD-54
SD: Diode (Schottky diode; MATSUSHITA MA 735)
CL: 16V 47µF (Tantalum Capacitor; NICHICON, f93)
CE
CE
SD
SD
VOUT
VOUT
3
4
2
1
3
4
2
1
L
L
+
+
CL
CL
ILC6391CM
ILC6391CP
VIN
VIN
CB
RB
5
5
Tr
Tr
R
GND
GND
L: 47µH (SUMIDA, CD-54)
SD: Diode (Schottky diode; MATSUSHITA MA735)
CL: 16V 47µF (Tantalum Capacitor; NICHICON, F93)
RB: 1kΩ
CB: 3300pF
Tr: 2SC3279, 2SDI628G
Electrical Characteristics ILC6390
VOUT = 5.0V TA = 25°C. Unless otherwise specified, VIN = VOUT x 0.6, IOUT = 50mA. See schematic, fig. 3.
Parameter
Symbol
Conditions
Min
Typ
85
Max Units
Efficiency
EFFI
Test Circuit of Figure 3
%
Impala Linear Corporation
ILC6390 1.1
www.impalalinear.com
(408) 574-3939
Feb 2001
4
IMPALA [ Impala Linear Corporation ]
