參數(shù)資料
型號(hào): LTC3546IUFD#TR
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: DUAL SWITCHING CONTROLLER, 4000 kHz SWITCHING FREQ-MAX, PQCC28
封裝: 4 X 5 MM, PLASTIC, MO-220, QFN-28
文件頁(yè)數(shù): 25/28頁(yè)
文件大?。?/td> 356K
代理商: LTC3546IUFD#TR
LTC3546
6
3546fb
OUT2 Burst Mode Operation
OUT2 Pulse-Skipping Mode
Operation
OUT2 Forced Continuous Mode
Operation
OUT1 Efciency vs Load Current
OUT2 Efciency vs Load Current
OUT1 Efciency vs VIN
1μs/DIV
VOUT
20mV/DIV
ILOAD
500mA/DIV
3546 G11
SW1D CONNECTED TO SW1
VIN = 3.6V
VOUT = 2.5V
ILOAD = 300mA
1μs/DIV
VOUT
20mV/DIV
ILOAD
250mA/DIV
3546 G12
SW1D CONNECTED TO SW1
VIN = 3.6V
VOUT = 1.8V
ILOAD = 200mA
1μs/DIV
VOUT
20mV/DIV
ILOAD
250mA/DIV
3546 G13
SW1D CONNECTED TO SW1
VIN = 3.6V
VOUT = 1.8V
ILOAD = 100mA
ILOAD (A)
0.001
EFFICIENCY
(%)
95
90
85
80
75
70
65
60
0.1
3546 G14
10
0.01
1
SW1D CONNECTED TO SW1
VIN = 3.6V
VOUT = 1.8V
Burst Mode
OPERATION
PULSE SKIP
FORCED
CONTINUOUS
ILOAD (A)
0.001
EFFICIENCY
(%)
95
90
85
80
75
70
60
65
0.1
3546 G15
1
0.01
SW1D CONNECTED TO SW2
VIN = 3.6V
VOUT = 1.8V
Burst Mode
OPERATION
PULSE SKIP
FORCED
CONTINUOUS
ILOAD (A)
0.001
EFFICIENCY
(%)
100
95
90
85
80
75
70
65
60
0.1
3546 G16
10
0.01
1
SW1D CONNECTED TO SW2
VIN = 3.6V
VOUT = 2.5V
Burst Mode
OPERATION
PULSE SKIP
FORCED
CONTINUOUS
ILOAD (A)
0.001
EFFICIENCY
(%)
100
95
90
85
80
75
70
65
60
0.1
3546 G17
10
0.01
1
SW1D CONNECTED TO SW1
VIN = 3.6V
VOUT = 2.5V
Burst Mode
OPERATION
PULSE SKIP
FORCED
CONTINUOUS
VIN (V)
EFFICIENCY
(%)
100
82
98
94
90
86
96
92
88
84
80
4.25
4.75
3.75
3546 G18
5.25
3.25
2.75
2.25
400mA
2A
SW1D CONNECTED TO SW1
VOUT = 1.8V
3546 G19
200mA
1A
100
82
98
94
90
86
96
92
88
84
80
4.25
4.75
3.75
5.25
3.25
2.75
2.25
SW1D CONNECTED TO SW2
VOUT = 1.8V
VIN (V)
EFFICIENCY
(%)
TYPICAL PERFORMANCE CHARACTERISTICS
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