LTC3417AIFE-1#PBF Linear Technology, LTC3417AIFE-1#PBF Datasheet - Page 17

• 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: -

APPLICATIONS INFORMATION
C
V
OUT1
47μF
OUT1
1.8V
1.5A
L1: MIDCOM DUS-5121-1R5R
C
2.25V TO 5.5V
OUT1
: KEMET C1210C226K8PAC
C1 22pF
R1 511k
V
IN
Figure 4. 1.8V at 1.5A/2.5V at 1A Step-Down Regulators
2200pF
1.5μH
R2
412k
L1
100
C
10μF
95
90
85
80
75
70
IN
C3
0.001
5.9k
R5
V
V
FREQ = 1MHz
REFER TO FIGURE 4
V
OUT1 Effi ciency vs Load Current
IN
OUT
IN
= 3.6V
= 1.8V
0.1μF
C
IN1
0.01
GNDA
SYNC/MODE
SW1
RUN1
V
PHASE
I
TH1
FB1
EFFICIENCY
LOAD CURRENT (A)
LTC3417A-1
V
EXPOSED
IN1
PAD GNDD
0.1
V
IN2
POWER LOSS
RUN2
FREQ
SW2
POR
V
I
TH2
FB2
C
0.1μF
L2: MIDCOM DUS-5121-2R2R
C
IN2
OUT2
1
, C
3417A-1 F04a
IN
V
V
R7
100k
IN
IN
: KEMET C1206C106K4PAC
R6
2.87k
3417A-1 F04
RESET
C4
6800pF
10
2.2μH
412k
10
1
0.1
0.01
0.001
L2
R4
R3 866k
C2 22pF
LTC3417A-1
C
22μF
V
2.5V
1A
OUT2
OUT2
17
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