LTC3402_15 Datasheet, PDF (2/16 Pages) Linear Technology – 2A, 3MHz Micropower Synchronous Boost Converter

LTC3402
ABSOLUTE AXI U RATI GS
(Note 1)
V_IN, V_OUT Voltages ...................................... – 0.5V to 6V
SW Voltage ................................................. – 0.5V to 6V
V_C, R_t Voltages ......................... – 0.5V to (V_OUT + 0.3V)
PGOOD, SHDN, FB, MODE Voltages ........... – 0.5V to 6V
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 125°C
Lead Temperature (Soldering, 10 sec).................. 300°C
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/
UW U
PACKAGE/ORDER I FOR ATIO
R_t 1
MODE 2
V_IN 3
SW 4
GND 5
TOP VIEW
10 SHDN
9 V_C
8 FB
7 V_OUT
6 PGOOD
MS PACKAGE
10-LEAD PLASTIC MSOP
T_JMAX = 125°C
θ_JA = 130°C/ W 1 LAYER BOARD
θ_JA = 100°C/ W 4 LAYER BOARD
ORDER PART
NUMBER
LTC3402EMS
MS PART MARKING
LTSK
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The ● denotes specifications that apply over the full operating temperature range, otherwise specifications are at T_A = 25°C.
V_IN = 1.2V, V_OUT = 3.3V unless otherwise noted.
PARAMETER
CONDITIONS
MIN TYP MAX
Minimum Start-Up Voltage
Minimum Operating Voltage
I_LOAD = <1mA
(Note 4)
0.85
1.0
●
0.5
Output Voltage Adjust Range
● 2.6
5.5
Feedback Voltage
● 1.22 1.25 1.28
Feedback Input Current
Quiescent Current—Burst Mode Operation
Quiescent Current—SHDN
V_FB = 1.25V
V_C = 0V, MODE/SYNC = 3.3V (Note 3)
SHDN = 0V, Not Including Switch Leakage
1
50
38
65
0.1
1
Quiescent Current—Active
NMOS Switch Leakage
V_C = 0V, MODE/SYNC = 0V, R_t = 300k (Note 3)
440 800
0.1
5
PMOS Switch Leakage
0.1
10
NMOS Switch On Resistance
0.16
PMOS Switch On Resistance
0.18
NMOS Current Limit
●2
2.5
NMOS Burst Current Limit
0.66
Maximum Duty Cycle
Minimum Duty Cycle
R_t = 15k
● 80
85
●
0
Switching Frequency
MODE/SYNC Input High
R_t = 15k
● 1.6
2
2.4
1.4
MODE/SYNC Input Low
0.4
MODE/SYNC Input Current
Error Amp Transconductance
PGOOD Threshold
V_MODE/SYNC = 5.5V
ΔI = – 5μA to 5μA, V_C = V_FB
Referenced to Feedback Voltage
0.01
1
85
–6
–9
– 12
UNITS
V
V
V
V
nA
μA
μA
μA
μA
μA
Ω
Ω
A
A
%
%
MHz
V
V
μA
μmhos
%
3402fb
2