Datasheet

LTC3417A
2
3417afc
absoluTe MaxiMuM raTings
V
IN1
, V
IN2
Voltages ...................................... –0.3V to 6V
SYNC/MODE, SW1, SW2, RUN1,
RUN2, V
FB1
, V
FB2
, PHASE, FREQ,
I
TH1
, I
TH2
Voltages............... –0.3V to (V
IN1
/V
IN2
+ 0.3V)
V
IN1
– V
IN2
, V
IN2
– V
IN1
.......................................... 0.3V
(Note 1)
16
15
14
13
12
11
10
9
17
1
2
3
4
5
6
7
8
PGND1
SW1
PHASE
GNDA
FREQ
PGOOD
SW2
SYNC/MODE
RUN1
V
IN1
I
TH1
V
FB1
V
FB2
I
TH2
RUN2
V
IN2
TOP VIEW
DHC PACKAGE
16-LEAD (3mm × 5mm) PLASTIC DFN
T
JMAX
= 125°C, θ
JA
= 43°C/W
EXPOSED PAD (PIN 17) IS PGND2/GNDD, MUST BE SOLDERED TO PCB
FE PACKAGE
20-LEAD PLASTIC TSSOP
1
2
3
4
5
6
7
8
9
10
TOP VIEW
20
19
18
17
16
15
14
13
12
11
GNDD
RUN1
V
IN1
I
TH1
V
FB1
V
FB2
I
TH2
RUN2
V
IN2
PGND2
GNDD
PGND1
SW1
PHASE
GNDA
FREQ
PGOOD
SW2
SYNC/MODE
PGND2
21
T
JMAX
= 125°C, θ
JA
= 38°C/W
EXPOSED PAD (PIN 21) IS PGND2/GNDD, MUST BE SOLDERED TO PCB
pin conFiguraTion
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3417AEDHC#PBF LTC3417AEDHC#TRPBF 3417A 16-Lead (3mm × 3mm) Plastic DFN –40°C to 85°C
LTC3417AEFE#PBF LTC3417AEFE#TRPBF LTC3417AEFE 20-Lead Plastic TSSOP –40°C to 85°C
LTC3417AIFE#PBF LTC3417AIFE#TRPBF LTC3417AIFE 20-Lead Plastic TSSOP –40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
PGOOD Voltage ........................................... –0.3V to 6V
Operating Ambient Temperature Range
(Note 2) ..................................................–40°C to 85°C
Junction Temperature (Notes 7, 8) ...................... 125°C
Storage Temperature Range ................... – 65°C to 125°C
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
IN1
, V
IN2
Operating Voltage Range V
IN1
= V
IN2
2.25 5.5 V
I
FB1
, I
FB2
Feedback Pin Input Current (Note 3) ±0.1 µA
V
FB1
, V
FB2
Feedback Voltage (Note 3)
●
0.784 0.8 0.816 V
∆V
LINEREG
Reference Voltage Line Regulation. %/V is the
Percentage Change in V
OUT
with a Change in V
IN
V
IN
= 2.25V to 5V (Note 3) 0.04 0.2 %/V
V
LOADREG
Output Voltage Load Regulation I
TH1
, I
TH2
= 0.36V (Note 3)
I
TH1
, I
TH2
= 0.84V (Note 3)
0.02
–0.02
0.2
–0.2
%
%
g
m(EA)
Error Amplifier Transconductance I
TH1
, I
TH2(PINLOAD)
= ±5µA (Note 3) 1400 µS
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 3.6V unless otherwise specified. (Note 2)