LTC3865EFE#PBF Linear Technology, LTC3865EFE#PBF Datasheet - Page 7

• Manufacturer Part Number: LTC3865EFE#PBF
• Description: IC BUCK SYNC ADJ DUAL 38TSSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC3865EFE#PBF

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.6 ~ 5 V
• Frequency - Switching: 250kHz ~ 770kHz
• Voltage - Input: 4.5 ~ 38 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 38-TSSOP Exposed Pad, 38-eTSSOP, 38-HTSSOP
• Primary Input Voltage: 15V
• No. Of Outputs: 2
• Output Voltage: 5V
• Output Current: 25A
• No. Of Pins: 38
• Operating Temperature Range: -40°C To +85°C
• Msl: MSL 1 - Unlimited
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Power - Output: -

TYPICAL PERFORMANCE CHARACTERISTICS
V
V
OUT1
OUT2
500mV/DIV
500mV/DIV
1Ω LOAD
1Ω LOAD
–20
–40
TK/SS1
TK/SS2
80
60
40
20
2V/DIV
= 1.5V
= 1.2V
0
0
Current Sense Threshold
vs I
Tracking Up and Down with
External Ramp
(Forced Continuous Mode)
TH
Voltage
0.5
100
90
80
70
60
50
40
30
20
10
I
0
LIM
0
V
Maximum Current Sense
Voltage vs Feedback Voltage
(Current Foldback)
ITH
= FLOAT
1
20ms/DIV
(V)
I
I
0.1
LIM
LIM
= INTV
= GND
FEEDBACK VOLTAGE (V)
1.5
0.2
CC
I
I
LIM
LIM
3865 G10
I
LIM
0.3
= INTV
= FLOAT
= GND
3865 G07
2
0.4
CC
0.5
70
60
40
30
20
80
50
10
3
0
5
4
2
1
0
3865 G13
0
5
Maximum Current Sense
Threshold vs Common Mode
Voltage
0.6
Quiescent Current vs Input
Voltage without EXTV
V
10
SENSE
1
15
COMMON MODE VOLTAGE (V)
INPUT VOLTAGE (V)
I
I
LIM
LIM
I
LIM
2
20
= INTV
= FLOAT
= GND
25
CC
3
CC
30
4
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
35
0
3865 G08
3865 G11
–50
TK/SS Pull-Up Current
vs Temperature
40
5
–25
LTC3865/LTC3865-1
0
TEMPERATURE (°C)
4.50
5.00
4.75
4.25
4.00
3.75
3.50
3.25
3.00
5.25
100
90
80
70
60
50
40
30
20
10
0
0
0
25
INTV
Maximum Current Sense
Threshold vs Duty Cycle
5
50
CC
20
Line Regulation
10
75
INPUT VOLTAGE (V)
DUTY CYCLE (%)
I
15
I
LIM
LIM
I
40
LIM
100
= INTV
= FLOAT
3865 G14
= GND
20
125
60
CC
25
30
80
35
3865 G12
3865 G09
3865fb
7
100
40