LTC3788IGN-1#PBF Linear Technology, LTC3788IGN-1#PBF Datasheet - Page 5

• Manufacturer Part Number: LTC3788IGN-1#PBF
• Description: IC CTLR BOOST 2PH DUAL 28SSOP
• Manufacturer: Linear Technology
• Type: Step-Up (Boost)r

Specifications of LTC3788IGN-1#PBF

• Internal Switch(s): No
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: Adj to 60V
• Current - Output: 25A
• Frequency - Switching: 105kHz ~ 760kHz
• Voltage - Input: 4.5 ~ 38 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

TYPICAL PERFORMANCE CHARACTERISTICS
LOAD STEP
500mV/DIV
INDUCTOR
CURRENT
2A/DIV
5A/DIV
V
100
100
OUT
99
98
97
96
95
94
93
90
92
91
90
80
70
60
40
30
20
10
50
0
0.01
Effi ciency and Power Loss
vs Output Current
0
V
V
FIGURE 9 CIRCUIT
Effi ciency vs Input Voltage
Load Step
Burst Mode Operation
I
FIGURE 9 CIRCUIT
IN
OUT
V
LOAD
OUT
= 12V
= 24V
BURST EFFICIENCY
PULSE-SKIPPING
EFFICIENCY
CCM EFFICIENCY
= 2A
= 12V
5
OUTPUT CURRENT (A)
V
INPUT VOLTAGE (V)
0.1
OUT
10
200μs/DIV
= 24V
15
V
V
FIGURE 9 CIRCUIT
IN
OUT
1
= 12V
= 24V
20
BURST LOSS
PULSE-SKIPPING
LOSS
CCM LOSS
37881 G05
37881 G03
10
25
10000
1000
100
10
1
0.1
37881 G01
LOAD STEP
LOAD STEP
500mV/DIV
500mV/DIV
INDUCTOR
INDUCTOR
CURRENT
CURRENT
2A/DIV
5A/DIV
2A/DIV
5A/DIV
V
V
100
OUT
OUT
0.00001
20
10
90
80
70
60
50
40
30
0
Effi ciency and Power Loss
vs Output Current
V
V
FIGURE 9 CIRCUIT
V
V
FIGURE 9 CIRCUIT
Load Step
Forced Continuous Mode
Load Step
Pulse-Skipping Mode
IN
OUT
IN
OUT
= 12V
= 12V
0.0001 0.001
= 24V
= 24V
BURST EFFICIENCY
BURST LOSS
OUTPUT CURRENT (A)
200μs/DIV
200μs/DIV
0.01
V
V
Burst Mode OPERATION
FIGURE 9 CIRCUIT
IN
OUT
= 12V
= 24V
0.1
1
37881 G04
37881 G06
37881 G02
LTC3788-1
10
1000
100
10
1
0.1
10000
37881fa
5