LTC3565_15 Datasheet, PDF (2/22 Pages) Linear Technology – 1.25A, 4MHz, Synchronous Step-Down DC/DC Converter

LTC3565
ABSOLUTE MAXIMUM RATINGS (Note 1)
PV_IN, SV_IN Voltages ..................................... –0.3V to 6V
V_FB, ITH Voltages .......................... –0.3V to (V_IN + 0.3V)
SYNC/MODE, PGOOD Voltage ...... –0.3V to (V_IN + 0.3V)
SW Voltage (DC) ........................... –0.3V to (V_IN + 0.3V)
RUN Voltage ................................................ –0.3V to 6V
Operating Junction Temperature Range
(Notes 2, 5, 8)......................................... –40°C to 125°C
Storage Temperature Range................... –65°C to 125°C
Lead Temperature (Soldering, 10 sec).................... 300°C
PIN CONFIGURATION
TOP VIEW
RT 1
RUN 2
SYNC/MODE 3
SW 4
GND 5
10 ITH
9 V_FB
11
GND
8 PGOOD
7 SV_IN
6 PV_IN
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
T_JMAX = 125°C, θ_JA = 43°C/W, θ_JC = 7.5°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
TOP VIEW
RT 1
10 ITH
RUN 2
SYNC/MODE 3
SW 4
11
GND
9 V_FB
8 PGOOD
7 SV_IN
GND 5
6 PV_IN
MSE PACKAGE
10-LEAD PLASTIC MSOP
T_JMAX = 125°C, θ_JA = 40°C/W, θ_JC = 10°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3565EDD#PBF
LTC3565EDD#TRPBF
LDNR
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3565IDD#PBF
LTC3565IDD#TRPBF
LDNR
10-Lead (3mm × 3mm) Plastic DFN
–40°C to 125°C
LTC3565EMSE#PBF
LTC3565EMSE#TRPBF LTDVJ
10-Lead Plastic MSOP
–40°C to 125°C
LTC3565IMSE#PBF
LTC3565IMSE#TRPBF LTDVJ
10-Lead Plastic MSOP
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
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/
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at T_J = 25°C. V_IN = 3.6V, R_T = 125k unless otherwise specified. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
V_IN
I_FB
V_FB
ΔV_LINEREG
ΔV_LOADREG
g_m(EA)
Operating Voltage Range
Feedback Pin Input Current
Feedback Voltage
Reference Voltage Line Regulation
Output Voltage Load Regulation
Error Amplifier Transconductance
(Note 3)
(Note 3)
V_IN = 2.5V to 5.5V
ITH = 0.55V to 0.9V
ITH Pin Load = ±5µA (Note 3)
2.5
5.5
V
50
nA
l _0.588
0.6
0.612
V
0.04
0.2
%/V
l
0.02
0.2
%
300
µS
3565fc
2
For more information www.linear.com/LTC3565