參數(shù)資料
型號(hào): LTC3458L
廠商: Linear Technology Corporation
英文描述: 1.7A, 1.5MHz Synchronous Step-Up DC/DC Converter with Output Disconnect
中文描述: 1.7A,1.5MHz同步升壓型DC / DC轉(zhuǎn)換器輸出斷開
文件頁數(shù): 6/16頁
文件大小: 389K
代理商: LTC3458L
LTC3458L
6
3458lf
TYPICAL PERFOR U
FF Mode 100-300mA Load Step
Sync Operation at 1.33MHz
Burst Mode Operation 10mA to
50mA Load Step
Auto Mode 10mA to 100mA Load
Step
10mA to 200mA Load Step
Showing UV Trip
Forced BURST to FF Mode
Switch with 50mA Load
BURST
1V/DIV
V
200mV/DIV
LOAD
I
L
200mA/DIV
500
μ
s/DIV
100mA
10mA
V
200mV/DIV
V
200mV/DIV
I
L
200mA/DIV
I
L
500mA/DIV
200
μ
s/DIV
200
μ
s/DIV
FIXED
FREQUENCY
BURST
–4%
SW
5V/DIV
SYNC
2V/DIV
I
L
200mA/DIV
500ns/DIV
COMP
500mV/DIV
BURST
500mV/DIV
V
200mV/DIV
V
200mV/DIV
LOAD
I
L
200mA/DIV
I
L
0.5A/DIV
200
μ
s/DIV
200
μ
s/DIV
50mA
10mA
V
IN
= 3.3V
V
OUT
= 5V
R
T
= 200k
V
IN
= 3.3V
V
OUT
= 5V
L = 10
μ
H
C
OUT
= 22
μ
F
R
ILIM
= 110k
V
IN
= 3.3V
V
OUT
= 5V
L = 10
μ
H
C
BURST
= 0.015
μ
F
R
BURST
= 133k
R
ILIM
= 110k
V
IN
= 3.3V
V
= 5V
L = 10
μ
H
C
BURST
= 0.015
μ
F
R
BURST
= 133k
R
ILIM
= 110k
V
IN
= 3.3V
V
OUT
= 5V
R
= 33K
CC1 = 270pF
CC2 = 10pF
C
OUT
= 22
μ
F
0mA
0mA
V
IN
= 3.3V
V
= 5V
L = 10
μ
H
R
Z
= 33k
CC1 = 270pF
CC2 = 10pF
C
OUT
= 22
μ
F
R
ILIM
= 110k
L = 10
μ
H
F = 1MHz
3458L G20
3458L G21
3458L G22
3458L G23
3458L G24
3458L G25
(T
A
= 25
°
C unless otherwise specified)
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