LTC3419 Datasheet, PDF (2/16 Pages) Linear Technology – Dual Monolithic 600mA Synchronous Step-Down Regulator

LTC3419
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Input Supply Voltage (V_IN) ............................. –0.3 to 6V
V_FB1, V_FB2 ........................................ –0.3V to V_IN + 0.3V
RUN1, RUN2, MODE........................ –0.3V to V_IN + 0.3V
SW1, SW2 ....................................... –0.3V to V_IN + 0.3V
P-Channel SW Source Current (DC) (Note 2).......800mA
N-Channel SW Source Current (DC) (Note 2) ......800mA
Peak SW Source and Sink Current (Note 2) .............1.3A
Operating Temperature Range (Note 3) .......–40 to 85°C
Junction Temperature (Note 6) ............................. 125°C
Storage Temperature Range...................–65°C to 125°C
Lead Temperature (Soldering, 10 sec)
MSOP Package ................................................. 300°C
PACKAGE/ORDER INFORMATION
TOP VIEW
V_FB1 1
8 V_FB2
RUN1 2
7 RUN2
9
MODE 3
6 SW2
SW1 4
5 V_IN
DD PACKAGE
8-LEAD (3mm × 3mm) PLASTIC DFN
T_JMAX = 125°C, θ_JA = 40°C/W
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
V_FB1 1
RUN1 2
MODE 3
SW1 4
GND 5
TOP VIEW
10 V_FB2
9 RUN2
8 SW2
7 V_IN
6 GND
MS PACKAGE
10-LEAD PLASTIC MSOP
T_JMAX = 125°C, θ_JA = 120°C/W
ORDER PART NUMBER
DD PART MARKING
ORDER PART NUMBER
MS PART MARKING
LTC3419EDD
LTC3419EDD-1
LCQJ
LCWW
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
LTC3419EMS
LTC3419EMS-1
LTCQK
LTCWX
ELECTRICAL CHARACTERISTICS The ● 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 noted.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
V_IN
V_IN Operating Voltage
V_UV
V_IN Undervoltage Lockout
V_IN Low to High
I_FB
Feedback Pin Input Current
LTC3419
LTC3419-1
● 2.5
5.5
V
●
2.1
2.5
V
●
±30
nA
●
3
5
μA
V_FBREG1
V_FBREG2
ΔV_{LINE REG}
Regulated Feedback Voltage (Channel 1) LTC3419, 0°C < T_A < 85°C
LTC3419, –40°C < T_A < 85°C
LTC3419-1, –40°C < T_A < 85°C
Regulated Feedback Voltage (Channel 2) LTC3419, 0°C < T_A < 85°C
LTC3419, –40°C < T_A < 85°C
LTC3419-1, –40°C < T_A < 85°C
Reference Voltage Line Regulation
V_IN = 2.5V to 5.5V (Note 7)
0.590 0.600 0.610
V
● 0.588 0.600 0.612
V
● 1.544 1.575 1.606
V
0.590 0.600 0.610
V
● 0.588 0.600 0.612
V
● 1.764 1.8 1.836
V
0.3
0.5
%/V
3419f
2