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LTC3129 Datasheet(PDF) 6 Page - Linear Technology

Part # LTC3129
Description  15V, 200mA Synchronous Buck-Boost DC/DC Converter with 1.3關A Quiescent Current
PDF  30 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3129 Datasheet(HTML) 6 Page - Linear Technology

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LTC3129
6
3129fc
For more information www.linear.com/LTC3129
Typical perForMance characTerisTics
Accurate RUN Threshold
vs Temperature (Normalized to 25°C)
Maximum Output Current
vs Temperature (Normalized to 25°C)
VCC Dropout Voltage vs Temperature
(PWM Mode, Switching)
VCC Dropout Voltage vs VIN
(PWM Mode, Switching)
Fixed Frequency PWM
Waveforms
TA = 25°C, unless otherwise noted.
Average Input Current Limit
vs MPPC Voltage
Burst Mode Threshold
vs VIN and VOUT
Switch RDS(ON) vs Temperature
TEMPERATURE (°C)
–45
1.3
1.2
1.1
1.0
0.8
0.7
0.6
0.5
0.9
0.4
–20
3129 G14
130
55
105
80
30
5
VCC = 2.5V
VCC = 3V
VCC = 4V
VCC = 5V
FB Voltage vs Temperature
(Normalized to 25°C)
VIN (V)
2
80
70
60
40
30
20
10
50
0
4
3129 G13
16
10
14
12
8
6
VOUT = 2.5V
VOUT = 3.3V
VOUT = 4.1V
VOUT = 5V
VOUT = 6.9V
VOUT = 8.2V
VOUT = 12V
VOUT = 15V
TEMPERATURE (°C)
–45
1.00
0.50
0.75
0
–0.50
–0.75
–0.25
0.25
–1.00
–20
3129 G15
130
55
105
80
30
5
TEMPERATURE (°C)
–45
2
0
–1
1
–2
–20
3129 G16
130
55
105
80
30
5
MPPC PIN VOLTAGE (V)
1.13
100
90
70
60
50
40
30
20
10
80
0
1.135
3129 G17
1.17
1.165
1.16
1.155
1.145 1.15
1.14
TEMPERATURE (°C)
–45
15
10
0
–5
5
–15
–10
–20
3129 G18
130
55
105
80
30
5
TEMPERATURE (°C)
–45
60
50
30
20
40
0
10
–20
3129 G19
130
55
105
80
30
5
VIN (V)
2
60
50
30
20
40
0
10
2.25
3129 G20
4
3
3.5 3.75
3.25
2.75
2.5
L = 10µH
VIN = 7V
VOUT = 5V
IOUT = 200mA
SW2
5V/DIV
SW1
5V/DIV
3129 G21
500ns/DIV
IL
200mA/DIV



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