0.5A, 300kHz, SO-8 PWM/PFM Step Down Converter with Shutdown
Typical Performance Characteristics
General conditions for all curves: Circuit of figure 1; L = 20µH (Sumida, CD54), CIN = 47µF (tantalum) with 0.1µF (ceramic),
CL = 47µH (tantalum) MA735 (Matsushita) schottky diode, CSS = 4700pF (ceramic), TA = 25°C unless otherwise noted.
OUTPUT vs. AMBIENT TEMPERATURE
SUPPLY CURRENT vs. AMBIENT TEMPERATURE
ILC6377SO-33
ILC6377SO-33
3.40
3.40
3.35
3.30
3.35
3.30
VOUT1
VOUT1
VOUT2
3.25
3.20
3.25
3.20
-40
-20
0
20
40
60
80
-40
-20
0
20
40
60
80
AMBIENT TEMP.: Ta(°C)
AMBIENT TEMP.: Ta(°C)
STAND-BY CURRENT vs. AMBIENT TEMPERATURE
LX ON RESISTANCE vs. AMBIENT TEMPERATURE
ILC6377SO-33
ILC6377SO-33
3.40
3.40
3.35
3.30
3.35
3.30
3.25
3.20
3.25
3.20
-40
-20
0
20
40
60
80
-40
-20
0
20
40
60
80
AMBIENT TEMP.: Ta(°C)
AMBIENT TEMP.: Ta(°C)
OSCILLATION FREQUENCY vs. AMBIENT TEMPERATURE
PFM DUTY RATIO vs. AMBIENT TEMPERATURE
ILC6377SO-33
ILC6377SO-33
3.40
3.40
3.35
3.30
3.35
3.30
3.25
3.20
3.25
3.20
-40
-20
0
20
40
60
80
-40
-20
0
20
40
60
80
AMBIENT TEMP.: Ta(°C)
AMBIENT TEMP.: Ta(°C)
Impala Linear Corporation
ILC6377 1.3
www.impalalinear.com
(408) 574-3939
June 1999
9
IMPALA [ Impala Linear Corporation ]
