LTC3855EFE#TRPBF Linear Technology, LTC3855EFE#TRPBF Datasheet - Page 8

• Manufacturer Part Number: LTC3855EFE#TRPBF
• Description: IC CTLR DC/DC DUAL 2PH 38TSSOP
• Manufacturer: Linear Technology
• Series: PolyPhase®r
• Type: Step-Down (Buck)r

Specifications of LTC3855EFE#TRPBF

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.6 ~ 3.3 V, 0.6 ~ 12.5 V
• Current - Output: 25A
• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

LTC3855
Typical perForMance characTerisTics

1.26
1.24
1.22
1.20
1.18
1.16
1.14
1.12
1.10
4.1
3.9
3.7
3.5
3.3
3.1
2.9
2.7
2.5
–50
–40
Shutdown (RUN) Threshold
vs Temperature
Undervoltage Lockout Threshold
(INTV
–25
–20
CC
) vs Temperature
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
25
20
60
50
40
30
20
10
0
–50
RISING
FALLING
Shutdown Current
vs Temperature
50
40
OFF
ON
–25
75
60
0
TEMPERATURE (°C)
100
80
3855
3855
25
G15
G18
125
100
50
75
612
610
608
606
604
602
600
598
596
594
592
520
510
500
490
480
–50
5
100
Regulated Feedback Voltage
vs Temperature
Oscillator Frequency
vs Input Voltage
3855
–25
10
G21
125
15
0
TEMPERATURE (°C)
INPUT VOLTAGE (V)
25
20
50
25
4.5
4.3
4.1
3.9
3.7
3.5
3.3
3.1
2.9
2.7
2.5
75
30
5
Quiescent Current
vs Input Voltage without EXTV
100
35
10
3855
3855
G16
G19
125
40
15
INPUT VOLTAGE (V)
20
900
800
700
600
500
400
300
200
100
60
50
40
30
20
10
0
0
25
–50
5
Oscillator Frequency
vs Temperature
Shutdown Current
vs Input Voltage
30
–25
10
35
V
15
V
0
V
FREQ
TEMPERATURE (°C)
INPUT VOLTAGE (V)
CC
3855
FREQ
FREQ
G22
40
= INTV
25
20
= 1.2V
= GND
CC
50
25
75
30
100
35
3855
3855
3855f
G17
G20
125
40