LTC3447EDD Linear Technology, LTC3447EDD Datasheet - Page 4

• Manufacturer Part Number: LTC3447EDD
• Description: IC CONV DC/DC SYNC BUCK 10DFN
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC3447EDD

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 1
• Voltage - Output: 0.69 ~ 2.05 V
• Current - Output: 600mA
• Frequency - Switching: 1MHz
• Voltage - Input: 2.5 ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-DFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -

LTC3447
TYPICAL PERFOR A CE CHARACTERISTICS
4
–0.1
–0.2
–0.3
–0.4
–0.5
1.12
1.10
1.08
1.06
1.04
1.02
1.00
0.98
0.96
0.94
0.92
100
0.5
0.4
0.3
0.2
0.1
90
80
70
60
50
40
30
20
10
0
0
2.5
EffIciency and Power Loss vs
Load Current (V
1
Frequency vs Supply Voltage
DAC Nonlinearity
0
10
V
LOAD CURRENT (mA)
SUPPLY VOLTAGE (V)
OUTMAX
20
10
3.5
LOSS
IN
30
DAC
= 2.5V)
MAX
LOSS
V
40
100
OUTMIN
4.5
MIN
DNL
W
50
INL
3447 G03
3447 G07
3447 G04
60
1000
U
5.5
1000
100
10
1
100
90
80
70
60
50
40
30
20
10
0
1.30
1.24
1.18
1.12
1.06
1.00
0.94
0.88
0.82
0.76
0.70
1
Effi ciency and Power Loss vs
Load Current (V
1.95
1.90
2.10
2.05
2.00
–40 –20
Frequency vs Temperature
0
Output Voltage vs Load Current
DAC = MAX
DAC = MIN
V
OUTMAX
LOSS
LOAD CURRENT (mA)
200
0
10
TEMPERATURE (°C)
MAX
LOSS
V
LOAD CURRENT (mA)
20
OUTMIN
IN
MIN
400
= 5.5V)
V
V
V
V
40
IN
IN
IN
IN
= 3.6V
= 2.5V
= 3.6V
= 2.5V
100
60
600
80 100 120
3447 GO1
800
1000
3447 G08
1000
100
10
1
3447 G05
1000
0.80
0.75
0.70
0.65
0.60
100
360
310
260
210
160
90
80
70
60
50
40
30
20
10
0
–40 –20
EffIciency and Power Loss vs
Load Current (V
1
Bias Current and Shutdown
Current vs Temperature
BIAS CURRENT
SHUTDOWN CURRENT
350
300
250
200
150
100
50
0
2.5
Bias Current vs Supply Voltage
BURST
V
PULSE SKIP
OUTMAX
V
V
0
IN
IN
LOAD CURRENT (mA)
TEMPERATURE (°C)
10
= 3.6V
= 3.6V
20
V
SUPPLY VOLTAGE (V)
OUTMIN
3.5
LOSS
IN
40
= 3.6V)
V
V
MAX
IN
60
LOSS
IN
= 5.5V
100
= 5.5V
80 100 120
V
MIN
V
IN
IN
4.5
= 2.5V
= 2.5V
3447 G09
3447 G02
1000
1000
100
10
1
3447 G06
3.0
2.5
2.0
1.5
1.0
0.5
0
3447f
5.5