LTC3401 Linear Technology, LTC3401 Datasheet - Page 3

• Manufacturer Part Number: LTC3401
• Description: 1A/ 3MHz Micropower Synchronous Boost Converter
• Manufacturer: Linear Technology

ELECTRICAL CHARACTERISTICS
The
V
PARAMETER
PGOOD Low Voltage
PGOOD Leakage
SHDN Input High
SHDN Input Low
SHDN Input Current
Thermal Shutdown
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC3401 is guaranteed to meet performance specifications
from 0 C to 70 C. Specifications over the –40 C to 85 C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
TYPICAL PERFOR A CE CHARACTERISTICS
1V/DIV
IN
SW
= 1.2V, V
Switching Waveform on SW Pin
denotes specifications that apply over the full operating temperature range, otherwise specifications are at T
OUT
= 3.3V unless otherwise noted.
50ns/DIV
W
3401 G01
U
50mA/DIV
CONDITIONS
I
V
V
V
V
1V/DIV
PGOOD
OUT
PGOOD
SHDN
SHDN
SW
0A
0V
I
L
= 1V, I
= V
= 5.5V
= 1mA
SW Pin and Inductor Current (I
in Discontinuous Mode. Ringing
Control Circuitry Eliminates High
Frequency Ringing
= 5.5V
IN
PGOOD
= V
OUT
= 20 A
200ns/DIV
Note 3: Current is measured into V
bootstrapped to the V
supply by (V
Note 4: Once the output is started, the IC is not dependant upon the V
supply.
OUT
3401 G02
C
/V
)
IN
) • Efficiency. The outputs are not switching.
OUT
100mV/DIV
I
OUT
pin and in the application will reflect to the input
50mA
V
5mA
OUT
OUT
MIN
C
L = 3.3 H
f
Transient Response 5mA to 50mA
OSC
1
OUT
since the supply current is
= 1MHz
= 22 F
0.01
0.01
TYP
170
0.1
0.1
200 s/DIV
A
LTC3401
= 25 C.
MAX
0.2
0.4
0.4
1
1
UNITS
3401fa
IN
3
3401 G03
V
V
A
V
V
A
C