LTC3417AIFE-1#PBF Linear Technology, LTC3417AIFE-1#PBF Datasheet - Page 5

• Manufacturer Part Number: LTC3417AIFE-1#PBF
• Description: IC BUCK SYNC ADJ 1A/1.5A 20TSSOP
• Manufacturer: Linear Technology
• Type: Step-Down (Buck)r

Specifications of LTC3417AIFE-1#PBF

• Internal Switch(s): Yes
• Synchronous Rectifier: Yes
• Number Of Outputs: 2
• Voltage - Output: 0.8 ~ 5 V
• Current - Output: 1A, 1.5A
• Frequency - Switching: 1.5MHz, 0.6MHz ~ 4MHz
• Voltage - Input: 2.25 ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP Exposed Pad, 20-eTSSOP, 20-HTSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

TYPICAL PERFORMANCE CHARACTERISTICS
100
100
95
90
85
80
75
70
65
60
95
80
70
94
92
90
88
86
84
82
90
85
75
0.001
2
OUT1 Effi ciency vs Load Current
OUT2 Effi ciency vs V
(Pulse Skipping Mode)
Effi ciency vs Frequency OUT1
0
V
V
IN
OUT
= 2.5V
2.5
= 1.8V
1
I
LOAD
0.01
I
3
LOAD CURRENT (A)
LOAD
FREQUENCY (MHz)
= 800mA
2
3.5
= 250mA
V
IN
0.1
(V)
REFER TO FIGURE 4
V
REFER TO FIGURE 4
4
OUT
3
IN
= 2.5V
Burst Mode
OPERATION
PULSE SKIP
FORCED
CONTINUOUS
4.5
T
V
V
I
OUT
A
IN
OUT
1
= 27°C
= 3.6V
4
= 300mA
= 1.8V
3417A-1 G07
5
3417A-1 G10
3417A-1 G13
10
5
100mV/DIV
500mA/DIV
V
I
OUT1
OUT1
100
95
90
85
80
75
70
65
60
90
85
80
75
70
65
60
0.001
Effi ciency vs Frequency OUT2
OUT2 Effi ciency vs Load Current
Load Step OUT1
0
V
V
I
REFER TO FIGURE 4
V
V
LOAD
IN
OUT
IN
OUT
= 3.6V
= 3.6V
= 1.8V
= 0.25A to 1.4A
= 2.5V
0.01
1
LOAD CURRENT (A)
FREQUENCY (MHz)
100μs/DIV
0.1
2
REFER TO FIGURE 4
Burst Mode
OPERATION
PULSE SKIP
FORCED
CONTINUOUS
T
V
V
I
OUT
A
IN
OUT
1
3
= 27°C
= 3.6V
= 100mA
= 2.5V
3417A-1 G08
3417A-1 G11
3417A-1 G14
10
100mV/DIV
500mA/DIV
V
I
0.095
0.105
0.100
0.090
0.085
0.080
OUT2
OUT2
100
95
70
90
85
80
75
2
OUT1 Effi ciency vs V
(Burst Mode Operation)
2
V
V
I
REFER TO FIGURE 4
R
Load Step OUT2
V
LOAD
IN
OUT
OUT
DS(ON)
N-CHANNEL SWITCH
= 3.6V
2.5
2.5
= 2.5V
= 0.25A to 0.8A
= 1.8V
P-CHANNEL SWITCH
LTC3417A-1
I
vs V
LOAD
3
3
= 1.4A
IN
3.5
100μs/DIV
3.5
V
V
OUT1
IN
IN
(V)
(V)
I
LOAD
4
4
REFER TO FIGURE 4
IN
= 460mA
4.5
4.5
T
A =
3417A-1 G09
5
3417A-1 G12
3417A-1 G15
3417a1fa
5
27°C
5
5.5
5.5