LTC3423 LINEAR [Linear Integrated Systems], LTC3423 Datasheet - Page 3

• Manufacturer Part Number: LTC3423
• Description: Low Output Voltage 3MHz Micropower Synchronous Boost Converters
• Manufacturer: LINEAR [Linear Integrated Systems]

ELECTRICAL CHARACTERISTICS
The
V
PARAMETER
SHDN Input High
SHDN Input Low
SHDN Input Current
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC3423/LTC3424 are 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
IN
= 1.2V, V
AC COUPLED
100mV/DIV
denotes specifications that apply over the full operating temperature range, otherwise specifications are at T
0.5V/DIV
1V/DIV
V
SW
OUT
SW
0V
OUT
Burst Mode Operation
at 500 A Load
Switching Waveform on SW Pin
I
V
V
V
C
MODE/SYNC PIN = HIGH
LOAD
OUT
IN
OUT
OUT
= 3.3V unless otherwise noted.
= 1.2V
1.8V
= 1.8V
= 44 F
= 500mA
100ns/DIV
1ms/DIV
W
U
3423/24 G01
3423/24 G03
CONDITIONS
V
V
SHDN
SHDN
= V
= 5.5V
IN
= V
OUT
Note 3: Current is measured into V
bootstrapped to the V
Note 4: Once the output is started, the IC is not dependant upon the V
supply.
AC COUPLED
AC COUPLED
100mV/DIV
I
100mV/DIV
OUT
450mA
150mA
1V/DIV
V
V
OUT
OUT
SW
Burst Mode Operation
at 10mA Load
Transient Response
150mA to 450mA
C
L = 2.2 H
f
V
V
C
MODE/SYNC PIN = HIGH
OSC
OUT
IN
OUT
OUT
= 1.2V
= 1MHz
DD
= 44 F
= 1.8V
= 44 F
pin. The outputs are not switching.
LTC3423/LTC3424
200 s/DIV
500 s/DIV
DD
MIN
1
since the supply current is
0.01
TYP
3423/24 G02
3423/24 G04
A
= 25 C.
MAX
0.4
1
UNITS
34234f
IN
3
V
V
A