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LT8612EUDE#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
LT8612
4
8612f
For more information www.linear.com/LT8612
Typical perForMance characTerisTics
Efficiency at 3.3V
OUT
Efficiency vs Frequency Reference Voltage
EN/UV Pin Thresholds Load Regulation Line Regulation
Efficiency at 5V
OUT
Efficiency at 3.3V
OUT
Efficiency at 5V
OUT
TEMPERATURE (°C)
–55
0.955
REFERENCE VOLTAGE (V)
0.958
0.964
0.967
0.970
0.985
0.976
5
65
95 125
8612 G06
0.961
0.979
0.982
0.973
–25
35
155
LOAD CURRENT (A)
0.00001
EFFICIENCY (%)
50
60
100
0.001
0.1
1 10
8612 G03
40
80
90
70
0.0001
0.01
f
SW
= 700kHz
L = 3.9µH
V
IN
= 24V
V
IN
= 12V
INPUT VOLTAGE (V)
0
CHANGE IN V
OUT
(%)
0.02
0.06
0.10
40
8612 G09
–0.02
–0.06
0
0.04
0.08
–0.04
–0.08
–0.10
10
20
30 50
V
OUT
= 5V
LOAD = 1A
TEMPERATURE (°C)
–55
0.95
EN/UV THRESHOLD (V)
0.96
0.98
0.99
1.00
75
8612 G07
0.97
250
–25
100 125
50 150
1.01
1.02
EN/UV RISING
EN/UV FALLING
OUTPUT LOAD (A)
0
LOAD REGULATION (%)
–0.4
–0.3
–0.1
–0.2
0
0.5
0.2
2
4
5 6
8612 G08
–0.5
0.3
0.4
0.1
1
3
LOAD CURRENT (A)
0
EFFICIENCY (%)
65
70
75
100
85
2
4
5 6
8612 G01
60
90
95
80
1
3
f
SW
= 700kHz
L = 3.9µH, EPCOS B82559
V
IN
= 24V
V
IN
= 12V
FREQUENCY (kHz)
0
EFFICIENCY (%)
75
80
100
90
1000
1500
2000 2500
8612 G05
70
95
85
500
V
OUT
= 3.3V
V
IN
= 12V
L = 3.9µH
LOAD = 2A
LOAD CURRENT (A)
0.00001
EFFICIENCY (%)
50
60
100
0.001
0.1
1 10
8612 G04
40
80
90
70
0.0001
0.01
f
SW
= 700kHz
L = 3.9µH
V
IN
= 24V
V
IN
= 12V
LOAD CURRENT (A)
0
EFFICIENCY (%)
65
70
75
100
85
2
4
5 6
8612 G02
60
90
95
80
1
3
f
SW
= 700kHz
L = 3.9µH, EPCOS B82559
V
IN
= 24V
V
IN
= 12V
LT8612
5
8612f
For more information www.linear.com/LT8612
Typical perForMance characTerisTics
Top FET Current Limit
Minimum On-Time Minimum Off-Time
Dropout Voltage
Burst FrequencySwitching Frequency
No Load Supply Current
Top FET Current Limit vs Duty
Cycle
Minimum Load to Full Frequency
(SYNC Hi)
DUTY CYCLE (%)
0
TOP FET CURRENT LIMIT (A)
4
6
10
8
20
40
8612 G11
5
9
7
60
80 100
TEMPERATURE (°C)
–50
CURRENT LIMIT (A)
4
6
7
11
9
–25
0
8612 G12
5
10
8
25 50
75 100 125 150
15% DUTY CYCLE
70% DUTY CYCLE
LOAD CURRENT (A)
0
MINIMUM ON-TIME (ns)
15
25
30
45
1
8612 G13
20
40
35
2 3
4 5 6
V
SYNC
= 0V
V
SYNC
= 3.3V
TEMPERATURE (°C)
–50
SWITCHING FREQUENCY (kHz)
660
710
720
740
8612 G16
700
690
680
670
730
–25 0
25 50 15010075 125
R
T
= 60.4k
INPUT VOLTAGE (V)
0
MINIMUM LOAD (mA)
0
40
50
60
8612 G18
30
20
10
10
20 5030 40
INPUT VOLTAGE (V)
0
INPUT CURRENT (µA)
2.0
2.4
2.6
2.8
3.8
3.2
10
20
8612 G10
2.2
3.4
3.6
3.0
30
40 50
V
OUT
= 5V
TEMPERATURE (°C)
–50
MINIMUM OFF-TIME (ns)
60
80
85
100
–25
8612 G14
75
70
65
95
90
0 25
50 75 150100 125
LOAD CURRENT (mA)
0
SWITCH FREQUENCY (kHz)
0
500
600
800
8612 G17
400
300
200
100
700
100
200 500300 400
V
IN
= 12V
V
OUT
= 5V
L = 3.9µH
LOAD CURRENT (A)
0
DROPOUT VOLTAGE (V)
0
0.3
0.4
0.6
8612 G15
0.2
0.1
0.5
1 2
3 64 5
LT8612
6
8612f
For more information www.linear.com/LT8612
Typical perForMance characTerisTics
Frequency Foldback Soft-Start Tracking
Soft-Start Current
PG Low ThresholdsPG High Thresholds
RT Programmed Switching
Frequency
V
IN
UVLO
Switching Waveforms Switching Waveforms
FB VOLTAGE (V)
0
SWITCHING FREQUENCY (kHz)
300
400
500
0.6
1
8612 G19
200
100
0
0.2 0.4 0.8
600
700
800
V
OUT
= 3.3V
V
IN
= 12V
V
SYNC
= 0V
R
T
= 60.4k
TR/SS VOLTAGE (V)
0
FB VOLTAGE (V)
0.8
1.0
1.2
0.6 1.0
8612 G20
0.6
0.4
0.2 0.4
0.8 1.2 1.4
0.2
0
TEMPERATURE (°C)
–50
SS PIN CURRENT (µA)
2.3
35
8612 G21
2.0
1.8
–25 5 65
1.7
1.6
2.4
2.2
2.1
1.9
95 125 155
V
SS
= 0.5V
TEMPERATURE (°C)
–55
7.0
PG THRESHOLD OFFSET FROM V
REF
(%)
7.5
8.5
9.0
9.5
12.0
10.5
5
65
95 125
8612 G22
8.0
11.0
11.5
10.0
–25
35
155
FB RISING
FB FALLING
TEMPERATURE (°C)
–55
–12.0
PG THRESHOLD OFFSET FROM V
REF
(%)
–11.5
–10.5
–10.0
–9.5
–7.0
–8.5
5
65
95 125
8612 G23
–11.0
–8.0
–7.5
–9.0
–25
35
155
FB RISING
FB FALLING
SWITCHING FREQUENCY (kHz)
0.2
RT PIN RESISTOR (kΩ)
150
200
250
1.8
8612 G24
100
50
125
175
225
75
25
0
0.6
1
1.4
2.2
TEMPERATURE (°C)
–55
INPUT VOLTAGE (V)
3.4
35
8612 G25
2.8
2.4
–25 5 65
2.2
2.0
3.6
3.2
3.0
2.6
95 125 155
I
L
1A/DIV
V
SW
5V/DIV
1µs/DIV
12V
IN
TO 5V
OUT
AT 2A
FRONT PAGE APP
8612 G27
I
L
1A/DIV
V
SW
5V/DIV
5µs/DIV
12V
IN
TO 5V
OUT
AT 20mA; FRONT PAGE APP
V
SYNC
= 0V
8612 G26
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

LT8612EUDE#TRPBF

Mfr. #:
Buy LT8612EUDE#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators 42V, 6A Synchronous Step-Down Regulator with 2.5uA Quiescent Current
Lifecycle:
New from this manufacturer.
Delivery:
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