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.
ILC6377SO-33
ILC6377SO-33
VIN = 4V, IOUT = 100mA - 100µA
VIN = 4V, IOUT = 100µA - 100mA
Output Voltage
500
400
3.4
3.4
500
400
3.3
3.3
Output Voltage
300
200
300
200
3.2
3.1
3.2
3.1
Output Current
Output Current
100
0
100mA
3.0
100mA
100µA
100
0
3.0
2.9
100µA
2.9
TIME (0.5msec/div)
TIME (0.5msec/div)
ILC6377SO-33
ILC6377SO-33
VIN = 4V, IOUT = 300mA - 100µA
VIN = 4V, IOUT = 100µA - 100mA
Output Voltage
500
400
3.4
3.3
3.4
3.3
500
400
Output Voltage
Output Current
300
200
300
200
3.2
3.1
3.2
3.1
Output Current
300mA
300mA
100µA
100
0
3.0
2.9
100
0
3.0
2.9
100µA
TIME (0.5msec/div)
TIME (0.5msec/div)
ILC6377SO-33
ILC6377SO-33
VIN = 4V, IOUT = 300mA - 10mA
VIN = 4V, IOUT = 10mA - 300mA
500
400
3.4
3.3
500
400
Output Voltage
Output Voltage
Output Current
300
200
300
200
3.2
3.1
Output Current
300mA
100µA
300mA
100
0
3.0
2.9
100
0
100µA
TIME (0.5msec/div)
TIME (0.5msec/div)
Impala Linear Corporation
ILC6377 1.3
www.impalalinear.com
(408) 574-3939
June 1999
11
IMPALA [ Impala Linear Corporation ]
