參數(shù)資料
型號: LTC3538EDCB#TR
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 0.8 A SWITCHING REGULATOR, 1200 kHz SWITCHING FREQ-MAX, PDSO8
封裝: 2 X 3 MM, PLASTIC, DFN-8
文件頁數(shù): 11/16頁
文件大?。?/td> 206K
代理商: LTC3538EDCB#TR
LTC3538
4
3538fb
Error Amplier Source Current vs
Temperature
Oscillator Frequency vs
Temperature
Feedback Voltage vs Temperature
Feedback Voltage Line
Regulation
Minimum Start-Up Voltage
Switch Pins Before Entering
Buck Mode
VOUT Ripple in Buck, Buck-Boost
and Boost Modes at 500mA Load
Burst Mode Sleep Current vs
Temperature
TYPICAL PERFORMANCE CHARACTERISTICS T
A = 25°C unless otherwise noted
Maximum Output Current
Capability vs VIN
50ns/DIV
SW1
2V/DIV
SW2
2V/DIV
3538 G04
VIN = 3.9V
VOUT = 3.3V AT 500mA
TEMPERATURE (°C)
–50
20
Burst
Mode
SLEEP
CURRENT
(μA)
25
30
35
40
45
–25
0
25
50
3538 G16
75
100
TEMPERATURE (°C)
–50
–15.0
V
C
SOURCE
CURRENT
(
μ
A)
–14.5
–14.0
–13.5
–13.0
–12.5
–25
0
25
50
3538 G06
75
100
TEMPERATURE (°C)
–50
975
OSCILLA
TOR
FREQUENCY
(kHz)
1000
1025
–25
0
25
50
3538 G07
75
100
VIN = VOUT = 3.6V
TEMPERATURE (°C)
–50
0.990
FB
VOL
TAGE
(V)
1.010
1.005
1.000
0.995
–25
0
25
50
3538 G08
75
100
VIN (V)
2.0
2.5
3.0
3.5
4.0
5.0
4.5
0
OUTPUT
CURRENT
CAP
ABILIT
Y
(mA)
1800
1600
1400
1200
1000
600
400
200
800
3538 G17
5.5
VOUT = 3.3V
VIN (V)
2.4
–0.2
FB
LINE
REGULA
TION
(%)
0.4
0.2
0.1
0
–0.1
0.3
3.4
4.4
3538 G09
5.4
VOUT = 3.3V
TEMPERATURE (°C)
–50
2.3005
2.3010
2.3015
2.3020
2.3025
2.3030
2.3035
2.3040
V
IN
ST
AR
T
VOL
TAGE
(V)
2.3045
–25
0
25
50
3538 G10
75
100
1μs/DIV
3538 G05
VOUT = 3.3V, AC-COUPLED
20mV/DIV
COUT = 22μF
ILOAD = 500mA
VIN = 2.5V
VIN = 3.3V
VIN = 4.2V
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