參數(shù)資料
型號(hào): LT3493EDCB-3#TR
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 2.2 A SWITCHING REGULATOR, 815 kHz SWITCHING FREQ-MAX, PDSO6
封裝: 2 X 3 MM, PLASTIC, MO-229, DFN-6
文件頁(yè)數(shù): 15/20頁(yè)
文件大?。?/td> 401K
代理商: LT3493EDCB-3#TR
4
LT3493-3
3493-3f
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Maximum Load Current,
VOUT = 5V, L = 8.2H
Switch Voltage Drop
Undervoltage Lockout
Maximum Load Current,
VOUT = 3.3V, L = 4.7H
Switching Frequency
Frequency Foldback
VIN (V)
8
1.60
1.50
1.40
1.30
1.20
1.10
1.00
0.90
20
28
3493-3 G04
12
16
24
OUTPUT
CURRENT
(A)
TYPICAL
MINIMUM
VIN (V)
5
1.40
1.50
1.60
25
3493-3 G05
1.30
1.20
10
15
20
30
1.10
1.00
0.90
OUTPUT
CURRENT
(A)
TYPICAL
MINIMUM
SWITCH CURRENT (A)
0
V
CE(SW)
(mV)
150
450
500
550
0.4
0.8 1.0
3493-3 G06
50
350
250
100
400
0
300
200
0.2
0.6
1.4
1.2
1.6 1.8
TA = 25°C
TA = 85°C
TA = –40°C
TEMPERATURE (
°C)
FREQUENCY
(kHz) 720
760
800
3493-3 G09
680
640
700
740
780
660
620
600
–25
–50
25
0
75
100
50
Soft-Start
SHDN PIN VOLTAGE (V)
0
SWITCH
CURRENT
LIMIT
(A)
0.2
0.6
0.8
1.0
2.0
1.4
0.50
1
1.25
3493-3 G13
0.4
1.6
1.8
1.2
0.25
0.75
1.50 1.75
2
FEEDBACK VOLTAGE (mV)
0
SWITCHING
FREQUENCY
(kHz)
400
600
800
3493-3 G11
200
0
200
400
600
100
300
500
700
800
300
500
100
700
VIN (V)
8
1.60
1.50
1.40
1.30
1.20
1.10
1.00
0.90
20
28
3493-3 G22
12
16
24
OUTPUT
CURRENT
(A)
TYPICAL
MINIMUM
Maximum Load Current,
VOUT = 5V, L = 33H
VIN (V)
5
1.40
1.50
1.60
25
3493-3 G21
1.30
1.20
10
15
20
30
1.10
1.00
0.90
OUTPUT
CURRENT
(A)
TYPICAL
MINIMUM
Maximum Load Current,
VOUT = 3.3V, L = 10H
TA = 25°C unless otherwise noted.
TEMPERATURE (
°C)
UVLO
(V)
6.6
6.8
7.0
3493-3 G07
6.4
6.2
6.5
6.7
6.9
6.3
6.1
6.0
–25
–50
25
0
75
100
50
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