LTC1436A-PLL 데이터 시트보기 (PDF) - Linear Technology
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LTC1436A-PLL Datasheet PDF : 28 Pages
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LTC1436A
LTC1436A-PLL/LTC1437A
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Input Voltage
VOUT = 3.3V
100
VOUT = 3.3V
95
ILOAD = 1A
90
85
ILOAD = 100mA
80
75
70
0
5 10 15 20 25 30
INPUT VOLTAGE (V)
1436 G01
VIN – VOUT Dropout Voltage
vs Load Current
0.5
RSENSE = 0.033Ω
VOUT DROP OF 5%
0.4
0.3
0.2
0.1
Efficiency vs Input Voltage
VOUT = 5V
100
VOUT = 5V
95
ILOAD = 1A
90
ILOAD = 100mA
85
80
75
70
0
5 10 15 20 25 30
INPUT VOLTAGE (V)
1436 G02
Load Regulation
0
– 0.25
RSENSE = 0.033Ω
– 0.50
– 0.75
–1.00
–1.25
Efficiency vs Load Current
100
VIN = 10V
95 VOUT = 5V
90 RSENSE = 0.033Ω
85
80
CONTINUOUS
MODE
75
Burst ModeTM
OPERATION
70
65
Adaptive Power
60
MODE
55
50
0.001
0.01
0.1
1
10
LOAD CURRENT (A)
1435 G03
VITH Pin Voltage vs Output Current
3.0
2.5
2.0
1.5
Burst Mode
OPERATION
1.0
CONTINUOUS/Adaptive
Power MODE
0.5
0
0 0.5 1.0 1.5 2.0 2.5 3.0
LOAD CURRENT (A)
1436 G04
Input Supply Current
vs Input Voltage
2.5
100
2.0
80
1.5
VOUT = 5V
EXTVCC = VOUT
60
1.0
VOUT = 3.3V
40
EXTVCC = OPEN
0.5
20
SHUTDOWN
0
0
0 5 10 15 20 25 30
INPUT VOLTAGE (V)
1436 G07
Burst Mode is a trademark of Linear Technology Corporation.
–1.50
0
0.5 1.0 1.5 2.0 2.5 3.0
LOAD CURRENT (A)
1436 G05
INTVCC Regulation
vs INTVCC Load Current
0.5
VEXTVCC = 0V
0.3
70°C
0
25°C
– 0.3
– 0.5
0
5
10
15
INTVCC LOAD CURRENT (mA)
20
1436 G08
0
0 10 20 30 40 50 60 70 80 90 100
OUTPUT CURRENT (%)
1436 G06
EXTVCC Switch Drop
vs INTVCC Load Current
200
180
160
70°C
140
120
25°C
100
– 55°C
80
60
40
20
0
0 2 4 6 8 10 12 14 16 18 20
INTVCC LOAD CURRENT (mA)
1436 G09
5
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