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LTC3417_15 Datasheet, PDF (2/20 Pages) Linear Technology – Dual Synchronous 1.4A/800mA 4MHz Step-Down DC/DC Regulator | |||
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LTC3417
ABSOLUTE MAXIMUM RATINGS (Note 1)
VIN1, VIN2 Voltages...................................... â 0.3V to 6V
MODE, SW1, SW2, RUN1,
RUN2, VFB1, VFB2, PHASE, FREQ,
ITH1, ITH2 Voltages............... â0.3V to (VIN1/VIN2 + 0.3V)
VIN1 â VIN2, VIN2 â VIN1 .......................................... 0.3V
PGOOD Voltage ........................................... â0.3V to 6V
Operating Ambient Temperature Range
(Note 2) .................................................. â40°C to 85°C
Junction Temperature (Notes 7, 8) ...................... 125°C
Storage Temperature Range
DFN Package..................................... â65°C to 125°C
TSSOP Package ................................ â65°C to 150°C
PIN CONFIGURATION
TOP VIEW
RUN1 1
VIN1 2
ITH1 3
VFB1 4
VFB2 5
ITH2 6
RUN2 7
VIN2 8
16 PGND1
15 SW1
14 PHASE
13 GNDA
17
12 FREQ
11 PGOOD
10 SW2
9 MODE
DHC PACKAGE
16-LEAD (3mm à 5mm) PLASTIC DFN
TJMAX = 125°C, θJA = 43°C/W
EXPOSED PAD (PIN 17) IS PGND2/GNDD, MUST BE SOLDERED TO PCB
GNDD 1
RUN1 2
VIN1 3
ITH1 4
VFB1 5
VFB2 6
ITH2 7
RUN2 8
VIN2 9
PGND2 10
TOP VIEW
21
20 GNDD
19 PGND1
18 SW1
17 PHASE
16 GNDA
15 FREQ
14 PGOOD
13 SW2
12 MODE
11 PGND2
FE PACKAGE
20-LEAD PLASTIC TSSOP
TJMAX = 150°C, θJA = 38°C/W
EXPOSED PAD (PIN 21) IS PGND2/GNDD, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3417EDHC#PBF
LTC3417EDHC#TRPBF 3417
16-Lead (3mm à 3mm) Plastic DFN
LTC3417EFE#PBF
LTC3417EFE#TRPBF
LTC3417EFE
20-Lead Plastic TSSOP
LEAD BASED FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC3417EDHC
LTC3417EDHC#TR
3417
16-Lead (3mm à 3mm) Plastic DFN
LTC3417EFE
LTC3417EFE#TR
LTC3417EFE
20-Lead Plastic TSSOP
Consult LTC Marketing for parts speciï¬ed with wider operating temperature ranges.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel speciï¬cations, go to: http://www.linear.com/tapeandreel/
TEMPERATURE RANGE
â40°C to 85°C
â40°C to 85°C
TEMPERATURE RANGE
â40°C to 85°C
â40°C to 85°C
ELECTRICAL CHARACTERISTICS The l denotes the speciï¬cations which apply over the full operating
temperature range, otherwise speciï¬cations are at TA = 25°C. VIN = 3.6V unless otherwise speciï¬ed. (Note 2)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
VIN1, VIN2
IFB1, IFB2
VFB1, VFB2
ÎVLINEREG
VLOADREG
Operating Voltage Range
Feedback Pin Input Current
Feedback Voltage
Reference Voltage Line Regulation. %/V is the
Percentage Change in VOUT with a Change in VIN
Output Voltage Load Regulation
VIN1 = VIN2
(Note 3)
(Note 3)
VIN = 2.25V to 5V (Note 3)
ITH1, ITH2 = 0.36V (Note 3)
ITH1, ITH2 = 0.84V (Note 3)
â 2.25
5.5
± 0.1
â 0.784 0.8 0.816
0.04 0.2
0.02 0.2
â0.02 â0.2
2
UNITS
V
μA
V
%/V
%
%
3417fd
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