LTC3533 Datasheet, PDF (2/16 Pages) Linear Technology – 2A Wide Input Voltage Synchronous Buck-Boost DC/DC Converter

LTC3533
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V_IN, PV_IN Voltages...........................................–0.3 to 6V
V_OUT, PV_OUT Voltages......................................–0.3 to 6V
SW1, SW2 Voltages
DC...............................................................–0.3 to 6V
Pulsed < 100ns...........................................–0.3 to 7V
V_C, FB, RUN/SS, BURST Voltages..................–0.3 to 6 V
Operating Temperature Range (Note 2) ... –40°C to 85°C
Maximum Junction Temperature (Note 3) ............ 125°C
Storage Temperature Range................... –65°C to 125°C
PACKAGE/ORDER INFORMATION
TOP VIEW
R_T 1
BURST 2
SGND 3
SW1 4
PGND 5
PGND 6
SW2 7
14 V_C
13 FB
12 RUN/SS
15
11 PV_IN
10 V_IN
9 PV_OUT
8 V_OUT
DE PACKAGE
14-LEAD (4mm × 3mm) PLASTIC DFN
T_JMAX = 125°C, θ_JA = 43°C/W, θ_JC = 4.3°C/W
EXPOSED PAD (PIN 15) IS GND, MUST BE SOLDERED TO PCB
ORDER PART NUMBER DE PART MARKING
LTC3533EDE
3533
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.
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, V_OUT = 3.3V, unless otherwise noted.
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Input Operating Range
● 1.8
5.5
V
Output Voltage Adjust Range
● 1.8
5.25
V
Feedback Voltage
● 1.196 1.22 1.244
V
Feedback Input Current
Quiescent Current – Burst Mode Operation
Quiescent Current – Shutdown
V_FB = 1.22V
V_C = 0V, V_BURST = 0V (Note 4)
V_RUN = 0V, Not Including Switch Leakage
1
50
nA
40
50
µA
0.1
1
µA
Quiescent Current – Active
Input Current Limit
V_C = 0V, BURST = 3.6V (Note 4)
700 1100
µA
● 3.5
4.5
A
Peak Current Limit
7
A
Reverse Current Limit
0.5
A
NMOS Switch Leakage
Switches B and C
0.1
5
µA
PMOS Switch Leakage
Switches A and D
0.1
10
µA
NMOS Switch On Resistance
Switches B and C
60
mΩ
PMOS Switch On Resistance
Switches A and D
80
mΩ
Maximum Duty Cycle
Boost (% Switch C On)
Buck (% Switch A On)
● 80
90
%
● 100
%
Minimum Duty Cycle
●
0
%
3533f
2