LTC3564_15 Datasheet, PDF (2/20 Pages) Linear Technology – 2.25MHz, 1.25A Synchronous Step-Down Regulator

LTC3564
ABSOLUTE AXI U RATI GS ^{(Note 1)}
Input Supply Voltage .................................. – 0.3V to 6V
RUN, V_FB Voltages ..................................... – 0.3V to V_IN
SW Voltage (DC) ......................... – 0.3V to (V_IN + 0.3V)
Operating Junction Temperature Range
(Notes 2, 3, 6) ...................................... – 40°C to 125°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
PI CO FIGURATIO
TOP VIEW
V_FB 1
GND 2
V_IN 3
5 RUN
4 SW
S5 PACKAGE
5-LEAD PLASTIC TSOT-23
T_JMAX = 125°C, θ_JA = 215°C/ W, θ_JC = 50°C/ W
TOP VIEW
SW 1
6 RUN
PGND 2
7
5 SGND
V_IN 3
4 V_FB
DCB PACKAGE
6-LEAD (2mm × 3mm) PLASTIC DFN
T_JMAX = 125°C, θ_JA = 64°C/ W, θ_JC = 10.6°C/ W
EXPOSED PAD (PIN 7) IS SGND, MUST BE SOLDERED TO PCB
UW U
ORDER I FOR ATIO
LEAD FREE FINISH
LTC3564ES5#PBF
LTC3564IS5#PBF
LTC3564EDCB#PBF
LTC3564IDCB#PBF
TAPE AND REEL
LTC3564ES5#TRPBF
LTC3564IS5#TRPBF
LTC3564EDCB#TRPBF
LTC3564IDCB#TRPBF
PART MARKING*
LTCYJ
LTCYJ
LDTQ
LDTQ
PACKAGE DESCRIPTION
5-Lead Plastic TSOT-23
5-Lead Plastic TSOT-23
6-Lead (2mm × 3mm) Plastic DFN
6-Lead (2mm × 3mm) Plastic DFN
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–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 nonstandard 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 ● denotes specifications which apply over the full operating junction temperature range, otherwise specifications are T_A = 25°C.
V_IN = 3.6V unless otherwise specified.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
UNITS
I_VFB
V_FB
ΔV_FB
I_PK
V_LOADREG
V_IN
Feedback Current
Regulated Feedback Voltage
Reference Voltage Line Regulation
Peak Inductor Current
Output Voltage Load Regulation
Input Voltage Range
(Note 4)
V_IN = 2.5V to 5.5V (Note 4)
V_IN = 3V, V_FB = 0.5V, Duty Cycle < 35%
●
±30
nA
● 0.5880 0.6 0.6120
V
0.04
0.4
%/V
1.5
2.0
2.5
A
0.5
%
● 2.5
5.5
V
3564f
2