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LTC7813 Datasheet(PDF) 8 Page - Analog Devices

Part # LTC7813
Description  Quad-Phase, Synchronous Bidirectional Buck or Boost Controller
PDF  48 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

LTC7813 Datasheet(HTML) 8 Page - Analog Devices

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LTC7872
8
Rev. 0
For more information www.analog.com
TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency Buck Mode
Power Loss Buck Mode
Efficiency Boost Mode
Power Loss Boost Mode
SS Pin Pull-Up Current
vs Temperature
RUN Pin Threshold
vs Temperature
Regulated Feedback Voltage
vs Temperature
Oscillator Frequency
vs Temperature
Undervoltage Lockout
Threshold (V5) vs Temperature
TA = 25°C, unless otherwise noted.
VHIGH = 48V
VLOW = 12V
FIGURE 18 CIRCUIT
LOAD CURRENT (A)
1
10
100 200
60
65
70
75
80
85
90
95
100
Efficiency Buck Mode
7872 G01
VHIGH = 48V
VLOW = 12V
FIGURE 18 CIRCUIT
LOAD CURRENT (A)
1
10
100 200
0
10
20
30
40
50
Power Loss Buck Mode
7872 G02
VHIGH = 48V
VLOW = 12V
FIGURE 18 CIRCUIT
LOAD CURRENT (A)
0.1
1
10
30
60
65
70
75
80
85
90
95
100
Efficiency Boost Mode
7872 G03
VHIGH = 48V
VLOW = 12V
FIGURE 18 CIRCUIT
LOAD CURRENT (A)
0.1
1
10
30
0
10
20
30
40
Power Loss Boost Mode
7872 G04
TEMPERATURE (°C)
–45 –20
5
30
55
80 105 130 155
0
0.4
0.8
1.2
1.6
2.0
Temperature
7872 G05
ON
OFF
TEMPERATURE (°C)
–45 –20
5
30
55
80 105 130 155
0.9
1.0
1.1
1.2
1.3
1.4
1.5
RUN Pin Threshold vs Temperature
7872 G06
VFBLOW
VFBHIGH
TEMPERATURE (°C)
–45 –20
5
30
55
80 105 130 155
1.194
1.196
1.198
1.200
1.202
1.204
1.206
7872 G07
TEMPERATURE (°C)
–45 –20
5
30
55
80 105 130 155
200
220
240
260
280
300
Temperature
7872 G08
RISING
TEMPERATURE (°C)
–45 –20
5
30
55
80 105 130 155
4.0
4.2
4.4
4.6
4.8
5.0
7872 G09



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