LTC3609EWKG#PBF Linear Technology, LTC3609EWKG#PBF Datasheet - Page 7

• Manufacturer Part Number: LTC3609EWKG#PBF
• Description: IC DC/DC CONV STP-DWN 6A 52-QFN
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC3609EWKG#PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.6 ~ 36 V
• Current - Output: 6A
• Voltage - Input: 4 ~ 32 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 52-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Frequency - Switching: -

Typical perForMance characTerisTics
–0.25
–0.50
–0.75
–1.00
–1.25
–1.50
–0.10
–0.20
–0.30
–0.40
0.30
0.20
0.10
4.0
3.5
3.0
2.5
2.0
0
0
–50
–50
0
INTV
FCB Pin Current vs Temperature
Undervoltage Lockout Threshold
vs Temperature
–25
–25
CC
10
INTV
Load Regulation
0
0
TEMPERATURE (°C)
CC
TEMPERATURE (°C)
LOAD CURRENT (mA)
20
25
25
50
50
30
75
75
40
100
100
3609 G24
3609 G22
3609 G27
125
125
50
200mV/DIV
5A/DIV
V
OUT
–1
–2
10
I
3
2
1
0
8
6
4
2
0
L
–50 –25
–50 –25
RUN/SS Pin Current
vs Temperature
Load Step
LOAD STEP 1A TO 4A
V
V
FCB = 0V
FIGURE 8 CIRCUIT
EXTV
vs Temperature
IN
OUT
f = 500kHz
= 24V
= 12V
CC
Switch Resistance
0
0
PULL-DOWN CURRENT
TEMPERATURE (°C)
TEMPERATURE (°C)
PULL-UP CURRENT
25
25
40µs/DIV
50
50
75
75
100
100
3609 G25
3609 G23
3609 G29
125
125
100
5.0
4.5
4.0
3.5
3.0
25
20
15
10
95
90
85
80
75
70
65
60
55
50
5
0
0.01
–50
400
RUN/SS Pin Current
vs Temperature
I
Efficiency vs Load Current
FIGURE 8 CIRCUIT
V
EXTVCC
IN
= 24V
–25
DCM
500
vs Frequency
0
LATCHOFF THRESHOLD
TEMPERATURE (°C)
600
LOAD CURRENT (A)
FREQUENCY (kHz)
0.1
LATCHOFF ENABLE
CCM
25
700
LTC3609
V
FREQUENCY = 500kHz
IN
50
= 24V
800
1
75
900
100
3609 G28
3609 G26
3609 G30
3609fb

1000
125
10